Nexperia USA Inc. 74HCT1G32GV-Q100H
- Part No.:
- 74HCT1G32GV-Q100H
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Gates and Inverters
- Package:
- SC-74A, SOT-753
- Datasheet:
-
74HCT1G32GV-Q100H.pdf
- Description:
- IC GATE OR 1CH 2-INP SC74A
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
74HCT1G32GV-Q100 from Nexperia is a single 2-input OR gate IC qualified to AEC-Q100 Grade 1 for automotive use, operating from -40 °C to +125 °C with supply voltage range 4.5 V to 5.5 V, TTL-compatible input thresholds (VIH = 2.0 V min, VIL = 0.8 V max), and propagation delay of 10 ns (typ) at VCC = 4.5 V and CL = 50 pF. It performs basic logic summation in powertrain control modules and body electronics.
For engineers reviewing the 74HCT1G32GV-Q100 datasheet, 74HCT1G32GV-Q100 pinout, 74HCT1G32GV-Q100 application, or 74HCT1G32GV-Q100 equivalent, this page delivers verified functional identity, automotive-grade thermal and electrical specs, SC-74A (SOT753) package mapping, real-world timing behavior, and validated alternatives for logic-level signal combining in safety-critical vehicle subsystems.
Technical Context
This device implements a single 2-input positive-logic OR function (Y = A + B) using CMOS technology with TTL-level input compatibility. Its inputs include clamp diodes enabling safe interfacing to voltages exceeding VCC when used with current-limiting resistors.
It operates across two temperature grades: -40 °C to +125 °C (Grade 1), with static VIH/VIL thresholds fixed at 2.0 V/0.8 V (VCC = 4.5–5.5 V), and dynamic tpd tightly specified at 10–27 ns depending on load and supply. Output drive capability is ±2.0 mA at VCC = 4.5 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | Single 2-input OR gate (Y = A OR B); enables compact discrete logic synthesis without gate arrays. |
| Supply Voltage Range | 4.5 V to 5.5 V; matches standard automotive 5 V rail with 10% tolerance margin. |
| Input Thresholds | VIH ≥ 2.0 V, VIL ≤ 0.8 V (VCC = 4.5–5.5 V); ensures reliable recognition of TTL-sourced signals. |
| Propagation Delay | 10 ns typ (VCC = 4.5 V, CL = 50 pF); supports sub-100 MHz combinational logic timing in control paths. |
| Output Drive | ±2.0 mA (VOH/VOL at VCC = 4.5 V); sufficient to drive multiple 74HCT inputs or small capacitive loads. |
| Operating Temperature | -40 °C to +125 °C (AEC-Q100 Grade 1); certified for under-hood and transmission control unit deployment. |
| ESD Robustness | HBM > 2000 V, CDM > 1000 V; withstands handling and board-level transients in automotive assembly. |
Pinout & Package
74HCT1G32GV-Q100 is housed in SC-74A (SOT753), a 5-pin plastic surface-mounted package measuring 1.7 mm × 1.3 mm × 0.9 mm with gull-wing leads and pin 1 index marked by a notch or dot adjacent to marking "T32".
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (B) | Data input B | One of two logic inputs; accepts TTL-level signals up to VCC + 0.5 V via internal clamp diodes. |
| 2 (A) | Data input A | Primary logic input; electrically identical to Pin 1; enables OR operation with B. |
| 3 (GND) | Ground reference | 0 V return path for all internal circuitry and output current sinking. |
| 4 (Y) | Data output Y | Active-high OR result; drives high/low with symmetrical impedance and balanced rise/fall times. |
| 5 (VCC) | Positive supply | Power rail connection; supports 4.5–5.5 V operation with <20 μA quiescent current at 5.5 V. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for automotive use with full temperature, reliability, and ESD testing per JEDEC standards. |
| TTL-compatible inputs | Accepts standard 5 V TTL logic levels without level-shifting, simplifying integration with legacy controllers. |
| Symmetrical output impedance | Ensures matched rise/fall times (<15% skew), critical for glitch-free timing in synchronous logic paths. |
| Clamp diode protected inputs | Allows safe interface to overvoltage sources (e.g., sensor outputs) when used with series current-limiting resistors. |
| Low ICC and CI | Quiescent supply current ≤20 μA and input capacitance = 1.5 pF, minimizing loading on upstream drivers. |
Applications
| Engine Control Unit (ECU) Fault Monitoring | Body Control Module (BCM) Door Lock Logic |
|---|---|
Use Scenario: Combining multiple fault flags (e.g., camshaft sensor failure, crankshaft sensor failure) into a single aggregated "engine fault" signal for dashboard warning activation. IC Role / Device Role / Timing Role: Performs real-time Boolean OR of asynchronous digital fault inputs; no clock required. Use Value: Reduces PCB footprint vs. multi-gate packages while maintaining deterministic response time (<27 ns worst-case). |
Use Scenario: Merging door-open, key-fob unlock, and central-lock override signals to trigger actuator driver enable. IC Role / Device Role / Timing Role: Single-stage combinatorial logic element in low-power always-on domain of BCM. Use Value: Enables direct TTL-level interfacing with microcontroller GPIOs and mechanical switch inputs without external pull-ups or buffers. |
| Transmission Control Unit (TCU) Gear Selection Validation | Advanced Driver Assistance System (ADAS) Sensor Fusion Alert |
Use Scenario: Validating that at least one of multiple gear position sensors reports valid state before enabling torque request. IC Role / Device Role / Timing Role: Safety-relevant logic gate in ASIL-B signal path; operates within defined timing budget. Use Value: Provides fail-safe "any sensor active" indication with AEC-Q100-certified reliability and thermal stability up to +125 °C. |
