NXP Semiconductors 74AUP3G14GSX

Overview

74AUP3G14GSX from Nexperia is a low-power triple Schmitt trigger inverter IC designed for signal conditioning in ultra-low-voltage digital systems. It provides three independent inverting buffers with hysteresis (VH = 0.79–1.31 V at VCC = 3.0 V), operates across 0.8 V to 3.6 V supply, delivers < 4.0 ns propagation delay at 3.0 V/CL = 5 pF, and features IOFF circuitry for partial power-down protection. It is used in relaxation oscillators, pulse shaping, and noise-immune sensor interface circuits.

For engineers reviewing the 74AUP3G14GSX datasheet, 74AUP3G14GSX pinout, 74AUP3G14GSX application, or 74AUP3G14GSX equivalent, key selection criteria include input hysteresis voltage (VT+ and VT−), ICC ≤ 1.4 μA over −40 °C to +125 °C, IOFF leakage ≤ ±0.75 μA during power-down, and compatibility with 1.0 mm × 1.35 mm XSON8 (SOT1203) packaging.

Technical Context

The 74AUP3G14GSX implements three independent Schmitt-trigger inverters in a single die, each with asymmetric switching thresholds (e.g., VT+ = 1.88–2.32 V, VT− = 0.88–1.24 V at VCC = 3.0 V) to reject slow-rising noise. Its IOFF circuit actively disables outputs when VCC = 0 V, preventing backflow current and enabling hot-swap capability in multi-rail systems.

Dynamic performance is load- and voltage-dependent: tpd ranges from 1.5 ns (VCC = 3.0 V, CL = 5 pF) to 7.4 ns (VCC = 3.0 V, CL = 30 pF), while CPD remains stable at 4.3 pF. Input capacitance is 1.1 pF and output capacitance is 1.7 pF, supporting high-speed edge integrity with minimal loading.

Key Specifications

Pinout & Package

XSON8 package (SOT1203): extremely thin small outline, no leads, 1.35 mm × 1.0 mm × 0.35 mm body, 8 terminals, wettable flank compatible for automated optical inspection.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar Schmitt trigger inverter applications.

Compared with SN74LVC1G14DBVR and 74LVC1G17GW,125, the 74AUP3G14GSX uniquely supports 0.8 V operation, delivers sub-2 μA ICC, and includes IOFF-making it the sole option for ultra-low-voltage, hot-swap-capable, and battery-critical designs.

Availability

74AUP3G14GSX is available at Aetrix Electronics and suitable for wave shapers, relaxation oscillators, monostable timers, and sensor interface circuits requiring stable component supply across automotive, industrial, and portable electronics programs.

Supply support for 74AUP3G14GSX 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 delivering high-performance, reliable, and efficient logic, discrete, and MOSFET solutions with leadership in process technology and application-specific optimization.

The 74AUP (Advanced Ultra-low Power) product line targets battery-constrained and thermally sensitive applications-designed specifically for sub-1 V digital interfacing, energy harvesting, and always-on sensing systems.

FAQ

What is the minimum supply voltage for guaranteed operation of the 74AUP3G14GSX?

The 74AUP3G14GSX is fully specified from 0.8 V to 3.6 V. At VCC = 0.8 V, it maintains functional Schmitt behavior with VT+ ≈ 0.30–0.60 V and VT− ≈ 0.10–0.60 V, and propagation delay remains within datasheet limits (tpd ≤ 19.9 ns, CL = 5 pF). This enables direct use with emerging 0.8 V-core processors and energy-harvesting PMIC outputs.

How does the IOFF feature protect the device during partial power-down?

When VCC = 0 V, the IOFF circuit disables all three outputs, forcing them into high-impedance state regardless of input voltage (up to 3.6 V). This prevents damaging backflow current from live signal lines into a powered-down domain, satisfying JESD78 Class II latch-up immunity and enabling safe hot-swap in modular systems.

Can the 74AUP3G14GSX drive a 30 pF load at 3.0 V while maintaining timing integrity?

Yes. At VCC = 3.0 V and CL = 30 pF, the 74AUP3G14GSX guarantees tpd ≤ 7.4 ns (−40 °C to +125 °C), with typical value 5.2 ns. Output drive strength (IO = ±4.0 mA) and low CO = 1.7 pF ensure minimal waveform distortion, making it suitable for driving multiple gate inputs or short PCB traces in timing-critical oscillator feedback paths.

Is the XSON8 (SOT1203) package of the 74AUP3G14GSX compatible with standard reflow profiles?

Yes. The SOT1203 package is qualified for IPC/JEDEC J-STD-020 moisture sensitivity level 1 (MSL1) and supports standard lead-free reflow profiles (peak temperature ≤ 260 °C). Its 0.35 mm height and wettable flanks enable reliable automated optical inspection (AOI) and high-yield placement in high-density layouts.