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Nexperia USA Inc. 74HCT27PW-Q100J
- Part No.:
- 74HCT27PW-Q100J
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Gates and Inverters
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
74HCT27PW-Q100J.pdf
- Description:
- IC GATE NOR 3CH 3-INP 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,919
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Product details
Overview
74HCT27PW-Q100 from Nexperia is an automotive-grade triple 3-input NOR gate in TSSOP14 package, operating from 4.5 V to 5.5 V supply, with TTL-compatible inputs, propagation delay of 12–32 ns (−40 °C to +125 °C), and qualified to AEC-Q100 Grade 1 for use in engine control units and body electronics.
For engineers reviewing the 74HCT27PW-Q100 datasheet, 74HCT27PW-Q100 pinout, 74HCT27PW-Q100 application, or 74HCT27PW-Q100 equivalent, key selection criteria include input logic level compatibility (TTL), guaranteed operation up to +125 °C, low dynamic power dissipation (CPD = 30 pF), and side-wettable flank packaging for AOI-capable solder joint inspection.
Technical Context
This device implements three independent 3-input NOR logic functions using 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 interfacing with legacy 5 V TTL systems without level shifting. Each gate features integrated input clamp diodes for overvoltage tolerance when used with current-limiting resistors.
It operates across −40 °C to +125 °C ambient temperature, supports wide noise margins (typical VIH − VOL = 1.74 V, VOH − VIL = 2.92 V at VCC = 5 V), and meets JESD8C (2.7–3.6 V) and JESD7A (2.0–6.0 V) standards - though rated only for 4.5–5.5 V in automotive configuration per recommended conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | Triple 3-input NOR: Y = NOT(A OR B OR C), fully independent gates |
| Supply Voltage Range | 4.5 V to 5.5 V - ensures stable operation in automotive 5 V rail with ±10 % tolerance |
| Propagation Delay | 12 ns (typ) to 32 ns (max) at VCC = 4.5 V, −40 °C to +125 °C - defines maximum combinational timing budget |
| Input Compatibility | TTL-level: VIH ≥ 2.0 V, VIL ≤ 0.8 V - enables plug-in replacement of 74LS27 in legacy 5 V systems |
| Output Drive | ±4.0 mA at VCC = 4.5 V - sufficient to drive 10 LSTTL loads or 20 CMOS loads |
| Power Dissipation Cap. | CPD = 30 pF - used to calculate dynamic power: PD = 30 × VCC² × fin × N + Σ(CL × VCC² × fout) |
| ESD Robustness | HBM > 2000 V, CDM > 1000 V - exceeds automotive board-level ESD requirements per ISO 10605 |
Pinout & Package
TSSOP14 package (SOT402-1): plastic thin shrink small outline, 14 leads, 4.4 mm body width, 0.65 mm lead pitch, side-wettable flanks for automated optical inspection of solder joints.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1A | First NOR gate input A - accepts TTL-level HIGH/LOW signals |
| 2 | 1B | First NOR gate input B - electrically identical to 1A, no internal coupling |
| 3 | 2A | Second NOR gate input A - isolated from Gate 1; shares no internal nodes |
| 4 | 2B | Second NOR gate input B - supports independent 3-input NOR function with 2A, 2C, 2Y |
| 5 | 2C | Second NOR gate input C - all three inputs must be LOW for HIGH output |
| 6 | 2Y | Second NOR gate output - drives capacitive loads up to 15 pF within spec |
| 7 | GND | Ground reference (0 V) - mandatory connection for logic reference and thermal path |
| 8 | 3Y | Third NOR gate output - symmetrical drive strength and timing vs. 1Y/2Y |
| 9 | 3A | Third NOR gate input A - pin 9 is input, not output; matches SO14/DHVQFN pin mapping |
| 10 | 3B | Third NOR gate input B - consistent with IEC logic symbol orientation |
| 11 | 3C | Third NOR gate input C - completes third independent 3-input NOR function |
| 12 | 1Y | First NOR gate output - directly driven by 1A/1B/1C; no internal feedback |
| 13 | 1C | First NOR gate input C - all three inputs tied to same voltage threshold specs |
| 14 | VCC | Positive supply (4.5–5.5 V) - decoupling capacitor (100 nF) required within 10 mm |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for −40 °C to +125 °C operation in safety-critical automotive ECUs without derating |
| TTL-compatible input thresholds | VIH(min) = 2.0 V, VIL(max) = 0.8 V at VCC = 4.5–5.5 V - eliminates need for external level shifters |
| Input clamp diodes | Enable safe interface to voltages > VCC using series current-limiting resistors (e.g., sensor pull-ups) |
| Side-wettable flanks (SWF) | TSSOP14 package geometry allows AOI detection of solder joint voids and bridging defects |
| High noise immunity | Typical noise margin > 1.7 V (VNH/VNL) at VCC = 5 V - resists EMI in under-hood environments |
| Latch-up immunity | Exceeds 100 mA per JESD78 Class II Level B - prevents destructive latch-up during transients |
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 driver logic only when all conditions are met. IC Role / Device Role / Timing Role: Combinational logic gate performing safety-critical AND-NOT logic (via NOR inversion) with sub-32 ns propagation ensuring real-time response. Use Value: Enables deterministic timing window for fuel injection pulse generation without microcontroller intervention, reducing MCU load and latency. |
Use Scenario: Validating door lock actuator command validity by NOR-ing door ajar, child lock, and ignition status signals before enabling motor drive. IC Role / Device Role / Timing Role: Hardware-level interlock gate preventing unintended actuation; operates independently of firmware state. Use Value: Provides fail-safe hardware arbitration that remains functional even during MCU reset or software hang. |
