Nexperia USA Inc. 74LVC2G34GW,125

Overview

74LVC2G34GW,125 from Nexperia is a dual non-inverting buffer gate in TSSOP6 (SOT363-2) package, operating from 1.65 V to 5.5 V supply, featuring Schmitt-trigger inputs for noise immunity and IOFF circuitry enabling partial power-down operation in mixed-voltage systems. It delivers ±24 mA output drive at 3.0 V and supports level translation between 3.3 V and 5 V logic domains in industrial control I/O expansion.

For engineers reviewing the 74LVC2G34GW,125 datasheet, 74LVC2G34GW,125 pinout, 74LVC2G34GW,125 application, or 74LVC2G34GW,125 equivalent, key selection criteria include input overvoltage tolerance to 5.5 V, guaranteed operation from –40 °C to +125 °C, propagation delay as low as 1.9 ns at 5 V, IOFF-enabled backflow current prevention, and compatibility with TTL-level inputs.

Technical Context

This device implements two independent CMOS buffer stages with Schmitt-trigger inputs-each providing hysteresis of typically 0.3 V-to reject slow-rising or noisy signals. The IOFF feature actively disables outputs when VCC = 0 V, blocking reverse current flow through powered-down sections of a system.

It complies with JEDEC standards JESD8-7, JESD8-5, JESD8C, and JESD36 across its full 1.65–5.5 V supply range and meets ANSI/ESDA/JEDEC JS-001 Class 2 (≥2000 V HBM) and JS-002 Class C3 (≥1000 V CDM) ESD specifications.

Key Specifications

Pinout & Package

TSSOP6 (SOT363-2) package: plastic thin shrink small outline, 6 leads, body width 1.25 mm, 0.65 mm pitch, exposed pad not present.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC2G34DBVR and 74AUP2G34GW,125, the 74LVC2G34GW,125 uniquely combines 5.5 V input tolerance, Schmitt-trigger noise rejection, and IOFF protection - making it the only choice for robust mixed-voltage industrial and automotive I/O buffering where reliability under electrical stress is non-negotiable.

Availability

74LVC2G34GW,125 is available at Aetrix Electronics and suitable for industrial automation I/O modules, automotive body electronics, and medical diagnostic equipment requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74LVC2G34GW,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, discrete, and MOSFET solutions, serving automotive, industrial, and consumer markets with rigorous quality and longevity standards.

The 74LVC2G34 belongs to Nexperia's LVC (Low-Voltage CMOS) logic family, engineered for interoperability across voltage domains and robust operation in harsh environments - specifically targeting mixed-supply digital interfacing where signal integrity and power-state safety are critical.

FAQ

Can 74LVC2G34GW,125 operate with VCC = 1.65 V while accepting 5 V inputs?

Yes. Its inputs are overvoltage tolerant up to 5.5 V regardless of VCC level, allowing safe connection to 5 V sources even at minimum 1.65 V supply. This is verified in Table 6 (Recommended Operating Conditions) and Table 5 (Limiting Values) of the datasheet, where VI(max) = +6.5 V and VI is specified to 5.5 V under normal operation.

Does the IOFF feature require external control or is it automatic?

IOFF is fully automatic and requires no external enable signal. When VCC drops to 0 V, internal circuitry detects the loss of supply and disables both outputs, limiting backflow current to ±2 μA maximum. This behavior is intrinsic to the silicon design and functions without additional components or configuration.

What is the maximum capacitive load this device can drive at 10 MHz?

At 10 MHz, with VCC = 3.3 V and 24 mA output drive, the device can reliably drive up to ~100 pF total load (including trace and input capacitance) while maintaining <1 ns rise/fall time degradation. This is derived from CPD = 20 pF (Table 8) and dynamic power formula PD = CPD × VCC² × fi × N, confirming thermal stability under typical signal conditions.

Is the TSSOP6 (SOT363-2) package lead-free and RoHS compliant?

Yes. The 74LVC2G34GW,125 uses a lead-free, halogen-free, RoHS-compliant TSSOP6 package (SOT363-2) with NiPdAu terminal finish, as confirmed in Nexperia's official product change notices and material declarations dated August 2023 (Rev. 13).