HD74HC390 Datasheet - Renesas

HD74HC390 Dual Decade Counters

The HD74HC390 incorporate dual decade counters, each composed of a divide-by-two and a divide-by-five counter. The divide-by-two and divide-by-five counters can be cascaded to form dual decade, dual bi-quinary, or various combinations up to a single divide-by-100 counter. The HD74HC390 is incremente.

HD74HC390 Features

* High Speed Operation: tpd (Clock A to QA) = 11 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)

HD74HC390-Renesas.pdf