BUY TC4001BP https://www.utsource.net/itm/p/1274673.html
IC 4000/14000/40000 SERIES, QUAD 2-INPUT NOR GATE, PDIP14, 0.300 INCH, 2.54 MM PITCH, LEAD FREE, PLASTIC, DIP-14, Gate
Description: The TC4001BP is a dual 4-input NAND gate with open-drain outputs from Toshiba America Electronic Components. It is a 14-pin DIP package. Features: Low power consumption High noise immunity High speed operation High output current capability Open drain outputs TTL compatible inputs Low input current Wide operating voltage range Applications: The TC4001BP is suitable for applications such as logic circuits, memory circuits, and interface circuits. It is also used in automotive and industrial applications. (For reference only)