74HC191
Presettable synchronous 4-bit binary up/down counter
Rev. 3 — 3 January 2017
Product data sheet
1. General description
The 74HC191 is an asynchronously presettable 4-bit binary up/down counter. It contains four master/slave flip-flops with internal gating and steering logic to provide asynchronous preset and synchronous count-up and count-down op...
