CD54HC4020 Datasheet - Texas Instruments

CD54HC4020 14-Stage Binary Counter

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; a high voltage level on the MR line resets all counters to their zero state..

CD54HC4020 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

CD54HC4020-etcTI.pdf