Texas Instruments

SN7438NSR

SN7438NSR Description

The SN7438NSR is a high-performance NAND gate IC designed for a wide range of digital logic applications. Manufactured by Texas Instruments, this device is part of the 7400 series and features four independent 2-input NAND gates with open collector outputs. The SN7438NSR operates within a supply voltage range of 4.75V to 5.25V and is optimized for low power consumption, with a maximum quiescent current of 8.5 mA. This IC is designed for surface mount applications and comes in a 14-pin small outline (SO) package, making it suitable for compact and high-density circuit designs.

SN7438NSR Features

• Logic Type: NAND Gate
• Number of Circuits: 4
• Number of Inputs per Circuit: 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) and High (2V)
• Output Type: Open Collector
• Mounting Type: Surface Mount
• Package Type: Tape & Reel (TR)
• Moisture Sensitivity Level (MSL): 1 (Unlimited)
• Compliance: ROHS3 Compliant, REACH Unaffected

The SN7438NSR's open collector output allows for flexibility in circuit design, enabling the use of pull-up resistors to achieve desired voltage levels. This feature is particularly advantageous in applications requiring multiple logic levels or interfacing with different types of digital circuits. The low propagation delay ensures fast signal processing, making it suitable for high-speed digital systems.

SN7438NSR Applications

The SN7438NSR is ideal for a variety of applications where compact size, high performance, and reliability are critical. Some specific use cases include:

• Digital Logic Circuits: The SN7438NSR can be used to build complex digital circuits, such as decoders, multiplexers, and control logic systems.
• Microcontroller Interfaces: Its open collector outputs make it suitable for interfacing with microcontrollers, providing flexibility in voltage level translation.
• Communication Systems: The low propagation delay and high-speed performance make it ideal for use in communication systems requiring fast signal processing.
• Consumer Electronics: The compact surface mount package and wide operating temperature range make it suitable for consumer electronics applications, such as smartphones, tablets, and other portable devices.

Conclusion of SN7438NSR

The SN7438NSR is a versatile and high-performance NAND gate IC that offers significant advantages over similar models. Its open collector outputs, low propagation delay, and compact surface mount package make it an excellent choice for a wide range of digital logic applications. The device's compliance with industry standards, such as ROHS3 and REACH, ensures its suitability for modern electronics manufacturing. Whether used in digital circuits, microcontroller interfaces, or communication systems, the SN7438NSR provides reliable performance and design flexibility, making it a valuable component for electronics engineers and designers.