Nexperia USA Inc. 74LVC1G19GM,115

Overview

74LVC1G19GM,115 from Nexperia is a single 1-of-2 decoder/demultiplexer with active-low enable (E), delivering true (1Y) and complement (2Y) outputs from input A. It operates across 1.65 V to 5.5 V supply, supports mixed-voltage interfacing (3.3 V/5 V), and features Schmitt-trigger inputs for noise immunity. Used in address decoding, signal routing, and logic-level translation in compact embedded control systems.

For engineers reviewing the 74LVC1G19GM,115 datasheet, 74LVC1G19GM,115 pinout, 74LVC1G19GM,115 application, or 74LVC1G19GM,115 equivalent, key selection criteria include its IOFF-enabled partial power-down capability, ±24 mA output drive at 3.0 V, -40 °C to +125 °C temperature range, and XSON6 (SOT886) 1.0 × 1.45 × 0.5 mm package with 6 terminals.

Technical Context

This device implements combinational logic decoding: when E is LOW, it routes A to 1Y (non-inverted) and !A to 2Y (inverted); when E is HIGH, both outputs go HIGH. Its Schmitt-trigger inputs accept slow-rising/falling signals without oscillation, enabling robust operation in noisy environments.

The IOFF circuit actively disables outputs during power-down, blocking backflow current when VCC = 0 V - critical for hot-swap and multi-rail system integrity. Input overvoltage tolerance up to 5.5 V allows direct interface with 5 V logic while powered from 1.65–3.3 V supplies.

Key Specifications

Pinout & Package

XSON6 plastic extremely thin small outline package (SOT886), no leads, 6-terminal surface-mount device with body dimensions 1.0 mm × 1.45 mm × 0.5 mm and wettable flank terminals for automated optical inspection.

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,115 offers superior thermal performance and AOI compatibility in space-constrained layouts; versus 74AUP1G19GM,115, it trades higher quiescent current for stronger output drive and faster propagation - critical for signal integrity in dense mixed-voltage routing.

Availability

74LVC1G19GM,115 is available at Aetrix Electronics and suitable for industrial sensor interfaces, portable device power sequencing, and IoT edge node signal conditioning requiring stable component supply across extended temperature ranges and compact packaging.

Supply support for 74LVC1G19GM,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 solutions for industrial, computing, and consumer markets.

The 74LVC1G19 belongs to Nexperia's LVC (Low-Voltage CMOS) logic family, engineered for robust mixed-voltage interoperability, low dynamic power, and enhanced ESD resilience in space- and power-constrained embedded systems.

FAQ

Does 74LVC1G19GM,115 support true high-impedance outputs?

No. When E is HIGH, both 1Y and 2Y drive HIGH actively - they do not enter high-impedance (Hi-Z) state. This differs from bus-oriented demuxes; here, the HIGH-enable state serves as an output disable via forced logic HIGH, not tri-state control.

Can 74LVC1G19GM,115 be used with VCC = 1.65 V and 5 V inputs?

Yes. Inputs tolerate up to 5.5 V regardless of VCC level, allowing direct connection to 5 V sources even when powered from 1.65 V. Output VOH at 1.65 V is guaranteed ≥0.65×VCC (≥1.08 V), sufficient to drive compatible 1.8 V logic inputs.

What is the maximum capacitive load this device can drive reliably?

Based on dynamic characteristics and CPD = 18.9 pF, the device maintains specified tpd up to 50 pF load capacitance (per Table 10 test conditions). Driving >50 pF may increase propagation delay and reduce noise margin - add series termination if routing to heavy loads.

How does IOFF behave when only VCC is ramped down while inputs remain at 5 V?

IOFF activates when VCC reaches 0 V, limiting output leakage to ±2 μA maximum even with 5.5 V applied to A, E, 1Y, or 2Y. However, during VCC ramp-down (e.g., 0.1 V to 1.0 V), outputs may briefly enter undefined states - ensure external pull-downs if deterministic behavior is required mid-power-down.