74LVC125AD,112

Overview

The Nexperia 74LVC125AD,112 is a quad buffer/line driver with 3-state outputs controlled by active LOW output enable inputs (nOE). It operates within a supply voltage range of 1.2 V to 3.6 V and features overvoltage tolerant inputs up to 5.5 V. The device includes Schmitt-trigger action for noise immunity and IOFF circuitry for partial power-down protection. It is housed in an SO14 plastic small outline package (SOT108-1) and supports an operating temperature range from -40 °C to +125 °C.

Feature Summary

• Provides four independent non-inverting buffers with 3-state outputs controlled by dedicated nOE pins.
• Features Schmitt-trigger inputs to ensure tolerance for slow input rise and fall times.
• Includes IOFF circuitry that disables outputs to prevent damaging backflow current during partial power-down.
• Supports direct interface with TTL levels and allows use as translators in mixed 3.3 V and 5 V environments.

Applications

• Translating signals between mixed 3.3 V and 5 V logic environments
• Partial power-down mode operation in systems requiring selective bus isolation
• Driving high-capacitance or long transmission lines via line driver functionality

Procurement Notes

Verify the specific ordering suffix ',112' against the manufacturer's official documentation to confirm the exact package type and tape-and-reel specifications. Confirm the product status is 'Production' rather than 'Obsolete' before finalizing design-in decisions. Ensure the selected component matches the required thermal dissipation limits for the intended ambient temperature conditions.

Selection Notes

Select this component when a quad buffer with 3-state control and 5 V tolerant inputs is required. The SO14 package is suitable for standard surface-mount assembly processes. Consider the propagation delay characteristics at the target supply voltage to ensure signal integrity meets system timing requirements.

Part Context

This part belongs to the 74LVC125A family of quad buffers/line drivers. The 'AD' designation specifically identifies the SO14 (SOT108-1) package variant. Other variants in the series include TSSOP14, DHVQFN14, and DHXQFN14 packages, offering flexibility for different board space and thermal constraints.

Replacement Considerations

Direct substitutes include other 74LVC125A variants from Nexperia such as 74LVC125APW (TSSOP14), 74LVC125ABQ (DHVQFN14), and 74LVC125ABZ (DHXQFN14), provided the package footprint is compatible.