JPS58111185A - Semiconductor storing circuit - Google Patents

Semiconductor storing circuit

Info

Publication number
JPS58111185A
JPS58111185A JP56215661A JP21566181A JPS58111185A JP S58111185 A JPS58111185 A JP S58111185A JP 56215661 A JP56215661 A JP 56215661A JP 21566181 A JP21566181 A JP 21566181A JP S58111185 A JPS58111185 A JP S58111185A
Authority
JP
Japan
Prior art keywords
read
line
write
data
mosts
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.)
Pending
Application number
JP56215661A
Other languages
Japanese (ja)
Inventor
Toshiyoshi Iwata
岩田 利喜
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP56215661A priority Critical patent/JPS58111185A/en
Publication of JPS58111185A publication Critical patent/JPS58111185A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11CSTATIC STORES
    • G11C11/00Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor
    • G11C11/21Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements
    • G11C11/34Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using semiconductor devices
    • G11C11/40Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using semiconductor devices using transistors
    • G11C11/401Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using semiconductor devices using transistors forming cells needing refreshing or charge regeneration, i.e. dynamic cells
    • G11C11/402Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using semiconductor devices using transistors forming cells needing refreshing or charge regeneration, i.e. dynamic cells with charge regeneration individual to each memory cell, i.e. internal refresh
    • G11C11/4023Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using semiconductor devices using transistors forming cells needing refreshing or charge regeneration, i.e. dynamic cells with charge regeneration individual to each memory cell, i.e. internal refresh using field effect transistors

Abstract

PURPOSE:To improve the efficiency of utilization of read-out and write lines by forming a pair of units, each of which consists of a memory cell and a refresh circut, and using one write line as other read-out line and one read-out line as the other write line. CONSTITUTION:An RAM cell consists of reading MOSTs 1, 1', writing MOSTs 2, 2' and data storing MOSTs 3, 3. A refresh circuit is composed of MOSTs 4, 4' to precharge the rear and write lines 8, 9, MOSTs 6, 6' and 7, 7' to feed back read data to the write lines, and inverters 5, 5. Two RAMs having said configuration are formed as a pair of unis to use write line as the other read- out line and one read-out line as the other write line, improving the efficiency of utilization and the efficiency of data transfer.

Description

【発明の詳細な説明】 本発明はMO8FE前記憶回前記開回路特WC3個のM
OSFETよシなるRAMセル管もつ記憶回路onみ出
し及び書き込み回路に関するものである。
DETAILED DESCRIPTION OF THE INVENTION The present invention provides three M
The present invention relates to a storage circuit on read and write circuit having a RAM cell tube such as an OSFET.

近年、牟導体集秋回路の高集積jtに伴い!イクロプ呻
セッサ勢に多機能化及び分散錫珈管指向し。
In recent years, with the high integration of conductor integrated circuits! Iklop is aiming for multi-functional and distributed tin tubes.

lチップ内に複数個のプロセVすを含んだマルチプロセ
ッサタイプのもの中内蔵のROMとRAMの高容量化さ
れたものが製品化されている。この徴なプ■セッサにお
いて重li!になるのは複数、個のプロセtす関のデー
タ転送のバッフ丁となるRAMである。最近この橡なR
AMは面積効率を上げることやパワーを低減させること
を目的として、従来のスーティクRAMから3トランジ
Xりよりなるダイナ(ツ/RAMへ移動度9ている。こ
の種のダイナきツタRAMは、蕗1図に示す徐に、絖み
出し用のMO8FETゲートlと書き込み用のMO8F
ETゲート2とデータを記憶するMOS−FET3の3
個のMOSFETからなるRAM七と、読み出しm’t
プリチャージするMOSFET4と銃み出し九セルのデ
ータを薔き込み縁にフィードバックするインバータIM
5からなるリフレッシ=1g回路から*成されている。
Among the multiprocessor type devices that include a plurality of processors in a single chip, products with high capacity built-in ROM and RAM have been commercialized. This is a sign of pressure! The RAM serves as a buffer for data transfer between a plurality of processes. Recently this stupid R
For the purpose of increasing area efficiency and reducing power, AM has a mobility of 9 compared to conventional SUTIC RAM, which is made up of 3 transistors, and has a mobility of 9. As shown in Figure 1, the MO8FET gate 1 for start-up and the MO8F gate 1 for writing are shown.
ET gate 2 and MOS-FET 3 that stores data
RAM 7 consisting of MOSFETs and read m't
Inverter IM that feeds back the data of MOSFET 4 for precharging and the 9 protruding cells to the edge of the inlet.
Refresh consisting of 5 = 1g circuit.

