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Diodes Incorporated 74AHC1G32QW5-7
- Part No.:
- 74AHC1G32QW5-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Gates and Inverters
- Package:
- SC-74A, SOT-753
- Datasheet:
-
74AHC1G32QW5-7.pdf
- Description:
- IC GATE OR 1CH 2-INP SOT25
- Quantity:
- Payment:
- Shipping:
Inventory:2,581
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Product details
Overview
74AHC1G32QW5-7 from Diodes Incorporated is an automotive-grade single 2-input positive OR 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 robust noise immunity in engine control and body electronics.
For engineers reviewing the 74AHC1G32QW5-7 datasheet, 74AHC1G32QW5-7 pinout, 74AHC1G32QW5-7 application, or 74AHC1G32QW5-7 equivalent, this page delivers verified electrical specs, validated pin functions, automotive-qualified thermal and ESD performance, and real-world logic interface use cases - all confirmed against Diodes' DS41454 Rev. 1–2.
Technical Context
This device implements a single non-inverting OR function (Y = A + B) using advanced CMOS AHC technology, enabling rail-to-rail logic swing and balanced propagation delays (typ. 3.2ns at 5V/15pF). Its Schmitt-trigger inputs accept slow-rising signals without oscillation, supporting direct interfacing with sensors and switches in noisy automotive environments.
Designed for IATF 16949-certified production, it features ±2000V HBM ESD protection, latch-up immunity >100mA, and operates reliably across full -40°C to +125°C ambient range while maintaining <10μA ICC at 5.5V - critical for always-on vehicle subsystems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | Single 2-input positive OR gate (Y = A + B), non-inverting, push-pull output |
| Supply Voltage Range | 2.0V to 5.5V - supports mixed-voltage domains including 3.3V microcontrollers and 5V legacy systems |
| Output Drive | ±8mA at VCC = 4.5V - sufficient to directly drive LED indicators or small logic loads without buffering |
| Propagation Delay | Typ. 3.2ns (max 7.0ns) at VCC = 5V, CL = 15pF - enables timing-critical signal combining in ADAS sensor fusion paths |
| Input Threshold | Schmitt-trigger hysteresis - eliminates chatter on slow or noisy inputs (e.g., mechanical switch debouncing) |
| ESD Protection | 2000V HBM, 1000V CDM per AEC-Q100 - ensures survivability during automated PCB assembly and field service |
| Operating Temperature | -40°C to +125°C ambient (Grade 1) - qualified for under-hood and cabin control module deployment |
Pinout & Package
SOT25 (3.0mm × 2.8mm × 1.2mm, 0.95mm lead pitch) surface-mount package with matte tin-plated leads, moisture sensitivity level 1, and JEDEC-compliant footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (A) | Data Input | First OR operand input; accepts voltages up to 6.5V independent of VCC - enables level-shifting from higher-voltage sensors |
| 2 (B) | Data Input | Second OR operand input; Schmitt-triggered for noise rejection on slow edges (e.g., HVAC potentiometer wipers) |
| 3 (GND) | Ground Reference | Return path for logic and output current; must be low-impedance to maintain VOL ≤ 0.1V under 8mA sink |
| 4 (Y) | Data Output | Push-pull CMOS output driving high/low to rail; capable of sourcing/sinking ±8mA at 4.5V for direct MCU interrupt assertion |
| 5 (VCC) | Supply Voltage | Primary power rail (2.0–5.5V); decoupling capacitor (100nF) required within 5mm to suppress switching noise |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 Qualification | Validated for automotive use from -40°C to +125°C ambient, PPAP-capable, manufactured in IATF 16949 facilities |
| Schmitt-Trigger Inputs | Enables reliable operation with slow-rise/fall signals (e.g., thermistor-based temperature monitoring circuits) |
| Wide Supply Range (2.0–5.5V) | Eliminates need for level shifters when interfacing 3.3V MCUs with 5V analog front-ends or legacy peripherals |
| Low Dynamic Power | CPD = 10pF at 1MHz - reduces switching current in battery-powered telematics modules |
| Input Voltage Independence | Inputs tolerate VI up to 6.5V regardless of VCC - allows safe connection to external 5V sensors even when VCC = 3.3V |
Applications
| Engine Control Unit (ECU) Fault Monitoring | Automotive Body Control Module (BCM) |
|---|---|
|
Use Scenario: Combining multiple fault flags (e.g., overtemperature, overcurrent, communication timeout) into a single aggregated "system error" signal for dashboard warning activation. IC Role / Device Role / Timing Role: Single-point OR logic aggregation with sub-10ns propagation delay ensuring real-time fault visibility. Use Value: Reduces MCU GPIO count by consolidating 3+ discrete fault lines into one interrupt-capable output, simplifying firmware polling. |
Use Scenario: Enabling interior lighting only when either door open switch OR key fob proximity sensor asserts active-high signal. IC Role / Device Role / Timing Role: Low-power, Schmitt-triggered OR gate interfacing mechanical and RF-based inputs with 3.3V lighting controller. Use Value: Eliminates need for external pull-ups and software debouncing - hardware-level signal conditioning improves system responsiveness and reliability. |
| Industrial Motor Drive Safety Interlock | ADAS Camera Power Sequencing |
|
