CN103187089B - Bit line gating device and gating method - Google Patents
Bit line gating device and gating method Download PDFInfo
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- CN103187089B CN103187089B CN201110445196.1A CN201110445196A CN103187089B CN 103187089 B CN103187089 B CN 103187089B CN 201110445196 A CN201110445196 A CN 201110445196A CN 103187089 B CN103187089 B CN 103187089B
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Abstract
The invention provides a bit line gating device and a bit line gating method, wherein the bit line gating device comprises twelve control signal applying ends and at least one gating module comprising eight three-tube units and four operation signal applying ends, wherein one operation signal applying end is connected with six gating tubes of the two three-tube units, and control signal connecting ports of the gating tubes connected with the same operation signal applying end are respectively connected with six gating control signal applying ends of the twelve gating control signal applying ends; the operation signal connection ports of the two gate tubes connected with the same gating control signal application end are respectively connected with different operation signal application ends, and the bit line connection ports are connected with adjacent odd bit lines or adjacent even bit lines. According to the bit line gating device, two gating control signals can gate any 4 continuous bit lines in a plurality of continuous bit lines, and the gating efficiency of the gating control signals is improved.
Description
Technical field
The present invention relates to memory area, particularly relate to bit line strobe device and the gating method of storage array.
Background technology
Along with the increase of high-density city array demand, virtual address structure storage array is more and more widely used in memory storage.Virtual address structure storage array is see Fig. 1, the storage unit cell00 of storage array 10, cell01 ... cellMN is arranged in an array with the form of the capable N row of M, each storage unit comprises multiple connectivity port, one of them connectivity port is connected with wordline strobe unit as control port, two connectivity ports connect a bit lines respectively, bit line is connected with bit line strobe device 11, the bit line connectivity port of every array storage unit and the storage unit of adjacent column share same bit line, in Fig. 1, same bit line B1 is shared in the bit line connectivity port of storage unit cell00 column storage unit and the bit line connectivity port of storage unit cell01 column storage unit.Wordline strobe unit and bit line strobe device read storage array and the important device of test operation, and wherein, wordline strobe unit is for opening storage unit, and bit line strobe device is used for applying the operation signals such as reading, programming to the bit line of storage unit.
Bit line strobe device comprises multiple gating unit, puts on the different gating unit of the gate control signal gating of bit line strobe device by change.When operating the storage unit in storage array, the device applying operation signal is connected with the bit line of storage unit by the gating unit be strobed in bit line strobe device.Gating unit can adopt field effect transistor, in Fig. 1, control signal applies end P0, P1, P2 ... PN+1 connects field effect transistor M 0, M1, M2 ... MN+1, if control signal apply end receive produced by code translator bit line strobe control signal A0, A1, A2 ... just the field effect transistor that it is connected is opened, thus realize the gating of pairs of bit line, and level signal is made to be passed to the bit line be strobed from the device of operation signal.To read the read operation process that cell00 illustrates strobe unit, bit line strobe control signal A0 gating bit line B0, bit line strobe control signal A1 gating bit line B1, and wordline strobe unit gating wordline Z0.By the potential operations signal applying low level generator respectively to bit line B0 and B1 of gating He provide the device of predefined current potential to provide, obtain and read current Ib it, realize the read operation to cell00.
When to the storage unit read operation of in storage array, be generally a gating wordline being closely connected of storage unit and two bit lines therewith.But, when only gating two bit lines and when applying signal to it, the some bit lines adjacent with this two bit lines do not carry out the process such as gating, be in floating state, if there is electric potential difference, can leakage current be caused, the result of impact operation, causes reading the accurate not even mistake of result.In order to avoid Leakage Current, can simultaneously gating be read the adjacent continuous print multiple bit lines of storage unit, apply to read signal to two bit lines being read unit, making many continuous bit lines adjacent with being read storage unit reduce leakage current by being connected level generator, improving reading accuracy.In existing bit line strobe device, gate control signal only can gating one bit lines, when needs gating n (n>2) root bit line, corresponding gating 1 bit lines of each gate control signal, required gate control signal is n, when therefore operating at every turn, needed for gating, the bit line of number needs more gate control signal, and using more gate control signal to mean increases design of encoder complexity, and the gating efficiency of gate control signal is not high.
In prior art, see Fig. 1, the every bit lines of gating, all need to arrange the external operation signal generator be specifically connected with strobe unit, what which increase external circuits arranges complexity.The bit line strobe device of the present embodiment can multiplexing external operation signal generator provides to different bit lines operation signal, and what while improving gate control signal gating efficiency, reduce external circuits in bit line strobe process arranges complexity.
