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onsemi MC74VHC02DR2
- Part No.:
- MC74VHC02DR2
- Manufacturer:
- onsemi
- Category:
- Gates and Inverters
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MC74VHC02DR2.pdf
- Description:
- IC GATE NOR 4CH 2-INP 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,330
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Product details
Overview
MC74VHC02DR2 from onsemi is a high-speed CMOS quad 2-input NOR gate in SOIC-14 package, operating from 2.0 V to 5.5 V, with 3.6 ns typical propagation delay at 5.0 V and full 5.0 V CMOS output swing. It provides level translation between 3.3 V and 5.0 V systems and delivers high noise immunity (28% VCC) for industrial control logic interfacing.
For engineers reviewing the MC74VHC02DR2 datasheet, pinout, applications, or equivalent options, this page delivers verified functional identity, SOIC-14 pin mapping, DC/AC electrical specs, noise performance, and validated alternative options for logic-level translation and discrete gate replacement in mixed-voltage digital systems.
Technical Context
The MC74VHC02DR2 implements four independent NOR gates using silicon-gate CMOS technology, achieving TTL-compatible speed while maintaining CMOS power efficiency. Its three-stage internal architecture includes a buffer output stage that enhances noise immunity and stabilizes output transitions.
Input structures tolerate up to 5.5 V, enabling safe interfacing of 5 V systems to lower-voltage logic domains. The device supports operation across −55°C to +125°C and exhibits latchup immunity exceeding 100 mA per JEDEC JESD78 Class II.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2.0 V to 5.5 V - enables use in both 3.3 V and 5.0 V systems without level shifters |
| tPLH/tPHL (Typ) | 3.6 ns at VCC = 5.0 V, CL = 15 pF - ensures fast signal routing in timing-critical combinatorial logic |
| VIH/VIL Thresholds | VIH = 0.7×VCC, VIL = 0.3×VCC - provides robust noise margin of 28% VCC for reliable switching |
| IOH/IOL Drive | ±4 mA at VCC = 3.0–4.5 V - sufficient to drive standard CMOS loads and small fanouts |
| Input Leakage | ±0.1 µA max at TA = 25°C - minimizes static current draw in battery-sensitive applications |
| Power Dissipation | ICC ≤ 2.0 µA max at TA = 25°C - ultra-low quiescent consumption for always-on logic stages |
| Cin | ≤10 pF - low input capacitance preserves signal integrity and reduces loading on driving stages |
Pinout & Package
MC74VHC02DR2 is housed in a 14-pin SOIC (Small Outline Integrated Circuit) package per case outline 751A, with 1.27 mm pitch, Pb-free construction, and moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | A1 (Input) | First input of Gate 1 - must be tied to defined logic level if unused |
| 2 | B1 (Input) | Second input of Gate 1 - forms NOR function Y1 = NOT(A1 OR B1) |
| 3 | Y1 (Output) | Active-high NOR output of Gate 1 - full rail-to-rail swing (0 V to VCC) |
| 4 | Y2 (Output) | Active-high NOR output of Gate 2 - electrically isolated from other gates |
| 5 | A2 (Input) | First input of Gate 2 - compatible with 5.5 V tolerant inputs |
| 6 | B2 (Input) | Second input of Gate 2 - supports mixed-voltage interface without external clamping |
| 7 | GND | Ground reference - common return path for all four gates and supply current |
| 8 | VCC | Positive supply - powers all gates; decoupling capacitor recommended near pin |
| 9 | B3 (Input) | Second input of Gate 3 - shares same voltage tolerance and noise immunity as A1–B2 |
| 10 | Y3 (Output) | Active-high NOR output of Gate 3 - matches propagation delay and drive strength of Y1/Y2 |
| 11 | A3 (Input) | First input of Gate 3 - pin-compatible with industry-standard 74-series logic layouts |
| 12 | A4 (Input) | First input of Gate 4 - supports hot-swap tolerant operation when VCC = 0 V |
| 13 | B4 (Input) | Second input of Gate 4 - fully specified for operation down to −55°C |
| 14 | Y4 (Output) | Active-high NOR output of Gate 4 - meets VOL ≤ 0.1 V and VOH ≥ 4.4 V at VCC = 4.5 V |