Use Scenario: Validating that both emergency stop button and thermal cutoff switch are released before enabling motor enable signal. IC Role / Device Role / Timing Role: Fail-safe OR gate with latch-up immunity >100mA and AEC-Q100-rated robustness for safety-critical path. Use Value: Provides hardware-enforced redundancy - prevents accidental motor start even if MCU firmware fails or resets. |
Use Scenario: Generating camera module power-on ready signal only after both image sensor and ISP voltage rails stabilize. IC Role / Device Role / Timing Role: Fast, low-jitter OR gate synchronizing dual-rail power-good signals to trigger sequencer enable. Use Value: Ensures deterministic boot sequence timing (≤7ns skew) between sensor and processor domains, avoiding initialization failures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar single 2-input OR gate applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC1G32DBVR | Lower VCC range (1.65–5.5V); no AEC-Q100 qualification; 3.5ns tPD at 3.3V | Not suitable for automotive Grade 1 environments; limited to industrial/commercial temp range (-40°C to +85°C) | Select only for cost-sensitive non-automotive designs where AEC-Q100 compliance is not required. |
| 74AUP1G32GW,125 | Ultra-low power (ICC < 1μA typical); narrower VCC (0.8–3.6V); no Schmitt inputs | Targeted for battery-powered wearables; incompatible with 5V sensor interfaces or noisy automotive harnesses | Prefer for portable devices needing nanowatt standby; avoid where input noise immunity or 5V tolerance is needed. |
Compared with SN74LVC1G32DBVR and 74AUP1G32GW,125, the 74AHC1G32QW5-7 uniquely combines AEC-Q100 Grade 1 qualification, 5.5V-tolerant Schmitt inputs, and ±8mA drive - making it the only choice for safety-relevant OR logic in automotive powertrain and chassis systems.
Availability
74AHC1G32QW5-7 is available at Aetrix Electronics and suitable for engine control units, body control modules, and ADAS camera sequencing requiring stable component supply, long-term automotive lifecycle support, and traceable AEC-Q100-compliant sourcing.
Supply support for 74AHC1G32QW5-7 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 solutions for automotive, industrial, and computing markets with IATF 16949-certified operations.
This device belongs to Diodes' AHC logic family - engineered for automotive-grade speed, noise immunity, and supply flexibility across 2.0V–5.5V rails, targeting signal conditioning and interface consolidation in harsh-environment ECUs and control modules.
FAQ
Is 74AHC1G32QW5-7 pin-compatible with standard 5-pin SOT25 logic gates?
Yes - it uses the industry-standard SOT25 pinout (A-B-GND-Y-VCC) shared by 74AHC1Gxx series devices. Pin 1 is A, Pin 2 is B, Pin 3 is GND, Pin 4 is Y, and Pin 5 is VCC. This allows drop-in replacement of other single-gate AHC logic in existing layouts without PCB revision.
Can inputs exceed VCC without damage?
Yes - absolute maximum input voltage is -0.5V to 6.5V, independent of VCC. This permits direct connection to 5V sensors even when VCC = 3.3V, eliminating external level shifters. However, sustained VI > VCC + 0.5V may increase ICC and should be avoided in continuous operation.
What is the minimum load capacitance for guaranteed timing performance?
Timing specifications (e.g., tPD ≤ 7.0ns) are guaranteed for CL = 15pF and CL = 50pF loads. Operation with CL < 15pF is functional but not characterized - propagation delay may decrease slightly, while output rise/fall times become faster and more sensitive to PCB trace inductance.
Does this device require external pull-up or pull-down resistors on unused inputs?
No - unused inputs must be tied to VCC or GND per recommended operating conditions, but internal protection diodes and CMOS structure eliminate need for external resistors. Floating inputs are strictly prohibited as they cause excessive ICC and potential logic instability due to intermediate voltage states.
74AHC1G32QW5-7 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:
- OR 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
74AHC1G32QW5-7 FAQ
1.How can I place an order for 74AHC1G32QW5-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74AHC1G32QW5-7 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 74AHC1G32QW5-7 reliable?
The price and inventory of 74AHC1G32QW5-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74AHC1G32QW5-7 is usually 5 days.
3.What payment methods are accepted for 74AHC1G32QW5-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74AHC1G32QW5-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74AHC1G32QW5-7?
74AHC1G32QW5-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74AHC1G32QW5-7 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 74AHC1G32QW5-7?
For technical support, including 74AHC1G32QW5-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74AHC1G32QW5-7 requirements.
6.How does Aetrix verify that 74AHC1G32QW5-7 is sourced from the original manufacturer or authorized distributors?
All 74AHC1G32QW5-7 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 74AHC1G32QW5-7 meets industry standards.
7.What is the process for return or replacement of 74AHC1G32QW5-7?
All 74AHC1G32QW5-7 units undergo pre-shipment inspection (PSI). If there is an issue with 74AHC1G32QW5-7, 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 74AHC1G32QW5-7 part is unused and in its original packaging.
Return procedure for 74AHC1G32QW5-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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