CD74HC04MT

Logic - Gates and Inverters

CD74HC04MT is an integrated circuit of a hex inverter packaged in an 18-pin dual in-line package (DIP18) from Texas Instruments. These devices have six independent gates, each of which performs an inversion operation. The outputs have a Schmitt trigger input stage, making them suitable for CMOS and TTL devices, as well as other low impedance devices.

The main application areas for the CD74HC04MT are logic gate and other digital circuit applications, including logic equations, logic inversion and logic gate functions, where the logic level inputs and outputs fall within the range of ESD protection specified. In addition, the device is suitable for use in low power applications, where very low static power dissipation is required.

The working principle of the CD74HC04MT is straightforward – when its inputs go high, the device takes the positive input and inverts it to a low output. The device contains six independent inverters that can be used in different combinations and configurations, allowing the user to connect them in different ways to generate the desired logic functions.

Output Characteristics

The CD74HC04MT contains six identical open-collector inverters with Schmitt trigger inputs, which are suitable for interfacing to CMOS or TTL logic. Each inverter features an output low voltage of 0.4V minimum and 0.9V maximum, under normal operating conditions. Output saturation voltage is 0.2V maximum, and the output current is 15mA maximum.

Power Supply

The CD74HC04MT requires a single, regulated 5V supply voltage in order to operate and it can draw as low as 0.3mA of current (typical) at 5V. The device has a very low static power dissipation of 0.75mW (typical). It is also capable of being driven with a wide range of power supplies, including batteries and AC line voltages, allowing it to be used in many different situations.

Input Characteristics

The CD74HC04MT has inputs that range from 0V to 5V, with a minimum high level input voltage of 2V, and a maximum low level input voltage of 0.4V (typical). Additionally, the Schmitt trigger input ensures that the device can detect and distinguish ultra-low voltage levels without problem.

Conclusion

The CD74HC04MT is a versatile and highly integrated hex inverter that is capable of driving a wide variety of logic functions. Its low power consumption, wide power supply tolerance, and Schmitt trigger inputs make it an excellent choice for digital circuit applications, whether they are in the industrial, consumer, or automotive markets.