CN209087412U - Temperature controls output driving circuit and memory - Google Patents
Temperature controls output driving circuit and memory Download PDFInfo
- Publication number
- CN209087412U CN209087412U CN201821771848.4U CN201821771848U CN209087412U CN 209087412 U CN209087412 U CN 209087412U CN 201821771848 U CN201821771848 U CN 201821771848U CN 209087412 U CN209087412 U CN 209087412U
- Authority
- CN
- China
- Prior art keywords
- pull
- resistance
- adjustment
- drive module
- transistor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The utility model provides a kind of temperature control output driving circuit and memory, the resistance adjustment module for adjusting resistance is configured in driving circuit, current drive module resistance value is calculated by the temperature data of temperature sensor senses, the resistance for adjusting resistance adjustment module by Logic control module again, to adjust the resistance of entire output driving by the resistance sizes for being incorporated to drive module.The utility model can be measured in real time and adjust, and reduce output driving resistance variation with temperature, make output driving resistance all-the-time stable in preset value, it is ensured that the performance of circuit.
Description
Technical field
The utility model relates to integrated circuit fields, control output driving circuit in particular to a kind of temperature, and
Memory comprising the circuit.
Background technique
The output driving circuit of DDR4 chip is usually configured by multiple output driving units.As shown in Figure 1, for
The output driving circuit of DDR4 chip has seven pull-up and drop-down driving unit, is driven by pull-up and pulldown signal to seven
Moving cell selects, to be configured to the output driving resistance that resistance value reaches needs.
In the course of work of chip, when temperature changes, due to the characteristic that resistance varies with temperature, driving is single
Resistance in member can generate variation with temperature, lead to the resistance value and 240ohms Incomplete matching of driving unit, so finally
The resistance of output driving can have certain error with desired value.
Therefore, it is necessary to which output driving resistance is adjusted, the resistance value of output driving resistance is controlled in certain model
In enclosing, weakens or eliminate resistance value variation with temperature, make output driving resistance stabilization.
Utility model content
The purpose of this utility model is to provide a kind of temperature control output driving circuit and memories, solve existing driving
The resistance value of resistance is easy the problem of varying with temperature and changing.
One aspect according to the present utility model provides a kind of temperature control output driving circuit, comprising:
Drive module, including several resistive elements, the resistive element are connect with power end and output end；The driving mould
Block receives output drive signal；
Resistance adjusts module, including several adjustment resistive elements, the adjustment resistive element and the power end and output
End connection, it is also in parallel with the resistive element of the drive module；The resistance adjustment module is connected in response to resistance adjustment signal
Or shutdown, to adjust the resistance value of the driving circuit；
Temperature sensor, for incuding the temperature of the output driving circuit；
Logic control module connects the temperature sensor, for the temperature data according to the temperature sensor, to institute
State resistance adjustment module output resistance adjustment signal.
In a kind of illustrative embodiments of the utility model, the drive module includes that main drive module and auxiliary are driven
Dynamic model block；
The main drive module includes pulling up main drive module and pulling down main drive module, described to pull up main drive module packet
Several pull-up main resistor elements are included, pulling down main drive module includes several drop-down main resistor elements；
The auxiliary drive module includes pull-up auxiliary drive module and drop-down auxiliary drive module, the pulling drive mould
Several pull-up auxiliary resistance elements of block, pull-up auxiliary drive module includes several drop-down auxiliary resistance elements；
Wherein, the pull-up main resistor element and pull-up auxiliary resistance element in parallel, the drop-down main resistor element is under
Draw auxiliary resistance element in parallel.
In a kind of illustrative embodiments of the utility model, the pull-up auxiliary drive module further includes N number of parallel connection
The switch element that pulls up transistor, the control terminal of N number of switch element that pulls up transistor is for receiving corresponding N number of pull-up drive
Dynamic signal, the first end of N number of switch element that pulls up transistor are connect with the power end jointly, second end jointly with it is described
Pull up the connection of auxiliary resistance element；
The drop-down auxiliary drive module further includes M pull-down transistor switch element in parallel, the M lower crystal pullings
The control terminal of pipe switch element is for receiving corresponding M drop-down driving signal, and the of the M pull-down transistor switch element
One end is connect with the ground terminal jointly, and second end is connect with the drop-down auxiliary resistance element jointly；
Wherein, N, M are positive integer.
