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Nexperia USA Inc. 74HCT27D-Q100J
- Part No.:
- 74HCT27D-Q100J
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Gates and Inverters
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
74HCT27D-Q100J.pdf
- Description:
- IC GATE NOR 3CH 3-INP 14SO
- Quantity:
- Payment:
- Shipping:
Inventory:3,994
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Product details
Overview
74HCT27D-Q100 from Nexperia is an automotive-qualified triple 3-input NOR gate in SO14 (SOT108-1) package, operating from 4.5 V to 5.5 V with TTL-compatible inputs, 12 ns typical propagation delay at VCC = 4.5 V, and guaranteed operation from −40 °C to +125 °C. It integrates input clamp diodes for overvoltage-tolerant interfacing and meets AEC-Q100 Grade 1 requirements for engine control units and body electronics.
For engineers reviewing the 74HCT27D-Q100 datasheet, 74HCT27D-Q100 pinout, 74HCT27D-Q100 application, or 74HCT27D-Q100 equivalent, key selection criteria include TTL-level input compatibility, −40 °C to +125 °C automotive temperature range, SO14 package mechanical footprint, and NOR logic function with three independent gates per device.
Technical Context
This device implements three independent 3-input NOR gates using silicon-gate CMOS technology with TTL-level input thresholds (VIH = 2.0 V min, VIL = 0.8 V max at VCC = 4.5–5.5 V), enabling direct interface with legacy 5 V TTL logic families without level shifting. Each gate exhibits symmetrical HIGH/LOW output drive capability (IO = ±4.0 mA).
Input clamp diodes allow safe connection to signals exceeding VCC when used with current-limiting resistors; latch-up immunity exceeds 100 mA per JESD78 Class II Level B. The SO14 package supports standard reflow profiles and provides mechanical robustness for under-hood automotive environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | Triple 3-input NOR: Y = NOT(A OR B OR C), three independent gates |
| Supply Voltage Range | 4.5 V to 5.5 V - matches standard 5 V automotive rail with 10% tolerance margin |
| Propagation Delay | 12 ns typ (VCC = 4.5 V, CL = 15 pF) - enables reliable timing in sub-50 MHz combinatorial paths |
| Input Thresholds | VIH = 2.0 V min, VIL = 0.8 V max - ensures noise-immune TTL-level recognition |
| Output Drive | ±4.0 mA at VCC = 4.5 V - sufficient fan-out for driving 10 LS-TTL loads or multiple CMOS inputs |
| Operating Temperature | −40 °C to +125 °C - qualified for powertrain and chassis control modules |
| AEC-Q100 Grade | Grade 1 - validated for automotive applications per Automotive Electronics Council standard |
Pinout & Package
74HCT27D-Q100 uses the SO14 plastic small outline package (SOT108-1), 14-lead, 3.9 mm body width, with standard 1.27 mm lead pitch and gull-wing leads suitable for automated assembly and AOI inspection.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3, 9 | 1A, 2A, 3A | First input of each NOR gate - accepts TTL-level HIGH/LOW signals |
| 2, 4, 10 | 1B, 2B, 3B | Second input of each NOR gate - electrically identical to A inputs |
| 13, 5, 11 | 1C, 2C, 3C | Third input of each NOR gate - completes 3-input logic function per gate |
| 12, 6, 8 | 1Y, 2Y, 3Y | Active-LOW output of each NOR gate - sinks or sources up to 4 mA |
| 7 | GND | Ground reference (0 V) - mandatory low-impedance return path for all logic and supply currents |
| 14 | VCC | Positive supply input - must be decoupled locally with 100 nF ceramic capacitor |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for automotive use across −40 °C to +125 °C ambient, including thermal cycling and humidity testing |
| TTL-compatible input levels | VIH ≥ 2.0 V and VIL ≤ 0.8 V at VCC = 4.5–5.5 V - eliminates need for external level translators |
| Input clamp diodes | Enable safe interface to voltages > VCC using series current-limiting resistors - protects against overvoltage transients |
| High noise immunity | Typical noise margin > 0.9 V at VCC = 5 V - suppresses EMI-induced glitches in noisy vehicle environments |
| Low static power consumption | ICC ≤ 2.0 μA max at VCC = 5.5 V - reduces quiescent current in always-on vehicle modules |
Applications
| Engine Control Unit (ECU) | Body Control Module (BCM) |
|---|---|
Use Scenario: Combining crankshaft position, camshaft position, and knock sensor enable signals to activate fuel injector drivers only when all conditions are met. IC Role / Device Role / Timing Role: Combinatorial logic gate implementing safety-critical AND-NOR logic for injection enable arbitration. Use Value: Ensures deterministic, zero-latency logic evaluation without software overhead or microcontroller intervention. |
Use Scenario: Generating window lift/drop inhibit signal by NOR-ing door ajar, key-in-ignition, and brake pedal status. IC Role / Device Role / Timing Role: Hardware-level interlock logic preventing unintended window motion during vehicle entry/exit. Use Value: Meets ASIL-B functional safety requirements for fail-safe behavior independent of MCU firmware state. |
| Advanced Driver Assistance Systems (ADAS) Power Management | Automotive Lighting Control |
Use Scenario: Validating simultaneous presence of radar, camera, and GPS power-good signals before enabling ADAS domain controller. IC Role / Device Role / Timing Role: Power sequencing arbiter ensuring all subsystems are stable prior to domain controller boot. Use Value: Prevents brown-out induced lockup by enforcing hardware-enforced power-up coordination. |