| Advanced Driver Assistance Systems (ADAS) Power Sequencing | Automotive Infotainment Display Backlight Control |
|
Use Scenario: Generating enable signal for radar SoC power supply only when 12 V main, 3.3 V LDO, and thermal OK signals are all asserted. IC Role / Device Role / Timing Role: Three-input logic arbiter ensuring strict power-up sequence compliance before releasing reset. Use Value: Prevents IC damage from out-of-spec power sequencing, eliminating need for custom ASIC or FPGA logic. |
Use Scenario: Inverting brightness PWM signal while gating it with display ON/OFF and dimming mode select lines in LCD backlight driver circuit. IC Role / Device Role / Timing Role: Signal conditioning gate synchronizing PWM edge timing with system enable states. Use Value: Reduces component count versus discrete transistor + resistor solution while maintaining precise edge alignment. |
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 |
|---|---|---|---|
| 74HCT27D-Q100 | SO14 package (SOT108-1), 3.9 mm body width, no side-wettable flanks | Preferred for through-hole prototyping or legacy PCBs with SO footprint; lacks AOI support | Select when manual rework or wave soldering is required; avoid for high-volume SMT with AOI validation. |
| 74HCT27BQ-Q100 | DHVQFN14 package (SOT762-1), 2.5 × 3 mm, thermal-enhanced, no leads | Better thermal resistance (9.6 mW/K derating above 98 °C) and smaller footprint for space-constrained modules | Choose for ADAS camera modules or compact telematics units where size and thermal performance outweigh AOI needs. |
Compared with 74HCT27PW-Q100, the D-Q100 variant trades AOI capability for mechanical robustness in manual assembly, while the BQ-Q100 sacrifices optical inspectability for 40 % smaller area and improved thermal dissipation - making PW the balanced choice for high-reliability SMT automotive production.
Availability
74HCT27PW-Q100 is available at Aetrix Electronics and suitable for engine control units, body control modules, and ADAS power sequencing requiring stable component supply across automotive production lifecycles.
Supply support for 74HCT27PW-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, analog, and MOSFET solutions for automotive, industrial, and mobile markets.
The 74HCT-Q100 series delivers AEC-Q100 qualified standard logic devices optimized for automotive subsystems requiring extended temperature operation, robust ESD immunity, and long-term supply stability.
FAQ
Can 74HCT27PW-Q100 operate at 3.3 V supply?
No. Per the datasheet's Recommended Operating Conditions, 74HCT27PW-Q100 is specified only for 4.5 V to 5.5 V supply. At 3.3 V, input thresholds (VIH ≥ 2.0 V) become non-compliant with typical 3.3 V logic HIGH levels (~3.0 V), risking unreliable switching. Use 74HC27PW-Q100 instead for 2.0–6.0 V operation.
What is the maximum capacitive load this device can drive reliably?
The device is characterized with CL = 15 pF and 50 pF loads in dynamic testing (Table 9). Driving >50 pF increases propagation delay nonlinearly and may cause output ringing; for loads exceeding 50 pF, add a series resistor (22–47 Ω) near the output to dampen reflections and maintain signal integrity.
Does the GND pad on the TSSOP14 package require soldering?
No. Pin 7 is the sole electrical GND connection. The exposed thermal pad (if present in variant) is not electrically connected and has no solder requirement per datasheet Note [1] - if soldered, it must remain floating or tied to GND with no impedance; improper grounding causes thermal stress or solder voids.
How does the input clamp diode affect interfacing with 12 V sensors?
The internal clamp diodes allow safe connection of 12 V open-collector sensor outputs via a series current-limiting resistor (e.g., 10 kΩ), limiting input current to <20 mA per Absolute Maximum Ratings. This avoids external diodes and simplifies interface design for wake-up or diagnostic lines in automotive networks.
74HCT27PW-Q100J Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74HCT
- Package/Case:
- 14-TSSOP (0.173", 4.40mm 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-TSSOP
74HCT27PW-Q100J FAQ
1.How can I place an order for 74HCT27PW-Q100J through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HCT27PW-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 74HCT27PW-Q100J reliable?
The price and inventory of 74HCT27PW-Q100J are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HCT27PW-Q100J is usually 5 days.
3.What payment methods are accepted for 74HCT27PW-Q100J?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HCT27PW-Q100J transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HCT27PW-Q100J?
74HCT27PW-Q100J orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HCT27PW-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 74HCT27PW-Q100J?
For technical support, including 74HCT27PW-Q100J datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HCT27PW-Q100J requirements.
6.How does Aetrix verify that 74HCT27PW-Q100J is sourced from the original manufacturer or authorized distributors?
All 74HCT27PW-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 74HCT27PW-Q100J meets industry standards.
7.What is the process for return or replacement of 74HCT27PW-Q100J?
All 74HCT27PW-Q100J units undergo pre-shipment inspection (PSI). If there is an issue with 74HCT27PW-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 74HCT27PW-Q100J part is unused and in its original packaging.
Return procedure for 74HCT27PW-Q100J:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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