この回路會第2図タイばングチャートを参照して蘭単に
説明する。読み出しを行う場合、4のMOSFETがプ
リチャージ(Pro)信号によりて4通し読み出し酵R
Lがプリチャージされ1次に説み出しくRD)信号によ
って1のMOSFETが導通し読み出し線RLKデータ
が出力される。
This circuit will be briefly explained with reference to the tying chart in FIG. When reading, MOSFET 4 is activated for 4 consecutive readings by the precharge (Pro) signal.
The MOSFET 1 is made conductive by the RD) signal which is precharged to the primary level and outputs the read line RLK data.

普た。書き込みを行う場合は、この後書き込み(WR)
信号によってMOSFET2が導通し読み出し線RLK
入力されたデータをMO8F’ET3のゲートに書き込
むことができる。リフレッシ、の場合は、軌み出し線R
LK外部よシデータを入力しなけれはRD傷信号読み出
されたRAMセル内のデータがそのtま書き込まれリフ
レッシ、される、この嫌KRAMでは、読み出しl1l
RLが使用されているときには書き込みIIWLが使用
されていない、tた。逆に壷き込み線WLが使用されて
いるときKは読み出し線RLが使用されていないという
轍に書き込み及び読み出し1ttt1−効率よく使って
いないという欠点があり九。
Spread. When writing, write after this (WR)
The signal makes MOSFET2 conductive and the readout line RLK
The input data can be written to the gate of MO8F'ET3. In the case of refresh, the gauge line R
If LK external data is not input, the data in the read RAM cell will be written and refreshed until that time.
Write IIWL is not used when RL is used. On the other hand, when the write line WL is used, K has the disadvantage that the read line RL is not used for writing and reading.

本発明は、WLみ出し及び書き込み線を効率よく使用し
た回路を提供するとと4Khデータ転送會゛効率よく行
う回路を提供することに−ある。
SUMMARY OF THE INVENTION An object of the present invention is to provide a circuit that efficiently uses WL readout and write lines, and to provide a circuit that efficiently performs 4Kh data transfer.

本発明は、統み出し用のMO8FE’l’ゲートと11
き込み用のMO8FETゲートとデータを記憶するMO
8FETゲートの3個のMOSFETからなるRAMセ
ルと、読み出しmをプリチャージするMOSFETとR
AMセルよ如耽み出したデータを書き込み線にフィード
パ豐りする2個のMO8FETゲートと1個のインバー
タよシなるり7レツシ、用回路、から#l成され、るR
AMが2個で1組になシ、かつ、一方の薔き込み線が他
方の読み出し線として使用され%tた一方の読み出し纏
が他方の書き込、み1IIK使用される橡に、読み出し
及び壷き込み線の使用効率を高め九本のである。
The present invention has a MO8FE'l' gate for leading and 11
MO8FET gate for reading and MO for storing data
A RAM cell consisting of three MOSFETs with an 8FET gate, a MOSFET for precharging read m, and R.
#l consists of two MO8FET gates and one inverter, which feed the data read out from the AM cell to the write line, and a circuit for 7 circuits.
Two AMs are used as a set, and one of the wires is used as a readout wire of the other, and one readout wire is used as a write wire of the other. There are nine wires, increasing the efficiency of use of the wires.

また、1IrI記の一方説み出し線と他方の薔き込み線
′に結線するmryyxosywTゲートを設けること
によって、2つのRAMrfllのデータの□ダイレク
ト・メモ1ノーアクセス(1)MA)転送を容易にでき
る。
In addition, by providing an mryyxosywT gate connected to one lead line and the other rosette line of 1IrI, direct memory 1 no access (1) MA) transfer of data in two RAM rfllls is facilitated. can.

本発明の!!施例t−図面を用いて詳しく説明する。The invention! ! Example t - This will be explained in detail using the drawings.

