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

Nexperia USA Inc. 74AHCT14BQ-Q100,11

Name: 74AHCT14BQ-Q100,11
Brand: Nexperia USA Inc.
SKU: 74AHCT14BQ-Q100,11
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 74AHCT14BQ-Q100,11

Manufacturer:: Nexperia USA Inc.

Category:: Gates and Inverters

Package:: 14-VFQFN Exposed Pad

Datasheet:: 74AHCT14BQ-Q100,11.pdf

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

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Product details

Overview

74AHCT14BQ-Q100 from Nexperia is a hex inverting Schmitt trigger IC qualified to AEC-Q100 Grade 1 (−40 °C to +125 °C), featuring TTL-compatible inputs, 5.5 V overvoltage-tolerant inputs, 8.0 ns typical propagation delay at V_CC = 5.0 V/CL = 50 pF, and DHVQFN14 package with side-wettable flanks for AOI. It serves as noise-immune signal conditioning and waveform shaping in automotive body control modules.

For engineers reviewing the 74AHCT14BQ-Q100 datasheet, 74AHCT14BQ-Q100 pinout, 74AHCT14BQ-Q100 application, or 74AHCT14BQ-Q100 equivalent, key selection criteria include Schmitt-trigger hysteresis (1.4 V at V_CC = 4.5 V), input threshold compatibility with legacy 5 V TTL logic, automotive temperature range compliance, and DHVQFN thermal performance for space-constrained ECUs.

Technical Context

This device implements six independent inverting Schmitt-trigger buffers with asymmetric input thresholds: VT+ = 1.9 V and VT− = 0.5 V at V_CC = 4.5 V, yielding 1.4 V hysteresis for robust noise rejection. Each channel drives CMOS loads up to 50 pF with balanced t_PLH/t_PHL ≤ 9.0 ns across −40 °C to +125 °C.

Input clamping current is rated ±20 mA per pin under overvoltage conditions, and output drive capability is ±8.0 mA at V_CC = 4.5 V with VOL ≤ 0.44 V and VOH ≥ 3.80 V. The DHVQFN14 package provides low thermal resistance (9.6 mW/K derating above 98 °C) and supports automated optical inspection via side-wettable flanks.

Key Specifications

Parameter	Value and Actual Design Meaning
Function	Hex inverting Schmitt trigger with TTL-level inputs
Supply voltage	4.5 V to 5.5 V - ensures compatibility with 5 V automotive power rails
Propagation delay	9.0 ns max at V_CC = 5.0 V/CL = 50 pF - enables reliable timing in 10–20 MHz clock conditioning
Hysteresis voltage	1.4 V at V_CC = 4.5 V - rejects noise spikes up to ±700 mV on sensor or switch inputs
Input overvoltage tolerance	5.5 V absolute max - allows safe interfacing with 5 V signals even when V_CC is lower or absent
Operating temperature	−40 °C to +125 °C - qualified for engine bay and transmission control unit environments
ESD protection	HBM > 2000 V, CDM > 1000 V - meets automotive handling and assembly requirements

Pinout & Package

DHVQFN14 (SOT762-1) package: 2.5 × 3.0 × 0.85 mm body, no leads, 14 terminals, side-wettable flanks for solder-joint AOI, exposed thermal pad (non-electrical, optional GND connection).

Pin/Terminal	Circuit Role	Design Meaning
1A, 3A, 5A, 9A, 11A, 13A	Data input (six channels)	TTL-compatible Schmitt-trigger inputs; accept 0–5.5 V regardless of V_CC state
2Y, 4Y, 6Y, 8Y, 10Y, 12Y	Data output (six channels)	Inverted CMOS outputs; drive 50 pF loads with rail-to-rail swing and <9 ns delay
7	GND	Reference ground for all I/O and supply; required for proper Schmitt threshold referencing
14	V_CC	Primary supply pin; powers internal logic and output drivers; must be decoupled locally

Key Features

Feature	Design Value
AEC-Q100 Grade 1 qualification	Validated for automotive use across −40 °C to +125 °C ambient, including lifetime reliability testing
Side-wettable flanks	Enables 100% automated optical inspection of solder joints on bottom-terminated QFN, reducing post-reflow defect escapes
Overvoltage-tolerant inputs	Accepts up to 5.5 V regardless of V_CC level or presence - simplifies mixed-voltage board design and hot-swap resilience
High noise immunity	1.4 V hysteresis at 4.5 V supply - suppresses EMI-induced glitches on long harness runs or noisy chassis-grounded sensors
Low static current	Max 40 μA ICC at V_CC = 5.5 V - minimizes quiescent power in always-on vehicle subsystems like door modules

Applications

Body Control Module (BCM)

Engine Control Unit (ECU) Sensor Interface

Use Scenario: Debouncing mechanical door latch switches and window switch inputs subject to contact bounce and EMI.

IC Role / Device Role / Timing Role: Schmitt-trigger inverter providing clean, glitch-free digital edges to microcontroller GPIOs.

Use Value: Eliminates need for external RC filters or firmware debouncing, reducing BOM count and interrupt latency.

Use Scenario: Conditioning analog sensor signals (e.g., throttle position potentiometer wiper) before ADC sampling.

IC Role / Device Role / Timing Role: Hysteresis-based waveform shaping to convert slow-rising analog transitions into monotonic digital pulses.

Use Value: Prevents multiple edge detections during slow analog transitions, ensuring accurate position sampling timing.

Automotive Lighting Control

Transmission Control System

Use Scenario: Converting PWM dimming signals from body controller into robust gate-drive enable signals for LED driver ICs.

