LS SERIES, ASYN NEGATIVE EDGE TRIGGERED 4-BIT UP BINARY COUNTER, PDIP14, PLASTIC, MS-001AA, DIP-14
4-Bit Up Binary Counter, 74LS, Negative Edge Triggered, 35MHz, 5V, SOP

IC LS SERIES, POSITIVE EDGE TRIGGERED D FLIP-FLOP, TRUE OUTPUT, PDSO16, SO-16, FF/Latch