Data sheet acquired from Harris Semiconductor SCHS.
Texas Instruments
CD54HCT123 - High-Speed CMOS Logic Dual Retriggerable Monostable Multivibrators
Data sheet acquired from Harris Semiconductor SCHS142F September 1997 - Revised October 2003 CD54/74HC123, CD54/74HCT123, CD74HC423, CD74HCT423 High-.