IC Role / Device Role / Timing Role: Inverting buffer with noise margin, translating 5 V logic to compatible levels for downstream drivers.

Use Value: Maintains signal integrity across PCB traces near high-current solenoid drivers, preventing false turn-on events.

Use Scenario: Isolating and cleaning gear selector switch signals in automatic transmission assemblies exposed to vibration and thermal cycling.

IC Role / Device Role / Timing Role: Input conditioner converting noisy mechanical switch closures into deterministic logic states for TCU safety monitoring.

Use Value: Enables SIL-2 compliant signal acquisition by rejecting transients that could corrupt gear position state machines.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
74AHC14BQ-Q100	CMOS-level inputs (VT+ = 3.15 V at V_CC = 4.5 V); higher hysteresis (1.65 V); wider V_CC range (2.0–5.5 V)	Better suited for mixed-voltage systems with 3.3 V logic domains; less tolerant of legacy 5 V TTL sources	Select when interfacing with 3.3 V MCUs or where lower supply voltage operation is required.
SN74LV14AQPWRQ1	Texas Instruments part; LV logic family; V_CC = 2.0–5.5 V; 10.5 ns max t_pd; different pinout (TSSOP-14 only)	Lacks side-wettable flanks; not qualified to same AEC-Q100 thermal profile (Grade 1 vs Grade 0); lower drive strength (±6 mA)	Consider only if DHVQFN footprint is unavailable and thermal derating margin exists above 98 °C.

Compared with 74AHCT14BQ-Q100, the 74AHC14BQ-Q100 offers broader supply flexibility but reduced TTL compatibility, while SN74LV14AQPWRQ1 trades AOI capability and thermal robustness for multi-voltage support - making the AHCT variant optimal for cost-sensitive, high-volume 5 V automotive signal conditioning where inspection yield and under-hood reliability are critical.

Availability

74AHCT14BQ-Q100 is available at Aetrix Electronics and suitable for automotive body control modules, engine management systems, and lighting control units requiring stable component supply across extended temperature ranges and full AEC-Q100 compliance.

Supply support for 74AHCT14BQ-Q100 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-enhancing components, delivering high-performance logic, discrete, and MOSFET solutions for automotive, industrial, and consumer markets.

The 74AHCT14-Q100 series belongs to Nexperia's automotive-qualified logic portfolio, designed specifically for noise-immune signal conditioning in harsh-temperature vehicle subsystems where reliability and interface compatibility are non-negotiable.

FAQ

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

No. The exposed pad (terminal 1 index area) is not electrically connected to any internal node. Per Nexperia's datasheet, it has no electrical or mechanical requirement to be soldered; if connected, it must remain floating or tied to GND - never to V_CC or signal nets.

Can 74AHCT14BQ-Q100 operate with V_CC = 3.3 V?

No. The 74AHCT14BQ-Q100 is TTL-input compatible and specified only for V_CC = 4.5 V to 5.5 V. At 3.3 V, input thresholds fall outside TTL specification (VIH min = 2.0 V), risking unreliable switching. Use 74AHC14BQ-Q100 instead for 3.3 V operation.

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

The device is characterized up to 50 pF CL with guaranteed 9.0 ns max propagation delay at V_CC = 5.0 V. Driving >50 pF increases delay nonlinearly and may cause output ringing; for heavier loads, add series termination or use a dedicated buffer stage.

Does this part support hot-swap or live-insertion?

Yes - its overvoltage-tolerant inputs (up to 5.5 V independent of V_CC) and ±20 mA input clamping current allow safe connection to powered backplanes. However, V_CC must be ramped before applying input signals to avoid undefined output states during power-up.

74AHCT14BQ-Q100,11 Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: 74AHCT

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:: 4.5V ~ 5.5V

Current - Quiescent (Max):: 2 µA

Current - Output High, Low:: 8mA, 8mA

Input Logic Level - Low:: 0.5V ~ 0.6V

Input Logic Level - High:: 1.9V ~ 2.1V

Max Propagation Delay @ V, Max CL:: 8ns @ 5V, 50pF

Operating Temperature:: -40°C ~ 125°C

Grade:: Automotive

Qualification:: AEC-Q100

Mounting Type:: Surface Mount

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

74AHCT14BQ-Q100,11 FAQ

1.How can I place an order for 74AHCT14BQ-Q100,11 through Aetrix?

Please submit a Request for Quotation (RFQ) for 74AHCT14BQ-Q100,11 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 74AHCT14BQ-Q100,11 reliable?

The price and inventory of 74AHCT14BQ-Q100,11 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74AHCT14BQ-Q100,11 is usually 5 days.

3.What payment methods are accepted for 74AHCT14BQ-Q100,11?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74AHCT14BQ-Q100,11 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 74AHCT14BQ-Q100,11?

74AHCT14BQ-Q100,11 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 74AHCT14BQ-Q100,11 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 74AHCT14BQ-Q100,11?

For technical support, including 74AHCT14BQ-Q100,11 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74AHCT14BQ-Q100,11 requirements.

6.How does Aetrix verify that 74AHCT14BQ-Q100,11 is sourced from the original manufacturer or authorized distributors?

All 74AHCT14BQ-Q100,11 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 74AHCT14BQ-Q100,11 meets industry standards.

7.What is the process for return or replacement of 74AHCT14BQ-Q100,11?

All 74AHCT14BQ-Q100,11 units undergo pre-shipment inspection (PSI). If there is an issue with 74AHCT14BQ-Q100,11, 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 74AHCT14BQ-Q100,11 part is unused and in its original packaging.

Return procedure for 74AHCT14BQ-Q100,11:

1.Submit a request within 90 days.

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

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