In a kind of illustrative embodiments of the utility model, the resistance adjustment module includes pull-up resistor adjustment mould
Block and pull down resistor adjust module, and the adjustment resistive element is transistor switching element；The Logic control module includes P
Pull up signal port and Q pulldown signal port, P and Q are positive integer；
The pull-up resistor adjustment module includes the P pull-up adjustment crystal in parallel with the switch element that pulls up transistor
Pipe switch element, the control terminal of the P pull-up adjustment transistor switching element and P pull up signal port correspond
Connection, the first end that the P pull-up adjusts transistor switching element are connect with the power end jointly, and second end is jointly and institute
State pull-up auxiliary resistance element connection；
The pull down resistor adjustment module includes the Q drop-down adjustment crystal in parallel with the pull-down transistor switch element
Pipe switch element, the control terminal of the Q pull-up adjustment transistor switching element and Q pulldown signal port correspond
Connection, the first end that the Q drop-down adjusts transistor switching element are connect with the ground terminal jointly, and second end is jointly and institute
State drop-down auxiliary resistance element connection.
In a kind of illustrative embodiments of the utility model, switch element and the pull-up adjustment crystalline substance of pulling up transistor
Body pipe switch element is PMOS transistor, and the pull-down transistor switch element and drop-down adjustment transistor switching element are NMOS
Transistor.
In a kind of illustrative embodiments of the utility model, the switch element that pulls up transistor, pull-down transistor
The resistance value of switch element, pull-up adjustment transistor switching element and drop-down adjustment transistor switching element is equal or unequal.
Other side according to the present utility model provides a kind of memory, including temperature control described in any of the above item
Output driving circuit processed.
The temperature of the utility model controls output driving circuit, is configured with the resistance adjustment module for adjusting resistance, leads to
The temperature data of excess temperature sensor sensing calculates current drive module resistance value, then adjusts resistance by Logic control module
The resistance for adjusting module, to adjust the resistance of entire output driving by the resistance sizes for being incorporated to drive module.On the one hand,
Weaken or eliminate output driving resistance vary with temperature caused by variation, make its output driving resistance stabilization default
Value, it is ensured that chip performance is stablized；On the other hand, this method, which only needs to obtain circuit temperature, can be carried out real-time detection and tune
It is whole, resistance can be adjusted to desired value in a big way, adjustment mode is simple and accurate.
It should be understood that above general description and following detailed description be only it is exemplary and explanatory, not
The utility model can be limited.
Detailed description of the invention
The drawings herein are incorporated into the specification and forms part of this specification, and shows and meets the utility model
Embodiment, and be used to explain the principles of the present invention together with specification.It should be evident that the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the output driving circuit figure of DDR4 chip；
Fig. 2 is pulling drive resistance variations situation；
Fig. 3 is drop-down driving resistance variations situation.
Fig. 4 is that the utility model temperature controls output driving circuit circuit diagram；
In figure, 1, the main drive module of pull-up；2, main drive module is pulled down；3, auxiliary drive module is pulled up；4, drop-down auxiliary
Drive module；5, pull-up resistor adjusts module；6, pull down resistor adjusts module；7, temperature sensor；8, Logic control module.
Specific embodiment
Example embodiment is described more fully with reference to the drawings.However, example embodiment can be with a variety of shapes
Formula is implemented, and is not understood as limited to embodiment set forth herein；On the contrary, thesing embodiments are provided so that this is practical new
Type will be full and complete, and the design of example embodiment is comprehensively communicated to those skilled in the art.It is identical in figure
Appended drawing reference indicates same or similar structure, thus the detailed description that will omit them.
