4-Bit Synchronous Up/Down Counter, 25MHz, PDIP
16-Bit Binary Counter, Commercial Temperature, 5V, 16-Pin PDIP
Synchronous 4-Bit Up/Down Counters With Up/Down Mode Control 16-PDIP 0 to 70
4-Bit Synchronous Up/Down Counter, Bidirectional, 25MHz, SOP
4-Bit Bidirectional Synchronous Counter, PDIP, 25MHz, 5V
SN74LS191NSR
SN74LS191NSG4
