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onsemi MC74VHC1G02DFT2G-Q
- Part No.:
- MC74VHC1G02DFT2G-Q
- Manufacturer:
- onsemi
- Category:
- Gates and Inverters
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
MC74VHC1G02DFT2G-Q.pdf
- Description:
- SINGLE 2-INPUT NOR GATE
- Quantity:
- Payment:
- Shipping:
Inventory:4,189
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Product details
Overview
MC74VHC1G02DFT2G-Q from onsemi is a single 2-input NOR gate IC designed for high-speed logic interfacing in space-constrained applications. It operates from 2.0 V to 5.5 V, delivers 3.5 ns typical propagation delay at 5 V, features over-voltage tolerant inputs/outputs up to 5.5 V, and supports partial power-down protection (IOFF). It is used in automotive body control modules for signal conditioning between mixed-voltage subsystems.
For engineers reviewing the MC74VHC1G02DFT2G-Q datasheet, pinout, applications, or equivalent options, key selection criteria include CMOS-level input thresholds, AEC-Q100 qualification, SC-88A package compatibility, and 8 mA drive capability at 3.0 V.
Technical Context
This device implements a standard 2-input NOR logic function with complementary CMOS output stage. Its input structure accepts voltages up to 5.5 V independent of VCC, enabling robust 3 V–5 V level translation without external components.
The IOFF feature disables output leakage when VCC = 0 V, preventing back-powering in partial power-down systems. Propagation delay is specified across −55 °C to +125 °C and supports operation in automotive under-hood environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2.0 V to 5.5 V - Enables direct integration into 3.3 V and 5 V logic domains without level shifters. |
| tPD (Typ) | 3.5 ns at 5 V - Supports >100 MHz toggle rates in critical timing paths. |
| Input Thresholds | CMOS-level (VIH = 3.85 V, VIL = 1.65 V @ 5.5 V) - Matches standard CMOS logic families, not TTL. |
| Drive Strength | ±8 mA at 3.0 V - Sufficient to directly drive multiple 74LVC inputs or small LED indicators. |
| Over-Voltage Tolerance | Inputs/outputs withstand 5.5 V regardless of VCC - Eliminates need for clamping diodes in mixed-supply interfaces. |
| IOFF Leakage | ≤10 µA at VCC = 0 V - Prevents current backflow during hot-swap or partial power-down sequences. |
| Operating Temp | −55 °C to +125 °C - Qualified for automotive engine compartment and industrial control environments. |
Pinout & Package
MC74VHC1G02DFT2G-Q is packaged in SC-88A (Case 419A), a 5-pin surface-mount package measuring 2.00 mm × 1.25 mm × 0.95 mm with 0.65 mm pitch. Pin 1 is marked by a dot or beveled edge per JEDEC MO-203.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Input B | Second logic input; accepts 0–5.5 V regardless of VCC; CMOS threshold. |
| 2 | Input A | Primary logic input; identical electrical behavior to Pin 1. |
| 3 | GND | Ground reference for all internal circuitry and I/O; must be connected before VCC. |
| 4 | Output Y | NOR result (Y = NOT(A OR B)); drives high/low with rail-to-rail swing and ±8 mA capability. |
| 5 | VCC | Positive supply; powers internal logic and output stage; range 2.0–5.5 V. |
Key Features
| Feature | Design Value |
|---|---|
| CMOS-level input thresholds | Ensures compatibility with 3.3 V and 5 V CMOS outputs without false triggering or excessive noise margin loss. |
| 5.5 V over-voltage tolerant I/O | Allows safe connection to 5 V buses while operating from 3.3 V supply-no external protection required. |
| IOFF partial power-down support | Blocks current flow through outputs when VCC = 0 V, protecting downstream circuits during power sequencing. |
| AEC-Q100 Grade 1 qualification | Validated for automotive applications requiring operation from −40 °C to +125 °C ambient with full reliability testing. |
| SC-88A footprint | Enables high-density PCB layouts in compact ECUs and sensor nodes; compatible with standard SMT reflow profiles. |
Applications
| Automotive Body Control Unit | Industrial PLC Input Conditioning |
|---|---|
Use Scenario: Signal arbitration between door lock actuator feedback and central controller status lines. IC Role / Device Role / Timing Role: NOR gate performing active-low enable logic for latch driver enable/disable sequencing. Use Value: Eliminates discrete resistor-diode networks; reduces BOM count and improves timing predictability vs. RC-based solutions. |
Use Scenario: Debouncing and polarity inversion of mechanical limit switch inputs in motor control cabinets. IC Role / Device Role / Timing Role: Single-gate logic element converting normally-open switch signals to active-high ready flags. Use Value: Provides sub-10 ns response with guaranteed noise immunity-superior to microcontroller GPIO polling alone. |
| Medical Infusion Pump Interface | Consumer Appliance Power Sequencing |
Use Scenario: Combining occlusion sensor alert and pump motor fault signals into unified safety shutdown line. IC Role / Device Role / Timing Role: Fail-safe combinatorial logic block generating hardware-level emergency stop assertion. Use Value: Meets IEC 62304 Class C timing requirements with deterministic <10 ns propagation-no software latency. |
Use Scenario: Enabling main power rail only after auxiliary regulators stabilize in smart washing machine control board. IC Role / Device Role / Timing Role: Gate implementing AND-NOT logic between 5 V standby and 3.3 V core regulator OK signals. Use Value: Reduces reliance on firmware-controlled power management, improving cold-start reliability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NOR gate applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC1G02DBVR | TTL-compatible input thresholds (VIH = 2.0 V @ 3.3 V); slightly higher ICC (max 10 µA vs. 40 µA). | Preferred in legacy 3.3 V LVTTL systems where VIH/VIL margins differ; not AEC-Q100 qualified. | Select when interfacing with older FPGA I/O banks or non-automotive industrial controllers requiring LVTTL compatibility. |
| NC7SZ02P5X | Same SC-70-5 (SOT-353) footprint but rated only to +85 °C; no IOFF or over-voltage tolerance beyond VCC+0.3 V. | Suitable for commercial-grade consumer electronics; lacks automotive temperature and robustness specs. | Choose for cost-sensitive, non-automotive applications where extended temperature and fault tolerance are unnecessary. |
Compared with SN74LVC1G02DBVR and NC7SZ02P5X, MC74VHC1G02DFT2G-Q uniquely combines AEC-Q100 qualification, 5.5 V over-voltage tolerance, and IOFF in SC-88A-making it the only option for automotive-grade mixed-voltage logic interfacing without redesign.
