MC14522B - Presettable 4-Bit Down Counters

Description

If Reset is low, a high level on the Preset Enable input asynchronously loads the counter with the programmed values on P0, P1, P2, and P3.

vents the Clock from decrementing the counter.

Features

• 50% VSS tf VDD VSS ANY Q 50% VSS tPHL 50% Figure 7. Figure 8. VALID tr PRESET ENABLE 90% 50% 10% tPHL tPLH PRESET ENABLE “0” 50% tw 50% VSS tf VDD GND ANY P 50% VSS tsu th VDD VDD Figure 9. Figure 10.