Nexperia USA Inc. 74LVC1G19GM,132

Overview

74LVC1G19GM,132 from Nexperia is a single 1-of-2 decoder/demultiplexer with common active-low enable (E), true (1Y) and complement (2Y) outputs, operating from 1.65 V to 5.5 V supply, featuring ±24 mA output drive at 3.0 V, IOFF partial power-down protection, and Schmitt-trigger inputs for noise immunity - used in level-shifting logic control paths in portable I/O expanders and sensor interface modules.

For engineers reviewing the 74LVC1G19GM,132 datasheet, 74LVC1G19GM,132 pinout, 74LVC1G19GM,132 application, or 74LVC1G19GM,132 equivalent, key selection criteria include its dual-output demux function with independent polarity, 1.65–5.5 V wide VCC range enabling mixed-voltage system interfacing, guaranteed operation up to +125 °C, and XSON6 (SOT886) package compatibility with high-density PCB layouts.

Technical Context

This device implements combinational logic decoding: when E = LOW, input A passes to 1Y (non-inverted) and 2Y (inverted); when E = HIGH, both outputs go HIGH regardless of A. The Schmitt-trigger inputs accept slow-rising signals and tolerate noise up to ±0.3 V hysteresis across VCC ranges.

The IOFF circuit actively disables outputs during power-down by disconnecting internal paths when VCC = 0 V, limiting backflow current to ±2 μA - critical for hot-swap and multi-rail sequencing applications. Input overvoltage tolerance to 5.5 V allows safe interfacing with 5 V logic while powered from 1.8 V or 3.3 V rails.

Key Specifications

Pinout & Package

XSON6 plastic extremely thin small outline package (SOT886), no leads, 6 terminals, body dimensions 1.0 mm × 1.45 mm × 0.5 mm, thermal pad optional, moisture sensitivity level MSL3.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 1-of-2 decoder/demultiplexer applications.

Compared with SN74LVC1G19DBVR, the 74LVC1G19GM,132 saves >70% board area and improves thermal performance in dense layouts; compared with 74AUP1G19GM,132, it adds 5 V tolerance and higher drive strength at the cost of slightly higher quiescent current - making it the sole choice for mixed-voltage industrial control.

Availability

74LVC1G19GM,132 is available at Aetrix Electronics and suitable for industrial sensor interfaces, portable device I/O expansion, automated test equipment signal routing, and power sequencing control logic requiring stable component supply across extended temperature and mixed-voltage conditions.

Supply support for 74LVC1G19GM,132 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 focus on efficiency, reliability, and miniaturization for industrial, automotive, and consumer electronics.

The 74LVC1G19 belongs to Nexperia's LVC logic family - designed specifically for low-voltage, high-noise-immunity, mixed-supply digital interfacing in space-constrained and thermally demanding applications.

FAQ

Can 74LVC1G19GM,132 operate with VCC = 1.65 V while accepting 3.3 V input signals?

Yes. Its inputs are overvoltage tolerant up to 5.5 V regardless of VCC level. At VCC = 1.65 V, VIH is guaranteed ≥0.65 × VCC (≥1.07 V) and VIL ≤0.35 × VCC (≤0.58 V), so a 3.3 V input is safely recognized as HIGH with full noise margin. This enables direct connection to higher-voltage peripherals without level shifters.

What happens to outputs when VCC is removed but input signals remain active?

The IOFF circuit activates automatically when VCC = 0 V, disabling internal output drivers and limiting output leakage to ±2 μA maximum - effectively isolating the device from back-current flow. Both 1Y and 2Y enter a high-impedance-like state, preventing unintended loading of upstream or downstream circuits during partial power-down.

Is the 74LVC1G19GM,132 pinout compatible with other SOT886 logic devices?

Yes - the SOT886 (XSON6) package has standardized 0.5 mm pitch and terminal layout per JEDEC MO-252. Pin 1 (A) is bottom-left under marking code; pins follow clockwise order: A–GND–E–2Y–VCC–1Y. This matches pinouts of 74LVC1G00, 74LVC1G02, and 74LVC1G04 in same package, enabling footprint reuse across basic logic functions.

Does this device support hot-swap insertion into a live backplane?

It supports controlled hot-swap via IOFF and overvoltage-tolerant inputs, but requires external series resistors on all inputs/outputs during insertion to limit inrush current and transient coupling. The device itself does not include bus-hold or precharge circuitry, so system-level design must ensure VCC ramps before signal application and manage floating inputs during transition phases.