Nexperia USA Inc. 74LV1T34GWH

Overview

74LV1T34GWH from Nexperia is a single-supply CMOS level-translating buffer supporting bidirectional voltage translation between 1.2 V–5.0 V logic domains. It features 5 V-tolerant inputs, operates from 1.6 V to 5.5 V supply, delivers sub-5 ns propagation delay at 3.3 V/15 pF, and enables 1.8 V ↔ 3.3 V up/down translation in portable and industrial controller interfaces.

For engineers reviewing the 74LV1T34GWH datasheet, 74LV1T34GWH pinout, 74LV1T34GWH application, or 74LV1T34GWH equivalent, this page provides verified pin functions, real-world translation use cases, thermal derating data per package, static/dynamic specs across -40 °C to +125 °C, and validated alternatives for voltage-level interface design.

Technical Context

The device implements a single non-inverting buffer with input threshold adaptive to VCC - VIH/VIL shift with supply (e.g., VIH = 0.65 × VCC min at 3.0 V), enabling reliable detection of lower-voltage logic signals. Its 5 V-tolerant input structure allows safe interfacing with legacy 5 V systems while powered from 1.8 V or 2.5 V rails.

Output drive strength scales with VCC: VOH ≥ VCC − 0.25 V at IO = −5.5 mA (3.3 V), VOL ≤ 0.35 V at IO = 8 mA (4.5 V), ensuring robust noise margins across all supported supply voltages. Propagation delay is load- and voltage-dependent, ranging from 3.1 ns (5.0 V/15 pF) to 11.4 ns (1.8 V/30 pF).

Key Specifications

Pinout & Package

TSSOP5 (SOT353-1) package: plastic thin shrink small outline, 5-lead, 1.25 mm body width, 0.65 mm lead pitch, 0.32 mm profile - optimized for space-constrained portable PCBs.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar level translation applications.

Compared with SN74LVC1T45DBVR and TXB0101DCKR, the 74LV1T34GWH offers lowest pin count (5-pin), highest input voltage tolerance (5.5 V), and lowest static current - making it optimal for space- and power-constrained unidirectional translation where direction control is impractical.

Availability

74LV1T34GWH is available at Aetrix Electronics and suitable for portable applications, PC and notebooks, industrial controllers, and telecom equipment requiring stable component supply across automotive-grade temperature ranges and long product lifecycles.

Supply support for 74LV1T34GWH 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, high-reliability logic, analog, and discrete components for mass-market electronics.

The 74LV1T34 belongs to Nexperia's LV1T single-gate logic translator family, engineered specifically for minimizing voltage-domain interoperability barriers in space- and power-sensitive embedded systems.

FAQ

What is the maximum input voltage the 74LV1T34GWH can tolerate when VCC = 1.8 V?

The 74LV1T34GWH supports 5 V-tolerant inputs: VI(max) = 5.5 V regardless of VCC setting. When powered from 1.8 V, it safely accepts 3.3 V or 5 V logic signals without clamping diodes conducting or damaging the input stage - confirmed by Absolute Maximum Ratings Table 5 and functional description Section 1.

Does the 74LV1T34GWH require external pull-up or pull-down resistors on input or output?

No external biasing resistors are required. The device has CMOS-compatible inputs with defined VIH/VIL thresholds (e.g., VIH ≥ 0.65 × VCC) and rail-to-rail outputs. Floating inputs are not permitted per design guidelines - unused inputs must be tied to VCC or GND, but no pull resistors are needed for functional operation.

How does thermal derating work for the TSSOP5 (SOT353-1) package?

For SOT353-1, total power dissipation (Ptot) derates linearly at 3.3 mW/K above 74 °C ambient. At 100 °C, Ptot drops to 250 mW − (100 − 74) × 3.3 ≈ 162 mW. This is specified in Table 5 Note [4] and applies to continuous DC operation - pulsed loads require transient thermal analysis.

Can the 74LV1T34GWH translate from 5 V to 1.8 V logic levels?

Yes - with VCC = 1.8 V, the device performs level-down translation: a 5 V input is recognized as HIGH (VIH threshold ~1.0 V), and the output swings 0 V to 1.8 V. This is explicitly supported per Section 2 "Down translation" and Table 4 function table - verified across -40 °C to +125 °C.