Nexperia USA Inc. 74LVC1G19GF,132

Overview

74LVC1G19GF,132 from Nexperia is a single 1-of-2 decoder/demultiplexer with active-low enable, operating across 1.65 V to 5.5 V supply, delivering ±24 mA output drive at 3.0 V, featuring Schmitt-trigger inputs for noise immunity and IOFF circuitry for partial power-down protection. It routes input A to true (1Y) and complement (2Y) outputs when E is LOW, used in level-shifting address decoding and signal routing in mixed-voltage microcontroller I/O expansion.

For engineers reviewing the 74LVC1G19GF,132 datasheet, 74LVC1G19GF,132 pinout, 74LVC1G19GF,132 application, or 74LVC1G19GF,132 equivalent, key selection criteria include its dual-output demux function, 5.0 ns max propagation delay at 5 V, overvoltage-tolerant 5.5 V inputs, -40 °C to +125 °C operation, and compatibility with both 3.3 V and 5 V logic systems.

Technical Context

This device implements combinational logic decoding: input A selects which of two complementary outputs (1Y = A, 2Y = ¬A) is enabled, conditioned by active-low enable E. When E = LOW, outputs reflect A and its inverse; when E = HIGH, both outputs go HIGH regardless of A.

Its IOFF feature disables outputs during power-down to prevent backflow current, while Schmitt-trigger inputs tolerate slow-rising signals and improve noise margin. The design supports mixed-voltage interfacing - inputs accept up to 5.5 V independent of VCC, enabling direct connection to 5 V sources even when powered at 1.8 V or 3.3 V.

Key Specifications

Pinout & Package

SOT891 (XSON6) package: plastic extremely thin small outline, no leads, 6-terminal surface-mount, body size 1.2 × 1.2 × 0.35 mm, thermal pad optional, pin 1 marked by notch or dot in lower-left corner.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC1G19DBVR and 74AUP1G19GW,125, the 74LVC1G19GF,132 uniquely combines 5.5 V input tolerance, IOFF protection, and ±24 mA drive in an XSON6 footprint - making it the sole choice for robust, mixed-voltage, high-drive demuxing where space and reliability are critical.

Availability

74LVC1G19GF,132 is available at Aetrix Electronics and suitable for industrial control panels, automotive body electronics modules, and medical diagnostic equipment requiring stable component supply across extended temperature and mixed-voltage conditions.

Supply support for 74LVC1G19GF,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 focused on essential efficiency technologies, delivering high-performance logic, analog, and discrete components with emphasis on reliability, energy efficiency, and manufacturability.

The 74LVC1G19 belongs to Nexperia's LVC (Low-Voltage CMOS) logic family, designed specifically for low-power, high-speed, mixed-voltage digital interfacing in space-constrained industrial and consumer applications.

FAQ

What is the maximum clock/data frequency supported by the 74LVC1G19GF,132?

The 74LVC1G19GF,132 is not a clocked device - it is purely combinational logic with no internal clock. Its usable signal frequency depends on propagation delay and load capacitance. With typical CPD = 18.9 pF and 50 pF load, maximum toggle rate is ~100 MHz under 3.3 V operation, limited by tpd ≤5.2 ns and output rise/fall times.

Can the 74LVC1G19GF,132 safely interface a 5 V microcontroller output to a 1.8 V FPGA input?

Yes - its inputs tolerate up to 5.5 V regardless of VCC, so a 5 V MCU output can drive pin A or E directly. However, outputs swing from GND to VCC, so to drive a 1.8 V FPGA input, VCC must be set to 1.8 V. The device will correctly translate 5 V logic levels down to 1.8 V-compatible outputs.

Does the 74LVC1G19GF,132 support hot-swap or live-insertion scenarios?

Yes - the integrated IOFF circuitry disables outputs when VCC = 0 V, preventing back-current flow from live inputs (up to 5.5 V) into a powered-down system. This meets IEC 61000-4-2 Level 4 ESD requirements and enables safe insertion into partially powered backplanes or modular systems.

Is there a thermal pad on the SOT891 (XSON6) package of the 74LVC1G19GF,132?

No - the SOT891 package does not include an exposed thermal pad. Thermal dissipation relies on PCB copper area connected to GND and VCC pins. For continuous operation at full drive (±24 mA), maintain ≥25 mm² of 1-oz copper pour per power pin and limit ambient temperature to ≤85 °C per derating curves in the datasheet.