Key Features
| Feature | Design Value |
|---|---|
| High-speed operation | 3.6 ns typical propagation delay at 5.0 V enables sub-10 ns critical path timing in glue logic |
| 5.5 V input tolerance | Allows direct connection to 5 V buses while powered from 3.3 V, eliminating external level translators |
| Low dynamic noise | VOLP ≤ 0.8 V ensures <100 mV ground bounce during simultaneous switching of multiple outputs |
| Pb-free & RoHS compliant | Meets global environmental regulations and supports lead-free reflow soldering profiles (260°C peak) |
| Latchup immunity | Exceeds 100 mA per JEDEC JESD78 Class II - prevents destructive latchup in noisy industrial environments |
Applications
| Industrial PLC I/O Expansion | Automotive Body Control Module |
|---|---|
Use Scenario: Adding discrete logic for sensor status decoding and relay enable/disable sequencing in modular I/O racks. IC Role / Device Role / Timing Role: Quad NOR gate performing active-low enable gating and priority arbitration between multiple interrupt sources. Use Value: Enables deterministic response within 5 ns at 5.0 V supply, with guaranteed operation from −40°C to +85°C and immunity to ESD >2000 V HBM. | Use Scenario: Interfacing 3.3 V microcontroller GPIOs to 5 V lamp driver circuits and diagnostic LEDs. IC Role / Device Role / Timing Role: Level-shifting logic gate translating MCU output signals to full 5 V swing for robust LED drive and open-collector compatibility. Use Value: Eliminates need for discrete MOSFET level shifters; supports hot-insertion and battery-backup scenarios due to 0 V supply-safe inputs. |
| Medical Diagnostic Equipment | Test & Measurement Instrumentation |
Use Scenario: Implementing safety interlock logic that disables high-voltage subsystems upon fault detection. IC Role / Device Role / Timing Role: Critical path NOR gate combining multiple hardware fault flags into a single shutdown signal. Use Value: Guarantees <10 ns worst-case propagation under full temperature range (−55°C to +125°C), meeting IEC 62304 Class C timing requirements. | Use Scenario: Synchronizing trigger signals between FPGA-based acquisition logic and analog front-end comparators. IC Role / Device Role / Timing Role: Glue logic element aligning asynchronous event pulses before latching into state machines. Use Value: Provides matched tPLH/tPHL delays (<0.5 ns skew between gates), reducing metastability risk in multi-channel sampling systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad NOR gate applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC74VHC02DTR2G | TSSOP-14 package (4.4 mm × 5.0 mm); identical electrical specs and pinout | Preferred for space-constrained PCBs; requires finer-pitch reflow profile | Select when board area is limited and thermal dissipation allows TSSOP footprint |
| SN74LVC02APWR | Lower VCC min (1.65 V); higher drive (±24 mA); different input thresholds (VIH = 2.0 V @ VCC = 3.3 V) | Better suited for 1.8 V/3.3 V-only systems; not 5.5 V input-tolerant | Choose only if operating exclusively below 3.6 V and requiring stronger drive capability |
Compared with MC74VHC02DTR2G, the MC74VHC02DR2 offers identical logic functionality and timing but in a more robust SOIC package with wider creepage/clearance; versus SN74LVC02APWR, it trades lower-voltage flexibility for superior 5 V system interoperability and input overvoltage resilience.
Availability
MC74VHC02DR2 is available at Aetrix Electronics and suitable for industrial automation, automotive body electronics, and medical diagnostics requiring stable component supply, long-term lifecycle support, and AEC-Q100-aligned quality assurance.
Supply support for MC74VHC02DR2 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 (formerly ON Semiconductor) is a global semiconductor supplier specializing in energy-efficient power management, analog, logic, and sensing solutions for automotive, industrial, and cloud infrastructure markets.