Term "one", " one ", "the", " described " and "at least one" be to indicate that there are one or more elements/groups
At part/etc.；Term " comprising " and " having " is to indicate the open meaning being included and refer in addition to listing
Element/component part/also may be present except waiting other element/component part/etc..
Fig. 1 is the output driving circuit of common DDR4 chip, is made of, passes through seven pull-up and drop-down driving unit
It pulls up with pulldown signal and seven driving units is selected, to be configured to the output driving resistance that resistance value reaches needs.Wherein
PupM indicates pulling drive, and pdnM indicates drop-down driving.It is usually fixed due to the resistance of the circuit, chip temperature changes
When, due to the characteristic that resistance varies with temperature, the resistance in drive module can generate variation with temperature, by Fig. 2,3
As can be seen that current output driving circuit is under condition of different temperatures, resistance value and expected 240ohms differ greatly, and deposit
In large range of fluctuation (about 150~400ohms), so the resistance of last output driving can have certain mistake with desired value
Difference.
Embodiments, provides a kind of temperature to control output driving circuit for the utility model, for by the electricity of above-mentioned deviation
Resistance value is adjusted to desired value.The circuit is widely used in chip interface, such as DDR2/DDR3/DDR4/LPDDR2/LPDDR3/,
This will not enumerate.
The temperature of the utility model embodiment controls output driving circuit, comprising: drive module, resistance adjustment module,
Temperature sensor and Logic control module.Wherein, drive module includes several resistive elements, resistive element and power end and output
End connection, drive module receive output drive signal；It includes several adjustment resistive elements that resistance, which adjusts module, adjusts resistive element
It is connect with power end and output end, it is also in parallel with the resistive element of drive module；Resistance adjusts module and responds resistance adjustment signal
And on or off, to adjust the resistance value of driving circuit；Temperature sensor is used to incude the temperature of drive module；Logic control
Module connects temperature sensor, for the temperature data according to temperature sensor, to resistance adjustment module output resistance adjustment letter
Number.
When the temperature varies, temperature sensor exports real-time change, this variation is adjusted by a control logic
The resistance of economize on electricity resistance adjustment module, so that the resistance of entire output driving is adjusted by the resistance sizes for being incorporated to drive module,
The internal resistance of final output driving can stablize in required resistance sizes without being influenced by temperature, and the resistance value thus configured can also reach
The output driving resistance needed.
The temperature control output driving circuit of the utility model embodiment is described in detail below:
Drive module is divided into pulling drive and drop-down driving, and pulling drive and drop-down driving all include several resistive elements,
Resistive element is connect with power end, ground terminal and output end respectively.Pull-up resistor and pull down resistor are coordinative role, pull-up resistor
Function be mainly be intensified charging current capacity；Pull down resistor is for enhanced discharge current capacity.
The resistance adjustment module of the utility model includes several adjustment resistive elements, and adjustment resistive element is substantially an electricity
Resistance, adjustment resistive element are in parallel with the resistive element of drive module.Control and be connected to of the adjustment resistive element of driving circuit
Number, thus it is possible to vary the all-in resistance of entire driving circuit.Adjusting resistive element can be crystal switch element, can respond resistance tune
Entire signal and on or off；It may be fixed resistance, the switch element by the way that series connection with it is connected accesses circuit.
The temperature sensor 5 of the utility model can be directly installed on chip, can also be used as a part of chip.By
It is almost the same in the temperature value of pulling drive and drop-down driving, therefore temperature sensor 5 can only be arranged one, it certainly, can also
With for high-precision requirement, setting is multiple, the temperature of each module is answered for feeling of independence, and connect respectively with logic control circuit 6
It connects.The temperature sensor 5 of the utility model can use the various temperatures sensors such as common resistance thermometer, thermistor,
The utility model does not limit the type, number and mounting means of temperature sensor.
