Nexperia USA Inc. 74LVC3G34GD/S470,1

Overview

74LVC3G34GD/S470,1 from Nexperia is a triple non-inverting buffer IC with Schmitt-trigger inputs, designed for level translation between 3.3 V and 5 V logic domains in mixed-voltage systems. It features ±24 mA output drive at 3.0 V, IOFF partial power-down protection, and operates across 1.65 V to 5.5 V supply range. Used in interface conditioning for microcontroller I/O expansion and sensor signal routing.

For engineers reviewing the 74LVC3G34GD/S470,1 datasheet, 74LVC3G34GD/S470,1 pinout, 74LVC3G34GD/S470,1 application, or 74LVC3G34GD/S470,1 equivalent, this page delivers verified functional role, validated pin mapping for XSON8 (SOT996-2), real-world timing specs, and precise voltage translation behavior - critical for bus buffering and mixed-supply signal integrity validation.

Technical Context

The 74LVC3G34GD/S470,1 implements three independent CMOS buffer gates with Schmitt-trigger inputs enabling robust noise immunity against slow-rising signals. Its IOFF circuit actively disables outputs during power-down, blocking backflow current when VCC = 0 V.

It supports JEDEC-compliant voltage interfaces across four ranges: JESD8-7 (1.65–1.95 V), JESD8-5 (2.3–2.7 V), JESD8C (2.7–3.6 V), and JESD36 (4.5–5.5 V), ensuring interoperability with TTL, LVTTL, and mixed-voltage ASIC/FPGA I/O banks.

Key Specifications

Pinout & Package

XSON8 ultra-thin package (SOT996-2), 1.0 × 1.45 × 0.5 mm body, no leads, 8-terminal surface-mount design optimized for high-density PCB layouts and automated assembly.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC3G34DCUR and 74LVC3G34GT,1, the 74LVC3G34GD/S470,1 offers the smallest XSON8 variant (SOT996-2) with optimized 1.0 × 1.45 mm area and lowest-profile mounting - critical for space-constrained wearables and modular sensor nodes where Z-height and board area are constrained.

Availability

74LVC3G34GD/S470,1 is available at Aetrix Electronics and suitable for industrial sensor interface, microcontroller I/O expansion, automated test equipment fixture logic, and low-power IoT peripheral bus applications requiring stable component supply across extended temperature and mixed-voltage environments.

Supply support for 74LVC3G34GD/S470,1 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 logic, discrete, and MOSFET solutions with emphasis on reliability, efficiency, and miniaturization for industrial and consumer electronics.

The 74LVC3G34 belongs to Nexperia's LVC logic family, engineered for low-voltage, high-speed, mixed-supply interface applications - specifically targeting voltage translation, signal conditioning, and I/O buffering in space- and power-constrained embedded systems.

FAQ

Does 74LVC3G3G34GD/S470,1 support true bidirectional level shifting?

No. The 74LVC3G34GD/S470,1 is a unidirectional non-inverting buffer with Schmitt-trigger inputs. It translates voltage levels only from input to output; it does not auto-detect direction or support back-driving. For bidirectional translation, a dedicated bus switch or dual-supply translator like NXH0102UK is required.

What is the maximum capacitive load this device can drive while maintaining specified tpd?

The datasheet specifies dynamic characteristics with 30–50 pF load capacitance. At VCC = 3.3 V and CL = 50 pF, tpd remains ≤5.1 ns. Driving >75 pF increases propagation delay nonlinearly and may cause output overshoot; for heavier loads, add series termination or use a driver with higher current capability.

Can 74LVC3G34GD/S470,1 be used with VCC = 1.8 V while accepting 3.3 V inputs?

Yes. Inputs tolerate up to 5.5 V regardless of VCC. At VCC = 1.8 V, VIH is 0.65×VCC ≈ 1.17 V and VIL is 0.35×VCC ≈ 0.63 V, so a 3.3 V input is recognized as HIGH with full noise margin. Output VOH will be ~1.7 V (VCC − 0.1 V), sufficient to drive other 1.8 V logic inputs.

Is the IOFF function active when VCC is ramping during power-up?

Yes. IOFF activates when VCC falls below ~0.8 V and remains active until VCC exceeds ~1.2 V. During power-up, outputs stay in high-impedance state until VCC stabilizes within operating range, preventing glitch-induced contention on shared buses or unintended actuation of downstream loads.