54F169 Datasheet | National Semiconductor

54F 74F169 4-Stage Synchronous Bidirectional Counter Obsolete November 1994 54F 74F169 4-Stage Synchronous Bidirectional Counter General Description The ’F169 is a fully synchronous 4-stage up down counter The ’F169 is a modulo-16 binary counter Features a preset capability for programmable operation carry lookahead for easy cascading and a U D input to control the direction of counting All state changes whether in counting or parallel loading are initiated by the LOW-to-HIGH transition of the clock Features Y Asynchronous counting and loading Y Built-in lookahead carry capability Y Presettable for programmable operation mercial 74F169PC 74F169SC (Note 1) 74F169SJ (Note...