Bit line strobe device of the present invention can comprise the gating module shown in multiple Fig. 2, and such bit line strobe device can realize the gating of arbitrary continuation 4 bit lines a line in memory cell array being comprised to more storage unit.
Summary of the invention
In bit line strobe device of the present invention, gate control signal can gating two bit lines, improves the gating efficiency of gate control signal.
In order to achieve the above object, the invention provides a kind of bit line strobe device, comprise eight three pipe units, four operation signals apply end, and 12 gate control signal apply end, wherein:
Described three pipe units comprise three gate tubes, and each gate tube comprises three connectivity ports: control signal connectivity port, bit line connectivity port and operation signal connectivity port; The operation signal connectivity port of three gate tubes of three pipe units in described eight three pipe units is connected to same described operation signal and applies end, the gating signal of each gate tube applies end and connects different gate control signal applying ends, and the bit line connectivity port of each gate tube connects not corresponding lines; The bit line connectivity port of described three gate tubes connects adjacent odd bit lines or adjacent even bitlines;
A described operation signal applies described three pipe units of end connection two, and the control signal connectivity port connecting six gate tubes of same described operation signal applying end connects described 12 gate control signal six gate control signal applied in end respectively and applies to hold;
A described gate control signal applies end connection two described gate tubes, the operation signal connectivity port connecting two gate tubes of same gate control signal applying end connects different described operation signals respectively and applies end, and the bit line connectivity port connecting two gate tubes that the applying of same gate control signal is held connects adjacent odd bit lines or adjacent even bitlines.
Correspondingly, present invention also offers a kind of bit line strobe method, be applied to described bit line strobe device, described bit line strobe method comprises:
Two gate control signal are applied to the control signal link of multiple gate tube, wherein the first gate control signal and the second gate control signal are applied to the control signal connectivity port of multiple gate tube respectively, the bit line connectivity port applying multiple gate tubes of described first gate control signal connects many neighboring odd numbered bit line respectively, and the bit line connectivity port applying multiple gate tubes of described second gate control signal gating connects many adjacent even numbered bit lines corresponding with described many neighboring odd numbered bit line respectively;
Four operation signals are that the bit line be connected with the described gate tube be strobed applies operation signal respectively by the gate tube be strobed, wherein, a described operation signal is applied to the operation signal connectivity port of multiple gate tube, applies different control signals in the gate control signal connectivity port of the multiple gate tubes applying same operation signal.
Compared with prior art, the present invention has following advantages:
The invention provides a kind of bit line strobe device, comprise 12 gate control signal and apply end and at least one gating module, wherein, described gating module comprises eight three pipe units and four operation signals apply end, described three pipe units comprise three gate tubes, and each gate tube comprises three connectivity ports: control signal connectivity port, bit line connectivity port and operation signal connectivity port; An operation signal applies six gate tubes of end connection two three pipe units, and the control signal connectivity port connecting six gate tubes of same described operation signal applying end connects described 12 gate control signal six gate control signal applied in end respectively and applies to hold; A described gate control signal applies end connection two described gate tubes, the operation signal connectivity port connecting two gate tubes of same gate control signal applying end connects different described operation signals respectively and applies end, and the bit line connectivity port connecting two gate tubes that the applying of same gate control signal is held connects adjacent odd bit lines or adjacent even bitlines; Described 12 gate control signal apply end and are connected with the gate tube of multiple gating module, the gate tube of described multiple gating module connects many continuous bit lines, wherein, four continuous bit lines are had to be connected with the gate tube in two described gating module in described many continuous bit lines.Adopt bit line strobe device of the present invention, two gate control signal can any 4 continuous bit lines in the continuous bit line of gating many, improve the gating efficiency of gate control signal.
In addition, in prior art, the every bit lines of gating, all need to arrange the external operation signal generator be specifically connected with strobe unit, adopt bit line strobe device of the present invention can multiplexing external operation signal generator provides to different bit lines operation signal, what while improving gate control signal gating efficiency, reduce external circuits in bit line strobe process arranges complexity.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of prior art neutrality line strobe unit gating bit line;
Fig. 2 is the bit line strobe device schematic diagram of first embodiment of the invention;
Fig. 3 is the bit line strobe device schematic diagram of second embodiment of the invention;
Fig. 4 is that bit line strobe device of the present invention carries out storage unit reading schematic diagram.
Embodiment
For enabling above-mentioned purpose of the present invention, feature and advantage become apparent more, are described in detail the specific embodiment of the present invention below in conjunction with accompanying drawing.Set forth a lot of detail in the following description so that fully understand the present invention, but the present invention can also adopt other to be different from alternate manner described here to implement, therefore the present invention is not by the restriction of following public specific embodiment.Secondly, the present invention is described in detail in conjunction with schematic diagram, and when describing the embodiment of the present invention in detail, for ease of illustrating, described schematic diagram is example, and it should not limit the scope of protection of the invention at this.
