National MM74HCT00N Quad 2 input NAND Gate DIL14

Manufactured by National Semiconductor - DIP14 through hole package

MC74HCT00N

74 HCT series High Speed CMOS - TTL level inputs

The 74HCT00 is a quad 2-input NAND gate. Inputs include clamp diodes. This enables the use of current limiting resistors to interface inputs to voltages in excess of V_CC.