74ABT125D,623

Buffers, Drivers, Receivers, Transceivers Overview

The 74ABT125D,623 is a quad buffer and line driver featuring 3-state outputs controlled by active LOW output enable inputs (nOE). Constructed using BiCMOS technology, it operates within a supply voltage range of 4.5 V to 5.5 V. The device provides high-speed performance with propagation delays up to 4.9 ns at 5.0 V. It supports direct interfacing with TTL levels and includes IOFF circuitry for partial power-down applications to prevent backflow current. The SO14 package version is specified for ambient temperatures between -40 °C and +85 °C.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• BiCMOS high-speed operation with strong output drive capabilities
• IOFF circuitry enables partial power-down mode to prevent damaging backflow currents
• Power-up 3-state functionality ensures safe initialization
• Inputs remain disabled during 3-state mode

Buffers, Drivers, Receivers, Transceivers Applications

• Quad bus interface systems
• Partial power-down applications requiring backflow protection
• Live insertion and extraction permitted environments

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix matches the required package type, as the 74ABT125 family includes multiple options such as TSSOP14 and DHVQFN14. Confirm that the temperature range and electrical specifications align with the design requirements before finalizing procurement. Ensure compliance with export control regulations if applicable.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when a quad buffer with 3-state outputs is required for 5 V logic systems. The BiCMOS technology offers higher speed and drive strength compared to standard CMOS alternatives. Consider the IOFF feature if the application involves hot-swapping or partial power-down scenarios to protect downstream components from backflow currents.

Buffers, Drivers, Receivers, Transceivers Part Context

The 74ABT125 belongs to Nexperia's ABT series, which utilizes BiCMOS technology for high-speed performance. This series is designed for applications requiring fast switching speeds and robust output drive capabilities in standard 5 V logic environments. The device serves as a buffer or line driver with tri-state control.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Direct substitutes include other 74ABT125 variants with different packages, such as 74ABT125PW or 74ABT125BQ. Verify pin compatibility and electrical characteristics when replacing with devices from other manufacturers offering equivalent quad 3-state buffers.