SN74HC04N datasheet, pdf & pinout

NOT Gate hex inverter integrated circuit SN74HC04N demonstration and voltage measurements

SN74HC04N

The SN74HC04N is a common logic IC containing six independent inverters (NOT gates). Its primary function is to invert input signals—outputting a low level when the input is high, and a high level when the input is low. Widely used for signal inversion, level shifting, oscillation circuits, and simple delay circuits, the chip offers stable performance and easy integration with microcontrollers, Arduino, and similar systems.

SN74HC04N pinout diagram

SN74HC04N equivalent inverter ic

When selecting an alternative for SN74HC04N, pay careful attention to logic family compatibility, power supply requirements, and propagation delay differences. For general replacements, the CD74HC04E and SN74AC04N are excellent choices with similar speed and compatibility. The SN74LS04N, based on TTL technology, requires a fixed 5V supply, and CD4069UBE operates across a wider voltage range but is significantly slower. Always confirm your specific circuit requirements before substituting these chips.

SN74HC04N inverter gate circuit

SN74HC04N is a hex inverter IC, which means it has six inverter gates integrated. Each gate inverts the logic state of its input signal at the output:

• When the input is logic high, the output is logic low.

• When the input is logic low, the output is logic high.

Simple Circuit Example:

• The input pin is connected through a resistor to a switch or a sensor output.

• The output pin is connected to an LED or subsequent circuitry, providing an inverted logic indication or controlling a driven load.

SN74HC04N logic inverter application

The SN74HC04N is a super common chip, and you’ll see it all the time if you’re tinkering with electronics projects. It’s perfect when you need to invert digital signals quickly. You can even use it to easily drive little LED indicator lights. In regular circuit designs, whenever you need to reshape or flip signals, it’s your go-to chip. Plus, it’s handy for building oscillator circuits and creating basic signal generators. And if you’re dealing with mismatched logic voltage levels between devices, it works great as a buffer to solve that too. Basically, it’s one of those versatile chips worth keeping around.

SN74HC04N arduino logic circuit

The SN74HC04N can be used together with an Arduino in various applications, including:

Signal inversion or reversal:

Inverting Arduino output signals to drive devices with specific requirements;

Protecting Arduino interfaces by ensuring logic compatibility and isolation.

Typical Wiring:

Connect Arduino digital output pins to the SN74HC04N input pins.

Connect the SN74HC04N output pins to downstream devices or loads.