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onsemi MC74VHC1G02DTT1G
- Part No.:
- MC74VHC1G02DTT1G
- Manufacturer:
- onsemi
- Category:
- Gates and Inverters
- Package:
- SOT-23-5 Thin, TSOT-23-5
- Datasheet:
-
MC74VHC1G02DTT1G.pdf
- Description:
- IC GATE NOR 1CH 2-INP 5TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:5,016
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Product details
Overview
MC74VHC1G02DTT1G from onsemi is a single 2-input NOR gate logic IC operating from 2.0 V to 5.5 V, delivering 3.5 ns typical propagation delay at 5 V, with CMOS-level input thresholds and over-voltage tolerant inputs/outputs up to 5.5 V - used in level-shifting interfaces between 3 V and 5 V digital subsystems.
For engineers reviewing the MC74VHC1G02DTT1G datasheet, pinout, applications, or equivalent options, key selection criteria include supply voltage range, input threshold compatibility (CMOS), output drive strength (8 mA @ 3.0 V), IOFF partial power-down support, and SC-74A package footprint for space-constrained PCB layouts.
Technical Context
This device implements a standard two-input NOR Boolean function with active-low outputs, featuring input structures rated for 5.5 V regardless of VCC - enabling safe interfacing between mixed-voltage domains. Its IOFF circuitry prevents current backflow when VCC = 0 V, supporting hot-insertion and battery-backup scenarios.
The MC74VHC1G02DTT1G uses advanced high-speed CMOS technology with chip complexity under 100 FETs, ensuring low static power consumption (ICC ≤ 40 µA at 5.5 V) and robust ESD protection (2000 V HBM). It is not tri-state; output is always driven high or low per logic state.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2.0 V to 5.5 V - supports direct integration into both 3.3 V and 5 V logic systems without level translators. |
| tPD (Typ) | 3.5 ns at VCC = 5 V, CL = 15 pF - enables use in high-speed control paths up to ~100 MHz toggle rate. |
| IOH/IOL | ±8 mA at VCC = 3.0 V - sufficient to drive multiple 74LVC inputs or small LED indicators without buffering. |
| Input Thresholds | VIH = 3.15 V, VIL = 1.35 V at VCC = 4.5 V - CMOS-compatible thresholds ensure noise margin > 1.3 V in 4.5 V operation. |
| Over-Voltage Tolerance | Inputs/outputs withstand up to 5.5 V independent of VCC - eliminates need for external clamping diodes in mixed-supply interconnects. |
| IOFF Leakage | ≤10 µA when VCC = 0 V - prevents signal corruption or power leakage during system sleep or partial power-down modes. |
| Operating Temp | −55 °C to +125 °C - qualified for extended industrial and automotive under-hood applications. |
Pinout & Package
MC74VHC1G02DTT1G is packaged in SC-74A (Case 318BQ), a 5-pin, 3.0 mm × 1.5 mm surface-mount package with 0.95 mm height and 0.95 mm lead pitch. Pin 1 is marked with a dot or beveled edge; orientation follows tape-and-reel standard Q4.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | B (Input) | Second logic input; accepts 0–5.5 V regardless of VCC - enables flexible signal routing in voltage-agnostic designs. |
| 2 | A (Input) | Primary logic input; electrically identical to Pin 1; both inputs share same VIH/VIL thresholds and ESD protection. |
| 3 | GND | Ground reference for all internal circuitry and I/O; must be low-impedance connection to avoid noise coupling into logic states. |
| 4 | Y (Output) | NOR output - actively drives high or low; no high-impedance state; compatible with standard CMOS/TTL loads. |
| 5 | VCC | Positive supply rail; powers internal logic and output stage; decoupling capacitor (0.1 µF) recommended within 2 mm. |
Key Features
| Feature | Design Value |
|---|---|
| Wide VCC Range | 2.0 V to 5.5 V operation allows single part to serve across legacy 5 V and modern 3.3 V/2.5 V systems without redesign. |
| Input Over-Voltage Tolerance | 5.5 V-rated inputs eliminate external protection components when interfacing to higher-voltage controllers or sensors. |
