74AXP1T125GNH

Overview

The Nexperia 74AXP1T125GNH is a dual supply non-inverting buffer/line driver with 3-state output. It features one input (A), an output (Y), an output enable input (OE) and dual supply pins (VCCI and VCCO). The inputs are referenced to VCCI and the output is referenced to VCCO. All inputs can be connected directly to VCCI or GND. VCCI can be supplied at any voltage between 0.7 V and 2.75 V and VCCO can be supplied at any voltage between 1.2 V and 5.5 V.

Feature Summary

• Provides voltage level translation capabilities through independent input and output supply domains.
• Schmitt-trigger action at all inputs makes the circuit tolerant of slower input rise and fall times.
• IOFF circuitry provides partial power-down mode operation, preventing potentially damaging backflow current when powered down.

Applications

• Voltage level translation between different logic families
• Bus buffering in mixed-voltage systems
• Line driving for high-speed data transmission

Procurement Notes

Verify the specific package variant against the ordering information table. The 'GN' suffix corresponds to the XSON6 package (SOT1115) with dimensions 0.9 x 1.0 x 0.35 mm. Confirm temperature range is -40 °C to +85 °C. Ensure compatibility with required supply voltages: VCCI 0.7 V to 2.75 V and VCCO 1.2 V to 5.5 V. Check for RoHS compliance status if required by design specifications.

Selection Notes

Select this component when interfacing circuits operating at different voltage levels, such as translating from low-voltage logic (e.g., 1.2 V) to higher voltage standards (e.g., 3.3 V or 5.5 V). The dual-supply architecture allows flexible power domain isolation. Consider the XSON6 package size for space-constrained designs. Verify that the input voltage does not exceed the maximum VCCI rating of 2.75 V under normal operation.

Part Context

This device belongs to the 74AXP series of bus drivers designed for low-power applications. It is part of Nexperia's portfolio of logic ICs offering various package options including XSON and X2SON types. The 74AXP1T125 specifically addresses the need for level shifting in modern electronic systems where multiple voltage rails coexist.

Replacement Considerations

Direct substitutes include other 74AXP1T125 variants with different packages such as 74AXP1T125GM (SOT886), 74AXP1T125GS (SOT1202), and 74AXP1T125GX (SOT1255-2). These share identical electrical characteristics but differ in physical footprint and thermal properties. Cross-referencing pinouts and package dimensions is essential for board-level replacement.