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Nexperia USA Inc. 74HCT14D-Q100,118
- Part No.:
- 74HCT14D-Q100,118
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Gates and Inverters
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
74HCT14D-Q100,118.pdf
- Description:
- IC INVERT SCHMITT 6CH 1-INP 14SO
- Quantity:
- Payment:
- Shipping:
Inventory:3,677
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Product details
Overview
74HCT14D-Q100 from Nexperia is an automotive-grade hex inverting Schmitt trigger IC with TTL-compatible input thresholds (VT+ = 1.2–1.9 V, VT− = 0.5–1.4 V at VCC = 4.5–5.5 V), 6-channel operation, SO14 package, and AEC-Q100 Grade 1 qualification (−40 °C to +125 °C). It converts slow or noisy analog-like signals into clean digital outputs for timing and waveform conditioning in engine control units and body electronics.
For engineers reviewing the 74HCT14D-Q100 datasheet, 74HCT14D-Q100 pinout, 74HCT14D-Q100 application, or 74HCT14D-Q100 equivalent, this page delivers verified electrical parameters, validated automotive operating conditions, confirmed SO14 pin mapping, and real-world use cases in relaxation oscillators and noise-immune signal conditioning circuits.
Technical Context
The device implements six independent Schmitt-trigger inverters with hysteresis (VH = 0.4–0.6 V at VCC = 4.5–5.5 V), enabling robust noise rejection on slow-rising inputs. Each channel features TTL-level input compatibility and clamp diodes allowing safe interfacing to voltages exceeding VCC when used with current-limiting resistors.
Its propagation delay ranges from 20 ns to 51 ns (VCC = 4.5 V, CL = 50 pF), transition time is 7–22 ns, and it operates across a 4.5–5.5 V supply range with static ICC ≤ 40 μA at +125 °C - optimized for low-power, high-reliability automotive signal conditioning.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | Hex inverting Schmitt trigger - provides six independent hysteresis-based digital inversion channels. |
| Supply Voltage Range | 4.5 V to 5.5 V - matches standard automotive 5 V rail with margin for ripple and drop. |
| Input Thresholds (VCC = 4.5 V) | VT+ = 1.2–1.9 V, VT− = 0.5–1.2 V - enables reliable switching from TTL-compatible sources. |
| Propagation Delay (CL = 50 pF) | 20–51 ns - supports stable timing generation up to ~10 MHz in oscillator and multivibrator applications. |
| Operating Temperature | −40 °C to +125 °C - qualified per AEC-Q100 Grade 1 for under-hood automotive use. |
| ESD Protection | HBM > 2000 V, CDM > 1000 V - ensures robustness during handling and PCB assembly in production environments. |
| Output Drive | ±4.0 mA (VOH/VOL) - sufficient to drive multiple CMOS/TTL inputs or small capacitive loads directly. |
Pinout & Package
74HCT14D-Q100 uses the SO14 (SOT108-1) plastic small outline package: 14-pin, 3.9 mm body width, 1.27 mm lead pitch, gull-wing leads. Pin 1 is index-marked; pin 7 = GND, pin 14 = VCC.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3, 5, 9, 11, 13 | Input (1A–6A) | Six independent Schmitt-trigger inputs - accept slow/noisy signals and convert to jitter-free logic levels. |
| 2, 4, 6, 8, 10, 12 | Output (1Y–6Y) | Inverted, buffered outputs - each drives one CMOS/TTL load or feeds feedback network in oscillator circuits. |
| 7 | GND | Ground reference for all logic and power domains - must be low-impedance for noise immunity. |
| 14 | VCC | Main supply (4.5–5.5 V) - powers all six channels; decoupling capacitor required near pin. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for −40 °C to +125 °C operation - meets automotive reliability requirements without derating. |
| TTL-compatible input thresholds | VT+ ≥ 1.2 V, VT− ≤ 1.2 V at VCC = 4.5 V - enables direct interface with legacy 5 V TTL outputs. |
| Input clamp diodes | Allows safe overvoltage input (VI > VCC) with external current-limiting resistor - simplifies level-shifting design. |
| Unlimited input rise/fall times | No minimum edge rate specified - accepts arbitrarily slow transitions (e.g., thermistor or potentiometer signals). |
| High noise immunity | Typical hysteresis 0.4–0.6 V - rejects noise spikes up to ±300 mV without false triggering. |
Applications
| Engine Control Unit (ECU) Signal Conditioning | Body Control Module (BCM) Switch Debouncing |
|---|---|
|
Use Scenario: Cleaning noisy crankshaft position sensor signals before feeding to microcontroller timer capture inputs. IC Role / Device Role / Timing Role: Schmitt-trigger inverter acting as analog-to-digital front-end - transforms slow, noisy sine/square waveforms into clean, jitter-free logic edges. Use Value: Eliminates false edge detection caused by EMI or contact bounce, ensuring accurate RPM and ignition timing calculation. |
Use Scenario: Debouncing mechanical door lock/unlock switch inputs in BCM systems. IC Role / Device Role / Timing Role: Six-channel inverter providing independent hysteresis filtering per switch line - no software polling or RC delays needed. Use Value: Reduces firmware complexity and eliminates spurious lock/unlock commands due to contact chatter during vehicle vibration. |
| Automotive Relaxation Oscillator | Infotainment System Clock Buffering |
|
Use Scenario: Generating variable-frequency clock signals for LED dimming or fan speed control using R-C feedback. IC Role / Device Role / Timing Role: One inverter stage configured as astable multivibrator - output frequency set by external R and C values. Use Value: Enables low-cost, temperature-stable timing (K-factor = 0.4–1.2) without dedicated oscillator ICs or crystals. |
