Overview
HD74HC390 is listed in the Logic IC category. Available datasheets include documents from Hitachi Semiconductor, Renesas Technology Corp. DigiCamel provides a local PDF for online reference.
Summary
Dual Decade Counters
Description
The HD74HC390 incorporate dual decade counters, each composed of a divide-by-two and a divide-byfive counter. The divide-by-two and divide-by-five counters can be cascaded to form dual decade, dual biquinary, or various combinations up to a single divide-by-100 counter.
Source title
HD74HC390 Datasheet(PDF) - Hitachi Semiconductor