74AHC125PW,112

Buffers, Drivers, Receivers, Transceivers Overview

The Nexperia 74AHC125PW,112 is a quad buffer and line driver featuring three-state outputs controlled by active LOW output enable inputs (nOE). It operates within a supply voltage range of 2.0 V to 5.5 V and includes overvoltage tolerant inputs up to 5.5 V. The device utilizes Schmitt-trigger action on all inputs for high noise immunity and balanced propagation delays. It is housed in a TSSOP14 package (SOT402-1) with 14 leads and a body width of 4.4 mm. The component is specified for ambient temperatures from -40 °C to +125 °C.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Quad buffer/line driver with three-state outputs
• Overvoltage tolerant inputs up to 5.5 V
• Schmitt-trigger action on all inputs
• CMOS low power dissipation

Buffers, Drivers, Receivers, Transceivers Applications

• Mixed voltage environments requiring level translation
• High noise immunity signal buffering
• Line driving applications

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this part when a quad buffer with three-state control is required for mixed-voltage systems. The AHC variant supports CMOS input levels across a wide 2.0 V to 5.5 V range. Ensure the design accommodates the TSSOP14 thermal characteristics and that the active LOW enable logic aligns with the system control scheme.

Buffers, Drivers, Receivers, Transceivers Part Context

This component belongs to the 74AHC/AHCT125 family of quad buffers. It shares functional similarities with other single-driver variants like the 74AHC1G126 but offers four independent channels in a standard 14-pin package. It is distinct from the AHCT series which uses TTL input levels, whereas this AHC version is optimized for CMOS compatibility.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Direct pin-compatible replacements include the 74AHCT125PW,112 for TTL-level interfaces. Other quad buffers in the same package such as the 74AHC126 may serve as alternatives if inverted enable logic is acceptable.

Buffers, Drivers, Receivers, Transceivers FAQ

How does the output enable input function?

The outputs assume a high-impedance OFF-state when the nOE input is HIGH. When nOE is LOW, the outputs follow the data inputs.

What is the input voltage tolerance?

Inputs are overvoltage tolerant up to 5.5 V, allowing safe interfacing with higher voltage signals even at lower supply voltages.