BUY 7410N https://www.utsource.net/itm/p/1743067.html

Description: Quad 2-Input NAND Gate Features: - High-speed performance - Low power consumption - Inputs and outputs are fully compatible with TTL levels - Outputs can drive up to 10 LS-TTL loads - Outputs source/sink up to 24 mA - Inputs accept voltages up to 7V Applications: - Logic gates - Flip-flops - Counters - Multiplexers - Decoders - Data selectors/multiplexers - Address decoding - Bus drivers (For reference only)