Use Scenario: Implementing headlight high-beam cut-off logic that disables high beam if fog lamp or DRL is active. IC Role / Device Role / Timing Role: Real-time lighting mode arbitration gate with sub-20 ns response to input changes. Use Value: Guarantees immediate beam adjustment compliant with UNECE R112 photometric regulations. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar triple 3-input NOR gate applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74HCT27PW-Q100 | TSSOP14 (SOT402-1) package: 4.4 mm body width, 0.65 mm pitch, thinner profile | Better thermal resistance (7.3 mW/K derating above 81 °C) but lower moisture sensitivity level (MSL3 vs MSL1 for SO14) | Select for space-constrained PCBs where thermal performance outweighs handling complexity |
| SN74HCT27DR | Non-automotive grade; JEDEC-standard SO14; no AEC-Q100 qualification; wider VCC range (4.5–5.5 V same) | Not qualified for automotive use; limited to industrial or consumer applications with < +105 °C ambient | Select only for non-automotive designs requiring identical logic function and pinout at lower cost |
Compared with 74HCT27PW-Q100, the D-package offers superior manufacturability and moisture resilience; compared with SN74HCT27DR, the Q100 version provides verified lifetime reliability and failure rate data required for ISO 26262-compliant systems.
Availability
74HCT27D-Q100 is available at Aetrix Electronics and suitable for engine control units, body control modules, and ADAS power management systems requiring stable component supply across extended temperature ranges and automotive lifecycle commitments.
Supply support for 74HCT27D-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 leading semiconductor manufacturer specializing in high-performance logic, analog, and discrete components, with global R&D and manufacturing facilities focused on automotive-grade reliability.
The 74HCT-Q100 series delivers AEC-Q100 qualified logic devices optimized for automotive subsystems requiring deterministic timing, high noise immunity, and extended temperature operation.
FAQ
Can 74HCT27D-Q100 operate at 3.3 V supply?
No. The 74HCT27D-Q100 is specified only for 4.5 V to 5.5 V operation per its recommended conditions table. At 3.3 V, input thresholds fall outside TTL compatibility range and output drive degrades below specification; use 74HC27D-Q100 instead for 2.0–6.0 V operation with CMOS inputs.
What is the maximum capacitive load this device can drive reliably?
The device is characterized up to 50 pF load capacitance in dynamic tests (Table 9). For reliable operation with 15 pF load, propagation delay remains ≤21 ns; beyond 50 pF, transition times increase significantly and may violate setup/hold margins in synchronous systems.
Does the SO14 package include exposed thermal pad?
No. The SOT108-1 (SO14) package used for 74HCT27D-Q100 has no thermal pad. Thermal dissipation relies on copper pour on the PCB connected to pins 7 (GND) and 14 (VCC); maximum power dissipation is 500 mW with linear derating above 100 °C.
How does input clamping protect against overvoltage?
Integrated input clamp diodes conduct when voltage exceeds VCC + 0.5 V or falls below GND − 0.5 V. When paired with a series current-limiting resistor (e.g., 1 kΩ), they limit input current to < ±20 mA, preventing damage while allowing interface to 12 V sensor signals in automotive domains.
74HCT27D-Q100J 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:
- NOR Gate
- Number of Circuits:
- 3
- Number of Inputs:
- 3
- Features:
- -
- Voltage - Supply:
- 4.5V ~ 5.5V
- Current - Quiescent (Max):
- 2 µA
- Current - Output High, Low:
- 4mA, 4mA
- Input Logic Level - Low:
- 0.8V
- Input Logic Level - High:
- 2V
- Max Propagation Delay @ V, Max CL:
- 21ns @ 4.5V, 50pF
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SO
74HCT27D-Q100J FAQ
1.How can I place an order for 74HCT27D-Q100J through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HCT27D-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 74HCT27D-Q100J reliable?
The price and inventory of 74HCT27D-Q100J are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HCT27D-Q100J is usually 5 days.
3.What payment methods are accepted for 74HCT27D-Q100J?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HCT27D-Q100J transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HCT27D-Q100J?
74HCT27D-Q100J orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HCT27D-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 74HCT27D-Q100J?
For technical support, including 74HCT27D-Q100J datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HCT27D-Q100J requirements.
6.How does Aetrix verify that 74HCT27D-Q100J is sourced from the original manufacturer or authorized distributors?
All 74HCT27D-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 74HCT27D-Q100J meets industry standards.
7.What is the process for return or replacement of 74HCT27D-Q100J?
All 74HCT27D-Q100J units undergo pre-shipment inspection (PSI). If there is an issue with 74HCT27D-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 74HCT27D-Q100J part is unused and in its original packaging.
Return procedure for 74HCT27D-Q100J:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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