In existing bit line strobe device, gate control signal only can gating one bit lines, when needs gating n (n>2) root bit line, required gate control signal is n, when therefore operating at every turn, needed for gating, the bit line of number needs more gate control signal, the design complexities of bit line strobe device is higher, and the gating efficiency of gate control signal is not high.
For the problem that the gating efficiency solving existing bit line strobe device gate control signal is not high, the invention provides a kind of new bit line strobe device, comprise 12 gate control signal and apply end and at least one gating module, wherein, described gating module comprises eight three pipe units and four operation signals apply end, wherein:
Each described three pipe units comprise three gate tubes, and each gate tube comprises three connectivity ports: control signal connectivity port, bit line connectivity port and operation signal connectivity port; The operation signal connectivity port of three gate tubes of three pipe units in described eight three pipe units is connected to same described operation signal and applies end, the gating signal of each gate tube applies end and connects different gate control signal applying ends, and the bit line connectivity port of each gate tube connects not corresponding lines; The bit line connectivity port of described three gate tubes connects adjacent odd bit lines or adjacent even bitlines;
A described operation signal applies six gate tubes of described three pipe units of end connection two, and the control signal connectivity port connecting six gate tubes of same described operation signal applying end connects described 12 gate control signal six gate control signal applied in end respectively and applies to hold;
A described gate control signal applies end connection two described gate tubes, the operation signal connectivity port connecting two gate tubes of same gate control signal applying end connects different described operation signals respectively and applies end, and the bit line connectivity port connecting two gate tubes that the applying of same gate control signal is held connects adjacent odd bit lines or adjacent even bitlines;
Described 12 gate control signal apply end and are connected with the gate tube of multiple gating module, and the gate tube of described multiple gating module connects many continuous bit lines, wherein,
Four continuous bit lines are had to be connected with the gate tube in two described gating module in described many continuous bit lines.
This bit line strobe device can make odd bit lines that a bit line strobe control signal gating many is adjacent or even bitlines, improves the gating efficiency of gate control signal.
Embodiment one:
See Fig. 2, the bit line strobe device of the present embodiment comprises the schematic diagram of a gating module, comprising:
Eight three pipe units, be respectively: the one or three pipe unit N1 (in Fig. 2 shown in dotted line frame), the two or three pipe unit N2, the three or three pipe unit N3, the four or three pipe unit N4, the five or three pipe unit N5, the six or three pipe unit N6, the seven or three pipe unit N7 and the eight or three pipe unit N8, wherein each three pipe units comprise three gate tubes, and each gate tube comprises three connectivity ports: control signal connectivity port, bit line connectivity port and operation signal connectivity port;
Four operation signals apply end, for reading cells of memory arrays, the operation such as write time apply operation signal, be respectively: the first operation signal applies end E1, the second operation signal applies end E2, the 3rd operation signal applies end E3 and the first operation signal applies end E4;
12 control signals apply end, for applying the bit line strobe control signal that code translator produces, be respectively: the first control signal applies end C01, second control signal applies end C02, 3rd control signal applies end C03, 4th control signal applies end C04, 5th control signal applies end C05, 6th control signal applies end C06, 7th control signal applies end C07, 8th control signal applies end C08, 9th control signal applies end C09, tenth control signal applies end C10, 11 control signal applies end C11 and the 12 control signal applies end C12, wherein the first to the 6th control signal applies the gating of end for controlling odd bit lines, 7th to the 12 control signal applies the gating of end for controlling even bitlines.
In Fig. 2, bit line BL1 to bit line BL12 is the continuous bit line of 11 storage unit, wherein, bit line BL1, bit line BL3, bit line BL5, bit line BL7, bit line BL9 and bit line BL11 are continuum method bit line, correspondingly, bit line BL2, bit line BL4, bit line BL6, bit line BL8, bit line BL10 and bit line BL12 are continuous even bitlines.
Particularly, three gate tubes are included in each three pipe units of bit line strobe device, for the one or three pipe unit N1, comprise three gate tubes from left to right: the first gate tube R1, the second gate tube R2 and the 3rd gate tube R3, the operation signal connectivity port of three gate tubes is all connected to the first operation signal and applies end E1, wherein, the control signal connectivity port of the first gate tube R1 connects the 6th control signal and applies end C06, and bit line connectivity port connects odd bit lines BL1; The control signal connectivity port of the second gate tube R2 connects the 5th control signal and applies end C05, and bit line connectivity port connects odd bit lines BL3; The control signal connectivity port of the 3rd gate tube R3 connects the 4th control signal and applies end C04, and bit line connectivity port connects odd bit lines BL5.
