STMicroelectronics

74LCX125TTR  

Buffers, Drivers, Receivers, Transceivers

74LCX125TTR Description

The 74LCX125TTR is a quad non-inverting buffer/line driver from STMicroelectronics, designed for low-voltage (2V to 3.6V) digital systems. Packaged in a 14-pin TSSOP and supplied in Tape & Reel (TR), this device is optimized for high-speed, low-power applications. It features 4 independent buffers, each with 1-bit handling capability, making it ideal for signal conditioning and isolation in mixed-voltage environments. With 24mA symmetrical drive strength (output high/low), it ensures robust signal integrity while minimizing power consumption.

74LCX125TTR Features

• Low-Voltage Operation: Supports 2V to 3.6V supply range, compatible with modern low-power logic families.
• High Drive Capability: 24mA output current (both sourcing and sinking) for driving heavily loaded buses.
• Low Power Consumption: Optimized for energy-efficient designs, reducing overall system power dissipation.
• 3-State Outputs: Allows multiple devices to share a common bus without contention.
• RoHS3 & REACH Compliant: Environmentally friendly and suitable for global markets.
• Surface-Mount (TSSOP) Packaging: Compact footprint ideal for space-constrained PCB designs.
• Moisture Sensitivity Level (MSL) 3: Suitable for industrial and consumer electronics with proper handling.

74LCX125TTR Applications

• Bus Buffering/Isolation: Used in I²C, SPI, and UART interfaces to prevent signal degradation.
• Mixed-Voltage Systems: Bridges 3.3V and 2.5V logic domains in embedded designs.
• Portable Electronics: Ideal for battery-powered devices due to low-voltage operation.
• Automotive & Industrial Control: Provides noise immunity and signal conditioning in harsh environments.
• Memory/Peripheral Interfaces: Enhances signal integrity in DDR, Flash, and FPGA applications.

Conclusion of 74LCX125TTR

The 74LCX125TTR is a versatile, high-performance buffer solution for modern low-voltage digital systems. Its symmetrical drive strength, 3-state outputs, and compact packaging make it superior to traditional buffers in power-sensitive and space-constrained applications. While marked as obsolete, it remains a reliable choice for legacy designs requiring robust signal conditioning. Engineers should consider alternative active models from the 74LCX series for new developments.

74LCX125TTR Documents

Download datasheets and manufacturer documentation for 74LCX125TTR

Datasheets :

74LCX125      

HTML Datasheet :

74LCX125