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HD74ACT280

9-bit Parity Generator/Checker

Hitachi -> Renesas Electronics 

HD74AC280/HD74ACT280

9-bit Parity Generator/Checker

Description

The HD74AC280/HD74ACT280 is a high-speed parity generator/checker that accepts nine bits of input

data and detects whether an even or an odd number of these inputs is High. If an even number of inputs is

High, the Sum Even output is High. If an odd number is High, the Sum Even output is Low. The Sum Odd

output is the complement of the Sum Even output.

Features

• Outputs Source/Sink 24 mA

• HD74ACT280 has TTL-Cmpatible Inputs

Pin Arrangement

I6 1

I7 2

NC 3

I8 4

ΣE 5

ΣO 6

GND 7

(Top view)

14 VCC

13 I5

12 I4

11 I3

10 I2

9 I1

8 I0

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