HEF4753 查看數據表（PDF） - Philips Electronics

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产品描述 (功能)

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HEF4753

Universal timer module

Philips Electronics 

Philips Semiconductors

Universal timer module

4. Delayed HIGH to LOW edge mode; see note 2. (LFC = HIGH; Y = LOW; Z = HIGH)

Product specification

HEF4753B

LSI

A B C D E F G H W X LFC Y Z

H L H HHH H H L L H L H

Fig.6 Timing diagram for delayed HIGH to LOW edge mode; for t1 to t5 see Fig.5.

5. Transient pulse suppression and pulse delaying mode; see note 2. (LFC = Y = Z = HIGH)

In this mode the circuit is working as a digital low-pass filter. An undisturbed pulse will only be delayed (see Fig.7).

A B C D E F G H W X LFC Y Z

L L H H H H H H L L H HH

Fig.7 Timing diagram for transient pulse suppression and pulse delaying mode; for t1, t2 and t3 see Fig.5.

January 1995

6

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