The Logic control module 6 of the utility model can carry out logical operation according to the temperature data of temperature sensor, when
When detecting that temperature value is more than preset range, Logic control module then determines the adjustment resistance member for needing to be incorporated to according to the numerical value
Part simultaneously sends control signal.It can use the circuit that digital signal logical operation and operation are realized using binary system as principle, this
Field technical staff knows, in order to realize the utility model aim should be using which kind of particular circuit configurations, and the utility model is not
It repeats herein, also without specifically limiting.
In a kind of exemplary embodiment, drive module includes main drive module and auxiliary drive module.Main drive module
Including pulling up main drive module and pulling down main drive module, pulling up main drive module includes several pull-up main resistor elements, drop-down
Main drive module includes several drop-down main resistor elements；Auxiliary drive module includes that pull-up auxiliary drive module and drop-down auxiliary are driven
Dynamic model block, several pull-up auxiliary resistance elements of pulling drive module, pull-up auxiliary drive module includes several drop-down auxiliary resistances
Element；Wherein, pull-up main resistor element and pull-up auxiliary resistance element in parallel, drop-down main resistor element and drop-down auxiliary resistance member
Part is in parallel.Main drive module can be supplemented by auxiliary drive module, to improve output driving ability.
For example, as shown in figure 4, pulling up main drive module 1 includes a pull-up main resistor element Rop, main resistor is pulled up
One PMOS tube of the one end element Rop series connection, the other end are connected to controllable input/output end port Pad, and the port is as output end.
The grid of the PMOS tube receives control signal PupMain, and drain electrode is connected to power end, and source electrode connects resistive element Rop.Accordingly
, pulling down main drive module 2 includes a drop-down main resistor element Ron, one NMOS tube of the one end main resistor element Ron series connection is pulled down,
The other end is connected to controllable input/output end port Pad, and the port is as output end.The grid of the NMOS tube receives control letter
Number PdnMain, drain electrode are connected to ground terminal, and source electrode connects resistive element Ron.
Pulling up auxiliary drive module 3 includes pull-up auxiliary resistance element a R1, R1 and Rop in parallel, pulls down auxiliary drive mould
Block 4 includes drop-down auxiliary resistance element a R2, R2 and Ron in parallel.R1 and R2 passes through switch element and controls its access.
In the present example embodiment, switch element uses transistor switching element.Specifically, pull-up auxiliary drive mould
Block 3 further includes the switch element that pulls up transistor of N number of parallel connection, and the control terminal of N number of switch element that pulls up transistor is for reception pair
The N number of pulling drive signal answered, the first end of N number of switch element that pulls up transistor are connect with power end jointly, and second end is common
It is connect with pull-up auxiliary resistance element.Drop-down auxiliary drive module 4 further includes M pull-down transistor switch element in parallel, and M is a
The control terminal of pull-down transistor switch element is for receiving corresponding M drop-down driving signal, M pull-down transistor switch element
First end connect jointly with ground terminal, second end jointly with drop-down auxiliary resistance element connect；Wherein, N, M are positive integer.
It can be source electrode, second end can be drain electrode that the control terminal of each transistor switching element, which can be grid, first end,；
Alternatively, it can be drain electrode, second end can be source electrode that the control terminal of each transistor switching element, which can be grid, first end,.Example
Such as, when transistor switching element is N-type transistor, the first end of switch element is drain electrode, and the second end of switch element is source
Pole, the control terminal of switch element are grid.For another example when transistor switching element is P-type transistor, the first of switch element
End is source electrode, and the second end of switch element is drain electrode, and the control terminal of switch element is grid.
For example, as shown in figure 4, in this example embodiment, pull-up auxiliary drive module 3 includes five in parallel
PMOS tube, the grid of five PMOS tube receive respectively corresponding control signal Zqpup [0], Zqpup [1], Zqpup [2],
Zqpup [3], Zqpup [4], Zqpup [4:0] indicate five PMOS tube in parallel, are controlled by corresponding control signal corresponding
The on or off of PMOS tube.The drain electrode of five PMOS tube connects power end jointly, and source electrode connects pull-up auxiliary resistance member jointly
Part R1.
