74LCX125TTR

Overview

The 74LCX125TTR is a low-voltage CMOS quad bus buffer manufactured by STMicroelectronics, featuring 5 V tolerant inputs and outputs. It operates within a supply voltage range of 2.0 V to 3.6 V. The device provides high-speed performance with a maximum propagation delay of 5.2 ns at 3 V. It includes power-down protection on inputs and outputs, symmetrical output impedance with minimum drive currents of 24 mA at 3 V, and balanced propagation delays. The component is housed in a TSSOP14 package and supports an operating temperature range from -40 °C to +85 °C.

Feature Summary

• Features 5 V tolerant inputs and outputs for interfacing with 5 V signal environments.
• Includes power-down protection on all inputs and outputs.
• Provides symmetrical output impedance with guaranteed PCI bus levels.
• Offers robust ESD immunity against static discharge.

Applications

• Automotive systems
• Industrial equipment
• Computer applications
• Consumer electronics

Procurement Notes

Verify the specific ordering code matches the required package type and temperature range. Confirm that the tape and reel packaging aligns with automated assembly requirements. Ensure compatibility with existing design constraints regarding pinout and electrical specifications before finalizing procurement decisions.

Selection Notes

Select this component for low-power and high-speed 3.3 V applications requiring interface to 5 V signals. It offers speed performance comparable to the 5 V AC/ACT family but with lower power consumption. Consider its pin and function compatibility with standard 74 series 125 devices for direct replacement or integration into existing designs.

Part Context

This device belongs to the 74LCX series of low-voltage CMOS logic components. It utilizes sub-micron silicon gate and double-layer metal wiring C2MOS technology. The product is currently in full production status according to the provided datasheet documentation.

Replacement Considerations

The datasheet does not list specific public confirmed substitute part numbers. Verify functional equivalence with other 74LCX125 variants from different manufacturers if sourcing alternatives are necessary.

FAQ

How does the 74LCX125 handle power-down conditions?

The device features power-down protection on both inputs and outputs, ensuring safe operation when the supply voltage is removed.

What is the maximum propagation delay at 3 V?

The maximum propagation delay (tPD) is 5.2 ns when the supply voltage (VCC) is 3 V.