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54F 74F657 Octal Bidirectional Transceiver

with 8-Bit Parity Generator Checker and TRI-STATE Outputs

December 1994

54F 74F657 Octal Bidirectional Transceiver

with 8-Bit Parity Generator Checker

and TRI-STATE Outputs

General Description

The 鈥橣657 contains eight non-inverting buffers with

TRI-STATE outputs and an 8-bit parity generator checker

It is intended for bus-oriented applications The buffers have

a guaranteed current sinking capability of 24 mA (20 mA mil)

at the A port and 64 mA (48 mA mil) at the B port

Features

Y

Y

Y

Y

Y

Y

300 Mil 24-pin slimline DIP

Combines 鈥橣245 and 鈥橣280A functions in one package

TRI-STATE outputs

B Outputs sink 64 mA (48 mA mil)

12 mA source current B side

Input diodes for termination effects

Commercial

74F657SPC

Military

Package

Number

N24C

Package Description

24-Lead (0 300 Wide) Molded Dual-In-Line

24-Lead (0 300 Wide) Ceramic Dual-In-Line

24-Lead (0 300 Wide) Molded Small Outline JEDEC

24-Lead Cerpack

24-Lead Ceramic Leadless Chip Carrier Type C

54F657SDM (Note 2)

75F657SC (Note 1)

54F657FM (Note 2)

54F657LM (Note 2)

Note 1

Devices also available in 13 reel Use suffix

e

SCX

J24F

M24B

W24C

E28A

Note 2

Military grade device with environmental and burn-in processing Use suffix

e

DMQB FMQB and LMQB

Logic Symbols

IEEE IEC

TL F 9584 鈥?1

TL F 9584 鈥?5

TRI-STATE is a registered trademark of National Semiconductor Corporation

C

1995 National Semiconductor Corporation

TL F 9584

RRD-B30M75 Printed in U S A

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