74ABT125D,602

Buffers, Drivers, Receivers, Transceivers Overview

The Nexperia 74ABT125D,602 is a quad buffer and line driver featuring 3-state outputs controlled by active-low output enable inputs (nOE). It utilizes BiCMOS technology to provide high-speed performance and robust output drive capabilities. The device supports a supply voltage range of 4.5 V to 5.5 V and operates within an ambient temperature range of -40 °C to +85 °C. It includes IOFF circuitry for partial power-down applications, preventing backflow current when powered down. The component is housed in a 14-lead SO plastic small outline package (SOT108-1) with a body width of 3.9 mm.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Features IOFF circuitry that disables outputs to prevent damaging backflow current during partial power-down conditions.
• Provides direct interface compatibility with TTL logic levels while maintaining CMOS input switching characteristics.
• Supports live insertion and extraction operations through power-up 3-state functionality.

Buffers, Drivers, Receivers, Transceivers Applications

• Partial power-down bus interface systems requiring isolation of powered-down components.
• High-speed data buffering and line driving in 5 V digital logic circuits.
• Bus driver applications necessitating live insertion and extraction capabilities.

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix matches the required package type, as the 74ABT125 series is available in multiple configurations including TSSOP and DHVQFN. Confirm the temperature grade corresponds to the industrial range (-40 °C to +85 °C) specified for the 'D' variant. Ensure design compliance with the absolute maximum ratings regarding supply voltage and output clamping currents to maintain device reliability.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component for designs requiring high-speed buffering with strong drive capability at 5 V. The BiCMOS technology offers superior speed compared to standard CMOS alternatives. Consider the IOFF feature if the system architecture involves hot-swapping or partial power management. Verify pinout compatibility with existing PCB layouts, as the SO14 package has specific lead spacing and body dimensions.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the 74ABT series of advanced BiCMOS logic devices manufactured by Nexperia. The series is designed for high-performance digital applications requiring fast propagation delays and significant output drive strength. The 74ABT125 specifically functions as a non-inverting quad buffer with 3-state control, distinguishing it from inverters or drivers without tri-state outputs within the same logic family.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Direct substitutes include other 74ABT125 variants such as the 74ABT125PW (TSSOP14) or 74ABT125BQ (DHVQFN14), provided the package footprint is compatible. Cross-family replacements like 74F125 or 74ACT125 may fit electrically but differ in speed and drive characteristics.