Nand gate transistor, 74HC High-speed CMOS circuitry, 74 series ic pin

  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-8281198