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Nexperia USA Inc. 74HC14BQ-Q100,115
- Part No.:
- 74HC14BQ-Q100,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Gates and Inverters
- Package:
- 14-VFQFN Exposed Pad
- Datasheet:
-
74HC14BQ-Q100,115.pdf
- Description:
- IC INVERTER 6CH 1-INP 14DHVQFN
- Quantity:
- Payment:
- Shipping:
Inventory:672
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Product details
Overview
74HC14BQ-Q100 from Nexperia is an automotive-qualified hex inverting Schmitt trigger IC with 14-terminal DHVQFN package, operating from 2.0 V to 6.0 V supply, featuring ±25 mA output drive, 12 ns typical propagation delay at 6.0 V, and AEC-Q100 Grade 1 qualification (−40 °C to +125 °C). It transforms slow-rising/falling signals into clean digital outputs for noise-immune signal conditioning in engine control and body electronics.
For engineers reviewing the 74HC14BQ-Q100 datasheet, 74HC14BQ-Q100 pinout, 74HC14BQ-Q100 application, or 74HC14BQ-Q100 equivalent, this device serves as a robust input signal conditioner where TTL-level interfacing, hysteresis-based noise rejection, and automotive-grade reliability are required - especially in wave shaping, oscillator circuits, and debounced switch interfaces.
Technical Context
The 74HC14BQ-Q100 implements six independent CMOS inverting Schmitt triggers, each with asymmetric hysteresis (e.g., VT+ = 2.1 V / VT− = 1.2 V at VCC = 6.0 V) enabling reliable threshold discrimination for noisy analog-like inputs. Its input clamp diodes allow safe interfacing to voltages exceeding VCC when used with current-limiting resistors.
It operates across two logic families: 74HC variant supports full 2.0–6.0 V rail compatibility with CMOS input thresholds, while the pin-compatible 74HCT14BQ-Q100 variant provides TTL-compatible input levels (VT+ ≈ 1.4 V at 4.5 V). Both share identical DHVQFN14 packaging and AEC-Q100 Grade 1 thermal rating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.0 V to 6.0 V - Enables direct interface with 3.3 V and 5 V microcontrollers and legacy automotive systems without level-shifting. |
| Operating Temperature | −40 °C to +125 °C - Qualified per AEC-Q100 Grade 1 for under-hood and powertrain applications. |
| Propagation Delay | 12 ns (typ) at VCC = 6.0 V, CL = 50 pF - Supports stable timing in relaxation oscillators and pulse edge sharpening up to ~30 MHz. |
| Hysteresis Voltage | 0.6 V to 1.6 V (VCC = 2.0–6.0 V) - Provides noise immunity of ≥300 mV on slow-rising signals, preventing false triggering. |
| Output Drive Strength | ±25 mA - Sufficient to directly drive LEDs, small relays, or fan-out to multiple 74-series inputs without buffering. |
| Input Clamp Diodes | Integrated - Permits safe connection to voltages > VCC (e.g., 12 V sensor lines) using external series resistors. |
| ESD Protection | HBM > 2000 V, CDM > 1000 V - Ensures robustness during PCB handling and in-circuit transient events. |
Pinout & Package
DHVQFN14 (SOT762-1) package: 2.5 mm × 3.0 mm × 0.85 mm body, side-wettable flanks for AOI-compatible solder joint inspection, thermally enhanced construction, no leads, 14 copper terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3, 5, 9, 11, 13 | Input (1A–6A) | Six independent Schmitt-trigger inputs; each accepts slow-rising/falling signals and applies hysteresis before inversion. |
| 2, 4, 6, 8, 10, 12 | Output (1Y–6Y) | Inverted, jitter-free digital outputs; capable of sourcing/sinking ±25 mA with rail-to-rail swing. |
| 7 | GND | Reference ground node; must be low-impedance for stable hysteresis and noise immunity. |
| 14 | VCC | Primary power supply; decoupling capacitor (100 nF) recommended within 3 mm of this terminal. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for −40 °C to +125 °C operation with full reliability testing - suitable for engine control units and transmission modules. |
| Side-wettable flanks (SWF) | Enables automated optical inspection (AOI) of bottom-solder joints in DHVQFN14 - improves manufacturing yield and field reliability. |
| Unlimited input rise/fall times | Eliminates need for external RC filtering; accepts arbitrarily slow transitions (e.g., mechanical switch bounce, thermistor outputs). |
| CMOS low-power dissipation | ICC ≤ 40 μA max at VCC = 6.0 V - enables use in always-on vehicle subsystems with strict quiescent current budgets. |
| TTL-level compatible variant (74HCT14BQ-Q100) | Fixed VT+ ≈ 1.4 V at 4.5 V - allows seamless integration with legacy 5 V TTL logic without level shifters. |
Applications
| Engine Control Signal Conditioning | Body Electronics Switch Debouncing |
|---|---|
Use Scenario: Cleaning crankshaft position sensor signals contaminated by EMI and voltage transients in ICE engine bays. IC Role / Device Role / Timing Role: Schmitt-trigger inverter acting as analog-to-digital signal shaper, converting noisy sine-wave or variable-reluctance outputs into clean square waves for MCU timer capture. Use Value: Eliminates false edge detection in ignition timing, improving combustion efficiency and reducing misfire counts. |
Use Scenario: Debouncing door lock/unlock switch inputs exposed to vibration and contact bounce in automotive door modules. IC Role / Device Role / Timing Role: Input conditioner providing hysteresis-based noise rejection before feeding signals to a LIN transceiver or local MCU GPIO. Use Value: Prevents spurious lock/unlock commands caused by mechanical switch chatter, enhancing user experience and system safety. |
| Relaxation Oscillator Generation | Waveform Shaping in ADAS Sensors |
Use Scenario: Building a low-cost, temperature-stable clock source for cabin ambient light sensing or HVAC fan speed control. IC Role / Device Role / Timing Role: One inverter stage configured as a feedback oscillator with external R-C network; remaining five inverters unused or repurposed. Use Value: Delivers predictable frequency (K-factor = 1.0 at 6 V) without requiring quartz crystal or dedicated oscillator IC - reduces BOM cost and footprint. |
