KR970076272A - The tag matching circuit of the cache memory - Google Patents

The tag matching circuit of the cache memory Download PDF

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Publication number
KR970076272A
KR970076272A KR1019960015597A KR19960015597A KR970076272A KR 970076272 A KR970076272 A KR 970076272A KR 1019960015597 A KR1019960015597 A KR 1019960015597A KR 19960015597 A KR19960015597 A KR 19960015597A KR 970076272 A KR970076272 A KR 970076272A
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KR
South Korea
Prior art keywords
address signal
comparator
memory cell
nmos transistor
matching circuit
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Application number
KR1019960015597A
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Korean (ko)
Inventor
김정현
Original Assignee
김광호
삼성전자 주식회사
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Application filed by 김광호, 삼성전자 주식회사 filed Critical 김광호
Priority to KR1019960015597A priority Critical patent/KR970076272A/en
Publication of KR970076272A publication Critical patent/KR970076272A/en

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Abstract

본 발명은 캐쉬 메모리의 태그 매칭 회로에 관해 게시한다. 본 발명은 데이터를 저장하는 메모리 셀과, 상기 메모리 셀의 데이터를 비트 라인쌍을 통해서 감지, 증폭하는 감지 증폭기와, 감지 증폭기를 통해서 출력되는 메모리 데이터를 CPU에서 연산된 어드레스와 비교하여 메모리 셀 데이터와 어드레스 신호가 모두 논리 로우(low) 상태일 때와, 메모리 셀 데이터와 어드레스 신호가 모두 하이(high) 상태일 때만 매치 라인을 활성화 시키는 비교기로 구성함으로써 신호 처리 속도가 빨라진다.The present invention relates to a tag matching circuit of a cache memory. The present invention relates to a semiconductor memory device including a memory cell for storing data, a sense amplifier for sensing and amplifying data of the memory cell through a bit line pair, And a comparator that activates the match line only when both the address signal and the address signal are in a logic low state and when both the memory cell data and the address signal are in a high state.

Description

캐쉬(Cache) 메모리의 태그(Tag) 매칭 회로The tag matching circuit of the cache memory

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is a trivial issue, I did not include the contents of the text.

제2도는 본 발명의 캐쉬 메모리의 태그 매칭 회로의 개략도.FIG. 2 is a schematic diagram of a tag matching circuit of a cache memory according to the present invention; FIG.

Claims (2)

태그 블록의 감지 증폭기를 통해 출력되는 태그 메모리 데이터와 CPU 어드레스 신호를 비교하는 비교기를 갖는 캐쉬 메모리의 태그 매칭 회로에 있어서, 상기 비교기는 메모리 셀 데이터와 어드레스 신호가 모두 논리 로우(low) 상태일 때와, 메모리 셀 데이터와 어드레스 신호가 모두 논리 하이(high) 상태일 때만 매치 라인을 활성화 시키는 비교기인 것을 특징으로 하는 캐쉬 메모리의 태그 매칭 회로.A tag matching circuit of a cache memory having a comparator for comparing a tag memory data output through a sense amplifier of a tag block with a CPU address signal, the comparator comprising: a comparator for comparing the memory cell data and the address signal with each other when the memory cell data and the address signal are both logical low And a comparator for activating the match line only when both the memory cell data and the address signal are in a logic high state. 제1항에 있어서, 상기 비교기는 게이트가 감지 증폭기의 출력단의 일단에 연결되고 드레인은 매치 라인에 연결된 제1NMOS 트랜지스터와, 드레인은 상기 제1NMOS 트랜지스터의 소오스에 연결되고 게이트는 상보 어드레스선에 연결되며 소오스는 접지된 제2NMOS 트랜지스터와, 게이트 감지 증폭기의 출력단의 타단에 연결되고 드레인은 매치 라인에 연결된 제3NMOS 트랜지스터와, 드레인은 제3NMOS 트랜지스터의 소오스에 연결되고 게이트는 어드레스선에 연결되며 소오스는 접지된 제4NMOS 트랜지스터로 구성되는 것을 특징으로 하는 캐쉬 메모리의 태그 매칭 회로.The semiconductor memory device according to claim 1, wherein the comparator has a first NMOS transistor having a gate connected to one end of an output terminal of the sense amplifier and a drain connected to the match line, a drain connected to a source of the first NMOS transistor, A third NMOS transistor having a ground connected to the other end of the output terminal of the gate sense amplifier and having a drain connected to the match line; a drain connected to the source of the third NMOS transistor; a gate connected to the address line; And a fourth NMOS transistor connected in parallel with the first bit line. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: It is disclosed by the contents of the first application.
KR1019960015597A 1996-05-11 1996-05-11 The tag matching circuit of the cache memory KR970076272A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019960015597A KR970076272A (en) 1996-05-11 1996-05-11 The tag matching circuit of the cache memory

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Application Number Priority Date Filing Date Title
KR1019960015597A KR970076272A (en) 1996-05-11 1996-05-11 The tag matching circuit of the cache memory

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KR970076272A true KR970076272A (en) 1997-12-12

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101149816B1 (en) * 2004-05-28 2012-05-25 삼성전자주식회사 Cache hit logic of cache memory

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101149816B1 (en) * 2004-05-28 2012-05-25 삼성전자주식회사 Cache hit logic of cache memory

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