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Diodes Incorporated 74AHCT1G02QW5-7
- Part No.:
- 74AHCT1G02QW5-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Gates and Inverters
- Package:
- SC-74A, SOT-753
- Datasheet:
-
74AHCT1G02QW5-7.pdf
- Description:
- IC GATE NOR 1CH 2-INP SOT25
- Quantity:
- Payment:
- Shipping:
Inventory:2,932
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Product details
Overview
74AHCT1G02QW5-7 from Diodes Incorporated is an automotive-grade single 2-input positive NOR gate in SOT25 package, operating at 4.5V–5.5V supply, delivering ±8mA output drive at 5V, with propagation delay of 3.5ns (typ) and AEC-Q100 Grade 1 qualification (-40°C to +125°C). It performs Boolean Y = A + B logic in push-pull configuration for automotive control signal conditioning.
For engineers reviewing the 74AHCT1G02QW5-7 datasheet, 74AHCT1G02QW5-7 pinout, 74AHCT1G02QW5-7 application, or 74AHCT1G02QW5-7 equivalent, key selection criteria include its guaranteed operation across full automotive temperature range, Schmitt-trigger input tolerance for slow-rising signals, balanced high/low drive strength, latch-up immunity (>100mA), and ESD robustness (2kV HBM).
Technical Context
This device implements a single positive NOR function using advanced CMOS technology optimized for 5V automotive systems. Its inputs feature Schmitt-trigger action-enabling reliable switching with slow or noisy edges-and are overvoltage tolerant up to 6.5V independent of VCC.
The output stage provides symmetrical sourcing/sinking capability (±8mA at 5V), matched propagation delays (tPLH ≈ tPHL), and low dynamic power consumption (CPD = 10pF). It meets AEC-Q100 stress test requirements including HBM (2kV), CDM (1kV), and latch-up (>100mA).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | Single 2-input positive NOR (Y = A + B); enables compact discrete logic implementation without external inverters. |
| Supply Voltage | 4.5V to 5.5V; compatible with standard 5V automotive rails and tolerant of battery transients. |
| Output Drive | ±8mA at VCC = 5V; sufficient to directly drive multiple 74-series inputs or small LEDs without buffering. |
| Propagation Delay | 3.5ns typical (CL = 15pF, VCC = 5V); supports >100MHz toggle rates in clean signal paths. |
| Operating Temp | -40°C to +125°C ambient (Grade 1); qualified per AEC-Q100 for under-hood and powertrain control modules. |
| ESD Protection | 2000V HBM, 1000V CDM; exceeds automotive ESD immunity requirements for PCB-level handling and system integration. |
| Input Thresholds | VIL ≤ 0.8V, VIH ≥ 2.0V at VCC = 5V; ensures noise margin >1.2V against ground bounce or supply ripple. |
Pinout & Package
SOT25 (3.0mm × 2.8mm × 1.2mm, 0.95mm lead pitch) - surface-mount, 5-pin package with exposed pad not present; moisture sensitivity level 1 (J-STD-020).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (A) | Data Input | First NOR input; Schmitt-triggered for noise immunity on slow-rising control signals (e.g., sensor wake-up lines). |
| 2 (B) | Data Input | Second NOR input; electrically identical to Pin 1; allows flexible routing in space-constrained layouts. |
| 3 (GND) | Ground Reference | Primary return path for output current and internal logic; must be connected to low-impedance system ground plane. |
| 4 (Y) | Data Output | Inverting NOR output; push-pull structure eliminates need for external pull-up resistors in active-drive applications. |
| 5 (VCC) | Power Supply | Positive supply rail; requires local 100nF ceramic decoupling within 5mm of this pin for stable switching performance. |
Key Features
| Feature | Design Value |
|---|---|
| Schmitt-trigger inputs | Enables reliable logic decision with input rise/fall times up to 20 ns/V-critical for direct connection to mechanical switch debouncing or analog comparator outputs. |
| Overvoltage-tolerant inputs | Accepts VI up to 6.5V regardless of VCC level-allows interfacing with 3.3V or 12V subsystems without level shifters. |
| Matched drive strength | Equal sourcing/sinking capability (±8mA) prevents duty-cycle distortion in clocked or PWM-driven logic chains. |
| AEC-Q100 qualification | Validated for Grade 1 temperature range, HBM/CDM ESD, latch-up, and long-term reliability-required for production automotive ECUs. |
| Low static current | ICC ≤ 40μA max at -40°C to +125°C-minimizes quiescent power in always-on vehicle modules (e.g., body controller sleep mode). |
Applications
| Engine Control Unit (ECU) Signal Conditioning | Automotive Body Control Module (BCM) |
|---|---|
|
Use Scenario: Combining crankshaft position and camshaft sync signals to generate validated ignition timing enable pulses. IC Role / Device Role / Timing Role: NOR gate performing logical OR-inversion to assert safe ignition window only when both sensors report valid synchronization. Use Value: Eliminates need for microcontroller GPIO polling; provides deterministic, sub-5ns response to sensor faults-meeting ISO 26262 ASIL-B timing constraints. |
Use Scenario: Debouncing door lock/unlock switch inputs before feeding to CAN gateway MCU. IC Role / Device Role / Timing Role: Hardware-level signal combiner that rejects contact bounce via Schmitt-trigger hysteresis and NOR logic masking. Use Value: Reduces MCU interrupt load and firmware complexity; ensures glitch-free lock actuation even during vibration-induced switch chatter. |
| ADAS Camera Power Sequencing | Electric Power Steering (EPS) Fault Monitoring |
|
Use Scenario: Validating simultaneous presence of camera sensor reset, I²C bus ready, and voltage rail OK signals before enabling image capture. IC Role / Device Role / Timing Role: NOR-based "AND-NOT" logic block generating active-low enable only when all three upstream conditions are met. Use Value: Prevents corrupted frame capture due to partial initialization; meets AEC-Q100 transient immunity requirements during cold-crank sequences. |
