The 74HC04 is identical in pinout to the LS04 and the MC14069. The device inputs are compatible with Standard CMOS outputs; with pullup resistors, they are compatible with LSTTL outputs. The device consists of six three−stage inverters.

FEATUREs
• Output Drive Capability: 10 LSTTL Loads
• Outputs Directly Interface to CMOS, NMOS and TTL
• Operating Voltage Range: 2.0 to 6.0 V
• Low Input Current: 1.0 A
• High Noise Immunity Characteristic of CMOS Devices
• In Compliance With the JEDEC Standard No. 7A Requirements
• ESD Performance: HBM  2000 V; Machine Model  200 V
• Chip Complexity: 36 FETs or 9 Equivalent Gates
• These are Pb−Free Devices