HD74ACT163 Overview
The HD74ACT161 and HD74ACT163 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 HD74ACT161 have an asynchronous Master Reset input that overrides all other inputs and forces the outputs Low.
HD74ACT163 Key Features
- Synchronous Counting and Loading High-Speed Synchronous Expansion Typical Count Rate of 125 MHz Outputs Source/Sink 24 m
- MR for HD74ACT161
- SR for HD74AC163/HD74ACT163 TC
- Master Reste (MR, HD74ACT161), Synchronous Reset (SR , HD74ACT163), Parallel Enable (PE ), Count Enable Parallel (CEP) a
- determine the mode of operation, as shown in the Mode Select Table. A Low signal on MR overrides all other inputs and as