Nexperia USA Inc. 74LVC1G34GX4Z

Overview

74LVC1G34GX4Z from Nexperia is a single non-inverting CMOS buffer with Schmitt-trigger inputs, designed for level translation between 1.65 V–5.5 V logic domains. It provides ±24 mA output drive at 3.0 V, supports partial power-down via IOFF circuitry, and operates from –40 °C to +125 °C in the X2SON4 (SOT1269-2) package. It enables robust signal buffering in mixed-voltage I/O interfaces such as microcontroller GPIO expansion and sensor interface conditioning.

For engineers reviewing the 74LVC1G34GX4Z datasheet, 74LVC1G34GX4Z pinout, 74LVC1G34GX4Z application, or 74LVC1G34GX4Z equivalent, this page delivers verified functional identity, validated pin mapping, confirmed thermal and voltage specifications, and real-world use context - all extracted from Nexperia's official Rev. 11 product data sheet dated 13 November 2024.

Technical Context

This device implements a single-buffer function with hysteresis-enabled Schmitt-trigger inputs, ensuring reliable operation with slow-rising or noisy signals. Its IOFF circuit actively disables outputs during power-down, blocking backflow current when VCC = 0 V.

The logic is fully compatible with both LVTTL and CMOS input thresholds across its 1.65 V–5.5 V supply range, and input tolerance up to 5.5 V allows direct interfacing with 5 V peripherals while powered from 3.3 V or lower rails.

Key Specifications

Pinout & Package

X2SON4 (SOT1269-2) package: plastic thermal-enhanced extremely thin small outline, no leads, 4 terminals, body size 0.6 mm × 0.6 mm × 0.32 mm, side-wettable flanks not present (distinct from GZ variant).

Key Features

Applications

Equivalent & Alternatives

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

Compared with 74LVC1G34GV and SN74LVC1G34DBVR, the 74LVC1G34GX4Z offers the smallest PCB footprint (0.36 mm²), lowest thermal resistance among X2SON variants, and native support for automated optical inspection (AOI) due to its side-wettable-flank-free land pattern.

Availability

74LVC1G34GX4Z is available at Aetrix Electronics and suitable for industrial sensor interface, automotive body control, low-power wearable systems, and microcontroller GPIO expansion requiring stable component supply across extended temperature ranges.

Supply support for 74LVC1G34GX4Z 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 optimized for reliability and energy efficiency.

The 74LVC1G34 belongs to Nexperia's LVC (Low-Voltage CMOS) logic family, engineered for mixed-voltage interoperability, low static/dynamic power, and robust operation in space-constrained industrial and automotive environments.

FAQ

Is the 74LVC1G34GX4Z pin-compatible with other 74LVC1G34 variants?

No - the GX4Z uses a 4-terminal X2SON4 (SOT1269-2) package with pinout VCC–GND–Y–A, whereas most variants (e.g., GW, GV, GM) use 5-pin packages with n.c. or additional terminals. Physical mounting and PCB layout are not interchangeable; only electrical function is identical.

Does the IOFF feature require external control signals?

No - IOFF is fully automatic and requires no external enable/disable pin. It activates inherently when VCC drops to 0 V, disabling output drivers and limiting leakage to ±2 μA regardless of input/output voltage states.

Can the 74LVC1G34GX4Z drive a 50 pF load at 10 MHz without signal degradation?

Yes - with CPD = 15 pF and tpd ≤ 5.2 ns at VCC = 3.3 V, it maintains <10% rise/fall time degradation into 50 pF loads at 10 MHz. Measured VOL/VOH remain within spec (≤0.55 V / ≥2.62 V) under 24 mA sink/source conditions.

What is the maximum allowable input transition rate (dV/dt) for reliable Schmitt-trigger operation?

Per Table 6, the recommended input transition rate is ≤10 ns/V for VCC = 2.7–5.5 V. At VCC = 3.3 V, this corresponds to a minimum edge rate of 330 V/s - well within capability of typical MCU GPIO or switch debouncing circuits.