The operation signal connectivity port of three gate tubes of the three or three pipe unit N3 is all connected to the first operation signal and applies end E1, wherein, the control signal connectivity port of the first gate tube of the three or three pipe unit connects the 3rd control signal and applies end C03, and bit line connectivity port connects odd bit lines BL5; The control signal connectivity port of the second gate tube of the three or three pipe unit connects the second control signal and applies end C02, and bit line connectivity port connects odd bit lines BL7; The control signal connectivity port of the 3rd gate tube of the three or three pipe unit connects the first control signal and applies end C01, and bit line connectivity port connects odd bit lines BL9.
The operation signal connectivity port of three gate tubes of the two or three pipe unit N2 is all connected to the second operation signal and applies end E2, wherein, the control signal connectivity port of the first gate tube of the two or three pipe unit connects the 6th control signal and applies end C06, and bit line connectivity port connects odd bit lines BL3; The control signal connectivity port of the second gate tube of the two or three pipe unit connects the 5th control signal and applies end C05, and bit line connectivity port connects odd bit lines BL5; The control signal connectivity port of the 3rd gate tube of the two or three pipe unit connects the 4th control signal and applies end C04, and bit line connectivity port connects odd bit lines BL7.
The operation signal connectivity port of three gate tubes of the four or three pipe unit N4 is all connected to the second operation signal and applies end E2, wherein, the control signal connectivity port of the first gate tube of the four or three pipe unit connects the 3rd control signal and applies end C03, and bit line connectivity port connects odd bit lines BL7; The control signal connectivity port of the second gate tube of the four or three pipe unit connects the second control signal and applies end C02, and bit line connectivity port connects odd bit lines BL9; The control signal connectivity port of the 3rd gate tube of the four or three pipe unit connects the first control signal and applies end C01, and bit line connectivity port connects odd bit lines BL11.
The operation signal connectivity port of three gate tubes of the five or three pipe unit N5 is all connected to the 3rd operation signal and applies end E3, wherein, the control signal connectivity port of the first gate tube of the five or three pipe unit connects the 7th control signal and applies end C07, and bit line connectivity port connects even bitlines BL2; The control signal connectivity port of the second gate tube of the five or three pipe unit connects the 8th control signal and applies end C08, and bit line connectivity port connects even bitlines BL4; The control signal connectivity port of the 3rd gate tube of the five or three pipe unit connects the 9th control signal and applies end C09, and bit line connectivity port connects even bitlines BL6.
The operation signal connectivity port of three gate tubes of the seven or three pipe unit N7 is all connected to the 3rd operation signal and applies end E3, wherein, the control signal connectivity port of the first gate tube of the seven or three pipe unit connects the tenth control signal and applies end C10, and bit line connectivity port connects even bitlines BL6; The control signal connectivity port of the second gate tube of the seven or three pipe unit connects the 11 control signal and applies end C11, and bit line connectivity port connects even bitlines BL8; The control signal connectivity port of the 3rd gate tube of the seven or three pipe unit connects the 12 control signal and applies end C12, and bit line connectivity port connects even bitlines BL10.
The operation signal connectivity port of three gate tubes of the six or three pipe unit N6 is all connected to the 4th operation signal and applies end E4, wherein, the control signal connectivity port of the first gate tube of the six or three pipe unit connects the 7th control signal and applies end C07, and bit line connectivity port connects even bitlines BL4; The control signal connectivity port of the second gate tube of the six or three pipe unit connects the 8th control signal and applies end C08, and bit line connectivity port connects even bitlines BL6; The control signal connectivity port of the 3rd gate tube of the six or three pipe unit connects the 9th control signal and applies end C09, and bit line connectivity port connects even bitlines BL8.
The operation signal connectivity port of three gate tubes of the eight or three pipe unit N8 is all connected to the 4th operation signal and applies end E4, wherein, the control signal connectivity port of the first gate tube of the eight or three pipe unit connects the tenth control signal and applies end C10, and bit line connectivity port connects even bitlines BL8; The control signal connectivity port of the second gate tube of the eight or three pipe unit connects the 11 control signal and applies end C11, and bit line connectivity port connects even bitlines BL10; The control signal connectivity port of the 3rd gate tube of the eight or three pipe unit connects the 12 control signal and applies end C12, and bit line connectivity port connects even bitlines BL12.
