SN74L00N

Low-Power Quadruple 2-Input Positive-NAND Gates (SN74L00N): A vintage, low-power bipolar TTL digital logic IC containing four independent 2-input NAND gates. It operates from a 5V supply, consuming only 1mW per gate at the expense of slower propagation delay times (approx. 33ns) compared to standard 7400 series logic, housed in a standard 14-pin plastic DIP package. Manufactured by Texas Instruments.[1, 2, 3]