描述 Description

The HD74HC93 is a 4-bit ripple type counter consisting of four master/slave flip-flops that are internally connected to provide separate divide-by-two and divide-by-eight sections. Each section has a separate clock input which initiates state changes of the counter on the high-to-low clock transition.

特性 Features

? High Speed Operation: tpd (A to QA) = 13 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)