NXP Semiconductors 74ALVC04BQ,115

Overview

74ALVC04BQ,115 from Nexperia is a hex inverter with Schmitt-trigger inputs, IOFF partial power-down capability, 1.65 V to 3.6 V supply range, -40 °C to +125 °C operating temperature, and DHVQFN14 (SOT762-1) package. It provides six independent CMOS inverters for signal conditioning in low-voltage digital logic interfaces, including level translation between 1.8 V/2.5 V/3.3 V domains.

For engineers reviewing the 74ALVC04BQ,115 datasheet, 74ALVC04BQ,115 pinout, 74ALVC04BQ,115 application, or 74ALVC04BQ,115 equivalent, key selection criteria include IOFF-enabled bus isolation during power sequencing, Schmitt-trigger noise immunity on slow-rising control signals, guaranteed propagation delay ≤3.2 ns at 3.3 V, and thermal-enhanced QFN packaging for high-density PCB layouts.

Technical Context

This device implements six independent inverting buffers with Schmitt-trigger input thresholds-VIH = 0.65×VCC (min) and VIL = 0.35×VCC (max) at 1.65–1.95 V-enabling robust operation with slow or noisy input edges. The IOFF circuit actively disables outputs when VCC = 0 V, blocking backflow current up to ±50 mA per pin.

It complies with JEDEC standards JESD8-7 (1.65–1.95 V), JESD8-5 (2.3–2.7 V), and JESD8C/JESD36 (2.7–3.6 V), and supports dynamic operation with CPD = 26 pF per inverter and tpd ≤3.2 ns (VCC = 3.0–3.6 V, -40 °C to +125 °C).

Key Specifications

Pinout & Package

DHVQFN14 (SOT762-1) package: 2.5 × 3.0 × 0.85 mm body, no leads, exposed thermal pad (non-soldered by default), 14 terminals, pin 1 index area marked.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar hex inverter applications.

Compared with SN74LVC04APWR and 74LVC1G04GW,125, the 74ALVC04BQ,115 uniquely combines Schmitt-trigger noise immunity, IOFF protection, extended temperature rating, and thermally enhanced QFN packaging-making it the only choice for robust, high-density, multi-rail industrial control logic.

Availability

74ALVC04BQ,115 is available at Aetrix Electronics and suitable for industrial sensor interfaces, power sequencing control, legacy bus isolation, and low-power logic translation requiring stable component supply across extended temperature ranges and partial power-down reliability.

Supply support for 74ALVC04BQ,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 delivering high-performance logic, discrete, and MOSFET solutions optimized for efficiency, reliability, and miniaturization in industrial and automotive applications.

The 74ALVC04 belongs to Nexperia's Advanced Low-Voltage CMOS (ALVC) logic family, engineered specifically for robust signal integrity and power sequencing safety in multi-voltage embedded systems.

FAQ

Can the 74ALVC04BQ,115 operate with VCC = 1.65 V while accepting 3.3 V inputs?

Yes. Its overvoltage-tolerant inputs accept up to 3.6 V regardless of VCC level, enabling safe interfacing with higher-voltage peripherals even at minimum supply voltage. This is confirmed in Table 4 (Limiting Values) and Table 5 (Recommended Operating Conditions) of the datasheet, where VI(max) = 3.6 V is explicitly specified independent of VCC.

What is the purpose of the exposed thermal pad on the DHVQFN14 package?

The exposed pad (terminal 1 index area) is a thermal enhancement feature-not electrically connected-and has no mandatory solder requirement. If soldered, it must remain floating or connect to GND to avoid unintended coupling; its primary role is heat conduction from the die to the PCB, improving thermal resistance by ~20 °C/W versus leaded packages.

How does the IOFF function behave during power-down sequences?

When VCC drops to 0 V, the IOFF circuitry actively disables all six outputs, limiting leakage current to ±10 μA maximum (per Table 6). This prevents backflow current from live buses into the unpowered device-a critical safeguard during hot-swap or staggered power-up/down in multi-rail systems.

Is the Schmitt-trigger hysteresis adjustable or fixed?

The hysteresis is fixed and process-defined: VIH(min) = 0.65×VCC and VIL(max) = 0.35×VCC across the full 1.65–3.6 V supply range. No external components or configuration pins modify this behavior-it is inherent to the input stage design and verified per JESD78 latch-up and static characterization testing.