74LVC125ADB,112

Overview

The Nexperia 74LVC125ADB,112 is a quad buffer and line driver featuring 3-state outputs controlled by active LOW enable inputs (nOE). It operates within a supply voltage range of 1.2 V to 3.6 V and supports overvoltage tolerant inputs up to 5.5 V. The device includes IOFF circuitry for partial power-down applications. Propagation delay ranges from 1.0 ns to 12.8 ns depending on voltage. Output drive capability reaches ±24 mA at 3.0 V. It functions reliably across an ambient temperature range of -40 °C to +125 °C.

Feature Summary

• Provides four non-inverting buffers with 3-state outputs controlled by dedicated enable pins.
• Features Schmitt-trigger action on all inputs to tolerate slower rise and fall times.
• Includes IOFF circuitry that disables outputs to prevent damaging backflow current during power-down.
• Accepts input voltages up to 5.5 V, enabling direct interfacing with TTL levels and mixed 3.3 V/5 V environments.

Applications

• Translators in mixed 3.3 V and 5 V logic environments
• Partial power-down mode operation
• High-noise immunity signal buffering

Procurement Notes

Verify the specific ordering suffix '112' against the manufacturer's latest documentation to confirm packaging details and tape/reel specifications. Ensure the SO14 package variant matches the required board layout constraints. Confirm compliance with RoHS directives and REACH regulations for the intended market before finalizing procurement orders.

Selection Notes

Select this component when designing systems requiring level shifting between 3.3 V and 5 V logic families. The wide supply voltage range allows flexibility in low-power designs. The inclusion of Schmitt triggers makes it suitable for noisy environments or signals with slow transitions. Verify that the 3-state output configuration aligns with bus architecture requirements.

Part Context

This part belongs to the 74LVC125A family of quad buffers with 3-state outputs. It is designed for high-speed digital applications requiring robust signal integrity. The device is specified for industrial temperature ranges and offers multiple package options including SO14, TSSOP14, and QFN variants for diverse PCB form factors.

Replacement Considerations

Check for pin-compatible alternatives within the same LVC series if package availability is constrained. Ensure any substitute maintains the 5.5 V input tolerance and 3-state functionality. Verify that dynamic characteristics such as propagation delay meet the system timing requirements.