74193, 40193 4-bit synchronous binary up/down counter with asynchronous load and reset, and separate up and down clocks. Carry and borrow outputs. +----------+ P1 |1 +--+ 16| VCC Q1 |2 15| P0 Q0 |3 14| RST DOWN |4 74 13| /BORROW UP |5 193 12| /CARRY Q2 |6 11| /LOAD Q3 |7 10| P2 GND |8 9| P3 +----------+ [This information is part of the GIICM]