74AC125TTR

Buffers, Drivers, Receivers, Transceivers Overview

The STMicroelectronics 74AC125TTR is a quad bus buffer with three-state outputs, manufactured using advanced sub-micron silicon gate and double-layer metal wiring C2MOS technology. It operates within a supply voltage range of 2V to 6V. The device features high-speed performance with a typical propagation delay of 4ns at VCC = 5V. It provides symmetrical output impedance with minimum drive currents of 24mA for both high and low states. The component includes protection circuits against static discharge, offering 2kV ESD immunity.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Advanced CMOS fabrication utilizing sub-micron silicon gate and double-layer metal wiring technology
• High noise immunity with input thresholds defined as a percentage of the supply voltage
• Capable of driving 50-ohm transmission lines with balanced propagation delays
• Integrated protection circuits providing immunity against static discharge and transient excess voltage

Buffers, Drivers, Receivers, Transceivers Applications

• High-speed data buffering in digital systems
• Driving 50-ohm transmission lines
• Bus-oriented memory and signal switching applications

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering code matches the required package type, as the TTR suffix indicates tape and reel packaging. Confirm that the operating conditions align with the recommended DC specifications, particularly regarding input voltage levels relative to the supply voltage. Ensure compliance with the absolute maximum ratings to prevent device damage during installation and operation.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when a quad bus buffer with three-state control is required for high-speed applications. It is suitable for environments needing 5V tolerant interfaces or operation across a wide voltage range from 2V to 6V. Consider its symmetrical output impedance and low power dissipation characteristics for efficient system design.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the 74AC series of logic devices, which are designed for high-speed operations. It is functionally compatible with the standard 74 series 125 pinout but offers improved speed and lower power consumption due to its CMOS construction. The TSSOP-14 package allows for surface-mount assembly in compact electronic designs.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Check for direct pin-compatible alternatives from other manufacturers that meet the same AC electrical characteristics and operating voltage ranges. Verify that any substitute maintains the three-state functionality and high noise immunity requirements of the original design.