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 incremented on the high to low transition (negative edge) of the Clock input, and each has an independent clear input. When clear is set high all four bits of each Counter are set to a low level. This enables count truncation and allows the implementation of divide-by-N Counter configurations. By Renesas Technology
HD74HC390 's PackagesHD74HC390 's pdf datasheet

HD74HC390 Pinout, Pinouts
HD74HC390 pinout,Pin out
This is one package pinout of HD74HC390,If you need more pinouts please download HD74HC390's pdf datasheet.

HD74HC390 circuits will be updated soon..., now you can download the pdf datasheet to check the circuits!

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