SN54ALS161B, SN54ALS162B, SN54ALS163B, SN54AS161, SN54AS163

SN74ALS161B, SN74ALS163B, SN74AS161, SN74AS163

SYNCHRONOUS 4-BIT DECADE AND BINARY COUNTERS

SDAS276 – DECEMBER 1994

4

POST OFFICE BOX 655303

logic diagram (positive logic)

1D

C1

1D

C1

1D

C1

1D

C1

1

9

10

7

2

3

4

5

6

15

14

13

12

11

CLR

LOAD

ENT

ENP

CLK

A

B

C

D

RCO

QA

QB

QC

QD

′ALS163B and ′AS163

Pin numbers shown are for the D, J, and N packages.

′ALS161B and ′AS161 synchronous binary counters are similar; however, CLR is asynchronous.