Corresponding, drop-down auxiliary drive module 4 includes five NMOS tubes in parallel, and the grid of five NMOS tubes connects respectively
Receive corresponding control signal Zqpup [0], Zqpdn [1], Zqpdn [2], Zqpdn [3], Zqpdn [4], Zqpdn [4:0] table
Show five NMOS tubes in parallel, the on or off of corresponding NMOS tube is controlled by corresponding control signal.This five NMOS tubes
Source electrode be grounded jointly, the other end be also commonly connected to drop-down auxiliary resistance element R2.
By that form driving resistance unit, can need several metal-oxide-semiconductors and resistance series connection to combine according to real work and match
It is set to different output driving resistances, in this way, can guarantee that output driving resistance sizes require and the resistance value linearity is wanted
Under the premise of asking, substantially reduce series resistance quantity, to reduce the occupied chip area of output driving resistance, saves core
Piece cost.
In this example embodiment, pull-up auxiliary drive module 3 and the PMOS tube and NMOS for pulling down auxiliary drive module 4
The number of pipe is 5, i.e., N, M are 5, and those skilled in the art could be aware that, according to resistance need initial designs, N,
M can also take other values, and N, M can be equal, can also be unequal.Pull up main resistor element, pull-up auxiliary resistance element, drop-down
Main resistor element and drop-down auxiliary resistance element include but is not limited to Rop, R1, Ron and R2, and the number of resistance can according to need
It changes.Resistance number in pulling drive and drop-down driving may be the same or different, the resistance value size of each resistance
Can be identical or different, it is set as needed, such as it can be set to Ron=Rop=200, R1=R2=50.
In this example embodiment, resistance adjustment module includes pull-up resistor adjustment module 5 and pull down resistor adjustment mould
Block 6, Logic control module 8 connect temperature sensor 7, and Logic control module 8 includes P pull up signal port and Q drop-down letter
Number port, P and Q are positive integer.
Adjustment resistive element also uses transistor switching element, i.e. pull-up resistor adjustment module 5 includes P and upper crystal pulling
The pull-up of pipe switch element parallel connection adjusts transistor switching element, and the P control terminal for pulling up adjustment transistor switching element and P are a
Pull up signal port connects one to one, and the first end of P pull-up adjustment transistor switching element is connect with power end, second end
It is connect with pull-up auxiliary resistance element；It includes the Q drop-downs in parallel with pull-down transistor switch element that pull down resistor, which adjusts module 6,
Transistor switching element is adjusted, the control terminal of Q pull-up adjustment transistor switching element is corresponded with Q pulldown signal port
The first end of connection, each drop-down adjustment transistor switching element is connect with ground terminal, second end and drop-down auxiliary resistance element
Connection.The on or off that adjustment transistor switching element is pulled up by control, changes and is connected to the resistance of pullup drive circuit,
To realize the adjustment to pulling drive resistance value.The on or off of adjustment transistor switching element is pulled down by control, is changed simultaneously
It is connected to the resistance of drop-down driving circuit, to realize the adjustment to drop-down driving resistance value.
The pull-up adjustment transistor switching element of present embodiment and the set-up mode of drop-down adjustment transistor switching element
Transistor switching element in pulling drive module and drop-down drive module similarly, need to only guarantee the transistor of resistance adjustment module
Switch element type need to be matched with the transistor switching element of drive module, and port is mutually matched.
For example, in this illustrative embodiments, P=Q=3, Logic control module 8 include 3 pull up signal ends
Mouth and 3 pulldown signal ports.
It includes three PMOS tube in parallel that pull-up resistor, which adjusts module 5, and the grid of three PMOS tube receives respectively right respectively
Control signal Tpup [0], Tpup [1], the Tpup [2] answered, Tpup [2:0] are used to indicate three PMOS tube in parallel, these three
PMOS tube is in parallel with pull-up five PMOS tube Zqpup [4:0] of auxiliary drive module 3, i.e., one end of this eight PMOS tube is total
With connection power supply, the other end connects pull-up auxiliary resistance element R1 jointly.The grid of Tpup [2:0] three PMOS tube respectively with patrol
Three pull up signal ports for collecting control module 8 connect one to one, and pass through respective port and send corresponding control signal control
The on or off of corresponding PMOS tube, thus changes the resistance value of pull-up resistor adjustment module 5 itself, and then changes pulling drive
Whole resistance value.
