MM54HCT191 Datasheet | National Semiconductor

MM54HCT190 MM74HCT190 Synchronous Decade Up Down Counters with Mode Control MM54HCT191 MM74HCT191 Synchronous Binary Up Down Counters with Mode Control January 1988 MM54HCT190 MM74HCT190 Synchronous Decade Up Down Counters with Mode Control MM54HCT191 MM74HCT191 Synchronous Binary Up Down Counters with Mode Control General Description These high speed synchronous counters utilize advanced silicon-gate CMOS technology They possess the high noise immunity and low power consumption of CMOS technology along with the speeds of low power Schottky TTL These circuits are synchronous reversible up down counters The MM54HCT191 MM74HCT191 are 4-bit binary counters and the MM54HCT190 MM74HCT190 are...