Hot-selling and scarce CD54HC4020F3A High-Speed CMOS Logic 14-Stage Binary Counter CDIP16 spot stock

Product Descriptions

The’HC4020  and’HCT4020  are   14-stage  ripple-carry binary  counters. All  counter stages  are  master-slave flipflops. The state of the stage advances one count on the negative clock transition of each input pulse; a high voltage level on the MR line resets all counters to their zero state.All inputs and outputs are buffered.

Product 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      -55oC to 125oC

•  Balanced Propagation Delay and Transition Times

•  Significant Power Reduction Compared to LSTTL Logic ICs

•  HC Types

-  2V to 6V Operation

-  High Noise Immunity: NIL = 30%, NIH = 30% of V CC at V CC = 5V

•  HCT Types

-  4.5V to 5.5V Operation

-  Direct LSTTL Input Logic Compatibility, VIL= 0.8V (Max),VIH = 2V (Min)

-  CMOS Input Compatibility, Il≤ 1µA at VOL,VOH

Product Photos

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WhenCE is HIGH (deselected),the device assumes a standby mode at which the power dissipation can be reduced down to250 µW (typical) with CMOS input levels.