JPS55138128A - Memory circuit - Google Patents

Memory circuit

Info

Publication number
JPS55138128A
JPS55138128A JP4684879A JP4684879A JPS55138128A JP S55138128 A JPS55138128 A JP S55138128A JP 4684879 A JP4684879 A JP 4684879A JP 4684879 A JP4684879 A JP 4684879A JP S55138128 A JPS55138128 A JP S55138128A
Authority
JP
Japan
Prior art keywords
gates
side inputs
exn
memory circuit
exclusive
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.)
Granted
Application number
JP4684879A
Other languages
Japanese (ja)
Other versions
JPS6256598B2 (en
Inventor
Yasuo Akatsuka
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 JP4684879A priority Critical patent/JPS55138128A/en
Priority to US06/139,595 priority patent/US4337525A/en
Priority to EP80102068A priority patent/EP0017990B1/en
Priority to DE8080102068T priority patent/DE3070410D1/en
Publication of JPS55138128A publication Critical patent/JPS55138128A/en
Publication of JPS6256598B2 publication Critical patent/JPS6256598B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Static Random-Access Memory (AREA)

Abstract

PURPOSE: To provide an asynchronous memory circuit with the speed-power product nearly equal to that of synchronous one by applying address signals to one-side inputs of exclusive-OR gates and then by supplying those signals to other-side inputs of the gates by delaying.
CONSTITUTION: Address signals A0...An, applied to input terminals, are supplied to one-side inputs of exclusive-OR gates EX0...EXn and also supplied to other-side inputs of corresponding gates EX0...EXn via delay circuits D0...Dn. Then, outputs OS0...OSn of respective gates EX0...EXn are input to OR gate R, which outputs internal clock CE. Consequently, the asynchronous IC memory using the internal clock generated inside of it can be given the speed-power product nearly equal to that of synchronous one.
COPYRIGHT: (C)1980,JPO&Japio
JP4684879A 1979-04-17 1979-04-17 Memory circuit Granted JPS55138128A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP4684879A JPS55138128A (en) 1979-04-17 1979-04-17 Memory circuit
US06/139,595 US4337525A (en) 1979-04-17 1980-04-11 Asynchronous circuit responsive to changes in logic level
EP80102068A EP0017990B1 (en) 1979-04-17 1980-04-17 Integrated memory circuit
DE8080102068T DE3070410D1 (en) 1979-04-17 1980-04-17 Integrated memory circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4684879A JPS55138128A (en) 1979-04-17 1979-04-17 Memory circuit

Publications (2)

Publication Number Publication Date
JPS55138128A true JPS55138128A (en) 1980-10-28
JPS6256598B2 JPS6256598B2 (en) 1987-11-26

Family

ID=12758752

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4684879A Granted JPS55138128A (en) 1979-04-17 1979-04-17 Memory circuit

Country Status (1)

Country Link
JP (1) JPS55138128A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6337889A (en) * 1986-07-31 1988-02-18 Fujitsu Ltd Memory device
JPS63200390A (en) * 1987-12-25 1988-08-18 Toshiba Corp Semiconductor memory
JPS6470991A (en) * 1987-09-01 1989-03-16 Sgs Thomson Microelectronics Address change detection circuit

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63190293U (en) * 1987-05-29 1988-12-07

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5414130A (en) * 1977-07-01 1979-02-02 Ncr Co Memory having less connecting pins
JPS54152931A (en) * 1978-05-24 1979-12-01 Hitachi Ltd Semiconductor memory device
JPS554735A (en) * 1978-06-23 1980-01-14 Toshiba Corp Semiconductor memory

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5414130A (en) * 1977-07-01 1979-02-02 Ncr Co Memory having less connecting pins
JPS54152931A (en) * 1978-05-24 1979-12-01 Hitachi Ltd Semiconductor memory device
JPS554735A (en) * 1978-06-23 1980-01-14 Toshiba Corp Semiconductor memory

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6337889A (en) * 1986-07-31 1988-02-18 Fujitsu Ltd Memory device
JPS6470991A (en) * 1987-09-01 1989-03-16 Sgs Thomson Microelectronics Address change detection circuit
JPS63200390A (en) * 1987-12-25 1988-08-18 Toshiba Corp Semiconductor memory
JPH034993B2 (en) * 1987-12-25 1991-01-24 Tokyo Shibaura Electric Co

Also Published As

Publication number Publication date
JPS6256598B2 (en) 1987-11-26

Similar Documents

Publication Publication Date Title
JPS5787620A (en) Clock generating circuit
ES383650A3 (en) Phase difference detectors
JPS5284938A (en) Logic circuit
JPS55138128A (en) Memory circuit
JPS53110437A (en) Logic circuit
JPS54550A (en) Boltage comparison circuit
JPS5550734A (en) Programmable delay integrated circuit element
JPS6453177A (en) Semiconductor integrated circuit device
JPS5740793A (en) Memory circuit
JPS5538604A (en) Memory device
JPS6442720A (en) Clock generating circuit
JPS5271145A (en) Decoder circuit
JPS56129495A (en) Signal reception circuit
JPS5544676A (en) Interruption control unit
JPS54111748A (en) Programmable logic array
JPS5793434A (en) Serial port system
JPS6326717A (en) Semiconductor integrated circuit
JPS55154663A (en) Convolution operating system
JPS5680720A (en) Synchronous processing unit with partial processing circuit
JPS55125595A (en) Nonsynchronous switching system for dynamic random access memory
JPS52146139A (en) Obtaining method for 3 state output by using 2 state ttl circuit
JPS5456326A (en) Digital circuit device
JPS53148901A (en) Display circuit for preset toner
JPS5248445A (en) Synchronism matching system
JPS55150030A (en) Clock switching synchronous circuit