Update: 30 September, 2023
The 74HC/HCT123 are high-speed Si-gate CMOS devices and are pin compatible with low power Schottky TTL (LSTTL). They are specified in compliance with JEDEC standard no. 7A. The 74HC/HCT123 are dual retriggerable monostable multivibrators with output pulse width control by three methods. The basic pulse time is programmed by selection of an external resistor (REXT) and capacitor (CEXT). The external resistor and capacitor are normally connected as shown in Fig.6. Once triggered, the basic output pulse width may be extended by retriggering the gated active LOW-going edge input (nA) or the active HIGH-going edge input (A).
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MD5 Checksum: 49B8640B0DD6C547FA017FCD4CF9182F
Publication date: 02 July, 2012
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PDF Link: philips 74HC/HCT123 Dual retriggerable monostable multivibrator with reset handbook (2) PDF