Nexperia USA Inc. 74LVC3G34GN,115

Overview

74LVC3G34GN,115 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 space-constrained mixed-voltage systems. It features IOFF partial power-down protection, ±24 mA output drive at 3.0 V, and operates across -40 °C to +125 °C. Used in portable interface bridging, sensor signal conditioning, and FPGA I/O expansion.

For engineers reviewing the 74LVC3G34GN,115 datasheet, 74LVC3G34GN,115 pinout, 74LVC3G34GN,115 application, or 74LVC3G34GN,115 equivalent, key selection criteria include its 1.65 V to 5.5 V supply range, overvoltage-tolerant 5.5 V inputs, IOFF-enabled hot-swap capability, and XSON8 (SOT1116) 1.2 × 1.0 × 0.35 mm package for ultra-dense PCB layouts.

Technical Context

This device implements three independent CMOS buffer gates with hysteresis on all inputs, enabling robust operation with slow-rising signals common in mechanical switches or long traces. Its IOFF circuit actively disables outputs when VCC = 0 V, blocking backflow current during partial system power-down.

The logic function is strictly non-inverting (nY = nA), with propagation delays as low as 0.5 ns at 5.0 V and 5.1 ns max at 3.3 V. Input thresholds are adaptive-VIH = 0.7VCC and VIL = 0.3VCC at 4.5–5.5 V, while fixed thresholds apply at lower voltages per JEDEC standards JESD8-7/8-5/8C/36.

Key Specifications

Pinout & Package

XSON8 package (SOT1116): extremely thin small outline, no leads, 8 terminals, body size 1.2 × 1.0 × 0.35 mm, thermal pad not present, pin 1 marked by index area below marking code "YA".

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC3G34DCUR and 74LVC3G34GT,115, the 74LVC3G34GN,115 delivers the smallest PCB footprint (1.2 × 1.0 mm) and lowest profile (0.35 mm), making it optimal for ultra-thin portable electronics where vertical stack height and area are constrained.

Availability

74LVC3G34GN,115 is available at Aetrix Electronics and suitable for industrial sensor interfaces, FPGA I/O expansion, portable USB-C docking hubs, and automotive body control modules requiring stable component supply across extended temperature ranges.

Supply support for 74LVC3G34GN,115 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 components, serving automotive, industrial, and consumer markets with scalable manufacturing and rigorous quality systems.

The 74LVC3G34 belongs to Nexperia's LVC (Low-Voltage CMOS) logic family, engineered for low-power, mixed-voltage interoperability in space- and power-sensitive digital systems - especially where level translation, noise immunity, and partial power-down are mandatory.

FAQ

What is the maximum input voltage the 74LVC3G34GN,115 can tolerate when powered from 1.65 V?

The device tolerates inputs up to 5.5 V regardless of supply voltage - confirmed in Table 5 (Limiting Values) and Section 2 (Features). This allows safe connection of 5 V signals to a 1.65 V–powered system without external clamping diodes or resistors.

Does the 74LVC3G34GN,115 support hot-swap or live-insertion scenarios?

Yes - its IOFF circuitry disables outputs when VCC = 0 V, limiting back-current to ±2 μA (Table 7). This protects upstream and downstream circuitry during partial power-down, enabling use in hot-pluggable modules and modular power architectures.

How does the Schmitt-trigger input improve performance in noisy environments?

Schmitt-trigger inputs provide hysteresis (typically >40 % of VCC), meaning VIH and VIL thresholds differ significantly. This prevents multiple toggles on slowly rising/falling signals - such as those from mechanical switches or long PCB traces - ensuring clean, single-edge transitions to downstream logic.

Can the 74LVC3G34GN,115 drive a 50 pF load at 10 MHz while maintaining timing integrity?

Yes - with CPD = 14 pF (Table 8) and tpd ≤ 5.1 ns at 3.3 V, the device easily meets timing for 10 MHz (100 ns period) signals driving 50 pF loads. Dynamic power is calculated as PD = CPD × VCC² × fi × N, confirming sub-mW dissipation at this frequency.