DM7556 DM8556 TRI-STATE Programmable Binary Counters
August 1989
DM7556 DM8556 TRI-STATE Programmable Binary Counters
General Description
These circuits are synchronous edge-sensitive fully-programmable 4-bit counters The counters feature both conventional totem-pole and TRI-STATE outputs such that when the outputs are in the high impedance mode they can b...