Commercial 5V 4-Bit BIDIRECTIONAL Binary Counter IC, TTL/H/L, 20-Pin DIP
Multiplexer, LS Series, 1-Func, 8 Line Input, 1 Line Output, Configurable Output, TTL, PDIP20, PLASTIC, DIP-20
Encoder, LS Series, 8-Bit, TTL, CDIP20, HERMETIC SEALED, CERDIP-20
