JPS5589985A - Semiconductor memory unit - Google Patents

Semiconductor memory unit

Info

Publication number
JPS5589985A
JPS5589985A JP16487278A JP16487278A JPS5589985A JP S5589985 A JPS5589985 A JP S5589985A JP 16487278 A JP16487278 A JP 16487278A JP 16487278 A JP16487278 A JP 16487278A JP S5589985 A JPS5589985 A JP S5589985A
Authority
JP
Japan
Prior art keywords
terminal
output
address
circuit
data
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
JP16487278A
Other languages
Japanese (ja)
Inventor
Yasuhiko Nagahashi
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 JP16487278A priority Critical patent/JPS5589985A/en
Publication of JPS5589985A publication Critical patent/JPS5589985A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C5/00—Details of stores covered by group G11C11/00
    • G11C5/06—Arrangements for interconnecting storage elements electrically, e.g. by wiring
    • G11C5/066—Means for reducing external access-lines for a semiconductor memory clip, e.g. by multiplexing at least address and data signals

Landscapes

  • Static Random-Access Memory (AREA)
  • Read Only Memory (AREA)

Abstract

PURPOSE:To enable to commonly use the same terminal for the address and data information terminals, with high impedance data output circuit when address information is written in. CONSTITUTION:The terminal T is connected to the input terminal of the address inverter circuit 10 and the output terminal of the data outut circuit 11, and the terminal S is constituted so that the first strobe signal S can be inputted. Assuming that the signal S is at ''0'' before the time t0 and at ''1'' for the time t0-t2. While this, the input level of the terminal T is fed to the address inverter circuit 10, the signals AD, AD' are inputted to the output address latch circuit 13, and the information corresponding to AD, AD' is kept after the latch time t2. If RD, RD' are assured after the time t1, the signal S is taken as the logic ''0'', the output of the data output circuit 11 is taken from high to low impedance state, allowing the readout data to output to the terminal T. Thus, the same terminal T can commonly be used.
JP16487278A 1978-12-27 1978-12-27 Semiconductor memory unit Pending JPS5589985A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16487278A JPS5589985A (en) 1978-12-27 1978-12-27 Semiconductor memory unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16487278A JPS5589985A (en) 1978-12-27 1978-12-27 Semiconductor memory unit

Publications (1)

Publication Number Publication Date
JPS5589985A true JPS5589985A (en) 1980-07-08

Family

ID=15801521

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16487278A Pending JPS5589985A (en) 1978-12-27 1978-12-27 Semiconductor memory unit

Country Status (1)

Country Link
JP (1) JPS5589985A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62177695A (en) * 1986-01-31 1987-08-04 Toshiba Corp memory card
JPH07296593A (en) * 1994-04-28 1995-11-10 Mega Chips:Kk Semiconductor storage device
US8098531B2 (en) 2006-10-31 2012-01-17 Fujitsu Semiconductor Limited Semiconductor memory device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62177695A (en) * 1986-01-31 1987-08-04 Toshiba Corp memory card
JPH07296593A (en) * 1994-04-28 1995-11-10 Mega Chips:Kk Semiconductor storage device
US8098531B2 (en) 2006-10-31 2012-01-17 Fujitsu Semiconductor Limited Semiconductor memory device

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