KR900005702A - 프로그램 가능한 입력/출력회로 및 프로그램 가능한 논리소자 - Google Patents

프로그램 가능한 입력/출력회로 및 프로그램 가능한 논리소자 Download PDF

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KR900005702A
KR900005702A KR1019890013054A KR890013054A KR900005702A KR 900005702 A KR900005702 A KR 900005702A KR 1019890013054 A KR1019890013054 A KR 1019890013054A KR 890013054 A KR890013054 A KR 890013054A KR 900005702 A KR900005702 A KR 900005702A
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input
output
signal
circuit
programmable
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KR1019890013054A
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KR930009153B1 (ko
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케이이치 카와나
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야기 야스히로
가와사끼 세이데쯔 가부시끼 가이샤
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    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K19/00—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
    • H03K19/02—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components
    • H03K19/173—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components using elementary logic circuits as components
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K19/00—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
    • H03K19/02—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components
    • H03K19/173—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components using elementary logic circuits as components
    • H03K19/177—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components using elementary logic circuits as components arranged in matrix form
    • H03K19/17736—Structural details of routing resources
    • H03K19/17744—Structural details of routing resources for input/output signals
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K19/00—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
    • H03K19/0175—Coupling arrangements; Interface arrangements
    • H03K19/01759—Coupling arrangements; Interface arrangements with a bidirectional operation
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K19/00—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
    • H03K19/02—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components
    • H03K19/173—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components using elementary logic circuits as components
    • H03K19/177—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components using elementary logic circuits as components arranged in matrix form
    • H03K19/17704—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components using elementary logic circuits as components arranged in matrix form the logic functions being realised by the interconnection of rows and columns
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K19/00—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
    • H03K19/02—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components
    • H03K19/173—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components using elementary logic circuits as components
    • H03K19/177—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components using elementary logic circuits as components arranged in matrix form
    • H03K19/17704—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components using elementary logic circuits as components arranged in matrix form the logic functions being realised by the interconnection of rows and columns
    • H03K19/17708—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components using elementary logic circuits as components arranged in matrix form the logic functions being realised by the interconnection of rows and columns using an AND matrix followed by an OR matrix, i.e. programmable logic arrays
    • H03K19/17716—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components using elementary logic circuits as components arranged in matrix form the logic functions being realised by the interconnection of rows and columns using an AND matrix followed by an OR matrix, i.e. programmable logic arrays with synchronous operation, i.e. using clock signals, e.g. of I/O or coupling register
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K19/00—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
    • H03K19/02—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components
    • H03K19/173—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components using elementary logic circuits as components
    • H03K19/177—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components using elementary logic circuits as components arranged in matrix form
    • H03K19/1778—Structural details for adapting physical parameters
    • H03K19/17792—Structural details for adapting physical parameters for operating speed

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  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Computing Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Logic Circuits (AREA)

Abstract

내용 없음.

Description

프로그램 가능한 입력/출력회로 및 프로그램 가능한 논리소자
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제 1 도는, 본 발명에 의한 프로그램 가능한 입력/출력회로의 제 1 의 바람직한 실시예의 구성을 나타내는 회로도.
제 2 도는, 본 발명에 의한 프로그램 가능한 입력/출력회로와 결합되는 프로그램 가능한 논리소자(PLD)의 비교예의 구성을 나타내는 블록도.
제 3 도는, 본 발명에 의한 PLD의 바람직한 실시예의 구성을 나타내는 블록도.
제 4 도는, 본 발명에 의한 프로그램 가능한 입력/출력회로의 제 2 의 바람직한 실시예의 구성을 나타내는 회로도.

