MC14522B - Presettable 4-Bit Down Counters

Product Overview

Motorola

Part number	MC14522B
Manufacturer	Motorola
File Size	272.84 KB
Description	Presettable 4-Bit Down Counters
Datasheet	MC14522B Datasheet
Additional preview pages of the MC14522B datasheet.

Preset Enable (Pin 3)

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.

A high level on the Inhibit input pre

vents the Clock from decrementing the counter.

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.

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Published: Jul 1, 2005 |