M74HC590 is a high speed CMOS 8-BIT BINARY COUNTER REGISTER (3 STATE)
The M74HC590 is a high-speed CMOS 8-bit binary counter register fabricated with silicon gate C2MOS technology. It contains an 8-bit binary counter that feeds an 8-bit storage register with parallel outputs. The device features separate clocks for the counter and register, a direct clear input, a count enable input, and a ripple carry output for cascading multiple units.
| Max Clock Frequency | 61 MHz (Typ.) at VCC = 6V |
|---|---|
| Supply Voltage Range | 2V to 6V |
| Output Type | 3 State |
| Technology | Silicon gate C2MOS |
| Operating Temperature | -55 to 125 °C |
| Package Types | DIP, SOP, TSSOP |
Both the counter and register clocks are positive edge triggered.
Expansion is accomplished by tying the ripple carry output (RCO) of the first stage to the count enable input (CCKEN) of the second stage.
Internal circuitry prevents clocking from the clock enable.