Availability
MC74VHC1G02DFT2G-Q is available at Aetrix Electronics and suitable for automotive ECU design, industrial sensor interface development, and medical device safety-critical logic requiring stable component supply across long production lifecycles.
Supply support for MC74VHC1G02DFT2G-Q 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
onsemi is a global semiconductor supplier delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.
The MC74VHC1G02DFT2G-Q belongs to the VHC logic family, engineered for high-speed, low-power CMOS interfacing in harsh environments-specifically targeting automotive body electronics and industrial control systems requiring AEC-Q100 compliance.
FAQ
What is the input voltage threshold behavior of MC74VHC1G02DFT2G-Q?
The MC74VHC1G02DFT2G-Q uses CMOS-level input thresholds: VIH = 0.7 × VCC (min) and VIL = 0.3 × VCC (max). At 5.5 V supply, VIH is 3.85 V and VIL is 1.65 V. This ensures compatibility with standard CMOS outputs and distinguishes it from TTL-threshold variants like MC74VHC1GT02. The MC74VHC1G02DFT2G-Q does not accept TTL-level inputs reliably.
Is MC74VHC1G02DFT2G-Q pin-compatible with MC74VHC1GT02DFT2G?
No, MC74VHC1G02DFT2G-Q and MC74VHC1GT02DFT2G share the same SC-88A package and pinout but differ in input threshold specification-CMOS vs. TTL. Swapping them may cause logic errors in systems relying on precise VIH/VIL margins. The MC74VHC1G02DFT2G-Q must be used where CMOS-compatible thresholds are required.
Does MC74VHC1G02DFT2G-Q support hot insertion or live backplane connection?
Yes, MC74VHC1G02DFT2G-Q supports hot insertion due to its over-voltage tolerant inputs/outputs (up to 5.5 V regardless of VCC) and IOFF functionality. When VCC = 0 V, output leakage remains ≤10 µA, preventing back-driving of powered systems. This makes MC74VHC1G02DFT2G-Q suitable for modular automotive subassemblies and field-replaceable industrial modules.
What is the maximum capacitive load MC74VHC1G02DFT2G-Q can drive at 5 V?
MC74VHC1G02DFT2G-Q is characterized for CL = 15 pF and CL = 50 pF loads in AC specifications. At 5 V, tPLH/tPHL is 3.5 ns (typ) for 15 pF and 4.5 ns (typ) for 50 pF. Driving >50 pF may increase propagation delay and reduce noise margin; for heavier loads, buffer stages or lower-capacitance routing should be used. The MC74VHC1G02DFT2G-Q is not intended for transmission-line driving.
How does the -Q suffix affect the reliability and testing of MC74VHC1G02DFT2G-Q?
The -Q suffix on MC74VHC1G02DFT2G-Q indicates AEC-Q100 Grade 1 qualification (−40 °C to +125 °C), PPAP capability, and dedicated automotive process controls-including enhanced wafer-level testing, lot traceability, and failure analysis protocols. It also mandates stricter change notification and site-specific quality audits. These requirements ensure MC74VHC1G02DFT2G-Q meets automotive functional safety readiness for ASIL-B supporting roles.
MC74VHC1G02DFT2G-Q Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- 74VHC
- Package/Case:
- 5-TSSOP, SC-70-5, SOT-353
- 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:
- -55°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-88A (SC-70-5/SOT-353)
MC74VHC1G02DFT2G-Q FAQ
1.How can I place an order for MC74VHC1G02DFT2G-Q through Aetrix?
Please submit a Request for Quotation (RFQ) for MC74VHC1G02DFT2G-Q 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 MC74VHC1G02DFT2G-Q reliable?
The price and inventory of MC74VHC1G02DFT2G-Q are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC74VHC1G02DFT2G-Q is usually 5 days.
3.What payment methods are accepted for MC74VHC1G02DFT2G-Q?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC74VHC1G02DFT2G-Q transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC74VHC1G02DFT2G-Q?
MC74VHC1G02DFT2G-Q orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC74VHC1G02DFT2G-Q 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 MC74VHC1G02DFT2G-Q?
For technical support, including MC74VHC1G02DFT2G-Q datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC74VHC1G02DFT2G-Q requirements.
6.How does Aetrix verify that MC74VHC1G02DFT2G-Q is sourced from the original manufacturer or authorized distributors?
All MC74VHC1G02DFT2G-Q 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 MC74VHC1G02DFT2G-Q meets industry standards.
7.What is the process for return or replacement of MC74VHC1G02DFT2G-Q?
All MC74VHC1G02DFT2G-Q units undergo pre-shipment inspection (PSI). If there is an issue with MC74VHC1G02DFT2G-Q, 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 MC74VHC1G02DFT2G-Q part is unused and in its original packaging.
Return procedure for MC74VHC1G02DFT2G-Q:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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