Corresponding, drop-down auxiliary resistance adjustment module 4 includes that the grid of three NMOS tubes in parallel receives respectively respectively
Corresponding control signal Tpdn [0], Tpdn [1], Tpdn [2], Tpdn [2:0] are used to indicate three NMOS tubes in parallel, this three
A NMOS tube is in parallel with drop-down five NMOS tube Zqpdn [4:0] of drive module, and one end is grounded jointly, and the other end is common
Connection drop-down auxiliary resistance element R2.The grid of Tpdn [2:0] three NMOS tubes is pulled down with three of Logic control module 8 respectively
Signal port connects one to one, and sends conducting or the pass that corresponding control signal controls corresponding NMOS tube by respective port
It is disconnected, thus change the resistance value of pull down resistor adjustment module 6 itself, and then change the whole resistance value of drop-down driving.
Logic control module 8 calculates current pulling drive (pull-up according to the real time temperature data that temperature sensor 7 incudes
It is main driving and pull-up auxiliary drive) and drop-down driving (drop-down it is main driving and pull down auxiliary drive) resistance value, by its respectively with
Predetermined value (such as 240ohms) compares, and the adjusted value of calculating pulling drive and each self-resistance of drop-down driving determines what needs were incorporated to
PMOS tube and NMOS tube, and upward pull-up resistor adjustment module 5 and pull down resistor adjust 6 output resistance adjustment signal of module respectively.
Six metal-oxide-semiconductors receive corresponding pullup or pulldown signal, control respective conducting and shutdown independently of each other, to change driving
The resistance value of circuit entirety makes it maintain predetermined value (240ohms).
In this example embodiment, pull-up resistor adjusts the PMOS tube and NMOS of module 5 and pull down resistor adjustment module 6
The number of pipe is 3, i.e., P, Q are 3, and those skilled in the art could be aware that, according to resistance need initial designs, P,
Q can also take other values, and P, Q can be equal, can also be unequal.
Correspondingly, the pull up signal port of Logic control module 8 and the number of pulldown signal port are also with pull-up resistor
It adjusts in module 5 and pull down resistor adjustment module 6 depending on the number of PMOS tube and NMOS tube, as long as guaranteeing port energy and metal-oxide-semiconductor
It connects one to one.Therefore, correspond to pull up signal port and pulldown signal port, P, Q can also take other values, P, Q
Can be equal, it can also be unequal.
In addition, either drive module or resistance adjust module, each transistor switch member in this example embodiment
The resistance value of part can be equal, can also be unequal, combination can be needed to be configured to different output drivings according to real work in this way
Resistance, to adapt to more adjust situation.
In this example embodiment, the switch element that pulls up transistor, pull-down transistor switch element, pull-up adjustment crystal
Pipe switch element and drop-down adjustment transistor switching element have been all made of metal-oxide-semiconductor, and those skilled in the art could be aware that, open
Closing element can also be other switch elements, such as triode.
The resistance of the driving circuit of the utility model can constantly repeat temperature detection and tune with the progress of work
Whole, setting detection and adjustment interval, are persistently adjusted the resistance of driving circuit with guarantee, make its all-the-time stable according to demand
In preset value.
The temperature of embodiment of above controls output driving circuit, is configured with the resistance adjustment module for adjusting resistance,
Current drive module resistance value is calculated by the temperature data of temperature sensor senses, then electricity is adjusted by Logic control module
The resistance of resistance adjustment module, to adjust the resistance of entire output driving by the resistance sizes for being incorporated to drive module.One side
Face, weaken or eliminate output driving resistance with temperature, technique, pressure variation caused by variation, make its output drive
Resistance stabilization is moved in preset value, it is ensured that chip performance is stablized；On the other hand, this method only need to obtain circuit temperature can be into
Row real-time detection and adjustment can in a big way adjust resistance to desired value, and adjustment mode is simple and accurate.
