74ABT899 데이터 시트보기 (PDF) - Fairchild Semiconductor

부품명

상세내역

일치하는 목록

74ABT899

9-Bit Latchable Transceiver with Parity Generator/Checker

Fairchild Semiconductor 

November 1992

Revised January 1999

74ABT899

9-Bit Latchable Transceiver

with Parity Generator/Checker

General Description

The ABT899 is a 9-bit to 9-bit parity transceiver with trans-

parent 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 ABT899 features 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.

Features

s Latchable transceiver with output sink of 64 mA

s Option to select generate parity and check or

“feed-through” data/parity in directions A-to-B or B-to-A

s Independent latch enables for A-to-B and B-to-A

directions

s Select pin for ODD/EVEN parity

s ERRA and ERRB output pins for parity checking

s Ability to simultaneously generate and check parity

s May be used in systems applications in place of the

543 and 280

s May be used in system applications in place of the

657 and 373 (no need to change T/R to check parity)

s Guaranteed output skew

s Guaranteed multiple output switching specifications

s Output switching specified for both 50 pF and

250 pF loads

s Guaranteed simultaneous switching noise level and

dynamic threshold performance

s Guaranteed latchup protection

s High impedance glitch free bus loading during entire

power up and power down cycle

s Nondestructive hot insertion capability

s Disable time less than enable time to avoid bus

contention

Ordering Code:

Order Number Package Number

Package Description

74ABT899CSC

M28B

28-Lead Small Outline Integrated Circuit (SOIC), MS-013, 0.300” Wide Body

74ABT899CMSA

MSA28

28-Lead Shrink Small Outline Package (SSOP), EIAJ TYPE II, 5.3mm Wide

74ABT899CQC

V28A

28-Lead Plastic Lead Chip Carrier (PLCC), JEDEC MO-047, 0.450” Square

Devices also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering code.

Connection Diagrams

Pin Assignment

for PLCC

Pin Assignment for

SOIC and SSOP

© 1999 Fairchild Semiconductor Corporation DS011509.prf

www.fairchildsemi.com

Share Link: