7413 Dual 4-Input NAND Schmitt Trigger IC (DIP)

Overview

The 7413 Dual 4-Input NAND Schmitt Trigger IC is a reliable TTL logic device designed for noise-sensitive digital applications. Each IC contains two independent 4-input NAND gates with Schmitt-trigger action on the inputs, providing hysteresis to reject slow or noisy input signals and deliver clean digital outputs. The device is supplied in a standard DIP-14 package for convenient prototyping and PCB integration.

Key Features

• Two independent 4-input NAND Schmitt Trigger gates
• Schmitt-trigger inputs for improved noise immunity and stable switching
• TTL compatible logic levels – designed for 5V systems
• Fast propagation delay for responsive logic operations
• Low power consumption for efficient operation
• Standard 14-pin DIP package for breadboards and prototype boards

Specifications

• IC Number: 7413
• Logic Type: Dual 4-Input NAND Schmitt Trigger
• Number of Gates: 2
• Inputs per Gate: 4
• Operating Voltage (Vcc): 4.75V to 5.25V (typical 5V)
• Input Current (High): 40 µA (Max)
• Input Current (Low): -1.6 mA (Max)
• Output Current (High): -0.4 mA
• Output Current (Low): 16 mA
• Propagation Delay: 20 ns (Typical)
• Package Type: DIP-14 (Dual Inline Package)
• Operating Temperature Range: 0°C to +70°C

Applications

• Noise filtering and signal conditioning
• Waveform shaping and square-wave generation
• Digital pulse detection and cleaning
• Oscillator and timer circuits
• Logic control and switching systems
• Educational labs, prototypes, and embedded logic interfaces

Typical Circuits and Usage Tips

• Use the Schmitt-trigger inputs to clean noisy sensor outputs before feeding into microcontrollers.
• Implement simple relaxation oscillators by combining a resistor-capacitor network with a NAND gate.
• Keep signal traces short and provide a decoupling capacitor close to Vcc and ground to minimize supply noise.
• When interfacing with other logic families, verify input and output current requirements and add pull-ups if required.

Package and Mounting

The standard 14-pin DIP package makes the 7413 easy to place on breadboards, prototype PCBs, and through-hole designs. Pin-compatible replacements and equivalents are widely available for hobbyist and production use.

Ordering and Notes

• Typical operating supply is 5V; ensure correct supply voltage to maintain TTL compatibility.
• Operating temperature 0°C to +70°C unless specified otherwise for industrial grades.
• Images are for illustration purposes only.