Texas Instruments

SN7438N

SN7438N Description

The SN7438N is a high-performance NAND gate IC designed for a wide range of digital logic applications. Manufactured by Texas Instruments, this 14-pin DIP package features four independent 2-input NAND gates with open collector outputs. The SN7438N operates within a supply voltage range of 4.75V to 5.25V and is capable of handling an operating temperature range from 0°C to 70°C. Each NAND gate has a maximum propagation delay of 22ns at 5V and a maximum capacitive load of 45pF, ensuring fast and reliable switching times. The input logic levels are defined as 0.8V for low and 2V for high, providing clear and precise signal thresholds. The SN7438N is compliant with RoHS3 standards and is unaffected by REACH regulations, making it suitable for environmentally conscious applications. The device is housed in a through-hole package, making it easy to integrate into various circuit designs.

SN7438N Features

• Logic Type: NAND Gate
• Number of Circuits: 4
• Number of Inputs per Gate: 2
• Operating Temperature Range: 0°C to 70°C
• Supply Voltage Range: 4.75V to 5.25V
• Max Propagation Delay: 22ns @ 5V, 45pF
• Input Logic Levels: Low (0.8V), High (2V)
• Mounting Type: Through Hole
• Package Type: Tube
• Features: Open Collector
• Compliance: ROHS3 Compliant, REACH Unaffected

SN7438N Applications

The SN7438N is ideal for a variety of digital logic applications where high-speed switching and reliable performance are required. Its open collector outputs make it suitable for interfacing with different voltage levels and driving various types of loads. Some specific use cases include:

• Digital Logic Circuits: The SN7438N can be used to build complex digital circuits, such as decoders, multiplexers, and memory address decoding.
• Microcontroller Interfaces: The open collector outputs allow for easy interfacing with microcontrollers and other digital devices, enabling flexible and robust system designs.
• Signal Processing: The fast propagation delay and reliable switching characteristics make the SN7438N suitable for signal processing applications where timing accuracy is critical.
• Industrial Control Systems: The wide operating temperature range and robust performance make the SN7438N ideal for use in industrial control systems and automation applications.

Conclusion of SN7438N

The SN7438N is a versatile and reliable NAND gate IC that offers high-speed performance and flexible design options. Its open collector outputs, fast propagation delay, and wide operating temperature range make it suitable for a wide range of digital logic applications. The device's compliance with RoHS3 and REACH regulations ensures that it meets the highest environmental standards. Whether used in digital circuits, microcontroller interfaces, signal processing, or industrial control systems, the SN7438N provides a robust and reliable solution for engineers and designers in the electronics industry.