BUY 74F00 https://www.utsource.net/itm/p/11668147.html

Package: SOP14 Manufacturer: FSC Description: The 74F00 is a Quad 2-Input NAND Gate from Fairchild Semiconductor. Features: Low power Schottky TTL (LSTTL) Outputs source/sink 24 mA Fanout of 2 LSTTL loads Power dissipation 500 mW Operating temperature range -55°C to 125°C Input clamping diodes Inputs compatible with standard CMOS outputs Applications: Logic gating Data storage Signal buffering Data transmission Data conversion (For reference only)