| IOFF Partial Power-Down | Blocks current flow from inputs or outputs when VCC = 0 V - critical for hot-swap modules and battery-backed subsystems. |
| Low Propagation Delay | 3.5 ns typical tPD at 5 V enables timing-critical functions such as clock gating, reset synchronization, and fast enable/disable control. |
| AEC-Q100 Qualified Option | MC74VHC1G02DTT1G-Q variant meets AEC-Q100 Grade 1 (−40 °C to +125 °C) for automotive powertrain and body electronics. |
Applications
| Industrial PLC I/O Modules | Automotive Body Control Units |
|---|---|
|
Use Scenario: Isolating and conditioning discrete sensor inputs (e.g., door open/closed, hood latch status) before feeding into microcontroller GPIOs. IC Role / Device Role / Timing Role: NOR gate performs active-low OR logic to combine multiple switch signals into a single interrupt line. Use Value: Over-voltage tolerance allows direct connection to 5 V pull-up networks while powered from 3.3 V MCU rail - no level shifter required. |
Use Scenario: Generating enable/disable control for interior lighting drivers based on ignition state and ambient light sensor output. IC Role / Device Role / Timing Role: NOR gate implements safety interlock logic that deactivates lights if either ignition-off or over-temp condition occurs. Use Value: IOFF functionality prevents backfeed from lighting driver outputs into MCU when main power is cycled - avoids false wakeups. |
| Medical Portable Device Power Sequencing | Consumer IoT Sensor Hub Interface |
|
Use Scenario: Coordinating power-up sequence of analog front-end and BLE radio subsystems using reset signal arbitration. IC Role / Device Role / Timing Role: NOR gate combines POR and firmware-ready signals to generate delayed, synchronized enable pulse for RF section. Use Value: 3.5 ns propagation delay ensures sub-10 ns timing resolution - critical for meeting tight power-rail sequencing windows in battery-powered devices. |
Use Scenario: Aggregating motion, temperature, and humidity sensor alerts into a single wake-up event for ultra-low-power microcontroller sleep mode exit. IC Role / Device Role / Timing Role: NOR gate acts as wired-OR combiner (inverted logic) to assert interrupt when any sensor detects activity. Use Value: CMOS input thresholds and 8 mA drive capability allow direct interface to diverse sensor open-drain outputs without pull-up resistor tuning. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 2-input NOR gate applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC1G02DBVR | Lower VCC min (1.65 V), faster tPD (3.0 ns typ @ 3.3 V), but only rated to 5.5 V absolute max - no over-voltage tolerance above VCC. | Suitable for pure 1.8 V/3.3 V systems; unsuitable where 5 V signals may appear on inputs during fault or hot-swap. | Select when operating exclusively in ≤3.3 V domains and maximum speed is prioritized over mixed-voltage robustness. |
| NC7SZ02P5X | Same SC-70-5 (SC-74A) package, 2.0–5.5 V range, but lacks IOFF and has lower drive (±4 mA @ 3 V); not AEC-Q100 qualified. | Acceptable for cost-sensitive consumer applications with stable power rails and no partial power-down requirements. | Choose for non-automotive, non-industrial designs where IOFF and automotive qualification are unnecessary. |
Compared with SN74LVC1G02DBVR and NC7SZ02P5X, the MC74VHC1G02DTT1G uniquely combines over-voltage tolerant I/O, IOFF, and AEC-Q100 qualification in the SC-74A footprint - making it the only option among the three for robust mixed-voltage industrial or automotive interface tasks.
Availability
MC74VHC1G02DTT1G is available at Aetrix Electronics and suitable for industrial PLC I/O modules, automotive body control units, and medical portable device power sequencing requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MC74VHC1G02DTT1G 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 focused on energy-efficient innovation, delivering silicon solutions for automotive, industrial, cloud, and IoT applications.
