Standard logic ICs using CMOS technology to achieve operating speeds similar to LSTTL with the low power consumption of CMOS integrated circuits. The 74HC4000 logic family is functionally and pin-compatible with the standard LS logic family, and all devices have the ability to drive 10 LSTTL loads.
High-Speed CMOS Logic Operating Voltage: 2 to 6 V Compatibility: Input CMOS, Output CMOS