8-bit BIDIRECTIONAL binary counter (3-STATE) F/FAST SERIES, SYN POSITIVE EDGE TRIGGERED 8-bit BIDIRECTIONAL binary counter, PDIP16 From old datasheet system
8-bit BIDIRECTIONAL binary counter (3-STATE) F/FAST SERIES, SYN POSITIVE EDGE TRIGGERED 8-bit BIDIRECTIONAL binary counter, PDSO20 From old datasheet system