ON Semiconductor 74LCX125SJ Low Voltage Quad Buffer with 5V Tolerant Inputs and Outputs

The ON Semiconductor 74LCX125SJ is a high-performance, low-voltage quad buffer designed to facilitate interfacing between 3.3V and 5V logic levels in mixed-voltage systems. This device belongs to the LCX family, which is renowned for its low power consumption and high drive capability, making it an ideal choice for battery-operated and power-sensitive applications.

Each buffer of the 74LCX125SJ has a separate output enable pin, which allows for greater flexibility in control and bus management. This feature makes it possible to place output ports into a high-impedance state, thus preventing back-driving and ensuring proper bus arbitration. The 5V tolerant inputs and outputs allow the device to be used in environments where the voltage levels can swing above the nominal operating voltage without causing damage or creating logic errors.

The device is fabricated with an advanced CMOS technology to achieve high-speed operation while maintaining CMOS low-power dissipation. The 74LCX125SJ can operate at a voltage range of 2.3V to 3.6V, with a 5V tolerant interface capability at both the input and output sides. This makes it compatible with TTL levels while providing a significant reduction in power consumption when compared to traditional TTL levels.

The ON Semiconductor 74LCX125SJ comes in a slim SOIC package, which is compact and suitable for space-constrained applications. Its performance is guaranteed over a wide temperature range, typically from -40°C to +85°C, ensuring reliable operation across diverse environmental conditions.

Key features of the 74LCX125SJ include:

• Low voltage operation (2.3V – 3.6V)
• 5V tolerant inputs and outputs for interfacing with 5V logic
• High drive capability (+24mA/-24mA)
• Individual output enable functionality for each buffer
• Power-off high impedance inputs and outputs
• Supports live insertion and withdrawal (partial power-down)
• SOIC package for space-saving applications
• Lead-free and RoHS compliant

Overall, the 74LCX125SJ from ON Semiconductor is a robust and versatile solution for mixed-voltage digital systems, offering reliable performance and ease of use in a wide range of applications, including telecommunications, computing, and industrial controls.