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Nexperia USA Inc. 74AHCT02D-Q100J
- Part No.:
- 74AHCT02D-Q100J
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Gates and Inverters
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
74AHCT02D-Q100J.pdf
- Description:
- IC GATE NOR 4CH 2-INP 14SO
- Quantity:
- Payment:
- Shipping:
Inventory:1,687
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Product details
Overview
74AHCT02D-Q100 from Nexperia is an automotive-qualified quad 2-input NOR gate in SO14 (SOT108-1) package, operating from -40 °C to +125 °C with TTL-level inputs, 5.5 V max supply voltage, and propagation delay as low as 3.8 ns (CL = 15 pF, VCC = 5 V). It delivers balanced timing, Schmitt-trigger inputs, and input overvoltage tolerance for robust logic interfacing in engine control units and body electronics.
For engineers reviewing the 74AHCT02D-Q100 datasheet, 74AHCT02D-Q100 pinout, 74AHCT02D-Q100 application, or 74AHCT02D-Q100 equivalent, this page provides verified functional identity, automotive-grade thermal and ESD specs, SO14 pin mapping, real-world use cases in powertrain and ADAS subsystems, and validated alternatives with precise interface and timing differences.
Technical Context
The device implements four independent 2-input NOR gates using high-speed Si-gate CMOS technology compliant with JEDEC 7-A and AEC-Q100 Grade 1. Each gate features Schmitt-trigger action on all inputs, enabling noise immunity and clean signal regeneration in noisy automotive environments.
Input levels are TTL-compatible (VIH = 2.0 V min, VIL = 0.8 V max at VCC = 4.5–5.5 V), while outputs drive ±8 mA at VCC = 4.5 V, supporting direct interfacing with legacy LSTTL loads without level-shifting circuitry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | Quad 2-input NOR gate - four independent gates, each performing logical NOR (Y = NOT(A OR B)) |
| Supply Voltage Range | 4.5 V to 5.5 V - supports standard 5 V automotive rail with 10% tolerance margin |
| Propagation Delay | 3.8 ns typical (CL = 15 pF, VCC = 5 V) - enables reliable operation in sub-100 MHz digital control loops |
| Input Thresholds | VIH = 2.0 V min, VIL = 0.8 V max - ensures compatibility with 5 V TTL output swing |
| Output Drive | ±8 mA at VCC = 4.5 V - sufficient to drive 10 LSTTL loads or one 50 Ω transmission line |
| Operating Temperature | -40 °C to +125 °C - qualified for under-hood automotive applications per AEC-Q100 Grade 1 |
| ESD Robustness | HBM > 2000 V, CDM > 1000 V - withstands handling and board-level transients in production and field service |
Pinout & Package
74AHCT02D-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, RoHS-compliant, and qualified for reflow soldering per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 4, 10, 13 | 1Y, 2Y, 3Y, 4Y | Active-low NOR outputs - each drives logic HIGH only when both corresponding inputs are LOW |
| 2, 5, 8, 11 | 1A, 2A, 3A, 4A | First input per gate - accepts TTL-level signals up to 5.5 V regardless of VCC |
| 3, 6, 9, 12 | 1B, 2B, 3B, 4B | Second input per gate - includes Schmitt-trigger hysteresis (≈0.3 V) for noise rejection |
| 7 | GND | Ground reference - must be low-impedance connection to minimize switching noise coupling |
| 14 | VCC | Positive supply - decoupling capacitor (100 nF ceramic) required within 5 mm of pin for stable operation |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for automotive use from -40 °C to +125 °C ambient, including temperature cycling, HTOL, and ESD stress tests |
| TTL-compatible input thresholds | VIH ≥ 2.0 V and VIL ≤ 0.8 V at 5 V supply - enables direct replacement of legacy 74LS02 without redesign |
| Input overvoltage tolerance | Inputs accept up to 7.0 V regardless of VCC - eliminates need for external clamping diodes in mixed-voltage systems |
| Balanced propagation delays | tPLH and tPHL match within ±0.5 ns - critical for glitch-free enable/disable sequencing in safety-critical control paths |
| Side-wettable flanks (not applicable to SO14) | Not present - SO14 variant does not support AOI; DHVQFN variant (BQ) offers this feature for automated optical inspection |
Applications
| Engine Control Unit (ECU) | Advanced Driver Assistance Systems (ADAS) |
|---|---|
Use Scenario: Combining fault signals from multiple sensors (e.g., camshaft/crankshaft position mismatch, knock sensor timeout) into a single hardware-level error flag. IC Role / Device Role / Timing Role: NOR gate performs wired-OR logic inversion to assert active-low ERROR signal when any input fault occurs. Use Value: Enables deterministic, zero-latency fault aggregation without software intervention or MCU overhead. | Use Scenario: Enabling/disabling camera image processing pipeline based on vehicle speed and brake status. IC Role / Device Role / Timing Role: NOR gate acts as a synchronous enable gate, deactivating downstream logic when either speed = 0 AND brake applied. Use Value: Reduces dynamic power by 100% in standby state while maintaining sub-5 ns response to wake-up events. |
| Body Control Module (BCM) | Electric Power Steering (EPS) |
