The 74LV393 is a low-voltage Si-gate CMOS device and is pin and function compatible with 74HC/HCT393. The 74LV393 is a dual 4-bit binary ripple counter with separate clocks (1CP, 2CP) and master reset ...
These two circuits provide ripple rejection for unregulated power supplies to audio amplifier applications and can follow a declining voltage source (such as a battery) to low values without dropout.
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