The MM74HC02M is a quad 2-input NOR gate device manufactured by ON Semiconductor. It is a high-speed CMOS logic device featuring high noise immunity, low power consumption and wide supply voltage range. The device has two individual two-input NOR gates with independent gate and output levels, and a common strobe. The gate and output levels of this device are CMOS, meaning they are compatible with both TTL and CMOS logic systems, making it highly versatile. The chip operates over a wide supply voltage range of 2.0V to 6.0V and has a high noise immunity of 60% VCC. It is also available in both surface mount and through-hole packages.