Nexperia USA Inc. 74AXP1G125GXH

Overview

74AXP1G125GXH from Nexperia is a single low-power 3-state buffer/line driver with Schmitt-trigger inputs, operating from 0.7 V to 2.75 V supply. It features IOFF partial power-down protection, 0.5 pF typical input capacitance, and 2.5 pF dynamic power dissipation at 1.2 V - enabling use in ultra-low-power I/O buffering for portable sensor interfaces and battery-powered microcontroller GPIO expansion.

For engineers reviewing the 74AXP1G125GXH datasheet, 74AXP1G125GXH pinout, 74AXP1G125GXH application, or 74AXP1G125GXH equivalent, key selection criteria include its sub-1 μA static ICC at 85 °C, 5-terminal X2SON5 (SOT1226-3) thermal-enhanced package, IOFF-enabled bus isolation during power sequencing, and guaranteed operation across –40 °C to +85 °C industrial temperature range.

Technical Context

This device implements a non-inverting digital buffer with active-low 3-state output control (OE), where Schmitt-trigger inputs tolerate slow-rising signals and suppress noise-induced switching. Its IOFF circuit actively disables output leakage when VCC = 0 V, supporting hot-insertion and multi-rail system power sequencing.

Designed for ultra-low-voltage logic translation and I/O buffering, it delivers propagation delays as low as 1.1 ns (typ.) at 2.3–2.7 V and maintains stable VIH/VIL thresholds across its full 0.7–2.75 V VCC range - enabling interoperability between 0.8 V, 1.2 V, 1.8 V, and 2.5 V logic domains without external level shifters.

Key Specifications

Pinout & Package

X2SON5 plastic thermal-enhanced extremely thin small outline package (SOT1226-3); no leads; 5 terminals; body dimensions 0.8 mm × 0.8 mm × 0.32 mm; wettable flank design for automated optical inspection.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar buffer/line driver applications.

Compared with 74LVC1G125GW and SN74AUP1G125DBVR, the 74AXP1G125GXH uniquely combines ultra-low static current, IOFF protection, Schmitt inputs, and X2SON5 miniaturization - making it optimal for space- and power-constrained industrial edge nodes where signal integrity and power sequencing reliability are non-negotiable.

Availability

74AXP1G125GXH is available at Aetrix Electronics and suitable for industrial sensor interfaces, low-power microcontroller GPIO expansion, multi-rail power sequencing, and high-density memory subsystem buffering requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74AXP1G125GXH includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Nexperia is a leading Dutch semiconductor manufacturer specializing in high-performance, energy-efficient logic, analog, and discrete components for automotive, industrial, and consumer markets.

The AXP logic family targets ultra-low-power, wide-VCC digital interfacing - designed specifically for battery-operated and thermally constrained applications where traditional logic families fail to meet static current or voltage flexibility requirements.

FAQ

Does 74AXP1G125GXH support true bidirectional data flow?

No. It is a unidirectional non-inverting buffer with fixed input (A) and output (Y) pins. Bidirectional operation requires external control logic or a dedicated transceiver like the 74AXP1T45. The OE pin only controls output enable/disable state, not directionality.

Can 74AXP1G125GXH be used with 3.3 V logic systems?

No. Its absolute maximum VCC is +3.3 V, but recommended operating range ends at 2.75 V. Applying 3.3 V risks exceeding specification limits and may cause accelerated parametric drift or premature failure. For 3.3 V systems, consider the 74LVC1G125 instead.

What is the significance of the 'GX' suffix in 74AXP1G125GXH?

The 'GX' denotes the X2SON5 package variant (SOT1226-3) - a 5-terminal thermal-enhanced ultra-thin outline with 0.8 mm × 0.8 mm body size and wettable flanks. The 'H' suffix indicates tape-and-reel packaging per JEDEC J-STD-020 moisture sensitivity level 1.

How does the IOFF feature behave when VCC is ramping during power-up?

IOFF activates automatically when VCC drops below ~0.2 V and remains active until VCC exceeds ~0.4 V. During controlled ramp-up, output stays in high-impedance until VCC stabilizes above 0.7 V - preventing glitch propagation and bus contention in systems with asynchronous power sequencing.