HD74HC4020中文资料瑞萨数据手册PDF规格书

描述 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.

特性 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)