74561 4-bit 3-state synchronous binary counter with sync/async load, sync/async reset, and ripple/clocked carry output. +----------+ /ALD |1 +--+ 20| VCC CLK |2 19| RCO P0 |3 18| CCO P1 |4 17| /OE P2 |5 74 16| Q0 P3 |6 561 15| Q1 ENP |7 14| Q2 /ARST |8 13| Q3 /SRST |9 12| ENT GND |10 11| /SLD +----------+ [This information is part of the GIICM]