Texas Instruments SN74HCT14N Hex Schmitt Inverter, DIP-14

The Texas Instruments SN74HCT14N is a high-speed CMOS hex Schmitt-trigger inverter integrated circuit. Housed in a 14-pin DIP package, it performs the Boolean logic function Y = A (inversion) with six independent channels. A key feature is its Schmitt-trigger inputs, which provide excellent noise immunity and clean signal conditioning, making it ideal for interfacing with slow or noisy input signals.

This IC offers a balanced performance of speed and low power consumption, with a typical propagation delay of 18ns and a maximum supply current (ICC) of just 20µA. It provides a robust output drive capability of 4mA at 5V, allowing it to drive up to 10 low-power Schottky TTL (LSTTL) loads. The inputs are TTL-voltage compatible, facilitating easy integration into mixed-logic systems.

Its wide operating voltage range of 4.5V to 5.5V and an extended industrial temperature range from -40°C to +85°C ensure reliable operation in demanding environments. This makes it a versatile component for a wide array of digital logic applications where signal integrity and power efficiency are critical.

Key Features & Applications

• Schmitt-Trigger Inputs: For improved noise rejection and waveform shaping.
• Low Power Consumption: Ideal for battery-powered or energy-sensitive designs.
• High Noise Immunity: Ensures stable operation in electrically noisy industrial settings.
• TTL-Compatible Inputs: Simplifies interfacing with TTL logic families.
• Wide Operating Temperature: Suited for industrial and automotive applications.

This reliable inverter is a fundamental building block for digital systems, commonly used in oscillator circuits, pulse shapers, debounce circuits for switches, and as a general-purpose logic inverter.