74HC Series Logic
- ST M74HC123B1R, This ST 74HC123 dual tetriggerable monostable multivibrator IC is available in a DIL-16 package. A part of the 74HC range. The M74HC123 is a high speed CMOS dual retriggerable monostable multivibrator. ST M74HC123B1R Dual Monostable Multivibrator