74F191 Datasheet | Philips Semiconductors

INTEGRATED CIRCUITS 74F191 Up/down binary counter with reset and ripple clock Product specification IC15 Data Handbook 1995 Jul 17 Philips Semiconductors Philips Semiconductors Product specification Up/Down binary counter with reset and ripple clock Features - High speed - 125MHz typical fMAX - Synchronous, reversible counting - 4-Bit binary - Asynchronous parallel load capability - Cascadable without external logic - Single up/down control input DESCRIPTION The 74F191 is a 4-bit binary counter. It contains four edge-triggered master/slave flip-flops with internal gating and steering logic to provide asynchronous preset and synchronous count-up and count-down operations....