Claims (9)

  1. 집적회로의 외부회로와 내부 논리회로 사이의 인터페이스를 행하기 위하여 프로그램 가능한 집적회로 내에서 사용되는 프로그램 가능한 입력/출력회로로서 ; 내부 논리회로의 버스에 접속되는 입력/출력단자(40)와 ; 내부 논리회로의 프로그램 가능한 배선에 접속되는 입력단자(42)와 ; 회로의 외부에서 공급되는 입력신호를 상기 입력/출력단자(40) 및 상기 입력단자(42)중의 어느 하나로 전달하기 위한 3상태 입력 버퍼(44),(48) 및 ; 내부 논리회로에서 상기 입력/출력단자(40)로 공급되는 출력신호를 회로의 외부로 전달하기 위한 3상태 출력버퍼(24)로 구성되는 프로그램 가능한 입력/출력회로.
  2. 제 1 항에 있어서, 상기 입력신호는 TTL 또는 CMOS 논리레벨에서 내부 논리레벨로 변환하기 위한 입력버퍼(18)를 더욱 포함하는 프로그램 가능한 입력/출력회로.
  3. 제 1 항에 있어서, 상기 3상태 입력버퍼(44),(48)는, 상기 입력신호를 상기 입력/출력단자(40)로 전달하기 위한 제 1 의 3상태 출력버퍼(44)와, 상기 입력신호를 상기 입력단자(42)로 전달하기 위하여 메모리셀(M)내에 기억된 내용에 따라서 스위치 온 및 스위치 오프되는 제 2 의 3상태 입력버퍼(48)를 포함하는 프로그램 가능한 입력/출력회로.
  4. 제 3 항에 있어서, 그의 내부에 메모리셀(M)을 포함하여, 상기 제 1 의 3상태 입력버퍼(44)에 대한 상태 제어신호로서 상기 입력단자(42)를 통하여 들어온 어스 신호 및 칩 인에이블 신호(CE) 중의 어느 하나를 선택하는 2입력 멀티플렉서(50)를 더욱 포함하는 프로그램 가능한 입력/출력회로.
  5. 제 1 항에 있어서, 상기 출력버퍼(24)의 온/오프 상태는 내부 논리회로로부터 출력제어단자(26)로 인가되는 출력 인에이블 신호에 의하여 제어되는 프로그램 가능한 입력/출력회로.
  6. 제 1 항에 있어서, 상기 입력신호가 인가되는 패드(16)의 전위를 끌어올리기 위한 풀업저항(51)과, 상기 풀업저항(51)의 스위치 온 및 스위치 오프를 위한 메모리셀(M)을 그의 내부에 내장하는 패스 트랜지스터(52)를 더욱 포함하는 프로그램 가능한 입력/출력회로.
  7. 제 1 항에 있어서, 여러 가지 신호를 래치하기 위한 D플립플롭(20)과, 상기 D플립플롭(20)으로부터의 출력 신호 및 통상의 신호중의 어느 하나를 선택하기 위한 2입력 멀티플렉서(22)를 더욱 포함하는 프로그램 가능한 입력/출력회로.
  8. 제 1 항에 있어서, 리셋트 신호를 수납하기 위한 제 1 리셋트 단자(70)와, 글로벌 리셋트 신호를 수납하기 위한 제 2 리셋트 단자(72) 및, 상기 제 1 리셋트 단자(70) 및 제 2 리셋트 단자(72)로 인가되는 신호의 논리합의 부정을 리셋트 신호로서 출력하기 위한 NOR 게이트(74)를 더욱 포함하는 프로그램 가능한 입력/출력회로.
  9. 프로그램 가능한 입력/출력회로 블록(80)을 포함하는 프로그램 가능한 논리소자로서 : 상기 입력/출력회로 블록(80)내에 마련되는 입력/출력제어단자(108),(110)와 ; 전기적 접속 프로그래밍이 가능한 배선 수단(102)과 ; 인에이블 제어 입력단자를 포함하는 3상태 버퍼(106)를 포함하여 구성되며, 상기 3상태 버퍼(106)의 인에이블 제어는 상기 입력/출력회로 블록(80)내에서 발생되는 제어신호에 의하여 수행되는 프로그램 가능한 논리소자.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019890013054A 1988-09-08 1989-09-08 프로그램 가능한 입력/출력회로 및 프로그램 가능한 논리소자 KR930009153B1 (ko)

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EP (1) EP0358501A3 (ko)
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EP0358501A3 (en) 1990-09-05
EP0358501A2 (en) 1990-03-14
US4987319A (en) 1991-01-22
KR930009153B1 (ko) 1993-09-23
CA1326716C (en) 1994-02-01

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