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JPS5654681A - Decoding circuit - Google Patents

Decoding circuit

Info

Publication number
JPS5654681A
JPS5654681A JP13014479A JP13014479A JPS5654681A JP S5654681 A JPS5654681 A JP S5654681A JP 13014479 A JP13014479 A JP 13014479A JP 13014479 A JP13014479 A JP 13014479A JP S5654681 A JPS5654681 A JP S5654681A
Authority
JP
Japan
Prior art keywords
address input
decoding
bits
output
word line
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
JP13014479A
Other languages
Japanese (ja)
Other versions
JPS6235190B2 (en
Inventor
Kazuo Tokushige
Toshio Eguchi
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
NEC Engineering Ltd
Original Assignee
NEC Corp
NEC Engineering Ltd
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, NEC Engineering Ltd, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP13014479A priority Critical patent/JPS5654681A/en
Publication of JPS5654681A publication Critical patent/JPS5654681A/en
Publication of JPS6235190B2 publication Critical patent/JPS6235190B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C8/00—Arrangements for selecting an address in a digital store
    • G11C8/10—Decoders

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Static Random-Access Memory (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

PURPOSE:To reduce great amount of power consumption, by change-over the switching signal with the address input signal, dividing the output of a single unit of the decoder into the plural parts and thus securing the decoding function assigned for every plural number. CONSTITUTION:The switching signals X1-X4 are obtained through the NOR gate as well as the logic inverter of X1=A5-A6, X2=-A5, A6, X3=-A5, -A6 and X4=A5, A6 and via A5 and -A6 equivalent to 2 bits within the address input. In such way, the allotment is secured to one of the four through the NOR gate type decoder and in correspondence to the address input of 5 bits. As a result, the decoding output of 32X4=128 can be obtained. The output node of each decoding is supplied to the word line driving terminal of the static memory after receiving the sufficient driving capacity via each of the buffers AP1-AP128. Thus the address input of 7 bits yields the 128 pieces of decoding outputs can be obtained for selection of the word line.
JP13014479A 1979-10-09 1979-10-09 Decoding circuit Granted JPS5654681A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13014479A JPS5654681A (en) 1979-10-09 1979-10-09 Decoding circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13014479A JPS5654681A (en) 1979-10-09 1979-10-09 Decoding circuit

Publications (2)

Publication Number Publication Date
JPS5654681A true JPS5654681A (en) 1981-05-14
JPS6235190B2 JPS6235190B2 (en) 1987-07-31

Family

ID=15027017

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13014479A Granted JPS5654681A (en) 1979-10-09 1979-10-09 Decoding circuit

Country Status (1)

Country Link
JP (1) JPS5654681A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6059588A (en) * 1983-09-12 1985-04-05 Hitachi Ltd Semiconductor storage device
JPS61237294A (en) * 1985-04-12 1986-10-22 Hitachi Ltd Dynamic type ram
JPS62117187A (en) * 1985-11-15 1987-05-28 Mitsubishi Electric Corp Two-ports semiconductor memory device
JPS63285793A (en) * 1987-05-18 1988-11-22 Mitsubishi Electric Corp Decoder circuit

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS528739A (en) * 1975-07-10 1977-01-22 Fujitsu Ltd Electronic circuit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS528739A (en) * 1975-07-10 1977-01-22 Fujitsu Ltd Electronic circuit

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6059588A (en) * 1983-09-12 1985-04-05 Hitachi Ltd Semiconductor storage device
JPH0568040B2 (en) * 1983-09-12 1993-09-28 Hitachi Ltd
JPS61237294A (en) * 1985-04-12 1986-10-22 Hitachi Ltd Dynamic type ram
JPS62117187A (en) * 1985-11-15 1987-05-28 Mitsubishi Electric Corp Two-ports semiconductor memory device
JPS63285793A (en) * 1987-05-18 1988-11-22 Mitsubishi Electric Corp Decoder circuit

Also Published As

Publication number Publication date
JPS6235190B2 (en) 1987-07-31

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