74LS00 Quad 2-input NAND Gates – 7400
74LS Family Logic Gates, Nexperia
A range of NXP standard Logic Gates from the 74LS Family of CMOS Logic ICs. The 74HC Family use silicon gate CMOS technology to achieve operating speeds similar to the LSTTL family but with the low power consumption of standard CMOS integrated circuits.
High-Speed CMOS Logic
Operating Voltage: 2 to 6 V
Compatibility: Input CMOS, Output CMOS