Timing Solutions Clocks, Dual Gate, Quad Gate, Single Gate, 74 series chip

 74HC Series 6 V Dual Retriggerable Monostable Multivibrator with Reset - TSSOP16

https://www.futureelectronics.com/p/semiconductors--logic--74-series--a-hc-t/74hc123pw-118-nexperia-5161229