Carry out reading at every turn, the operation such as write time, apply end at first to fourth operation signal and apply first to fourth operation signal respectively, first to the 6th control signal control signal applied in end applies end and applies gate control signal, 7th to the 12 control signal control signal applied in end applies end and applies gate control signal, make to apply with the control signal applying gating signal to hold four gate tubes be connected to be opened simultaneously, realize 4 continuous bit lines quilts gating simultaneously.Such as, in Fig. 2, gate control signal 1 is applied to the 5th control signal and applies end C05, the bit line that gating is connected with second gate tube of the one or three pipe unit N1 and second gate tube of the two or three pipe unit N2, is applied to odd bit lines BL3, bit line BL5 respectively by the first operation signal, the second operation signal; Gate control signal 2 is applied to the 8th control signal and applies end C08, the bit line that gating is connected with second gate tube of the five or three pipe unit N5 and second gate tube of the six or three pipe unit N6, is applied to even bitlines BL4, bit line BL6 respectively by the 3rd operation signal, the 4th operation signal.By selecting four operation signals, realize the operation of the storage unit between pairs of bit line BL3 and bit line BL4 two bit lines.When circuit structure of the present invention is to a memory cell operation, only uses 2 gating signals to realize the gating of 4 continuous bit lines, can gating efficiency be improved.
Above-mentioned gate control signal 1 and gate control signal 2 realize the operation of the storage unit between pairs of bit line BL3 and bit line BL4 two bit lines, and the operation of the storage unit between pairs of bit line BL4 and bit line BL5 bit line is described below.
Be applied to the 3rd control signal by gate control signal 3 and apply end C03, the bit line that gating is connected with first gate tube of the three or three pipe unit N3 and first gate tube of the four or three pipe unit N4, is applied to odd bit lines BL5, bit line BL7 respectively by the first operation signal, the second operation signal; Be applied to the 8th control signal by gate control signal 4 and apply end C08, the bit line that gating is connected with second gate tube of the five or three pipe unit N5 and second gate tube of the six or three pipe unit N6, is applied to even bitlines BL4, bit line BL6 respectively by the 3rd operation signal, the 4th operation signal.By selecting four operation signals, realize the operation of the storage unit between pairs of bit line BL4 and bit line BL5 two bit lines.The like, until bit line BL9, bit line BL10, bit line BL11, bit line BL12 are strobed.Therefore present invention achieves the function of gating arbitrary continuation 4 bit lines in order from bit line BL1 to bit line BL12.
Lower mask body introduction adopts the bit line strobe device of the present embodiment to carry out the method for read operation, see Fig. 3, bit line strobe device adopts the structure of Fig. 2, apply end E1, E2, E3 at four operation signals to be connected low level generation device respectively with E4, to read signal generator and two high level generators, bit line BLa, bit line BLa+1, bit line BLa+2 and bit line BLa+3 are connected to the continuous bit line connectivity port of bit line strobe device.When the information stored in storage unit Cella+1 is read, the wordline Za of memory cell array opens, all be unlocked with the storage unit of a line with storage unit Cella+1, 2 control signals that the bit line strobe control signal that code translator produces is applied to bit line strobe device apply end, in 2 control signals applying ends of applying signal, one applies in end in the first to the 6th control signal, another applies in end in the 7th to the 12 control signal, gating and this two control signals to apply to hold in four three pipe units be connected respectively with bit line BLa, bit line BLa+1, the gate tube that bit line BLa+2 is connected with bit line BLa+3, the low level signal that low level generator provides is applied to the BLa of bit line, the reading signal reading the generation of signal generator is applied to bit line BLa+1, the high level signal provided by two high level generators is applied to bit line BLa+2 and bit line BLa+3 respectively.Reading signal generator and high level generator provide identical level signal, read signal generator and can not only apply required level signal to bit line BLa+1, can also sense the electric current I on this bit lines.The potential difference (PD) that storage unit Cella+1 two ends bit lines exists is produced the storage information that flows through the electric current I 1, storage unit Cella+1 of storage unit Cella+1 and to be compared with reference value by electric current I 1 and judge.Bit line BLa+1, bit line BLa+2 and bit line BLa+3 apply same level signal, electric potential difference is 0, leakage current Ileak1, Ileak2 can not be produced on storage unit Cella+2, Cella+3, effectively prevent the impact that electric current I that bit line BLa+2 and bit line BLa+3 pairs of bit line BLa+1 flows through causes, namely read electric current I and be equal to I1.Therefore, adopt bit line strobe device of the present invention, simultaneously gating 4 continuous bit lines, avoid the interference of contiguous bit line in reading cells Cella+1 process, improve the degree of accuracy of reading.
