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CD74HC4020 - 14-Stage Binary Counter

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General Description

The ’HC4020 and ’HCT4020 are 14-stage ripple-carry binary counters.

All counter stages are controller/ peripheral flip- flops.

The state of the stage advances one count on the negative clock transition of each input pulse;

Overview

CD54HC4020, CD74HC4020, CD54HCT4020, CD74HCT4020 SCHS201D – FEBRUARY 1998 – REVISED AUGUST 2022 CDx4HC4020, CDx4HCT4020 CDHigh-Speed CMOS Logic 14-Stage Binary Counter.

Key Features

  • Fully static operation.
  • Buffered inputs.
  • Common reset.
  • Negative edge clocking.
  • Fanout (over temperature range).
  • Standard outputs: 10 LSTTL loads.
  • Bus driver outputs: 15 LSTTL loads.
  • Wide operating temperature range: -55℃ to 125℃.
  • Balanced propagation delay and transition times.
  • Significant power reduction compared to LSTTL Logic ICs.
  • HC types.
  • 2 V to 6 V operation.
  • High noise imm.

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