Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

Home > Products > Integrated Circuits (ICs) > Logic > Gates and Inverters

onsemi MC74VHCT02ADR2

Name: MC74VHCT02ADR2
Brand: onsemi
SKU: MC74VHCT02ADR2
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: MC74VHCT02ADR2

Manufacturer:: onsemi

Category:: Gates and Inverters

Package:: 14-SOIC (0.154", 3.90mm Width)

Datasheet:: MC74VHCT02ADR2.pdf

Description:: IC GATE NOR 4CH 2-INP 14SOIC

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:1,582

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

MC74VHCT02ADR2 from onsemi is a quad 2-input NOR gate logic IC operating at 4.5–5.5 V supply, with propagation delay of 7.5 ns (typ), output drive capability of ±8 mA, and TTL-compatible inputs. It is used in digital control systems requiring fast, noise-immune level translation and discrete logic implementation.

For engineers reviewing the MC74VHCT02ADR2 datasheet, pinout, applications, or equivalent options, key selection factors include its 5 V operation, guaranteed high-speed switching across industrial temperature range (−40°C to +85°C), rail-to-rail CMOS output swing, and input threshold compatibility with standard TTL logic families.

Technical Context

The MC74VHCT02ADR2 implements four independent 2-input NOR gates using advanced silicon-gate CMOS technology. Each gate features buffered outputs, symmetric rise/fall times (typ. 6.5 ns), and input hysteresis for improved noise immunity on slow-rising signals.

It belongs to the VHCT (Very High Speed CMOS–TTL compatible) family, designed specifically to replace bipolar TTL logic while delivering lower power consumption and higher noise margins. Input thresholds are fixed at 0.8 V (V_IL) and 2.0 V (V_IH), ensuring robust interfacing with legacy 74LS and 74F devices without level-shifting circuitry.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage	4.5 V to 5.5 V - ensures compatibility with regulated 5 V rails and tolerance against line ripple.
Propagation Delay	7.5 ns (typ @ V_CC = 5 V, T_A = 25°C) - supports synchronous logic operation up to ~100 MHz clock domains.
Output Drive	±8 mA (I_OH/I_OL) - sufficient to directly drive multiple 74LS inputs or small capacitive loads (<30 pF).
Input Thresholds	V_IL = 0.8 V, V_IH = 2.0 V - guarantees reliable recognition of TTL logic levels without external biasing.
Operating Temperature	−40°C to +85°C - qualified for industrial-grade embedded control and instrumentation applications.
Quiescent Current	2 µA (max @ V_CC = 5.5 V) - enables low-static-power operation in battery-backed or always-on subsystems.

Pinout & Package

MC74VHCT02ADR2 is housed in a 14-pin SOIC (Small Outline Integrated Circuit) package with standard 1.27 mm pitch and JEDEC MS-012AC outline dimensions.

Pin/Terminal	Circuit Role	Design Meaning
1, 2, 4, 5, 8, 9, 11, 12	Input A/B per gate	Dedicated TTL-compatible inputs for each of four NOR gates (G1–G4); no internal pull-up/down.
3, 6, 10, 13	Output Y per gate	CMOS push-pull outputs capable of sourcing/sinking 8 mA; rail-to-rail swing.
7	GND	Logic ground reference; must be connected to system 0 V plane with low-inductance path.
14	V_CC	Positive supply terminal; requires local 0.1 µF ceramic decoupling adjacent to pin.

Key Features

Feature	Design Value
TTL-compatible inputs	Enables direct replacement of 74LS02/74F02 without redesigning input interface networks.
High-speed CMOS performance	Delivers 7.5 ns propagation delay at 5 V-comparable to 74F logic but with 1/10th the static power.
Industrial temperature range	Validated operation from −40°C to +85°C supports deployment in factory automation and outdoor equipment.
Low input capacitance	Typical C_IN = 4 pF minimizes loading on upstream drivers and preserves signal integrity in fan-out >10 configurations.

Applications

Industrial PLC I/O Expansion	Automotive Body Control Module
Use Scenario: Adding discrete logic for status decoding and enable gating in modular I/O racks. IC Role / Device Role / Timing Role: NOR gate performing active-low OR function to combine multiple fault flags into a single interrupt line. Use Value: Eliminates need for microcontroller GPIO polling; reduces firmware complexity and latency by hardware-level signal aggregation.	Use Scenario: Interfacing mechanical switch inputs (door latch, trunk release) with CAN/LIN transceivers. IC Role / Device Role / Timing Role: Level translator and debouncing pre-processor converting noisy switch closures into clean digital signals. Use Value: Prevents false wake-ups and bus errors by rejecting sub-100 ns glitches before they reach communication controllers.
Medical Infusion Pump Logic	Test Equipment Signal Conditioning
Use Scenario: Implementing safety interlock logic between motor enable, occlusion sensor, and door-open detection. IC Role / Device Role / Timing Role: Redundant gate-based combinational logic verifying dual-channel safety conditions before actuation. Use Value: Provides deterministic, fail-safe response time (<15 ns worst-case) independent of software execution flow.	Use Scenario: Converting TTL-level trigger pulses from oscilloscopes or function generators to CMOS-compatible levels. IC Role / Device Role / Timing Role: Input buffer and polarity inverter ensuring precise edge alignment and amplitude compliance. Use Value: Maintains <1 ns skew between channels in multi-signal test fixtures, critical for timing margin validation.

