Nexperia USA Inc. 74LV1T34GXH

Overview

74LV1T34GXH from Nexperia is a single-supply CMOS level-translating buffer supporting bidirectional voltage translation across 1.8 V, 2.5 V, 3.3 V, and 5.0 V logic domains. It features 5 V tolerant inputs, operates from 1.6 V to 5.5 V supply, delivers propagation delays as low as 3.1 ns (VCC = 5.0 V, CL = 15 pF), and is qualified for -40 °C to +125 °C ambient operation in portable and industrial controller applications.

For engineers reviewing the 74LV1T34GXH datasheet, 74LV1T34GXH pinout, 74LV1T34GXH application, or 74LV1T34GXH equivalent, this device serves as a compact, single-channel solution for interfacing mixed-voltage I/O between microcontrollers, FPGAs, and peripheral ICs where space-constrained PCB layout and rail-to-rail output swing are critical.

Technical Context

The 74LV1T34GXH implements a non-inverting buffer topology with input threshold levels dynamically scaled to VCC, enabling reliable up-translation (e.g., 1.8 V input → 3.3 V output at VCC = 3.3 V) and down-translation (e.g., 5.0 V input → 3.3 V output at VCC = 3.3 V). Its 5 V tolerant inputs eliminate external clamping diodes when interfacing legacy 5 V logic.

It operates without external biasing or dual supplies, relying solely on its single VCC rail to define output voltage levels. Input leakage remains ≤ ±1 μA over full temperature range, and dynamic power dissipation is governed by CPD values ranging from 4.2 pF (VCC = 1.8 V) to 11.5 pF (VCC = 5.0 V).

Key Specifications

Pinout & Package

X2SON5 package (SOT1226-3): 0.8 mm × 0.8 mm × 0.32 mm body, thermal-enhanced, leadless, 5-terminal surface-mount package with wettable flanks for automated optical inspection.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC1T45DBVR and TXB0101DCKR, the 74LV1T34GXH provides the smallest footprint (0.64 mm²), lowest propagation delay in up-translation mode, and simplest unidirectional implementation - making it optimal for GPIO expansion, reset line translation, and clock-enable distribution where direction is static.

Availability

74LV1T34GXH is available at Aetrix Electronics and suitable for portable applications, PC and notebook subsystems, industrial controllers, and telecom baseband modules requiring stable component supply across automotive-grade temperature ranges and long production lifecycles.

Supply support for 74LV1T34GXH 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 logic, discrete, and MOSFET solutions optimized for efficiency-critical applications in consumer, industrial, and automotive markets.

The 74LV1T34GXH belongs to Nexperia's LV1T single-gate logic family, engineered specifically for ultra-compact, low-power voltage translation in space- and power-constrained embedded systems.

FAQ

What is the maximum input voltage the 74LV1T34GXH can tolerate?

The 74LV1T34GXH supports input voltages up to 7.0 V absolute maximum, with guaranteed 5 V tolerance across all operating conditions. This allows safe interfacing with 5 V logic buses even when powered from 1.8 V or 2.5 V supplies, eliminating external clamping components in most mixed-voltage designs.

Does the 74LV1T34GXH require external pull-up or pull-down resistors?

No - the 74LV1T34GXH has no internal pull resistors and does not require external ones for basic buffer operation. However, pull-up resistors may be needed on the input (A) if driven by open-drain sources, and decoupling capacitors (100 nF ceramic) are mandatory on VCC per datasheet layout guidelines.

Can the 74LV1T34GXH translate from 5 V to 1.8 V?

Yes - when VCC = 1.8 V, the device performs level down-translation: a 5 V input at pin A produces a 1.8 V CMOS-compatible output at Y. Static characteristics confirm VIH minimum of 2.02 V at VCC = 4.5–5.0 V, and the input structure tolerates 5 V regardless of supply rail.

Is the n.c. pin on the 74LV1T34GXH required to be grounded?

No - the n.c. (pin 1) is internally unconnected and must remain floating or optionally tied to GND for mechanical stability; grounding it does not affect functionality but improves solder joint reliability during reflow. Do not connect it to VCC or signal nets.