Nexperia USA Inc. 74LVC3G14GT,115

Overview

74LVC3G14GT from Nexperia is a triple inverting Schmitt trigger IC with 5 V tolerant inputs, designed for signal conditioning in mixed-voltage digital systems. It operates from 1.65 V to 5.5 V, delivers ±24 mA output drive at 3.0 V, features IOFF partial power-down protection, and supports industrial temperature range (−40 °C to +125 °C) in an XSON8 package (1.0 × 1.95 × 0.5 mm).

For engineers reviewing the 74LVC3G14GT datasheet, 74LVC3G14GT pinout, 74LVC3G14GT application, or 74LVC3G14GT equivalent, this page provides verified functional identity, validated terminal mapping, confirmed Schmitt trigger thresholds (VT+ = 2.47 V / VT− = 1.55 V at VCC = 4.5 V), real-world noise immunity metrics, and precise thermal derating data for SOT833-1 packaging.

Technical Context

This device implements three independent inverting Schmitt triggers with hysteresis (VH = 0.92 V typical at VCC = 4.5 V), enabling clean edge regeneration from slow or noisy input waveforms. Its IOFF circuit actively disables outputs during power-down to prevent backflow current, satisfying IEC 60134 absolute maximum rating compliance.

The input structure accepts logic levels up to 5.5 V regardless of VCC (1.65–5.5 V), allowing direct interfacing between 3.3 V microcontrollers and 5 V legacy peripherals. Propagation delay is 2.4 ns typical (VCC = 4.5–5.5 V), with dynamic power dissipation governed by CPD = 18.1 pF and supply-independent unlimited rise/fall time tolerance.

Key Specifications

Pinout & Package

XSON8 plastic extremely thin small outline package (SOT833-1), no leads, 8 terminals, body dimensions 1.0 mm × 1.95 mm × 0.5 mm, pin 1 index located on lower left corner below marking "V14".

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC3G14DCUR, the 74LVC3G14GT offers superior thermal performance in space-constrained layouts but requires precision placement for XSON8 reflow. Against 74AUP3G14GT,115, it trades 75% lower quiescent current for guaranteed 5 V input compatibility and 6× higher output drive - critical for driving long traces or multiple loads.

Availability

74LVC3G14GT is available at Aetrix Electronics and suitable for industrial motor control, automotive body electronics, and IoT sensor node designs requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74LVC3G14GT 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 logic, discrete, and MOSFET solutions with industry-leading quality and reliability.

The 74LVC3G14GT belongs to Nexperia's LVC logic family, engineered for robust signal integrity in mixed-voltage digital systems where noise immunity, power-down safety, and compact packaging are critical design requirements.

FAQ

What is the maximum input voltage the 74LVC3G14GT can safely accept?

The 74LVC3G14GT accepts input voltages up to 5.5 V regardless of VCC level, as confirmed in Table 5 (Limiting Values) and Table 6 (Operating Conditions). This 5 V tolerance is maintained across the full −40 °C to +125 °C operating range and enables direct interfacing with legacy 5 V logic without external level shifters.

Does the 74LVC3G14GT support hot insertion or partial power-down?

Yes - the device integrates IOFF circuitry that automatically disables all three outputs when VCC = 0 V, limiting backflow current to ±2 μA maximum (Table 7). This feature satisfies IEC 60134 requirements and protects powered subsystems during live board insertion or controlled shutdown sequences.

How does the Schmitt trigger hysteresis improve noise rejection?

At VCC = 4.5 V, the device exhibits VT+ = 2.47 V and VT− = 1.55 V (Table 8), yielding 0.92 V hysteresis. This means input noise must exceed ±460 mV peak-to-peak to cause unintended state changes - significantly higher than standard CMOS inverters (typically <100 mV), making it ideal for switch debouncing and sensor signal conditioning.

What is the thermal derating behavior for the SOT833-1 package?

The SOT833-1 package (XSON8) has a total power dissipation limit of 250 mW up to +68 °C, then derates linearly at 3.1 mW/K above that temperature (Table 5, footnote [2]). At +100 °C ambient, maximum allowable power drops to 151 mW - a critical constraint for high-density PCB layouts without forced airflow or copper thermal vias.