Embodiment two:
See Fig. 4, for bit line strobe device of the present invention comprises the embodiment schematic diagram of two gating module, comprising:
12 gate control signal apply end C01 to C12;
First gating module, comprises eight three pipe unit N1 to N8 and four operation signals and applies end E1 to E4, and wherein, eight three pipe units, four operation signals apply to hold the connected mode applying end with 12 gate control signal identical with embodiment one;
Second gating module, comprises eight three pipe unit N9 to N16 and four operation signals and applies end E5 to E8, and wherein, eight three pipe units, four operation signals apply to hold the connected mode applying end with 12 gate control signal identical with embodiment one.
Wherein the first gating module is connected with continuous bit line BL1 to BL20 with the second gating module, first gating module, the second gating module apply the connection of holding respectively with 12 gate control signal and to comprise a gating module substantially identical, difference is, continuous bit line BL9, bit line BL10, bit line BL11 are connected with the gate tube in the first gating module and the second gating module with bit line BL12, are specially:
In three pipe unit N4 of the first gating module, the control signal connectivity port of the second gate tube connects the second control signal and applies end C02, and bit line connectivity port connects odd bit lines BL9; The control signal connectivity port of the 3rd gate tube connects the first control signal and applies end C01, and bit line connectivity port connects odd bit lines BL11;
In three pipe unit N9 of the second gating module, the control signal connectivity port of the first gate tube connects the 6th control signal and applies end C06, and bit line connectivity port connects odd bit lines BL9; The control signal connectivity port of the second gate tube connects the 5th control signal and applies end C05, and bit line connectivity port connects odd bit lines BL11;
In three pipe unit N8 of the first gating module, the control signal connectivity port of the second gate tube connects the 11 control signal and applies end C11, and bit line connectivity port connects even bitlines BL10; The control signal connectivity port of the 3rd gate tube connects the 12 control signal and applies end C12, and bit line connectivity port connects even bitlines BL12;
In three pipe unit N13 of the second gating module, the control signal connectivity port of the first gate tube connects the 7th control signal and applies end C07, and bit line connectivity port connects even bitlines BL10; The control signal connectivity port of the second gate tube connects the 8th control signal and applies end C08, and bit line connectivity port connects even bitlines BL12.
When the operation signal of the first gating module applies to hold E1 to E4 to apply operation signal respectively, by two bit line strobe signals, operation signal can be applied to arbitrary continuation four bit lines in continuous bit line BL1 to BL12, realize waiting operation to the accurate reading of a storage unit.When the operation signal of the second gating module applies to hold E5 to E8 to apply operation signal respectively, by two bit line strobe signals, operation signal can be applied to arbitrary continuation four bit lines in continuous bit line BL9 to BL20, realize waiting operation to the accurate reading of a storage unit.By two bit line strobe signals, two groups of operation signals of the first gating module or the second gating module apply end E1 to E4, E5 to E8 apply operation signal respectively time, four operation signals in every group can be applied to 4 continuous bit lines, realize the operation such as accurate readings grade of a storage unit in 19 storage unit that pairs of bit line BL1 to BL20 connects.
In the bit line strobe device of the present embodiment, two gating module share 12 gate control signal and apply end, the bit line strobe device of employing the present embodiment can adopt 8 bit lines in two bit line strobe control signal gatings, 20 continuous bit lines, and carry out the operations such as reading by applying to hold four ends (E1 to E4 or E5 to E8) in E1 to E8 to apply signal to operation signal, improve the gating efficiency of gate control signal.
The bit line strobe device of the present embodiment comprises two gating module, can also comprise more such gating module in bit line strobe device of the present invention.
Gate tube in bit line strobe device of the present invention can be MOS transistor, and the grid of MOS transistor is control signal connectivity port, and source electrode and drain electrode are respectively bit line connectivity port and operation signal connectivity port.
Corresponding with bit line strobe device provided by the invention, the present invention also provides a kind of bit line strobe method, comprising:
Two gate control signal are applied to the control signal link of multiple gate tube, wherein the first gate control signal and the second gate control signal are applied to the control signal connectivity port of multiple gate tube respectively, the bit line connectivity port applying multiple gate tubes of described first gate control signal connects many neighboring odd numbered bit line respectively, and the bit line connectivity port applying multiple gate tubes of described second gate control signal gating connects many adjacent even numbered bit lines corresponding with described many neighboring odd numbered bit line respectively.Wherein, two adjacent even numbered bit lines corresponding with described two neighboring odd numbered bit line represent that, in 4 continuous bit lines, Article 1 and Article 3 bit line are neighboring odd numbered bit line, and Article 2 and Article 4 bit line are adjacent even numbered bit lines.