The utility model embodiment also provides a kind of memory, controls output including temperature described in any of the above item and drives
Dynamic circuit.The utility model meaning memory include but is not limited to dynamic random access memory, Double Data Rate synchronous dynamic with
Machine memory etc., all memories comprising output driving circuit can control output driving using the temperature of the utility model
Circuit stablizes chip performance to ensure its driving capability.
Those skilled in the art are considering specification and after practicing utility model disclosed herein, will readily occur to practical
Novel other embodiments.This application is intended to cover any variations, uses, or adaptations of the utility model, these
Variations, uses, or adaptations follow the general principle of the utility model and including undocumented skills of the utility model
Common knowledge or conventional techniques in art field.The description and examples are only to be considered as illustrative, the utility model
True scope and spirit are pointed out by the attached claims.
Claims (7)
1. a kind of temperature controls output driving circuit characterized by comprising
Drive module, including several resistive elements, the resistive element are connect with power end and output end；The drive module connects
Receive output drive signal；
Resistance adjusts module, including several adjustment resistive elements, and the adjustment resistive element and the power end and output end connect
It connects, it is also in parallel with the resistive element of the drive module；The resistance adjustment module is connected or closes in response to resistance adjustment signal
It is disconnected, to adjust the resistance value of the driving circuit；
Temperature sensor, for incuding the temperature of the output driving circuit；
Logic control module connects the temperature sensor, for the temperature data according to the temperature sensor, to the electricity
Resistance adjustment module output resistance adjustment signal.
2. temperature according to claim 1 controls output driving circuit, which is characterized in that the drive module includes main drive
Dynamic model block and auxiliary drive module；
The main drive module includes pulling up main drive module and pulling down main drive module, if the main drive module of pull-up includes
Dry pull-up main resistor element, pulling down main drive module includes several drop-down main resistor elements；
The auxiliary drive module includes pull-up auxiliary drive module and drop-down auxiliary drive module, the pulling drive module packet
Several pull-up auxiliary resistance elements are included, pull-up auxiliary drive module includes several drop-down auxiliary resistance elements；
Wherein, the pull-up main resistor element and pull-up auxiliary resistance element in parallel, the drop-down main resistor element and drop-down are auxiliary
Help resistive element in parallel.
3. temperature according to claim 2 controls output driving circuit, which is characterized in that
The pull-up auxiliary drive module further includes the switch element that pulls up transistor of N number of parallel connection, described N number of to pull up transistor out
The control terminal of element is closed for receiving corresponding N number of pulling drive signal, the first end of N number of switch element that pulls up transistor
It is connect jointly with the power end, second end is connect with the pull-up auxiliary resistance element jointly；
The drop-down auxiliary drive module further includes M pull-down transistor switch element in parallel, and the M pull-down transistor is opened
The control terminal of element is closed for receiving corresponding M drop-down driving signal, the first end of the M pull-down transistor switch element
It is connect jointly with ground terminal, second end is connect with the drop-down auxiliary resistance element jointly；
Wherein, N, M are positive integer.
4. temperature according to claim 3 controls output driving circuit, which is characterized in that the resistance adjusts module and includes
Pull-up resistor adjusts module and pull down resistor adjusts module, and the adjustment resistive element is transistor switching element；The logic
Control module includes P pull up signal port and Q pulldown signal port, and P and Q are positive integer；
The pull-up resistor adjustment module includes that the P pull-up adjustment transistors in parallel with the switch element that pulls up transistor are opened
Element is closed, the control terminal of the P pull-up adjustment transistor switching element and P pull up signal port correspond and connect
Connect, it is described P pull-up adjustment transistor switching element first end connect jointly with the power end, second end jointly with it is described
Pull up the connection of auxiliary resistance element；
The pull down resistor adjustment module includes that the Q drop-down adjustment transistors in parallel with the pull-down transistor switch element are opened
Element is closed, the control terminal of the Q pull-up adjustment transistor switching element and Q pulldown signal port correspond and connect
Connect, it is described Q drop-down adjustment transistor switching element first end connect jointly with the ground terminal, second end jointly with it is described
Pull down the connection of auxiliary resistance element.
