M74HC590
Description
The M74HC590 is an high speed CMOS 8-BIT BINARY COUNTER REGISTER (3 STATE) fabricated with silicon gate C2MOS technology.
Key Features
- a direct clear input CCLR and a count enable input CCKEN
- For cascading, a ripple carry output RCO is provided
- Expansion is easily acplished by tying RCO of the first stage to CCKEN of the second stage, etc
- Both the counter and register clocks are positive edge triggered
- If the user wishes to connect both clocks together, the counter state will always be one count ahead of the register
- Internal circuitry prevents clocking from the clock enable
- All inputs are equipped with protection circuits against static discharge and transient excess voltage
