NXP Semiconductors 74AUP2G125GD,125

Overview

74AUP2G125GD,125 from Nexperia is a dual 3-state buffer/line driver with Schmitt-trigger inputs, operating across 0.8 V to 3.6 V supply, delivering ICC ≤ 0.9 μA (max) static current, tpd ≤ 3.1 ns at VCC = 3.3 V/CL = 5 pF, and IOFF-enabled partial power-down protection. It serves as a low-power signal routing and bus isolation component in battery-powered IoT sensors and portable medical monitors.

For engineers reviewing the 74AUP2G125GD,125 datasheet, 74AUP2G125GD,125 pinout, 74AUP2G125GD,125 application, or 74AUP2G125GD,125 equivalent, key selection criteria include ultra-low ICC across full VCC range, guaranteed 3-state output disable during power-down, Schmitt-trigger noise immunity on both inputs, and compatibility with 1.2 V, 1.8 V, and 3.3 V logic domains.

Technical Context

This device implements two independent non-inverting buffers, each with active-low 3-state enable (nOE), enabling bidirectional bus control without external direction logic. Each channel features Schmitt-trigger input thresholds (VIH/VIL varying with VCC) for robust operation with slow-rising signals.

The IOFF circuit actively disables outputs when VCC = 0 V, blocking backflow current up to ±0.75 μA (max) - critical for hot-swap and multi-rail systems. Input tolerance to 3.6 V regardless of VCC allows interfacing with higher-voltage peripherals while powered from sub-1.2 V rails.

Key Specifications

Pinout & Package

XSON8 package (SOT1116): plastic extremely thin small outline, no leads, 8 terminals, body size 1.2 mm × 1.0 mm × 0.35 mm, thermal pad omitted.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual 3-state buffer applications.

Compared with SN74LVC2G125DPWR, the 74AUP2G125GD,125 delivers 11× lower static current and built-in Schmitt noise rejection; versus 74LVC2G126GW,125, it avoids mandatory signal inversion while retaining identical thermal and layout compatibility.

Availability

74AUP2G125GD,125 is available at Aetrix Electronics and suitable for industrial sensor interface, wearable health monitor, and automotive cabin controller applications requiring stable component supply across extended temperature ranges and ultra-low power budgets.

Supply support for 74AUP2G125GD,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 essential efficiency technologies, delivering high-performance, reliable components for automotive, industrial, and consumer markets.

The 74AUP (Advanced Ultra-low Power) logic family targets energy-constrained applications where sub-μA static current, wide VCC scalability, and robust IOFF protection are mandatory design requirements.

FAQ

What is the maximum capacitive load the 74AUP2G125GD,125 can drive while maintaining specified propagation delay?

The device is characterized up to CL = 30 pF, with tpd ≤ 8.3 ns at VCC = 3.3 V. At CL = 15 pF, tpd is ≤ 4.4 ns - well within timing budgets for 100 MHz SPI or I²C clock stretching. Driving >30 pF risks exceeding max delay and increasing dynamic power beyond CPD × VCC² × fi limits.

Can 74AUP2G125GD,125 safely interface a 3.3 V FPGA I/O to a 1.2 V microcontroller without external level shifters?

Yes: its inputs tolerate up to 3.6 V regardless of VCC, and its outputs swing rail-to-rail (0 V to VCC). When powered at VCC = 1.2 V, it accepts 3.3 V FPGA signals directly and outputs 0–1.2 V logic levels compatible with the MCU's 1.2 V I/O standard.

Does the IOFF feature require any external circuitry or configuration to activate during power-down?

No: IOFF activates automatically when VCC drops to 0 V. No external pull-ups, enable sequencing, or configuration registers are needed - the circuitry is hardwired and functions across all temperature ranges without firmware intervention.

How does the Schmitt-trigger input improve reliability in noisy automotive environments?

Schmitt-trigger inputs provide ≥150 mV hysteresis (at VCC = 3.3 V), rejecting transient spikes <150 mV and preventing false toggling on slow edges induced by EMI or long harness wiring - critical for CAN/LIN enable signals and sensor wake-up lines.