MM54C192 MM74C192 Synchronous 4-Bit Up Down Decade Counter MM54C193 MM74C193 Synchronous 4-Bit Up Down Binary Counter
February 1988
MM54C192 MM74C192 Synchronous 4-Bit Up Down Decade Counter MM54C193 MM74C193 Synchronous 4-Bit Up Down Binary Counter
General Description
These up down counters are monolithic complementary MOS (
CMOS) integrated circuits The MM54C192 and www.
DataSheet4U.
com MM74C192 are BCD counters while the MM54C193 and MM74C193 are binary counters Counting up and counting down is performed by two count inputs one being held high while the other is clocked The outputs change on the positive-going transition of this clock These counters feature preset inputs that are set when...