74AC899

更新时间： 2024-11-20 00:00:47

品牌	Logo	应用领域
美国国家半导体 - NSC		/
页数	文件大小	规格书
15页	178K
描述
9-Bit Latchable Transceiver with Parity Generator/Checker

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74AC899 数据手册

August 1994

74AC899 54ACT/74ACT899

9-Bit Latchable Transceiver

with Parity Generator/Checker

General Description

Features

Latchable transceiver with output sink of 24 mA

The ’AC/’ACT899 is a 9-bit to 9-bit parity transceiver with

transparent latches. The device can operate as a feed-

through transceiver or it can generate/check parity from the

8-bit data busses in either direction. The ’AC/’ACT899 fea-

tures independent latch enables for the A-to-B direction and

the B-to-A direction, a select pin for ODD/EVEN parity, and

separate error signal output pins for checking parity.

Option to select generate parity and check or ‘‘feed-

through’’ data/parity in directions A-to-B or B-to-A

Independent latch enable for A-to-B and B-to-A direc-

tions

Select pin for ODD/EVEN parity

ERRA and ERRB output pins for parity checking

Ability to simultaneously generate and check parity

May be used in system applications in place of the ’280

May be used in system applications in place of the ’657

and ’373 (no need to change T/R to check parity)

4 kV minimum ESD immunity

Logic Symbol

Connection Diagram

Pin Assignment for PCC and LCC

TL/F/10637–1

TL/F/10637–2

TRI-STATEÉ is a registered trademark of National Semiconductor Corporation.

FACT^TMis a trademark of National Semiconductor Corporation.

1995 National Semiconductor Corporation

TL/F/10637

RRD-B30M75/Printed in U. S. A.

12 3 4 5 6 7...15

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型号	品牌	获取价格	描述	数据表
74AC899QC	ETC	获取价格	Single 8-bit Bus Transceiver
74AC899QCQB	NSC	获取价格	9-Bit Latchable Transceiver with Parity Generator/Checker
74AC899QCQR	ETC	获取价格	Single 8-bit Bus Transceiver
74AC899QCX	NSC	获取价格	9-Bit Latchable Transceiver with Parity Generator/Checker
74AC899QCX	TI	获取价格	IC,BUS TRANSCEIVER,SINGLE,8-BIT,AC-CMOS,LDCC,28PIN,PLASTIC
74AC899QMQB	NSC	获取价格	9-Bit Latchable Transceiver with Parity Generator/Checker
74AC899QMX	NSC	获取价格	9-Bit Latchable Transceiver with Parity Generator/Checker
74ACQ153DC	TI	获取价格	AC SERIES, DUAL 4 LINE TO 1 LINE MULTIPLEXER, TRUE OUTPUT, CDIP20, CERAMIC, DIP-20
74ACQ153DCQR	TI	获取价格	AC SERIES, DUAL 4 LINE TO 1 LINE MULTIPLEXER, TRUE OUTPUT, CDIP20, CERAMIC, DIP-20
74ACQ153FC	TI	获取价格	AC SERIES, DUAL 4 LINE TO 1 LINE MULTIPLEXER, TRUE OUTPUT, CDFP20, CERAMIC, FP-20