8-Bit Binary Counter with Output Register, Tri-State in DIP16 package.
The 74HC590A is a high speed CMOS 8-BIT COUNTER/REGISTER fabricated with silicon gate C2MOS technology. It achieves the high speed operation similar to equivalent LSTTL while maintaining the CMOS low power dissipation. The internal counter counts on the positive going edge of Counter Clock (CCK) when Counter Clock Enable (CCKEN ) is low. When Counter Clear (CCLR ) is low, the internal counter is cleared asynchronously to the clock. Data in the internal counter are loaded into the register at positive going edge of Register Clock (RCK), and the register outputs are controlled by enable input (G ). All inputs are equipped with protection circuits against static discharge or transient excess voltage.