54ACT161F Datasheet PDF - National

●General Description

●The ’AC/’ACT161 are high-speed synchronous modulo-16 binary counters. They are synchronously presettable for application in programmable dividers and have two types of Count Enable inputs plus a Terminal Count output for versatility in forming synchronous multistage counters. The ’AC/’ACT161 has an asynchronous Master Reset input that over rides all other inputs and forces the outputs LOW.

●Features

●■ ICC reduced by 50%

●■ Synchronous counting and loading

●■ High-speed synchronous expansion

●■ Typical count rate of 125 MHz

●■ Outputs source/sink 24 mA

●■ ’ACT161 has TTL-compatible inputs

●■ Standard Microcircuit Drawing (SMD)

●   — ’AC161: 5962-89561

●   — ’ACT161: 5962-91722