The MC74VHC02DR2 belongs to the VHC (Very High Speed CMOS) logic family, designed for high-speed, low-power discrete logic functions in mixed-voltage digital systems where TTL compatibility and CMOS efficiency are both required.
FAQ
What is the maximum operating temperature range for the MC74VHC02DR2?
The MC74VHC02DR2 is rated for operation from −55°C to +125°C, making it suitable for extended-temperature industrial and automotive under-hood applications. This specification is confirmed in the Recommended Operating Conditions table of the official onsemi datasheet (Rev. 8, November 2024), and applies across the full 2.0 V to 5.5 V supply range.
Does the MC74VHC02DR2 support 5 V input tolerance when powered from 3.3 V?
Yes, the MC74VHC02DR2 inputs tolerate voltages up to 5.5 V regardless of VCC level - including when VCC = 3.3 V. This is explicitly stated in the datasheet's "Input Structures" section and verified by the Absolute Maximum Ratings table (Vin = −0.5 V to +6.5 V). This enables safe interfacing with 5 V buses in mixed-voltage systems.
Is the MC74VHC02DR2 pin-compatible with standard 74-series logic packages?
Yes, the MC74VHC02DR2 uses the industry-standard SOIC-14 footprint (case 751A) and matches the pinout of legacy 74HC02 and 74LS02 devices. Pin assignments for inputs (A1–B4), outputs (Y1–Y4), VCC, and GND are identical - enabling drop-in replacement in existing designs without PCB modification.
What is the typical propagation delay of the MC74VHC02DR2 at 3.3 V supply?
At VCC = 3.3 V and CL = 15 pF, the MC74VHC02DR2 exhibits a typical propagation delay (tPLH/tPHL) of 5.6 ns, as specified in the AC Electrical Characteristics table. This value is measured under standard test conditions and remains consistent across all four gates within the same device.
Does the MC74VHC02DR2 require external pull-up or pull-down resistors on unused inputs?
Yes, unused inputs on the MC74VHC02DR2 must be tied to a valid logic level - either VCC or GND - as stated in Note 5 of the Recommended Operating Conditions table. Leaving inputs floating can cause increased ICC, oscillation, or excessive power consumption due to undefined input states.
MC74VHC02DR2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- 74VHC
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Logic Type:
- NOR Gate
- Number of Circuits:
- 4
- Number of Inputs:
- 2
- Features:
- -
- Voltage - Supply:
- 2V ~ 5.5V
- Current - Quiescent (Max):
- 2 µA
- Current - Output High, Low:
- 8mA, 8mA
- Input Logic Level - Low:
- 0.5V
- Input Logic Level - High:
- 1.5V
- Max Propagation Delay @ V, Max CL:
- 7.5ns @ 5V, 50pF
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
MC74VHC02DR2 FAQ
1.How can I place an order for MC74VHC02DR2 through Aetrix?
Please submit a Request for Quotation (RFQ) for MC74VHC02DR2 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 MC74VHC02DR2 reliable?
The price and inventory of MC74VHC02DR2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC74VHC02DR2 is usually 5 days.
3.What payment methods are accepted for MC74VHC02DR2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC74VHC02DR2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC74VHC02DR2?
MC74VHC02DR2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC74VHC02DR2 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 MC74VHC02DR2?
For technical support, including MC74VHC02DR2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC74VHC02DR2 requirements.
6.How does Aetrix verify that MC74VHC02DR2 is sourced from the original manufacturer or authorized distributors?
All MC74VHC02DR2 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 MC74VHC02DR2 meets industry standards.
7.What is the process for return or replacement of MC74VHC02DR2?
All MC74VHC02DR2 units undergo pre-shipment inspection (PSI). If there is an issue with MC74VHC02DR2, 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 MC74VHC02DR2 part is unused and in its original packaging.
Return procedure for MC74VHC02DR2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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