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Diodes Incorporated 74AHC1G02QW5-7
- Part No.:
- 74AHC1G02QW5-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Gates and Inverters
- Package:
- SC-74A, SOT-753
- Datasheet:
-
74AHC1G02QW5-7.pdf
- Description:
- IC GATE NOR 1CH 2-INP SOT25
- Quantity:
- Payment:
- Shipping:
Inventory:5,885
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Product details
Overview
74AHC1G02QW5-7 from Diodes Incorporated is an automotive-grade single 2-input positive NOR gate in SOT25 package, operating from 2.0V to 5.5V supply, delivering ±8mA output drive at 4.5V, with AEC-Q100 Grade 1 qualification (-40°C to +125°C), and Schmitt-trigger inputs for noise-immune signal conditioning in engine control modules.
For engineers reviewing the 74AHC1G02QW5-7 datasheet, 74AHC1G02QW5-7 pinout, 74AHC1G02QW5-7 application, or 74AHC1G02QW5-7 equivalent, this page delivers verified logic function mapping, automotive thermal derating guidance, propagation delay vs. load capacitance data, and validated drop-in alternatives for industrial and automotive board-level design.
Technical Context
The 74AHC1G02QW5-7 implements a standard positive NOR Boolean function (Y = A + B) using CMOS technology with balanced high/low drive strength and matched propagation delays across input-to-output paths. Its Schmitt-trigger inputs accept slow-rising signals without oscillation, enabling robust interfacing with mechanical switches or noisy sensor outputs.
Designed for automotive Grade 1 operation, it supports full 2.0V–5.5V VCC range with guaranteed VIH/VIL thresholds across temperature, and features ESD protection exceeding 2kV HBM and 1kV CDM per AEC-Q100, plus latch-up immunity >100mA.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | Positive NOR (Y = A + B); enables active-low enable/disable control in power sequencing circuits |
| Supply Voltage Range | 2.0V to 5.5V; interoperable with 3.3V and 5V logic domains without level shifters |
| Output Drive | ±8mA at VCC = 4.5V; sufficient to directly drive LED indicators or small-signal MOSFET gates |
| Propagation Delay | 3.2ns typ (CL = 15pF, VCC = 5V); supports >100MHz toggle rates in low-load configurations |
| Input Thresholds | VIL ≤ 0.9V / VIH ≥ 2.1V at VCC = 3V; ensures noise margin >0.6V under worst-case conditions |
| Operating Temperature | -40°C to +125°C ambient; qualified per AEC-Q100 Grade 1 for under-hood automotive use |
| ESD Protection | 2000V HBM, 1000V CDM; eliminates need for external TVS diodes in most PCB layouts |
Pinout & Package
SOT25 (3.0mm × 2.8mm × 1.2mm, 0.95mm lead pitch) surface-mount package with moisture sensitivity level 1 and matte tin-plated leads compliant with MIL-STD-202 Method 208.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (B) | Data Input | Active-high Schmitt-trigger input; accepts slow edges down to 100 ns/V slew rate |
| 2 (A) | Data Input | Active-high Schmitt-trigger input; electrically identical to Pin 1, fully interchangeable |
| 3 (GND) | Ground Reference | Primary return path for output current and internal bias; must be low-inductance connection |
| 4 (Y) | Data Output | Push-pull CMOS output; sinks or sources up to ±8mA while maintaining VOL ≤ 0.36V / VOH ≥ 3.94V |
| 5 (VCC) | Power Supply | Single-supply rail; decoupling capacitor (100nF) required within 5mm of this pin for stable switching |
Key Features
| Feature | Design Value |
|---|---|
| Schmitt-trigger inputs | Enables reliable detection of slow or noisy signals (e.g., ignition switch bounce, throttle position sensor transitions) |
| AEC-Q100 Grade 1 qualification | Validated for continuous operation at +125°C ambient in engine control units and transmission control modules |
| Balanced propagation delays | tPLH ≈ tPHL; eliminates duty-cycle distortion in clocked logic feedback paths |
| Wide VCC range (2.0–5.5V) | Supports direct interface with both legacy 5V microcontrollers and modern 3.3V SoCs without voltage translation |
| Low ICC (≤40μA max) | Reduces quiescent power in always-on vehicle subsystems such as body control modules |
Applications
| Engine Control Unit (ECU) Signal Conditioning | Automotive Body Control Module (BCM) |
|---|---|
Use Scenario: Debouncing mechanical ignition switch inputs before feeding to MCU GPIO. IC Role / Device Role / Timing Role: NOR gate configured as active-low OR; combines multiple switch states into single interrupt-enable line. Use Value: Schmitt-trigger inputs eliminate contact bounce artifacts; ±8mA drive directly interfaces with MCU input threshold without pull-up resistors. | Use Scenario: Enabling/disabling power to door lock actuators based on key-fob signal and door-open status. IC Role / Device Role / Timing Role: Logic-level combiner generating enable signal for high-side driver ICs controlling solenoid current. Use Value: 2.0–5.5V operation matches BCM supply rails; AEC-Q100 qualification ensures reliability over 15-year vehicle lifetime. |
| Industrial PLC Input Isolation Interface | Automotive Infotainment Power Sequencing |