The MC74VHC1G02DTT1G belongs to onsemi's VHC logic family - designed for high-speed, low-power, mixed-voltage interoperability in space-constrained embedded control systems.
FAQ
What is the logic function implemented by the MC74VHC1G02DTT1G?
The MC74VHC1G02DTT1G implements a standard two-input NOR Boolean function: Y = NOT(A OR B). When both inputs A and B are low, the output Y is high; otherwise, Y is low. This behavior is confirmed in the Function Table on page 2 of the official datasheet and applies identically across all operating voltages from 2.0 V to 5.5 V.
Does the MC74VHC1G02DTT1G support tri-state output operation?
No, the MC74VHC1G02DTT1G does not support tri-state output. Its output is always actively driven high or low according to the NOR logic function - there is no high-impedance (Hi-Z) state. This is explicitly stated in the datasheet's AC Electrical Characteristics table footnote and confirmed by absence of enable/disable control pins or tri-state specifications in the pinout and functional description.
What package type is used for the MC74VHC1G02DTT1G?
The MC74VHC1G02DTT1G uses the SC-74A package (Case 318BQ), a 5-pin surface-mount outline measuring 3.0 mm × 1.5 mm with 0.95 mm pitch. This is verified in the Ordering Information table (page 7) and Mechanical Case Outline drawing (page 8) of the datasheet, where "DBVT1G" suffix corresponds to SC-74A packaging.
Is the MC74VHC1G02DTT1G suitable for automotive applications?
The base MC74VHC1G02DTT1G is not automotive-qualified, but its -Q variant (e.g., MC74VHC1G02DTT1G-Q) is AEC-Q100 Grade 1 qualified and PPAP capable. The datasheet explicitly lists "-Q Suffix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements; AEC-Q100 Qualified and PPAP Capable" in the Features section on page 1.
What is the maximum input voltage the MC74VHC1G02DTT1G can tolerate when VCC = 3.3 V?
The MC74VHC1G02DTT1G can tolerate input voltages up to 5.5 V regardless of VCC value - including when VCC = 3.3 V. This over-voltage tolerance is specified in the Maximum Ratings table (page 3) under VIN: −0.5 V to +6.5 V, and reinforced in the introductory text stating "inputs provide protection when voltages up to 5.5 V are applied, regardless of the supply voltage."
MC74VHC1G02DTT1G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- 74VHC
- Package/Case:
- SOT-23-5 Thin, TSOT-23-5
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 5-TSOP
MC74VHC1G02DTT1G FAQ
1.How can I place an order for MC74VHC1G02DTT1G through Aetrix?
Please submit a Request for Quotation (RFQ) for MC74VHC1G02DTT1G 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 MC74VHC1G02DTT1G reliable?
The price and inventory of MC74VHC1G02DTT1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC74VHC1G02DTT1G is usually 5 days.
3.What payment methods are accepted for MC74VHC1G02DTT1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC74VHC1G02DTT1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC74VHC1G02DTT1G?
MC74VHC1G02DTT1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC74VHC1G02DTT1G 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 MC74VHC1G02DTT1G?
For technical support, including MC74VHC1G02DTT1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC74VHC1G02DTT1G requirements.
6.How does Aetrix verify that MC74VHC1G02DTT1G is sourced from the original manufacturer or authorized distributors?
All MC74VHC1G02DTT1G 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 MC74VHC1G02DTT1G meets industry standards.
7.What is the process for return or replacement of MC74VHC1G02DTT1G?
All MC74VHC1G02DTT1G units undergo pre-shipment inspection (PSI). If there is an issue with MC74VHC1G02DTT1G, 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 MC74VHC1G02DTT1G part is unused and in its original packaging.
Return procedure for MC74VHC1G02DTT1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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