Nexperia USA Inc. 74LVC3G17GF,115

Overview

74LVC3G17GF,115 from Nexperia is a triple non-inverting Schmitt trigger buffer with 5 V tolerant inputs, designed for signal conditioning in mixed-voltage digital systems. It operates from 1.65 V to 5.5 V supply, delivers ±24 mA output drive at 3.0 V, and features IOFF circuitry for partial power-down protection. Used in noise-prone interface translation between 3.3 V and 5 V logic domains.

For engineers reviewing the 74LVC3G17GF,115 datasheet, 74LVC3G17GF,115 pinout, 74LVC3G17GF,115 application, or 74LVC3G17GF,115 equivalent, key selection criteria include Schmitt-trigger hysteresis (min 0.40 V at 3.0 V), 5.5 V input overvoltage tolerance, XSON8 package footprint (1.35 × 1.0 × 0.5 mm), -40 °C to +125 °C operating range, and IOFF-enabled bus hold during power sequencing.

Technical Context

This device implements three independent non-inverting Schmitt-trigger buffers in a single XSON8 package. Each channel provides hysteresis (VH = 0.40–1.40 V depending on VCC) to reject noise on slow or noisy input signals, with separate positive-going (VT+) and negative-going (VT-) thresholds defined per supply voltage.

The IOFF circuit ensures outputs are high-impedance when VCC = 0 V, preventing backflow current during partial power-down. Inputs tolerate up to 5.5 V regardless of VCC level, enabling direct interfacing with legacy 5 V TTL or CMOS sources while powered from 1.65–5.5 V supplies.

Key Specifications

Pinout & Package

XSON8 package (SOT1089): extremely thin small outline, no leads, 8 terminals, body size 1.35 mm × 1.0 mm × 0.5 mm, pin 1 index located at lower-left corner below marking "VV".

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC3G17DCUR, the 74LVC3G17GF,115 offers superior board density and thermal performance in high-ambient environments; compared with 74LVC1G17GW,125, it reduces component count and routing complexity for triple-buffer requirements.

Availability

74LVC3G17GF,115 is available at Aetrix Electronics and suitable for industrial sensor interfaces, USB-C power delivery control, automotive body control modules, and IoT edge node wake-up circuits requiring stable component supply across extended temperature ranges.

Supply support for 74LVC3G17GF,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 for automotive, industrial, and consumer applications.

The 74LVC series targets low-voltage, high-noise-immunity digital interface applications, emphasizing robustness in mixed-supply systems and extended-temperature operation.

FAQ

Can 74LVC3G17GF,115 be used with a 1.65 V supply and 5 V input signals simultaneously?

Yes. The device is explicitly rated for 5.5 V input tolerance across its full 1.65–5.5 V supply range. When VCC = 1.65 V, inputs may swing from 0 V to 5.5 V without damage or latch-up, making it ideal for translating 5 V signals into 1.8 V logic domains. This capability is verified per JESD8-7 and confirmed in Table 5 (Limiting Values) and Table 6 (Operating Conditions).

What is the minimum hysteresis voltage at 3.0 V supply, and how does it improve noise immunity?

The minimum hysteresis voltage (VH) is 0.40 V at VCC = 3.0 V, calculated as VT+ − VT− (1.30 V − 0.90 V). This 400 mV window ensures input signals must change by at least this amount to toggle output state, rejecting noise spikes, EMI-induced glitches, or slow-rising edges common in motor drives or long cable runs. Measured per Table 8 and validated across -40 °C to +125 °C.

Does the IOFF feature require external control, or is it automatic during power loss?

IOFF is fully automatic and requires no external enable signal. When VCC drops to 0 V, internal circuitry forces all outputs into high-impedance state, limiting back-current to ≤±2 μA (per Table 7). This behavior is intrinsic to the silicon design and functions without configuration - critical for hot-swap, power sequencing, or fail-safe shutdown in multi-rail systems.

How does the XSON8 package (SOT1089) of 74LVC3G17GF,115 differ mechanically from SOT833-1?

The SOT1089 XSON8 measures 1.35 mm × 1.0 mm × 0.5 mm, while SOT833-1 is 1.0 mm × 1.95 mm × 0.5 mm. SOT1089 has a square footprint optimized for dense routing and improved thermal dissipation (4.0 mW/K derating above 88 °C), whereas SOT833-1's elongated shape may complicate fanout in tight layouts. Pin numbering and terminal mapping are identical per Fig. 5.