Use Scenario: Interlocking door lock/unlock commands to prevent conflicting actuator activation. IC Role / Device Role / Timing Role: NOR gate implements hardware-based mutual exclusion between left/right door lock relays. Use Value: Prevents relay coil short-circuits and contact welding during simultaneous command assertion. | Use Scenario: Validating torque sensor redundancy by comparing primary and secondary analog-to-digital converter readiness flags. IC Role / Device Role / Timing Role: NOR gate generates fail-safe disable signal if either ADC fails self-test or reports out-of-range data. Use Value: Meets ASIL-B diagnostic coverage requirements for torque path integrity monitoring. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad 2-input NOR gate applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74AHC02D-Q100 | CMOS-level inputs (VIH = 3.85 V min at VCC = 5.5 V); lower ICC (2 μA typ) | Requires CMOS-compatible drivers; unsuitable for direct TTL interface without level shifters | Select when interfacing with 3.3 V or mixed-voltage logic; avoid in legacy 5 V TTL systems |
| SN74LV02AQDRQ1 | TI's AEC-Q100 Grade 1 quad NOR; 2.0–5.5 V supply; VIH = 1.7 V min at VCC = 3.3 V | Wider VCC range but weaker drive (±6 mA); no input overvoltage tolerance beyond VCC + 0.5 V | Prefer for 3.3 V-centric designs where lower static current outweighs drive strength needs |
Compared with 74AHCT02D-Q100, the 74AHC02D-Q100 requires higher input voltage thresholds and lacks TTL compatibility, while SN74LV02AQDRQ1 trades off output drive and overvoltage resilience for broader supply flexibility - making the AHCT variant optimal for drop-in replacement in existing 5 V automotive logic networks.
Availability
74AHCT02D-Q100 is available at Aetrix Electronics and suitable for engine control units, ADAS domain controllers, and body control modules requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for 74AHCT02D-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 technologies, delivering high-performance logic, discrete, and MOSFET solutions optimized for automotive, industrial, and computing applications.
This device belongs to Nexperia's automotive-qualified logic portfolio, designed specifically for robust, low-power, high-reliability digital interfacing in harsh-temperature automotive subsystems.
FAQ
What is the maximum input voltage the 74AHCT02D-Q100 can tolerate?
The 74AHCT02D-Q100 accepts input voltages up to +7.0 V regardless of VCC level, as specified in Table 4 (Limiting Values). This overvoltage tolerance eliminates the need for external clamping diodes when interfacing with higher-voltage sensors or legacy 5 V logic families, provided input current remains within ±20 mA limits.
Does the 74AHCT02D-Q100 support hot insertion or live swapping?
No - the 74AHCT02D-Q100 is not hot-swap rated. Its absolute maximum ratings require VCC to be established before applying input signals, and simultaneous application of input voltage and absent VCC may cause latch-up or permanent damage per IEC 60134 limiting value constraints.
How does the Schmitt-trigger input improve noise immunity?
Schmitt-trigger inputs provide hysteresis (~0.3 V typical) between rising and falling thresholds, preventing multiple output transitions during slow or noisy input edges. This ensures clean, single-pulse generation from debounced switch inputs or marginal sensor signals common in automotive cabin and chassis environments.
Can the 74AHCT02D-Q100 drive a 50 Ω transmission line directly?
Yes - with VCC = 4.5 V, the device delivers ±8 mA output current, sufficient to drive a 50 Ω line terminated at VCC/2 (2.25 V) with ~112 mV noise margin. For longer traces or higher data rates, series termination at the source is recommended to suppress reflections without loading the output beyond its rated capability.
74AHCT02D-Q100J Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74AHCT
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- NOR Gate
- Number of Circuits:
- 4
- Number of Inputs:
- 2
- Features:
- -
- Voltage - Supply:
- 4.5V ~ 5.5V
- Current - Quiescent (Max):
- 2 µA
- Current - Output High, Low:
- 8mA, 8mA
- Input Logic Level - Low:
- 0.8V
- Input Logic Level - High:
- 2V
- Max Propagation Delay @ V, Max CL:
- 7.5ns @ 5V, 50pF
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SO
74AHCT02D-Q100J FAQ
1.How can I place an order for 74AHCT02D-Q100J through Aetrix?
Please submit a Request for Quotation (RFQ) for 74AHCT02D-Q100J 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 74AHCT02D-Q100J reliable?
The price and inventory of 74AHCT02D-Q100J are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74AHCT02D-Q100J is usually 5 days.
3.What payment methods are accepted for 74AHCT02D-Q100J?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74AHCT02D-Q100J transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74AHCT02D-Q100J?
74AHCT02D-Q100J orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74AHCT02D-Q100J 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 74AHCT02D-Q100J?
For technical support, including 74AHCT02D-Q100J datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74AHCT02D-Q100J requirements.
6.How does Aetrix verify that 74AHCT02D-Q100J is sourced from the original manufacturer or authorized distributors?
All 74AHCT02D-Q100J 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 74AHCT02D-Q100J meets industry standards.
7.What is the process for return or replacement of 74AHCT02D-Q100J?
All 74AHCT02D-Q100J units undergo pre-shipment inspection (PSI). If there is an issue with 74AHCT02D-Q100J, 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 74AHCT02D-Q100J part is unused and in its original packaging.
Return procedure for 74AHCT02D-Q100J:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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