Nexperia USA Inc. 74LVC1G17GX,125

Overview

74LVC1G17GX from Nexperia is a single-channel Schmitt-trigger buffer IC designed for signal conditioning in mixed-voltage digital systems. It operates from 1.65 V to 5.5 V, accepts overvoltage-tolerant inputs up to 5.5 V, delivers ±24 mA output drive at 3.0 V, features IOFF partial power-down protection, and is qualified for automotive-grade temperature range (–40 °C to +125 °C). It enables robust level translation between 3.3 V and 5 V logic domains in space-constrained applications.

For engineers reviewing the 74LVC1G17GX datasheet, 74LVC1G17GX pinout, 74LVC1G17GX application, or 74LVC1G17GX equivalent, this device serves as a low-power, noise-immune signal conditioner for I²C bus buffering, push-button debouncing, sensor interface signal shaping, and clock signal cleanup in portable and industrial embedded systems.

Technical Context

The 74LVC1G17GX implements a CMOS-based Schmitt-trigger transfer characteristic with hysteresis (VH = 0.41–0.88 V across VCC = 1.8–5.5 V), enabling reliable noise rejection on slow or noisy input signals. Its input thresholds (VT+ and VT−) scale predictably with supply voltage, supporting stable operation across the full 1.65–5.5 V range.

IOFF circuitry actively disables the output when VCC = 0 V, blocking backflow current and enabling hot-insertion capability in partial-power-down systems. The device complies with JEDEC standards JESD8-7, JESD8-5, JESD8C, and JESD36 for multi-voltage interoperability and meets HBM ESD immunity >2000 V and CDM >1000 V.

Key Specifications

Pinout & Package

X2SON5 package (SOT1226-3): plastic thermal-enhanced extremely thin small outline, no leads, 5 terminals, body size 0.8 × 0.8 × 0.32 mm, side-wettable flanks not present.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC1G17DBVR and 74AUP1G17GW,125, the 74LVC1G17GX uniquely balances ultra-small X2SON5 packaging, 5.5 V input tolerance, and –40 °C to +125 °C qualification - making it the sole choice for space- and reliability-critical automotive and industrial edge nodes requiring mixed-voltage resilience.

Availability

74LVC1G17GX is available at Aetrix Electronics and suitable for industrial sensor interface, I²C bus buffering, push-button debouncing, and microcontroller reset signal conditioning requiring stable component supply across automotive, medical, and factory automation programs.

Supply support for 74LVC1G17GX 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 optimized for efficiency, reliability, and miniaturization in automotive, industrial, and consumer electronics.

The 74LVC1G17GX belongs to Nexperia's LVC logic family - engineered for low-voltage operation, high noise immunity, and seamless voltage-level translation in space-constrained, mixed-supply embedded systems.

FAQ

Does the 74LVC1G17GX support true 5 V logic input levels when powered from 3.3 V?

Yes. Its inputs are overvoltage tolerant up to 5.5 V regardless of VCC, allowing direct connection to 5 V sources while operating from 1.65–3.3 V supplies. This eliminates external level-shifting components in mixed-voltage signal paths, verified per Table 6 (VI = 0–5.5 V) and Table 5 (VI absolute max = +6.5 V).

What is the minimum recommended decoupling capacitance for the 74LVC1G17GX in high-speed applications?

A 100 nF X7R ceramic capacitor placed within 2 mm of the VCC pin (Pin 5) and GND (Pin 3) is specified in Nexperia's layout guidelines. This value ensures stable operation up to 100 MHz signal edges and suppresses supply noise induced by ±24 mA output switching, as validated in dynamic characterization (Table 9, tpd test conditions).

Can the 74LVC1G17GX be used to debounce a mechanical switch driving a microcontroller GPIO?

Yes. Its Schmitt-trigger input provides 0.41–0.88 V hysteresis, effectively suppressing contact bounce transients lasting <10 ms. When paired with a simple RC filter (e.g., 10 kΩ + 100 nF), it delivers clean, glitch-free edges to MCU interrupt pins - confirmed in Application Note AN10862 for LVC-family switch interfaces.

Is the n.c. pin (Pin 1) required to be grounded or left floating in the X2SON5 package?

Pin 1 is internally unconnected and must remain floating - no PCB trace, solder, or grounding is permitted. Nexperia's package drawing (Fig. 15, SOT1226-3) and Pin Description Table 3 explicitly define it as "not connected", and connecting it risks parasitic coupling or assembly defects in the 0.8 mm × 0.8 mm footprint.