纂3図は本発明の賽―例回路でめ91語1図のRAMに
本発明の方法を適用したものである。RAMセルは、読
み出し用のMOSFET1.1’、畳き込み用のMOS
FET2.2’ 、データを記憶するMOSFET3 
、”3’からなゐ、また、リフレ曽シュ回路は、読み出
し及び畳き込み線8゜9tプリチヤージするhttos
vwTa 、4’%読み出しデータを薔き込み線にフィ
ードバックするMOSFET6.6’ 、7.7’及び
インバー−5,5′よシなる。
Figure 3 shows an example circuit of the present invention in which the method of the present invention is applied to a RAM of 91 words and 1 figure. The RAM cell is MOSFET1.1' for reading and MOS for convolution.
FET2.2', MOSFET3 that stores data
, ``3'', and the refresh circuit has a readout and convolution line 8°9t precharge httos.
vwTa, MOSFETs 6.6', 7.7', and inverters 5, 5' which feed back the 4'% read data to the bushing line.

この嫌に構成され九回路の動作をタイミングチャート5
1144図を参照して説明すると、プリチャージ(Pr
・)信号によりて、ディジッ)m8*9がプリチャージ
され、次に信号RD、RD、によってRAMセル内のデ
ータが8.9に読み出されると同時に6.6’ を通っ
てインバータ5,5′の入力ゲートにチャージされる。
Timing chart 5 shows the operation of this poorly configured nine circuits.
To explain with reference to FIG. 1144, precharge (Pr
The digit) m8*9 is precharged by the ・) signal, and then the data in the RAM cell is read out at 8.9 by the signals RD, RD, and simultaneously passes through 6.6' to the inverters 5 and 5'. is charged to the input gate of

この時%絖み出しモードのとIFi8.9’を遍して外
部へ読み出せる。
At this time, it can be read out to the outside through IFi8.9' in the % cutting mode.

信号WR,WRsによりて7.7’、2.2’が導通し
、3,3・′のゲートにデータが書き込まれリフレッシ
、される、まえ、畳き込みモードのときはこれに続いて
WR傷信号に・よって2.2′が場通し% 8.91−
通し9て外部より人力することによって書き込みができ
る。従って、ディジット@ 8゜9は読み書きの両状態
で使用されている。
7.7' and 2.2' are made conductive by the signals WR and WRs, and data is written to the gates of 3, 3, and refreshed. Due to the damage signal, 2.2' is passed % 8.91-
Writing can be done manually from outside through the 9. Therefore, digits @8°9 are used in both read and write states.

第・5図はRAM間のデータ伝送管容易にした回路の実
施例である。ここで、RAMAとRAMBは通常は信号
Xによりて分離され、独立に動作しそれぞれ114図と
同様なタイミングによって読み出し、書き込み、リフレ
ッシ、が可能である。RAMAとRAMBの間にDMA
転送をする場合には。
FIG. 5 shows an embodiment of a circuit that facilitates data transmission between RAMs. Here, RAMA and RAMB are usually separated by a signal X, operate independently, and can be read, written, and refreshed at the same timing as shown in FIG. 114. DMA between RAMA and RAMB
In case of transfer.

まず信号、XKよってM08FETl、!が導通する。First of all, the signal is M08FETl by XK! conducts.

この状態でリフレ!シ1回路の信号RDIA。Refrain in this state! Signal RDIA of C1 circuit.

RDIB、WRIA、WRIBをマスクすることを除い
て通常のリフレ、シ、サイクルと同様に、プリチャージ
、耽み出し、書暑込み會行うことによって(謳6図参照
)、RAMAの趨ばれたワード繊のセルのデータがRA
MHの対応するセルに書き込まれ%tたfiFi時にR
AMBのセルのデータがRAMAのセルに書き込まれる
。この嫌な操作をRAMARAM Bの全ワード線につ
いて行う、ことによりてRAMAとRAMBの内容すべ
て入れ換えることができる。ま九* RA M A t
たはRAMBのどちらか一方の書き込み信号WRBIr
ffスクすゐことによりて一方のデータを他方に書き込
むことができる。ここで重量なことは、この僚な操作は
ダイナtyりRAMのりフレッV&のための回路を利用
してでき1%別な回路を設ける必要がないことである。
By performing precharging, indulgence, and writing heat exchange in the same way as the normal reflation, shift, and cycle except for masking RDIB, WRIA, and WRIB (see Figure 6), the fallen word of RAMA is Sen cell data is RA
R when fiFi written to corresponding cell of MH and %t
The data in the AMB cell is written into the RAMA cell. By performing this unpleasant operation on all word lines of RAMARAM B, the entire contents of RAMA and RAMB can be exchanged. Maku *RA M A t
or RAMB write signal WRBIr
Data from one can be written to the other by scanning the ff. The important thing here is that this simple operation can be done using the circuit for the dynamic RAM pasteboard V&, and there is no need to provide a 1% separate circuit.