Use Scenario: Aggregating lane-departure, forward-collision, and blind-spot detection alerts into unified driver warning output. IC Role / Device Role / Timing Role: Low-latency combiner feeding interrupt input of ADAS SoC; minimal propagation delay critical. Use Value: Delivers sub-10 ns typical delay at 4.5 V, ensuring alert fusion occurs within real-time deadline constraints. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 2-input OR gate applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74HCT1G32GW-Q100 | TSSOP5 (SOT353-1) package; 1.25 mm body width; 0.65 mm lead pitch; slightly higher thermal resistance than SC-74A. | Better suited for reflow-compatible layouts requiring larger pad spacing; same electrical specs and AEC-Q100 Grade 1 rating. | Select when board layout requires wider lead pitch or compatibility with legacy TSSOP tooling. |
| 74HCT1G32GZ-Q100 | XSON5 (SOT8065-1) package; 1.1 × 0.85 × 0.5 mm; side-wettable flanks; no leads; lower profile and improved thermal performance. | Ideal for space-constrained modules (e.g., radar sensors); requires solder paste volume and inspection optimized for leadless packages. | Select for ultra-dense automotive modules where height <0.55 mm and thermal dissipation are prioritized. |
Compared with 74HCT1G32GV-Q100, the GW variant offers easier optical inspection and hand-soldering due to gull-wing leads, while the GZ variant delivers superior thermal resistance and board area reduction at the cost of more demanding assembly process control.
Availability
74HCT1G32GV-Q100 is available at Aetrix Electronics and suitable for engine control units, body control modules, and transmission control units requiring stable component supply across automotive production lifecycles.
Supply support for 74HCT1G32GV-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 consumer markets.
This device belongs to Nexperia's AEC-Q100-qualified 74HCT logic family, engineered specifically for robust, low-power, TTL-compatible digital interfacing in harsh automotive environments.
FAQ
What is the maximum allowable supply voltage for 74HCT1G32GV-Q100?
The absolute maximum supply voltage is +7.0 V, but the recommended operating range is strictly 4.5 V to 5.5 V per AEC-Q100 Grade 1 specifications. Operation above 5.5 V voids automotive qualification and risks parametric shift or latch-up, even if within absolute maximum ratings.
Can 74HCT1G32GV-Q100 interface directly with 3.3 V microcontrollers?
No - its TTL-compatible inputs require VIH ≥ 2.0 V, which is met by 3.3 V logic, but its minimum VCC is 4.5 V. It cannot be powered from 3.3 V rails. Level translation or a 5 V supply is mandatory for correct operation and AEC-Q100 compliance.
Does this part support hot insertion or live swapping in automotive systems?
No - it lacks Ioff (power-off protection) and bus-hold features. Applying input signals while VCC is unpowered may cause excessive current through internal clamp diodes, violating JESD78 latch-up limits. Power sequencing must ensure VCC is stable before asserting inputs.
How does the SC-74A (SOT753) package compare thermally to TSSOP5 for this device?
SC-74A has a thermal resistance (RθJA) of ~263 K/W (derating 3.8 mW/K above 85 °C), while TSSOP5 is ~227 K/W. The SC-74A offers slightly better thermal performance in standard PCB layouts due to shorter lead length and lower junction-to-board resistance, supporting higher ambient operation in dense modules.
74HCT1G32GV-Q100H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74HCT
- 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:
- 4.5V ~ 5.5V
- Current - Quiescent (Max):
- 20 µA
- Current - Output High, Low:
- 2mA, 2mA
- Input Logic Level - Low:
- 0.8V
- Input Logic Level - High:
- 2V
- Max Propagation Delay @ V, Max CL:
- 10ns @ 4.5V, 50pF
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-74A
74HCT1G32GV-Q100H FAQ
1.How can I place an order for 74HCT1G32GV-Q100H through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HCT1G32GV-Q100H 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 74HCT1G32GV-Q100H reliable?
The price and inventory of 74HCT1G32GV-Q100H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HCT1G32GV-Q100H is usually 5 days.
3.What payment methods are accepted for 74HCT1G32GV-Q100H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HCT1G32GV-Q100H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HCT1G32GV-Q100H?
74HCT1G32GV-Q100H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HCT1G32GV-Q100H 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 74HCT1G32GV-Q100H?
For technical support, including 74HCT1G32GV-Q100H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HCT1G32GV-Q100H requirements.
6.How does Aetrix verify that 74HCT1G32GV-Q100H is sourced from the original manufacturer or authorized distributors?
All 74HCT1G32GV-Q100H 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 74HCT1G32GV-Q100H meets industry standards.
7.What is the process for return or replacement of 74HCT1G32GV-Q100H?
All 74HCT1G32GV-Q100H units undergo pre-shipment inspection (PSI). If there is an issue with 74HCT1G32GV-Q100H, 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 74HCT1G32GV-Q100H part is unused and in its original packaging.
Return procedure for 74HCT1G32GV-Q100H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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