74ACT280B(1998) View Datasheet(PDF) - STMicroelectronics

Part Name

Description

MFG CO.

74ACT280B
(Rev.:1998)

9 BIT PARITY GENERATOR/CHECKER

STMicroelectronics 

74ACT280

INPUT AND OUTPUT EQUIVALENT CIRCUIT

PIN DESCRIPTION

PIN No

5, 6

8, 9, 10, 11,

12, 13, 1, 2,

4

3

7

14

S Y M B OL

ΣEVEN

ΣODD

A to I

NC

GND

VCC

NAME AND FUNCTION

Parity Outputs

Data Inputs

No Connection

Ground (0V)

Positive Supply Voltage

TRUTH TABLE

NUMBER OF INPUT A TRHU I THAT ARE HIGH

0, 2, 4, 6, 8

1, 3, 5, 7, 9

LOGIC DIAGRAM

ΣEVEN

H

L

OUTPUT

ΣODD

L

H

2/8

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