MC74HC390 Description
MC74HC390 Dual 4−Stage Binary Ripple Counter with ÷ 2 and ÷ 5 Sections High−Performance Silicon−Gate CMOS The MC54/74HC390 is identical in pinout to the LS390. The device inputs are patible with standard CMOS outputs; with pullup resistors, they are patible with LSTTL outputs.