Nexperia USA Inc. 74LVC1G32GX,125

Overview

74LVC1G32GX,125 from Nexperia is a single 2-input OR gate logic IC in X2SON5 (SOT1226-3) package with 5 terminals, operating from 1.65 V to 5.5 V supply, featuring Schmitt-trigger inputs for noise immunity, IOFF partial power-down protection, and ±24 mA output drive at 3.0 V - used in level translation between 3.3 V and 5 V subsystems in industrial control I/O conditioning.

For engineers reviewing the 74LVC1G32GX,125 datasheet, 74LVC1G32GX,125 pinout, 74LVC1G32GX,125 application, or 74LVC1G32GX,125 equivalent, key selection factors include its 5-terminal thermal-enhanced X2SON5 footprint, IOFF-enabled hot-swap compatibility, Schmitt-trigger input hysteresis, propagation delay down to 0.5 ns at 5.5 V, and guaranteed operation across –40 °C to +125 °C.

Technical Context

This device implements a standard positive-logic OR function (Y = A + B) with fully buffered CMOS outputs and Schmitt-trigger inputs that provide 0.3–0.4 V hysteresis depending on VCC, enabling robust operation with slow-rising or noisy signals. Its IOFF circuit actively disables outputs when VCC = 0 V, preventing backfeed current during partial power-down sequences.

The logic gate supports mixed-voltage interfacing: inputs tolerate up to 5.5 V regardless of VCC (1.65–5.5 V), allowing direct connection to 5 V TTL outputs while powered from 1.8 V or 3.3 V rails. Propagation delay is specified from 0.5 ns (VCC = 5.5 V) to 10.5 ns (VCC = 1.65 V, –40 °C to +125 °C), with dynamic power dissipation governed by CPD = 16 pF.

Key Specifications

Pinout & Package

X2SON5 plastic thermal-enhanced extremely thin small outline package (SOT1226-3), 0.8 mm × 0.8 mm × 0.32 mm body, 5 terminals, no leads, side-wettable flanks not present (distinguishing it from SOT8065-1).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 2-input OR gate applications.

Compared with 74LVC1G32GV and SN74LVC1G32DBVR, the 74LVC1G32GX,125 delivers superior thermal performance per unit area, guaranteed industrial temperature operation, and rigorously characterized IOFF behavior - making it optimal for high-density, thermally constrained, and safety-aware embedded systems.

Availability

74LVC1G32GX,125 is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, automotive body control modules, medical infusion pump UI logic, and consumer IoT hub signal conditioning requiring stable component supply across extended temperature ranges and high-volume production cycles.

Supply support for 74LVC1G32GX,125 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 global semiconductor expert focused on high-volume, high-reliability logic, analog, and MOSFET solutions, with manufacturing rooted in process technology leadership and automotive-grade quality systems.

The 74LVC1G32GX,125 belongs to Nexperia's LVC (Low-Voltage CMOS) logic family, designed specifically for energy-efficient, mixed-voltage digital interfacing in space- and power-constrained industrial and automotive auxiliary applications.

FAQ

Does 74LVC1G32GX,125 support true bidirectional level translation?

No. It is a unidirectional OR gate: inputs accept overvoltage signals, but the output swings only between GND and VCC. For bidirectional translation (e.g., I²C), a dedicated bus switch or passive resistor-based solution is required. The device's IOFF feature isolates the output when VCC is off, but does not enable reverse signal flow.

Can Pin 3 (GND) be left floating in partial power-down mode?

No. GND must remain connected to system ground at all times. Floating GND violates Absolute Maximum Ratings and may cause unpredictable output states, increased leakage, or permanent damage. IOFF protection requires both VCC = 0 V and GND referenced to 0 V to function correctly.

What is the minimum input rise/fall time supported with Schmitt-trigger inputs?

The datasheet specifies Δt/ΔV limits: ≤20 ns/V at VCC = 1.65–2.7 V and ≤10 ns/V at VCC = 2.7–5.5 V. For a 5 V swing, this translates to maximum allowable edge rates of 100 ns (1.65 V) to 50 ns (5.5 V). Slower edges are tolerated due to hysteresis, but propagation delay increases predictably beyond these thresholds.

Is the X2SON5 package (SOT1226-3) compatible with standard reflow profiles for lead-free assembly?

Yes. Nexperia qualifies SOT1226-3 for IPC/JEDEC J-STD-020 moisture sensitivity level 1 (MSL1) and standard Pb-free reflow (peak 260 °C, 10 s). Its thermal pad design supports efficient heat transfer during soldering, and the 0.32 mm profile avoids tombstoning risks common in ultra-thin packages when stencil aperture and paste volume are properly controlled.