Rev.3.00, Jul.15.2005, page 1 of 7

HD74LS293

4-bit Binary Counter

REJ03D0477–0300

Rev.3.00

Jul.15.2005

This counter contains four master-slave flip-flops and additional gating to provide a divide-by-two counter and divide-

by-eight counter. This counter has a gated zero reset. To use the maximum count length of this counter, the B input is

appropriate function table.

Features

• Ordering Information

Part Name

Package Type

Package Code

(Previous Code)

Package

Abbreviation

Taping Abbreviation

(Quantity)

HD74LS293P

DILP-14 pin

PRDP0014AB-B

(DP-14AV)

P

—

Pin Arrangement

(Top view)

GND

1

2

3

4

5

6

7

14

8

9

10

11

12

13

NC

NC

NC

NC

B

B

A

A

Outputs

Inputs

Outputs

Function Table

Reset / Count

Reset Input

Outputs

H

H

L

L

L

L

L

X

Count

X

L

Count