Update: 29 September, 2023
The M54/74HC423/423A are high speed CMOS MONOSTABLE multivibrators fabricated with silicon gate C2MOS technology. They achieve the high speed operation similar to equivalent LSTTL while maintaining the CMOS low power dissipation. There are two trigger inputs, A INPUT (negative edge) and B INPUT (positive edge). These inputs are valid for rising/falling signals, (tr – tf – 1 sec). After triggering the output maintains the MONOSTABLE state for the time period determined by the external resistor Rx and capacitor Cx. Two different pulse width constant are available: K ≅ 0.46 for HC423 K ≅ 1 for HC423A. Taking CLR low breaks this MONOSTABLE STATE. If the next trigger pulse occurs during the MONOSTABLEp
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MD5 Checksum: 81426EC35778078EDCA54DC32F431C88
Publication date: 10 May, 2012
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PDF Link: SGS-THOMSON M54HC423/423A M74HC423/423A handbook PDF