Four operation signals are that the bit line be connected with the described gate tube be strobed applies operation signal respectively by the gate tube be strobed, wherein, a described operation signal is applied to the operation signal connectivity port of multiple gate tube, applies different control signals in the gate control signal connectivity port of the multiple gate tubes applying same operation signal.
In bit line strobe method of the present invention, a multiple gate tube of control signal gating, described multiple gate tube connects different bit lines, add the quantity that each and every one control signal every controls bit line, adopt two gate control signal can arbitrary continuation four bit lines in the continuous multidigit bit line of gating, improve the gating efficiency of control signal.Simultaneously, an operation signal is connected with multiple bit lines by multiple gate tube, and in gating process, the gate tube that operation signal is only opened by being strobed control signal is applied to bit line, in a gating process, the gate tube of a control signal gating transmits different main bit line signals.Method of the present invention makes operation signal multiplexing, simplifies gating method.
The above is only preferred embodiment of the present invention, not does any pro forma restriction to the present invention.Any those of ordinary skill in the art, do not departing under technical solution of the present invention ambit, the Method and Technology content of above-mentioned announcement all can be utilized to make many possible variations and modification to technical solution of the present invention, or be revised as the Equivalent embodiments of equivalent variations.Therefore, every content not departing from technical solution of the present invention, according to technical spirit of the present invention to any simple modification made for any of the above embodiments, equivalent variations and ++ modify, all still belong to technical solution of the present invention protection scope in.
Claims (11)
1. a bit line strobe device, is characterized in that, comprises 12 gate control signal and applies end and multiple gating module, wherein,
Described gating module comprises eight three pipe units and four operation signals apply end, wherein:
Each described three pipe units comprise three gate tubes, and each gate tube comprises three connectivity ports: control signal connectivity port, bit line connectivity port and operation signal connectivity port; The operation signal connectivity port of three gate tubes of three pipe units in described eight three pipe units is connected to same described operation signal and applies end, the gating signal of each gate tube applies end and connects different gate control signal applying ends, and the bit line connectivity port of each gate tube connects not corresponding lines; The bit line connectivity port of described three gate tubes connects adjacent odd bit lines or adjacent even bitlines;
A described operation signal applies described three pipe units of end connection two, and the control signal connectivity port connecting six gate tubes of same described operation signal applying end connects described 12 gate control signal six gate control signal applied in end respectively and applies to hold;
A described gate control signal applies end connection two gate tubes, the operation signal connectivity port connecting two gate tubes of same gate control signal applying end connects different described operation signals respectively and applies end, and the bit line connectivity port connecting two gate tubes that the applying of same gate control signal is held connects adjacent odd bit lines or adjacent even bitlines;
Described 12 gate control signal apply end and are connected with the gate tube of multiple gating module, and the gate tube of described multiple gating module connects many continuous bit lines, wherein,
Four continuous bit lines are had to be connected with the gate tube in two described gating module in described many continuous bit lines.
2. bit line strobe device according to claim 1, is characterized in that, four operation signals of described gating module apply the first operation signal in end and apply to hold the one or three pipe unit in described eight three pipe units of connection and the three or three pipe unit.
3. bit line strobe device according to claim 2, is characterized in that,
In described one or three pipe unit, the control signal connectivity port of the first gate tube connects the 6th control signal and applies end, and bit line connectivity port connects the first odd bit lines; The control signal connectivity port of the second gate tube connects the 5th control signal and applies end, and bit line connectivity port connects the second odd bit lines; The control signal connectivity port of the 3rd gate tube connects the 4th control signal and applies end, and bit line connectivity port connects the 3rd odd bit lines;
In described three or three pipe unit, the control signal connectivity port of the first gate tube connects the 3rd control signal and applies end, and bit line connectivity port connects the 3rd odd bit lines; The control signal connectivity port of the second gate tube connects the second control signal and applies end, and bit line connectivity port connects the 4th odd bit lines; The control signal connectivity port of the 3rd gate tube connects the first control signal and applies end, and bit line connectivity port connects the 5th odd bit lines.
4. bit line strobe device according to claim 1, is characterized in that, four operation signals of described gating module apply the second operation signal in end and apply to hold the two or three pipe unit in described eight three pipe units of connection and the four or three pipe unit.