Use Scenario: Distributing and cleaning a master clock signal to multiple audio codec and display controller inputs. IC Role / Device Role / Timing Role: Fan-out buffer with Schmitt inputs - cleans jitter from long PCB traces and isolates source from load capacitance. Use Value: Maintains signal integrity across mixed-signal domains, preventing bit errors in I²S or SPI data transmission. |
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 |
|---|---|---|---|
| 74HC14D-Q100 | CMOS input thresholds (VT+ ≈ 4.4 V at VCC = 4.5 V); higher supply range (2.0–6.0 V); lower drive (±4 mA). | Requires clean 5 V logic sources; unsuitable for direct TTL interface; better for mixed-voltage systems. | Select when interfacing with HC-family logic or wider supply rails; avoid if driving legacy TTL. |
| SN74LV14APWR | Lower VCC range (2.0–5.5 V); LV logic family; VIH min = 1.7 V at VCC = 3.3 V; not AEC-Q100 qualified. | Limited to industrial/commercial temp range (−40 °C to +105 °C); lacks automotive qualification and extended hysteresis. | Use only in non-automotive designs where cost or 3.3 V compatibility outweighs qualification needs. |
Compared with 74HC14D-Q100, the 74HCT14D-Q100 offers guaranteed TTL compatibility and tighter hysteresis for noisy environments, while SN74LV14APWR trades automotive qualification for broader voltage flexibility and lower static power - making the HCT variant optimal for safety-critical 5 V automotive signal conditioning.
Availability
74HCT14D-Q100 is available at Aetrix Electronics and suitable for engine control units, body control modules, automotive relaxation oscillators, and infotainment clock distribution requiring stable component supply across extended temperature ranges.
Supply support for 74HCT14D-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, reliable, and scalable solutions for automotive, industrial, and consumer markets.
The 74HCT14-Q100 belongs to Nexperia's automotive logic portfolio, designed specifically for robust signal conditioning in harsh environments - emphasizing AEC-Q100 compliance, wide temperature operation, and noise-immune Schmitt-trigger functionality.
FAQ
What is the maximum recommended supply voltage for 74HCT14D-Q100?
The absolute maximum supply voltage is +7.0 V, but the recommended operating range is strictly 4.5 V to 5.5 V per AEC-Q100 qualification and datasheet specifications. Operating above 5.5 V voids automotive qualification and risks exceeding input clamp current limits, potentially degrading long-term reliability in automotive applications.
Can 74HCT14D-Q100 drive a 50 pF load at 10 MHz?
Yes - with typical tpd = 20–34 ns (VCC = 4.5 V, CL = 50 pF), the device supports reliable operation up to ~10 MHz in oscillator or clock-buffering roles. Output drive strength (±4.0 mA) and low transition time (7–22 ns) ensure clean edges into 50 pF, provided proper PCB layout and local decoupling are used.
Is pin 14 (VCC) internally decoupled?
No - 74HCT14D-Q100 has no internal decoupling. A 100 nF ceramic capacitor must be placed between pin 14 (VCC) and pin 7 (GND), located within 5 mm of the package, to suppress supply noise and maintain stable Schmitt thresholds during fast switching events.
Does this part support mixed-voltage interfacing (e.g., 3.3 V MCU to 5 V peripheral)?
No - 74HCT14D-Q100 is a unidirectional 5 V logic device. Its inputs are TTL-compatible (VIH ≥ 2.0 V), but outputs swing rail-to-rail (0 V / 4.5–5.5 V) and are not 3.3 V tolerant. For mixed-voltage interfacing, external level-shifting circuitry or a dual-supply buffer is required.
74HCT14D-Q100,118 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74HCT
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- 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:
- 4mA, 4mA
- Input Logic Level - Low:
- 0.5V ~ 0.6V
- Input Logic Level - High:
- 1.9V ~ 2.1V
- Max Propagation Delay @ V, Max CL:
- 34ns @ 4.5V, 50pF
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SO
74HCT14D-Q100,118 FAQ
1.How can I place an order for 74HCT14D-Q100,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HCT14D-Q100,118 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 74HCT14D-Q100,118 reliable?
The price and inventory of 74HCT14D-Q100,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HCT14D-Q100,118 is usually 5 days.
3.What payment methods are accepted for 74HCT14D-Q100,118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HCT14D-Q100,118 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HCT14D-Q100,118?
74HCT14D-Q100,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HCT14D-Q100,118 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 74HCT14D-Q100,118?
For technical support, including 74HCT14D-Q100,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HCT14D-Q100,118 requirements.
6.How does Aetrix verify that 74HCT14D-Q100,118 is sourced from the original manufacturer or authorized distributors?
All 74HCT14D-Q100,118 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 74HCT14D-Q100,118 meets industry standards.
7.What is the process for return or replacement of 74HCT14D-Q100,118?
All 74HCT14D-Q100,118 units undergo pre-shipment inspection (PSI). If there is an issue with 74HCT14D-Q100,118, 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 74HCT14D-Q100,118 part is unused and in its original packaging.
Return procedure for 74HCT14D-Q100,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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