4-Bit Binary Counter, Synchronous, 25MHz, 5V, DIP16, Commercial Extended
Binary Counter, LS Series, Synchronous, Positive Edge Triggered, 4-Bit, Bidirectional, TTL, PDIP16, DP-16
Counter Single 4-Bit Sync Binary UP/Down 16-Pin SOP
HD74LS668P
HD74LS169P
