TC74HC123AP/AF/AFN TOSHIBA CMOS Digital Integrated.
TC74HC123AFN - DUAL RETRIGGERABLE MONOSTABLE MULTIVIBRATOR
TC74HC123AP/AF/AFN TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic TC74HC123AP,TC74HC123AF,TC74HC123AFN Dual Retriggerable Monostable Mult.