74590 8-bit 3-state synchronous binary counter with reset and output registers. Separate clocks for both counter and storage register, ripple carry output. +----------+ Q1 |1 +--+ 16| VCC Q2 |2 15| Q0 Q3 |3 14| /OE Q4 |4 74 13| RCLK Q5 |5 590 12| /CLKEN Q6 |6 11| CCLK Q7 |7 10| /CRST GND |8 9| /RCO +----------+ [This information is part of the GIICM]