Texas Instruments

SN74LS136DR

SN74LS136DR Description

The SN74LS136DR from Texas Instruments is a high-performance quad 2-input XOR (Exclusive OR) gate integrated circuit, designed for surface-mount applications in the 74LS series. Packaged in a 14-pin SOIC and supplied in Tape & Reel (TR), this IC operates within a 4.75V to 5.25V range, making it ideal for 5V TTL logic systems. With a maximum propagation delay of 30ns at 5V and 15pF load, it ensures reliable high-speed logic operations. The device features open-collector outputs, allowing flexible wired-OR configurations and interfacing with higher-voltage systems.

SN74LS136DR Features

• Logic Type: Quad 2-input XOR gate with open-collector outputs for versatile signal combining.
• High-Speed Performance: 30ns propagation delay ensures efficient logic processing.
• Wide Operating Voltage: 4.75V–5.25V compatibility with standard TTL levels.
• Robust Input/Output Levels: 0.8V (Low) and 2V (High) thresholds for noise immunity.
• Surface-Mount Design: 14-SOIC package optimizes PCB space in compact designs.
• Environmental Compliance: ROHS3 and REACH compliant, with MSL 1 (Unlimited) moisture sensitivity.
• Temperature Range: Operates reliably from 0°C to 70°C, suitable for industrial and consumer applications.

SN74LS136DR Applications

This IC excels in digital systems requiring XOR logic, such as:

• Error detection and correction circuits (e.g., parity generators/checkers).
• Arithmetic logic units (ALUs) and binary adders.
• Signal conditioning and phase comparators in communication systems.
• Wired-OR bus interfaces due to open-collector outputs.
• Industrial control systems where noise immunity and logic integrity are critical.

Conclusion of SN74LS136DR

The SN74LS136DR is a versatile, high-speed XOR gate IC offering open-collector flexibility, TTL compatibility, and reliable performance in a compact SOIC package. Its low propagation delay, robust logic levels, and compliance with environmental standards make it a preferred choice for digital logic design, communication systems, and industrial automation. Engineers benefit from its ease of integration and wired-OR capability, distinguishing it from standard push-pull output logic gates.