74HC4020 Overview
Description
The ’HC4020 devices are 14-stage binary ripple-carry counters that advance on the negative-going edge of the clock pulse. The counters are reset to zero (all outputs low) independently of the clock (CLK) input when the clear (CLR) input goes high.
Key Features
- Wide operating voltage range of 2 V to 6 V
- Outputs can drive up to 10 LSTTL loads
- Low power consumption, 80-µA max ICC
- Typical tpd = 12 ns
- ±4-mA output drive at 5 V
- Low input current of 1 µA max
