HD74LV393A Datasheet (Hitachi Semiconductor)

HD74LV393A, Dual 4-bit Binary Counters

The HD74LV393A contain two 4-bit ripple carry binary counters, which can be cascaded to create a single divide-by-256 counter.

The HD74LV393A 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

HD74LV393A Features

* VCC = 2.0 V to 5.5 V operation All inputs VIH (Max.) = 5.5 V (@VCC = 0 V to 5.5 V) All outputs VO (Max.) = 5.5 V (@VCC = 0 V) Typical VOL ground bounce < 0.8 V (@VCC = 3.3 V, Ta = 25°C) Typical VOH undershoot > 2.3 V (@VCC = 3.3 V, Ta = 25°