Use Scenario: Converting slow-rising proximity sensor outputs (e.g., capacitive rain/light sensors) into sharp-edged digital pulses for time-of-flight measurement. IC Role / Device Role / Timing Role: Edge-sharpening buffer that restores signal integrity before ADC sampling or digital correlation processing. Use Value: Improves timing resolution and SNR in sensor fusion algorithms, enabling faster response to environmental changes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar hex inverting Schmitt trigger applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74HCT14BQ-Q100 | TTL-compatible input thresholds (VT+ ≈ 1.4 V), otherwise identical pinout, package, and specs. | Better suited for mixed 5 V TTL/CMOS systems; less ideal for 3.3 V-only designs due to marginal VIH margin. | Select when interfacing with legacy 5 V logic families; verify VIH/VIL margins against driver output specs. |
| SN74LV14AQPWRQ1 | TI's AEC-Q100 Grade 1 LV-family part; lower VCC range (1.65–5.5 V), 10 ns tpd at 3.3 V, higher ICC (100 μA typ). | Optimized for 3.3 V domains; lacks clamp diodes - requires external protection for overvoltage inputs. | Prefer for new 3.3 V automotive designs needing tighter propagation delay; avoid if >VCC input tolerance is required. |
Compared with 74HCT14BQ-Q100, the original 74HC14BQ-Q100 offers wider supply flexibility and inherent overvoltage input tolerance; versus SN74LV14AQPWRQ1, it trades slightly higher delay for broader voltage operation and integrated clamping - critical for heterogeneous voltage domains in modern ECUs.
Availability
74HC14BQ-Q100 is available at Aetrix Electronics and suitable for engine control units, body control modules, ADAS sensor interfaces, and infotainment power management requiring stable component supply across automotive production lifecycles.
Supply support for 74HC14BQ-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 high-volume, high-reliability logic, discrete, and MOSFET solutions, with deep expertise in automotive-grade component qualification and manufacturing.
The 74HC14BQ-Q100 belongs to Nexperia's automotive logic portfolio, designed specifically to meet stringent AEC-Q100 requirements for signal integrity, thermal resilience, and long-term reliability in harsh vehicular environments.
FAQ
What is the maximum input voltage allowed beyond VCC for 74HC14BQ-Q100?
The device includes integrated input clamp diodes rated for ±20 mA clamping current. When used with a series current-limiting resistor, inputs may safely accept voltages up to 12 V (or higher) - provided the instantaneous diode current remains within ±20 mA per pin, as specified in Table 4 of the datasheet.
Can 74HC14BQ-Q100 drive a 100 Ω transmission line directly?
No. With a typical output impedance of ~50 Ω and ±25 mA drive capability, the 74HC14BQ-Q100 is not designed for controlled-impedance line driving. Direct connection to a 100 Ω load would cause excessive voltage drop and signal distortion; a dedicated line driver or series termination is required.
Does the DHVQFN14 package require thermal pad connection to GND?
No. The exposed thermal pad (terminal 7) has no electrical function. Per datasheet Section 6.1, it may remain floating or be connected to GND - but if soldered, the land must be electrically isolated unless explicitly tied to ground for thermal enhancement in high-power-density layouts.
How does hysteresis vary with supply voltage in 74HC14BQ-Q100?
Hysteresis voltage (VH) scales with VCC: from 0.2 V at 2.0 V to 1.6 V at 6.0 V (Table 10). This ensures consistent noise margin percentage (~25–30 % of VCC) across the full operating range, maintaining robust performance in variable-battery automotive systems.
74HC14BQ-Q100,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74HC
- 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:
- 2V ~ 6V
- Current - Quiescent (Max):
- 2 µA
- Current - Output High, Low:
- 5.2mA, 5.2mA
- Input Logic Level - Low:
- 0.3V ~ 1.2V
- Input Logic Level - High:
- 1.5V ~ 4.2V
- Max Propagation Delay @ V, Max CL:
- 21ns @ 6V, 50pF
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-DHVQFN (2.5x3)
74HC14BQ-Q100,115 FAQ
1.How can I place an order for 74HC14BQ-Q100,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HC14BQ-Q100,115 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 74HC14BQ-Q100,115 reliable?
The price and inventory of 74HC14BQ-Q100,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HC14BQ-Q100,115 is usually 5 days.
3.What payment methods are accepted for 74HC14BQ-Q100,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HC14BQ-Q100,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HC14BQ-Q100,115?
74HC14BQ-Q100,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HC14BQ-Q100,115 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 74HC14BQ-Q100,115?
For technical support, including 74HC14BQ-Q100,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HC14BQ-Q100,115 requirements.
6.How does Aetrix verify that 74HC14BQ-Q100,115 is sourced from the original manufacturer or authorized distributors?
All 74HC14BQ-Q100,115 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 74HC14BQ-Q100,115 meets industry standards.
7.What is the process for return or replacement of 74HC14BQ-Q100,115?
All 74HC14BQ-Q100,115 units undergo pre-shipment inspection (PSI). If there is an issue with 74HC14BQ-Q100,115, 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 74HC14BQ-Q100,115 part is unused and in its original packaging.
Return procedure for 74HC14BQ-Q100,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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