5. bit line strobe device according to claim 4, is characterized in that,
In described two or three pipe unit, the control signal connectivity port of the first gate tube connects the 6th control signal and applies end, and bit line connectivity port connects the second odd bit lines; The control signal connectivity port of the second gate tube connects the 5th control signal and applies end, and bit line connectivity port connects the 3rd odd bit lines; The control signal connectivity port of the 3rd gate tube connects the 4th control signal and applies end, and bit line connectivity port connects the 4th odd bit lines;
In described four or three pipe unit, the control signal connectivity port of the first gate tube connects the 3rd control signal and applies end, and bit line connectivity port connects the 4th odd bit lines; The control signal connectivity port of the second gate tube connects the second control signal and applies end, and bit line connectivity port connects the 5th odd bit lines; The control signal connectivity port of the 3rd gate tube connects the first control signal and applies end, and bit line connectivity port connects the 6th odd bit lines.
6. bit line strobe device according to claim 1, is characterized in that, four operation signals of described gating module apply the 3rd operation signal in end and apply to hold the five or three pipe unit in described eight three pipe units of connection and the seven or three pipe unit.
7. bit line strobe device according to claim 6, is characterized in that,
In described five or three pipe unit, the control signal connectivity port of the first gate tube connects the 7th control signal and applies end, and bit line connectivity port connects the first even bitlines; The control signal connectivity port of the second gate tube connects the 8th control signal and applies end, and bit line connectivity port connects the second even bitlines; The control signal connectivity port of the 3rd gate tube connects the 9th control signal and applies end, and bit line connectivity port connects the 3rd even bitlines;
In described seven or three pipe unit, the control signal connectivity port of the first gate tube connects the tenth control signal and applies end, and bit line connectivity port connects the 3rd even bitlines; The control signal connectivity port of the second gate tube connects the 11 control signal and applies end, and bit line connectivity port connects the 4th even bitlines; The control signal connectivity port of the 3rd gate tube connects the 12 control signal and applies end, and bit line connectivity port connects the 5th even bitlines.
8. bit line strobe device according to claim 1, is characterized in that, four operation signals of described gating module apply the 4th operation signal in end and apply to hold the six or three pipe unit in described eight three pipe units of connection and the eight or three pipe unit.
9. bit line strobe device according to claim 8, is characterized in that,
In described six or three pipe unit, the control signal connectivity port of the first gate tube connects the 7th control signal and applies end, and bit line connectivity port connects the second even bitlines; The control signal connectivity port of the second gate tube connects the 8th control signal and applies end, and bit line connectivity port connects the 3rd even bitlines; The control signal connectivity port of the 3rd gate tube connects the 9th control signal and applies end, and bit line connectivity port connects the 4th even bitlines;
In described eight or three pipe unit, the control signal connectivity port of the first gate tube connects the tenth control signal and applies end, and bit line connectivity port connects the 4th even bitlines; The control signal connectivity port of the second gate tube connects the 11 control signal and applies end, and bit line connectivity port connects the 5th even bitlines; The control signal connectivity port of the 3rd gate tube connects the 12 control signal and applies end, and bit line connectivity port connects the 6th even bitlines.
10. the bit line strobe device according to any one of claim 1-9, it is characterized in that, described gate tube is MOS transistor, and the grid of described MOS transistor is control signal connectivity port, and source electrode and drain electrode are respectively bit line connectivity port and operation signal connectivity port.
11. 1 kinds of bit line strobe methods, is characterized in that, are applied to as the bit line strobe device in any one of claim 1-10, and described bit line strobe method comprises:
Two gate control signal are applied to the control signal link of multiple gate tube, wherein the first gate control signal and the second gate control signal are applied to the control signal connectivity port of multiple gate tube respectively, the bit line connectivity port applying multiple gate tubes of described first gate control signal connects many neighboring odd numbered bit line respectively, and the bit line connectivity port applying multiple gate tubes of described second gate control signal gating connects many adjacent even numbered bit lines corresponding with described many neighboring odd numbered bit line respectively;
Four operation signals are that the bit line be connected with the described gate tube be strobed applies operation signal respectively by the gate tube be strobed, wherein, a described operation signal is applied to the operation signal connectivity port of multiple gate tube, applies different control signals in the gate control signal connectivity port of the multiple gate tubes applying same operation signal.
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| CN101677016A (en) * | 2008-09-17 | 2010-03-24 | 中国科学院微电子研究所 | Dual-port static random access memory unit |
| CN102013271A (en) * | 2009-09-08 | 2011-04-13 | 中国科学院上海微系统与信息技术研究所 | Fast reading device and method of phase change memory |
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| US5946237A (en) * | 1996-03-29 | 1999-08-31 | Sgs-Thomson Microelectronics S.R.L. | Nonvolatile memory device capable of reading data with a reduced number of word lines |
| CN101677016A (en) * | 2008-09-17 | 2010-03-24 | 中国科学院微电子研究所 | Dual-port static random access memory unit |
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