上記のRAMを用いることによって、!ルチプロセ曹す
タイプのプロセッサにおいても回路を複雑にすることな
しに極めてデータ転送を効率よく実現することができる
By using the above RAM! Even in a multi-processor type processor, data transfer can be achieved extremely efficiently without complicating the circuit.

【図面の簡単な説明】[Brief explanation of drawings]

第1図は従来例回路図、第2図は第1図のタイ電ングチ
ャート、第3図は本発明の!I!總例回路図、第4図は
第3図のタイ電ンダチャート、臨5図は本発明の実施例
回路図、纂6図は885図のタイ電ングチャートであゐ
。 1〜6:FIT 篤 7図 小 −]−]1−−−− −’D  −−−J−t−一− WIG’  −「]− g  、r。
Fig. 1 is a circuit diagram of the conventional example, Fig. 2 is a tie-up chart of Fig. 1, and Fig. 3 is a circuit diagram of the present invention! I! An example circuit diagram, FIG. 4 is a tie diagram of FIG. 3, FIG. 5 is a circuit diagram of an embodiment of the present invention, and FIG. 6 is a tie diagram of FIG. 885. 1-6: FIT Atsushi 7 Figure Small -]-]1-------'D---J-t-1-WIG'-']-g, r.

Claims (2)

【特許請求の範囲】[Claims] (1)aみ出し用のMO8F’ETと書き込み用のMO
SFETとデーー會記憶するMOSFETの3個のMO
SFETからなるメモリセルと、読み出し−を、プリチ
ャージするMO8,FETとメモリセルより読み出し九
データを書き込み線にツイードパークする2@0M08
FETl^トと1個の47バータよpなるリフレ!シ、
用回路から構成される単位の2つKついて一方の書き込
み線が他方の読み出し線にt九一方の読み出し線が他方
の書き込み@になることを特徴とする半導体記憶回路。
(1) MO8F'ET for protruding a and MO for writing
SFET and three MOSFET memory memory
Precharge the memory cell consisting of SFET and read-out MO8, Tweed park the read-out data from the FET and memory cell to the write line 2@0M08
FETl^t and one 47 barter! C,
1. A semiconductor memory circuit characterized in that one write line becomes the other read line and one read line becomes the other write @ for each unit consisting of two K circuits.
(2)一方の書き込み線と他方の読み出し1i會結線す
る箇所にMOliiFETゲート管もち゛、上記の2個
の単位間のデー−転送が容易にできる仁とを特徴とする
特許請求の範囲$11(1)項記載の半導体記憶回路。
(2) A MOlii FET gate tube is provided at the point where one write line and the other read line are connected, so that data transfer between the two units described above can be easily performed. The semiconductor memory circuit described in (1).
JP56215661A 1981-12-24 1981-12-24 Semiconductor storing circuit Pending JPS58111185A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56215661A JPS58111185A (en) 1981-12-24 1981-12-24 Semiconductor storing circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56215661A JPS58111185A (en) 1981-12-24 1981-12-24 Semiconductor storing circuit

Publications (1)

Publication Number Publication Date
JPS58111185A true JPS58111185A (en) 1983-07-02

Family

ID=16676079

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56215661A Pending JPS58111185A (en) 1981-12-24 1981-12-24 Semiconductor storing circuit

Country Status (1)

Country Link
JP (1) JPS58111185A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012119050A (en) * 2010-11-08 2012-06-21 Semiconductor Energy Lab Co Ltd Semiconductor memory device and method for driving semiconductor memory device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012119050A (en) * 2010-11-08 2012-06-21 Semiconductor Energy Lab Co Ltd Semiconductor memory device and method for driving semiconductor memory device

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