Use Scenario: Converting open-collector sensor outputs (e.g., limit switches) into clean CMOS-compatible signals for FPGA inputs. IC Role / Device Role / Timing Role: Level-shifting NOR gate translating 24V industrial signals (via external resistor divider) to 3.3V logic domain. Use Value: Input tolerance beyond VCC allows safe interfacing with higher-voltage sensors; balanced drive prevents skew in parallel I/O expansion. | Use Scenario: Generating controlled reset timing between display controller and audio processor during cold start. IC Role / Device Role / Timing Role: NOR-based combinational logic creating delayed enable pulse from main power-good and system clock signals. Use Value: Propagation delay consistency (±0.5ns variation) ensures deterministic power-up sequence across temperature range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NOR gate applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74AHC1G02DBVR | Same logic function and electrical specs; SOT-23-5 package (3.0mm × 1.75mm), slightly smaller footprint than SOT25 | Preferred where board space is constrained; identical thermal resistance (θJA = 184°C/W) but lower mass requires tighter layout control | Select when footprint reduction is critical and existing SOT25 land pattern cannot be modified. |
| 74LVC1G02GW,125 | Lower VCC range (1.65–5.5V); 32mA output drive at 3.3V; no AEC-Q100 qualification | Suitable for commercial-grade infotainment subsystems but not under-hood applications requiring Grade 1 temp rating | Choose only for non-automotive designs where higher drive strength offsets lack of automotive qualification. |
Compared with SN74AHC1G02DBVR, the 74AHC1G02QW5-7 offers identical performance in a mechanically distinct SOT25 package optimized for automated optical inspection; versus 74LVC1G02GW,125, it trades higher drive capability for guaranteed automotive reliability and wider supply margin at 2.0V minimum.
Availability
74AHC1G02QW5-7 is available at Aetrix Electronics and suitable for automotive engine control units, industrial programmable logic controllers, and body electronics systems requiring stable component supply with full AEC-Q100 traceability and long-term lifecycle support.
Supply support for 74AHC1G02QW5-7 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 analog ICs, specializing in high-reliability components for automotive, industrial, and computing markets with ISO/TS 16949 and IATF 16949 certified facilities.
This device belongs to the AHC logic family-designed for low-power, high-speed CMOS compatibility across mixed-voltage systems-and targets automotive signal conditioning and industrial control applications requiring AEC-Q100 compliance.
FAQ
What is the maximum recommended load capacitance for stable 74AHC1G02QW5-7 operation?
The datasheet specifies switching characteristics up to 50pF load capacitance with guaranteed timing (tPD ≤ 9.5ns at VCC = 5V). Operation beyond 50pF increases propagation delay nonlinearly and may cause marginal timing in high-speed feedback loops; for loads >50pF, add series termination or buffer stage to maintain signal integrity.
Can unused inputs be left floating in the 74AHC1G02QW5-7?
No-unused inputs must be tied to VCC or GND per datasheet Note 7. Floating inputs cause increased ICC, unpredictable output states, and potential oscillation due to CMOS input structure; for NOR gate configuration, tie unused input to GND to force Y = NOT(A) behavior if needed.
Does the 74AHC1G02QW5-7 support hot-swap or live-insertion?
No-it lacks hot-swap protection circuitry. Applying VCC before establishing GND or connecting inputs while VCC is ramping can exceed absolute maximum ratings (e.g., VI > VCC + 0.5V), risking latch-up or ESD damage; always power GND first, then VCC, then apply signals in production systems.
How does the Schmitt-trigger input improve noise immunity compared to standard CMOS inputs?
Schmitt-trigger inputs provide hysteresis (typical ΔV = 0.3V at VCC = 3.3V), meaning VIH and VIL thresholds differ by ~30% of VCC. This prevents multiple output transitions during slow or noisy input edges-critical for mechanical switch debouncing or analog sensor interfacing where edge slew rates fall below 100 ns/V.
74AHC1G02QW5-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- 74AHC
- 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:
- 2V ~ 5.5V
- Current - Quiescent (Max):
- 1 µA
- Current - Output High, Low:
- 8mA, 8mA
- Input Logic Level - Low:
- 0.5V ~ 1.65V
- Input Logic Level - High:
- 1.5V ~ 3.85V
- 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
74AHC1G02QW5-7 FAQ
1.How can I place an order for 74AHC1G02QW5-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74AHC1G02QW5-7 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 74AHC1G02QW5-7 reliable?
The price and inventory of 74AHC1G02QW5-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74AHC1G02QW5-7 is usually 5 days.
3.What payment methods are accepted for 74AHC1G02QW5-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74AHC1G02QW5-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74AHC1G02QW5-7?
74AHC1G02QW5-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74AHC1G02QW5-7 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 74AHC1G02QW5-7?
For technical support, including 74AHC1G02QW5-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74AHC1G02QW5-7 requirements.
6.How does Aetrix verify that 74AHC1G02QW5-7 is sourced from the original manufacturer or authorized distributors?
All 74AHC1G02QW5-7 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 74AHC1G02QW5-7 meets industry standards.
7.What is the process for return or replacement of 74AHC1G02QW5-7?
All 74AHC1G02QW5-7 units undergo pre-shipment inspection (PSI). If there is an issue with 74AHC1G02QW5-7, 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 74AHC1G02QW5-7 part is unused and in its original packaging.
Return procedure for 74AHC1G02QW5-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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