HD74HC4020 데이터 시트보기 (PDF) - Hitachi -> Renesas Electronics

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HD74HC4020

14-stage Binary Counter

Hitachi -> Renesas Electronics 

HD74HC4020

14-stage Binary Counter

Description

The HD74HC4020 is a 14 stage counter. This device is incremented on the falling edge (negative

transition) of the input clock, and all its output is reset to a low level by applying a logical high on its reset

input.

Features

• High Speed Operation: tpd (Clock to Q1) = 14 ns typ (CL = 50 pF)

• High Output Current: Fanout of 10 LSTTL Loads

• Wide Operating Voltage: VCC = 2 to 6 V

• Low Input Current: 1 µA max

• Low Quiescent Supply Current: ICC (static) = 4 µA max (Ta = 25°C)

Function Table

Clock

X

Reset

L

L

H

Outputs State

No change

Advance to next state

All output are low

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