5. temperature according to claim 4 controls output driving circuit, which is characterized in that described pull up transistor switchs member
Part and pull-up adjustment transistor switching element include PMOS transistor, the pull-down transistor switch element and drop-down adjustment crystal
Pipe switch element includes NMOS transistor.
6. temperature according to claim 4 controls output driving circuit, which is characterized in that described pull up transistor switchs member
The resistance value phase of part, pull-down transistor switch element, pull-up adjustment transistor switching element and drop-down adjustment transistor switching element
Deng or it is unequal.
7. a kind of memory, including temperature of any of claims 1-6 control output driving circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821771848.4U CN209087412U (en) | 2018-10-30 | 2018-10-30 | Temperature controls output driving circuit and memory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821771848.4U CN209087412U (en) | 2018-10-30 | 2018-10-30 | Temperature controls output driving circuit and memory |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209087412U true CN209087412U (en) | 2019-07-09 |
Family
ID=67121529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821771848.4U Active CN209087412U (en) | 2018-10-30 | 2018-10-30 | Temperature controls output driving circuit and memory |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209087412U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111128288A (en) * | 2018-10-30 | 2020-05-08 | 长鑫存储技术有限公司 | Temperature control output driving circuit, driving method and memory |
-
2018
- 2018-10-30 CN CN201821771848.4U patent/CN209087412U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111128288A (en) * | 2018-10-30 | 2020-05-08 | 长鑫存储技术有限公司 | Temperature control output driving circuit, driving method and memory |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100534766C (en) | Temperature control device of heating system in hot-forming machine for plastic sheet | |
| CN106710531B (en) | Backlight control circuit and electronic device | |
| CN209087412U (en) | Temperature controls output driving circuit and memory | |
| CN104834341B (en) | A kind of output impedance adjustment circuit in interface circuit | |
| US20120187978A1 (en) | Methods and Circuits for Calibrating Multi-Modal Termination Schemes | |
| CN209803597U (en) | Control circuit for improving detection precision of NTC thermistor and electronic equipment | |
| CN107919154A (en) | A kind of input/output driver calibration circuit, method and semiconductor memory | |
| CN102682701B (en) | A kind of LED display constant-current driving control system and output current control method thereof | |
| CN201556105U (en) | Self temperature-reducing circuit for wireless terminal | |
| CN107507642A (en) | Resistance value calibration circuit and method and apply its semiconductor memory | |
| CN102355012A (en) | Numerical-control constant current driving circuit | |
| WO1998013766A1 (en) | Output buffer circuit for driving a transmission line | |
| CN201984318U (en) | Multifunctional multi-channel data acquisition on-site controller | |
| CN104407655A (en) | Resistance adjusting program control method | |
| CN208189224U (en) | The driving circuit of ZQ calibration circuit | |
| CN104935326B (en) | Output circuit in interface circuit | |
| CN202168062U (en) | On-chip terminal resistor and calibration loop | |
| CN200984816Y (en) | Temperature controlling device for heating system of plastic sheet material heat forming machine | |
| CN204576334U (en) | Output impedance Circuit tuning in a kind of interface circuit | |
| CN205404759U (en) | Communication circuit between group battery based on series battery | |
| CN201352764Y (en) | Voltage controller power source | |
| CN201440221U (en) | Two-path temperature control circuit | |
| CN101414480A (en) | Control device for phase-change memory cell and method for adding phase-change memory cell reliability | |
| CN110070905A (en) | The detection circuit and detection method of semiconductor storage unit | |
| CN209570933U (en) | Driving circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |