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Home > Products > Integrated Circuits (ICs) > Logic > Gates and Inverters

Nexperia USA Inc. 74ALVC14BQ,115

Name: 74ALVC14BQ,115
Brand: Nexperia USA Inc.
SKU: 74ALVC14BQ,115
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 74ALVC14BQ,115

Manufacturer:: Nexperia USA Inc.

Category:: Gates and Inverters

Package:: 14-VFQFN Exposed Pad

Datasheet:: 74ALVC14BQ,115.pdf

Description:: IC INVERTER 6CH 1-INP 14DHVQFN

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Product details

Overview

74ALVC14BQ,115 from Nexperia is a hex inverting Schmitt trigger IC designed for noise-immune signal conditioning in low-voltage digital systems. It features six independent inverters with hysteresis (VT+ = 1.1–2.0 V, VT− = 0.3–1.2 V at VCC = 3.0–3.6 V), IOFF partial power-down protection, and operates across 1.65 V to 3.6 V supply. Used in clock buffering, debouncing, and waveform shaping in industrial control interfaces.

For engineers reviewing the 74ALVC14BQ,115 datasheet, 74ALVC14BQ,115 pinout, 74ALVC14BQ,115 application, or 74ALVC14BQ,115 equivalent, key selection criteria include Schmitt-trigger hysteresis width (VH = 0.3–1.2 V), IOFF leakage (< ±10 μA at VCC = 0 V), propagation delay (1.0–3.9 ns at VCC = 3.0–3.6 V), and DHVQFN14 thermal-enhanced packaging for high-density PCB layouts.

Technical Context

This device implements six independent CMOS Schmitt-trigger inverters with rail-to-rail input tolerance up to 3.6 V and output drive capability of ±24 mA at VCC = 3.0 V. The IOFF circuit actively disables outputs during power-down, blocking backflow current when VCC = 0 V.

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 operation from −40 °C to +125 °C. Input hysteresis enables reliable switching in noisy environments, while CPD = 25 pF enables accurate dynamic power estimation.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage	1.65 V to 3.6 V - Enables direct interface with 1.8 V, 2.5 V, 3.3 V logic families without level shifters.
Propagation Delay	1.0–3.9 ns at VCC = 3.0–3.6 V - Supports >250 MHz signal conditioning in timing-critical paths.
Hysteresis Voltage (VH)	0.3–1.2 V - Provides noise immunity against transients up to ±600 mV on input lines.
IOFF Leakage Current	< ±10 μA at VCC = 0 V - Prevents backfeed current in hot-swap or partial-power-down systems.
Output Drive	±24 mA at VCC = 3.0 V - Drives 50 Ω transmission lines or multiple 74ALVC inputs directly.
Input Clamping	±50 mA - Withstands ESD-induced transient currents without latch-up (JESD78 Class II.A > 250 mA).
Operating Temperature	−40 °C to +125 °C - Qualified for under-hood automotive modules and industrial motor drives.

Pinout & Package

DHVQFN14 (SOT762-1) package: 2.5 × 3.0 × 0.85 mm body, no leads, thermally enhanced exposed pad (non-soldered or floating/grounded per design), 14 terminals, pin 1 index area marked.

Pin/Terminal	Circuit Role	Design Meaning
1A, 2A, 3A, 4A, 5A, 6A	Input	Six independent Schmitt-trigger inputs accepting 0–3.6 V; tolerant of overvoltage beyond VCC.
1Y, 2Y, 3Y, 4Y, 5Y, 6Y	Output	Inverted, hysteresis-shaped outputs; each capable of sinking or sourcing ±24 mA.
GND (Pin 7)	Ground Reference	Primary 0 V reference for all I/O and internal circuitry; must be low-impedance for noise immunity.
VCC (Pin 14)	Supply Rail	Single positive supply input; powers all six inverters and IOFF control logic.
GND (Pin 12)	Secondary Ground Terminal	Additional ground connection for improved thermal dissipation and reduced ground bounce in high-speed switching.

Key Features

Feature	Design Value
IOFF Partial Power-Down	Enables live insertion and system-level power sequencing by disabling outputs when VCC = 0 V.
Schmitt-Trigger Inputs	Guaranteed hysteresis (VH ≥ 0.3 V) eliminates chatter on slow or noisy signals like mechanical switch inputs.
Overvoltage-Tolerant Inputs	Accepts up to 3.6 V regardless of VCC setting - simplifies mixed-voltage board interfacing.
JEDEC Compliance	Fully compliant with JESD8-7/5/36 - ensures interoperability with industry-standard 1.8 V/2.5 V/3.3 V logic families.
ESD Robustness	HBM > 2000 V and CDM > 1000 V - reduces need for external protection in handheld and industrial I/O designs.

Applications

Industrial Pushbutton Debouncing

Low-Voltage Clock Buffering

Use Scenario: Mechanical pushbuttons in PLC I/O modules generate contact bounce lasting 5–20 ms.

IC Role / Device Role / Timing Role: Each inverter acts as an independent debouncer; hysteresis rejects sub-millisecond noise while ensuring clean edge transitions.

Use Value: Eliminates need for RC filters or firmware delays; reduces BOM count and improves real-time response consistency across six channels.

Use Scenario: Distributing a 10–50 MHz clock from an MCU to multiple peripherals on a 3.3 V rail.

IC Role / Device Role / Timing Role: Inverter configured as non-inverting buffer (via double inversion); Schmitt input cleans jitter and amplitude variation.

Use Value: Maintains <1.0 ns pulse skew between outputs; supports fan-out of ≥6 loads without signal integrity degradation.

Relaxation Oscillator Generation

RS-232 Level Translation Interface

Use Scenario: Generating variable-frequency square waves using R-C feedback on one inverter stage.

IC Role / Device Role / Timing Role: Single gate forms oscillator core; hysteresis defines precise threshold crossing points for stable frequency.

Use Value: Achieves 1 kHz–1 MHz range with <±5% stability over temperature; requires only two passive components per oscillator.

Use Scenario: Converting TTL-level UART signals (0/3.3 V) to RS-232-compatible levels (±3–±15 V) using external charge pumps.

IC Role / Device Role / Timing Role: Signal conditioner isolating and sharpening edges before level-shifting stages.

Use Value: Tolerates slow-rising RS-232 driver outputs; prevents metastability in UART receivers due to input slew rate limitations.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
SN74LVC14APWR	Wider operating range (1.65–5.5 V); no IOFF; higher ICC (max 10 μA vs. 100 nA typical)	Lacks partial power-down support; unsuitable for hot-swap or multi-rail sequencing	Select when interfacing with 5 V legacy logic and IOFF is not required.
74LVC1G14GW,125	Single-channel SC-70 package; identical VCC range and hysteresis but no multi-gate integration	Requires six discrete packages for same functionality; increases layout area and assembly cost	Choose only for space-constrained single-signal conditioning where gate count is minimal.

Compared with SN74LVC14APWR and 74LVC1G14GW,125, the 74ALVC14BQ,115 uniquely combines IOFF-enabled power sequencing, DHVQFN14 thermal efficiency, and guaranteed Schmitt thresholds across −40 °C to +125 °C - making it optimal for compact, robust industrial control nodes requiring deterministic power-down behavior.

Availability

74ALVC14BQ,115 is available at Aetrix Electronics and suitable for industrial automation interfaces, automotive body control modules, and medical diagnostic equipment requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74ALVC14BQ,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, analog, and MOSFET solutions, with manufacturing rooted in process technology leadership and automotive-grade quality systems.

The 74ALVC series targets low-voltage, low-power digital interfacing in space-constrained and thermally demanding applications - emphasizing robustness, JEDEC compliance, and seamless integration into mixed-supply systems.

FAQ

Can the 74ALVC14BQ,115 operate reliably at 1.65 V supply?

Yes. The device is fully characterized down to 1.65 V per JESD8-7, with guaranteed propagation delay ≤4.4 ns and VIH/VIL thresholds scaled accordingly. Input hysteresis remains functional, and IOFF leakage stays below ±10 μA even at minimum VCC.

Is the exposed thermal pad on the DHVQFN14 package electrically connected?

No. The exposed pad (terminal 12) is a secondary GND terminal - not a thermal slug tied to die substrate. Per datasheet note (1), it has no electrical requirement to be soldered; if connected, it must remain floating or tied to GND to avoid parasitic coupling.

How does the IOFF feature behave when VCC is ramping during power-up?

IOFF activates only when VCC falls below ~0.8 V. During power-up, outputs remain high-impedance until VCC exceeds the internal enable threshold (~1.0 V), then transition to active state after power-on reset completes - preventing glitch generation on powered-down buses.

What is the maximum capacitive load the 74ALVC14BQ,115 can drive without exceeding tpd specs?

At VCC = 3.3 V, the device maintains tpd ≤3.4 ns driving 50 pF loads (per Table 9 test conditions). Driving >50 pF increases delay nonlinearly; for 100 pF, tpd rises to ~5.2 ns - still within functional margin but outside guaranteed spec limits.

74ALVC14BQ,115 Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: 74ALVC

Package/Case:: 14-VFQFN Exposed Pad

Packaging:: Tape & Reel (TR)

Product Status:: Active

Logic Type:: Inverter

Number of Circuits:: 6

Number of Inputs:: 1

Features:: Schmitt Trigger

Voltage - Supply:: 1.65V ~ 3.6V

Current - Quiescent (Max):: 10 µA

Current - Output High, Low:: 24mA, 24mA

Input Logic Level - Low:: 0.41V ~ 0.8V

Input Logic Level - High:: 1.24V ~ 2V

Max Propagation Delay @ V, Max CL:: 3.4ns @ 3.3V, 50pF

Operating Temperature:: -40°C ~ 85°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 14-DHVQFN (2.5x3)

74ALVC14BQ,115 FAQ

1.How can I place an order for 74ALVC14BQ,115 through Aetrix?

Please submit a Request for Quotation (RFQ) for 74ALVC14BQ,115 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for 74ALVC14BQ,115 reliable?

The price and inventory of 74ALVC14BQ,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74ALVC14BQ,115 is usually 5 days.

3.What payment methods are accepted for 74ALVC14BQ,115?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74ALVC14BQ,115 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 74ALVC14BQ,115?

74ALVC14BQ,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 74ALVC14BQ,115 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for 74ALVC14BQ,115?

For technical support, including 74ALVC14BQ,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74ALVC14BQ,115 requirements.

6.How does Aetrix verify that 74ALVC14BQ,115 is sourced from the original manufacturer or authorized distributors?

All 74ALVC14BQ,115 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that 74ALVC14BQ,115 meets industry standards.

7.What is the process for return or replacement of 74ALVC14BQ,115?

All 74ALVC14BQ,115 units undergo pre-shipment inspection (PSI). If there is an issue with 74ALVC14BQ,115, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The 74ALVC14BQ,115 part is unused and in its original packaging.

Return procedure for 74ALVC14BQ,115:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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