TI CD54HC4024F

HC4024 and HCT4024 are 7-stage ripple carry binary counters. All counter stages are flip-flops. Each negative transition of the input pulse increments the stage count by one; a high voltage level on the MR line resets all counters to the zero state. All inputs and outputs are buffered.

• Fully static operation
• Buffered inputs
• Universal reset
• Negative-edge clock
• Fan-out (over temperature range):
  • Standard outputs: 10 LSTTL loads
  • Bus driver outputs: 15 LSTTL loads
• Wide operating temperature range: -55 °C to 125 °C
• Balanced propagation delays and transition times
• Significantly reduced power consumption compared to LSTTL logic ICs
• HC type operating voltage: 2 V to 6 V
• High noise immunity: NIL = 30%, NIH = 30% of VCC when VCC = 5 V
• HCT type:
  • Operating voltage: 4.5 V to 5.5 V
  • Direct LSTTL input logic compatibility, VIL = 0.8 V (max), VIH = 2 V (min)
  • CMOS input compatibility at VOL, VOH voltages, II ≤ 1 μA