Datasheet Details
Part number:
74HC423BQ, 74HC423
Manufacturer:
File Size:
740.64 KB
Description:
Dual retriggerable monostable multivibrator.
Note:
This datasheet PDF includes multiple part numbers: 74HC423BQ, 74HC423.
Please refer to the document for exact specifications by model.
74HC423BQ, 74HC423, Dual retriggerable monostable multivibrator
The 74HC423 is a dual retriggerable monostable multivibrator with output pulse width control by two methods.
The basic pulse time is programmed by selection of an external resistor (REXT) and capacitor (CEXT).
Once triggered, the basic output pulse width may be extended by retriggering (nA) or (nB).
74HC423BQ Features
* DC triggered from active HIGH or active LOW inputs
* Retriggerable for very long pulses up to 100 % duty factor
* Direct reset terminates output pulse
* Schmitt-trigger action on all inputs except for the reset input
* Complies with JEDEC standard no. 7A
* Input levels:
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