Use Scenario: Detecting concurrent failure of torque sensor and motor phase current feedback to trigger EPS limp-home mode. IC Role / Device Role / Timing Role: Fast-fail detection element combining dual fault flags into single hardware interrupt signal with <7ns latency. Use Value: Enables deterministic safety reaction within 100μs-critical for meeting ISO 26262 ASIL-C diagnostic coverage targets without software overhead. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NOR gate applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74AHCT1G02DBVR | Same logic function and electrical specs, but in SOT-23-5 (same footprint as SOT25); rated for industrial temp only (-40°C to +85°C). | Lacks AEC-Q100 qualification and Grade 1 thermal rating; unsuitable for under-hood deployment. | Select only for non-automotive industrial controls where cost is prioritized over automotive compliance. |
| 74LVC1G02GW,125 | Lower VCC range (1.65V–5.5V); ±32mA drive at 3.3V; no Schmitt-trigger inputs; industrial temp only. | Higher drive supports fan-out >10, but lacks noise immunity for unfiltered switch inputs; not AEC-Q100 qualified. | Preferable for 3.3V FPGA/CPU I/O translation where speed and drive exceed requirements-but not for automotive signal integrity. |
Compared with SN74AHCT1G02DBVR and 74LVC1G02GW,125, the 74AHCT1G02QW5-7 uniquely delivers AEC-Q100 Grade 1 operation with Schmitt-trigger inputs and guaranteed 5V performance-making it the sole choice for safety-critical automotive logic where signal integrity and thermal reliability are non-negotiable.
Availability
74AHCT1G02QW5-7 is available at Aetrix Electronics and suitable for engine control units, body control modules, ADAS camera sequencers, and electric power steering fault monitors requiring stable component supply across extended temperature ranges and automotive lifecycle commitments.
Supply support for 74AHCT1G02QW5-7 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and integrated circuits, specializing in high-reliability components for automotive, industrial, and computing markets with IATF 16949-certified production facilities.
This device belongs to Diodes' AHCT logic family-designed specifically for 5V automotive applications requiring AEC-Q100 qualification, robust ESD protection, and guaranteed operation across extreme ambient temperatures.
FAQ
Is the 74AHCT1G02QW5-7 pin-compatible with standard 74-series SOT23-5 NOR gates?
Yes-it uses the industry-standard SOT25 pinout (A-B-GND-Y-VCC), matching SN74AHCT1G02DBVR and other 5-pin logic gates. Pin 1 is A input, Pin 2 is B input, Pin 3 is GND, Pin 4 is Y output, and Pin 5 is VCC. No layout redesign is needed when upgrading from industrial equivalents to this AEC-Q100 version.
Can unused inputs be left floating in the 74AHCT1G02QW5-7?
No-unused inputs must be tied to VCC or GND per the datasheet's recommended operating conditions. Floating inputs may cause increased ICC, erratic output states, or oscillation due to CMOS input stage sensitivity. For NOR logic, tying an unused input to GND forces the gate to function as a single-input inverter (Y = NOT A).
What is the maximum capacitive load the 74AHCT1G02QW5-7 can drive reliably?
The device is characterized up to 50pF load capacitance, with propagation delay increasing from 3.5ns (15pF) to 4.9ns (50pF) at VCC = 5V. Driving >50pF risks exceeding specified tPD limits and may cause ringing or undershoot; for heavier loads, add a series resistor (22–47Ω) near the output to dampen reflections.
Does the 74AHCT1G02QW5-7 support mixed-voltage interfacing?
Yes-the inputs tolerate voltages up to 6.5V independent of VCC, allowing direct connection to 3.3V or 12V signals without level shifters. However, output swing is rail-to-rail (0V to VCC), so interfacing with lower-voltage receivers requires checking VIH/VIL thresholds; for 3.3V systems, VCC must remain at 5V to ensure VOH ≥ 3.94V (min) at -8mA.
74AHCT1G02QW5-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- 74AHCT
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- NOR Gate
- Number of Circuits:
- 1
- Number of Inputs:
- 2
- Features:
- -
- Voltage - Supply:
- 4.5V ~ 5.5V
- Current - Quiescent (Max):
- 1 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:
- SOT-25
74AHCT1G02QW5-7 FAQ
1.How can I place an order for 74AHCT1G02QW5-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74AHCT1G02QW5-7 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 74AHCT1G02QW5-7 reliable?
The price and inventory of 74AHCT1G02QW5-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74AHCT1G02QW5-7 is usually 5 days.
3.What payment methods are accepted for 74AHCT1G02QW5-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74AHCT1G02QW5-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74AHCT1G02QW5-7?
74AHCT1G02QW5-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74AHCT1G02QW5-7 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 74AHCT1G02QW5-7?
For technical support, including 74AHCT1G02QW5-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74AHCT1G02QW5-7 requirements.
6.How does Aetrix verify that 74AHCT1G02QW5-7 is sourced from the original manufacturer or authorized distributors?
All 74AHCT1G02QW5-7 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 74AHCT1G02QW5-7 meets industry standards.
7.What is the process for return or replacement of 74AHCT1G02QW5-7?
All 74AHCT1G02QW5-7 units undergo pre-shipment inspection (PSI). If there is an issue with 74AHCT1G02QW5-7, 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 74AHCT1G02QW5-7 part is unused and in its original packaging.
Return procedure for 74AHCT1G02QW5-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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