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CD54AC163, CD74AC163 4-BIT SYNCHRONOUS BINARY COUNTERS
SCHS299B – APRIL 2000 – REVISED MARCH 2003
D Internal Look-Ahead for Fast Counting D Carry Output for n-Bit Cascading D Synchronous Counting D Synchronously Programmable
CD54AC163 . . . F PACKAGE CD74AC163 . . . E OR M PACKAGE
(TOP VIEW)
CLR 1 CLK 2
16 VCC 15 RCO
description/ordering information
The ’AC163 devices are 4-bit binary counters. These synchronous, presettable counters feature an internal carry look-ahead for application in
A3 B4 C5 D6 ENP 7
14 QA 13 QB 12 QC 11 QD 10 ENT
high-speed counting designs.