Texas Instruments

SN74S38D

SN74S38D Description

The SN74S38D is a high-performance NAND gate IC designed by Texas Instruments, featuring four independent 2-input NAND gates in a surface-mount package. This device is part of the 74S series, known for its robust performance and reliability in digital logic applications. The SN74S38D operates within a supply voltage range of 4.75V to 5.25V and is specified for an operating temperature range of 0°C to 70°C, making it suitable for a wide range of industrial and commercial environments.

The IC boasts a maximum propagation delay of 9ns at 5V with a maximum capacitive load of 150pF, ensuring fast and efficient signal processing. The input logic levels are defined as 0.8V for low and 2V for high, providing clear and precise signal thresholds. The open collector output feature allows for flexible interfacing with various logic families and pull-up resistor configurations.

SN74S38D Features

• Logic Type: NAND Gate
• Number of Circuits: 4
• Number of Inputs per Circuit: 2
• Operating Temperature: 0°C to 70°C
• Supply Voltage Range: 4.75V to 5.25V
• Max Propagation Delay: 9ns @ 5V, 150pF
• Input Logic Levels: Low (0.8V), High (2V)
• Features: Open Collector
• Package Type: Tube
• Mounting Type: Surface Mount
• Compliance: ROHS3 Compliant, REACH Unaffected
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

SN74S38D Applications

The SN74S38D is ideal for applications requiring high-speed digital logic processing and interfacing. Its open collector outputs make it suitable for driving various types of loads, including LEDs, relays, and other digital circuits. The low propagation delay ensures that it can handle fast signal switching, making it perfect for use in:

• Digital Signal Processing: Efficiently processing and switching digital signals in high-speed systems.
• Control Systems: Implementing logic functions in industrial control systems.
• Communication Interfaces: Driving signals in communication protocols that require open collector outputs.
• Embedded Systems: Providing logic functions in embedded systems where space and power consumption are critical.

Conclusion of SN74S38D

The SN74S38D from Texas Instruments is a versatile and high-performance NAND gate IC that offers significant advantages in digital logic applications. Its fast propagation delay, open collector outputs, and robust operating specifications make it an excellent choice for a variety of industrial and commercial uses. The device's compliance with industry standards such as ROHS3 and REACH ensures that it meets environmental and safety requirements. For designers and engineers looking for a reliable and efficient NAND gate solution, the SN74S38D is a top contender.