Industrial PLC I/O Expansion

Automotive Body Control Module

Use Scenario: Adding discrete logic for status decoding and enable gating in modular I/O racks.

IC Role / Device Role / Timing Role: NOR gate performing active-low OR function to combine multiple fault flags into a single interrupt line.

Use Value: Eliminates need for microcontroller GPIO polling; reduces firmware complexity and latency by hardware-level signal aggregation.

Use Scenario: Interfacing mechanical switch inputs (door latch, trunk release) with CAN/LIN transceivers.

IC Role / Device Role / Timing Role: Level translator and debouncing pre-processor converting noisy switch closures into clean digital signals.

Use Value: Prevents false wake-ups and bus errors by rejecting sub-100 ns glitches before they reach communication controllers.

Medical Infusion Pump Logic

Test Equipment Signal Conditioning

Use Scenario: Implementing safety interlock logic between motor enable, occlusion sensor, and door-open detection.

IC Role / Device Role / Timing Role: Redundant gate-based combinational logic verifying dual-channel safety conditions before actuation.

Use Value: Provides deterministic, fail-safe response time (<15 ns worst-case) independent of software execution flow.

Use Scenario: Converting TTL-level trigger pulses from oscilloscopes or function generators to CMOS-compatible levels.

IC Role / Device Role / Timing Role: Input buffer and polarity inverter ensuring precise edge alignment and amplitude compliance.

Use Value: Maintains <1 ns skew between channels in multi-signal test fixtures, critical for timing margin validation.

Equivalent & Alternatives

The following parts are listed as comparable options for similar NOR gate logic applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
SN74VHC02DR	Wider supply range (2–5.5 V); slightly slower (8.5 ns typ); no TTL input thresholds.	Suitable for mixed-voltage systems but requires external level-shifting when interfacing with legacy TTL.	Select when operating below 4.5 V or integrating with 3.3 V logic domains.
74LCX02M	Lower V_CC range (2–3.6 V); 5 V tolerant inputs; propagation delay 5.5 ns (typ).	Optimized for 3.3 V systems with 5 V signal ingress; not TTL-compatible without pull-up resistors.	Prefer for portable or low-power designs where 5 V TTL interface is not required.

Compared with SN74VHC02DR and 74LCX02M, the MC74VHCT02ADR2 uniquely delivers guaranteed TTL input compatibility at 5 V with sub-8 ns speed-making it the only drop-in replacement for legacy 74LS02 in industrial control upgrades without layout or BOM changes.

Availability

MC74VHCT02ADR2 is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, automotive body control modules, medical infusion pump logic, and test equipment signal conditioning requiring stable component supply and long-term lifecycle support.

Supply support for MC74VHCT02ADR2 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 leader delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.

The MC74VHCT02ADR2 belongs to the VHCT logic family, engineered to provide pin- and function-compatible CMOS alternatives to legacy TTL devices-enabling seamless migration from bipolar to low-power, high-reliability digital logic in mission-critical systems.

FAQ

What is the maximum operating frequency supported by the MC74VHCT02ADR2?

The MC74VHCT02ADR2 does not specify a maximum clock frequency in its datasheet because it is a combinational logic device-not a sequential element. Its usable toggle rate depends on propagation delay and load capacitance; with typical 15 pF load, it reliably supports signal transitions up to approximately 100 MHz in feedback-free configurations. The MC74VHCT02ADR2 is intended for static logic functions, not oscillator or clock distribution use.

Is the MC74VHCT02ADR2 RoHS compliant and lead-free?

Yes, the MC74VHCT02ADR2 is RoHS compliant and manufactured with lead-free terminations per J-STD-609. The device carries the "Pb-Free" marking on its package surface and meets EU Directive 2011/65/EU requirements. Full material declarations and certificate of compliance are available upon request for the MC74VHCT02ADR2.

Can the MC74VHCT02ADR2 be operated at 3.3 V supply voltage?

No, the MC74VHCT02ADR2 is not specified for operation at 3.3 V. Its absolute minimum supply voltage is 4.5 V, and input thresholds are optimized for TTL compatibility at 5 V. Attempting to power the MC74VHCT02ADR2 at 3.3 V may result in undefined logic states, excessive propagation delay, or failure to recognize valid high-level inputs.

Does the MC74VHCT02ADR2 have built-in ESD protection?

Yes, the MC74VHCT02ADR2 incorporates on-chip ESD protection diodes rated to ≥2 kV HBM (Human Body Model) per JESD22-A114. This provides baseline handling robustness during assembly and board-level testing. For environments with higher ESD stress, external TVS diodes or series current-limiting resistors are recommended alongside proper PCB grounding practices for the MC74VHCT02ADR2.

What is the thermal resistance (θ_JA) of the MC74VHCT02ADR2 in SOIC package?

The junction-to-ambient thermal resistance (θ_JA) for the MC74VHCT02ADR2 in 14-pin SOIC package is 120°C/W under standard JEDEC JESD51-2 conditions (single-layer board, 1 in² copper pad). This value assumes no additional copper pour or thermal vias; actual θ_JA improves significantly with PCB-level thermal enhancements. Thermal derating guidance is provided in the official MC74VHCT02ADR2 datasheet.

MC74VHCT02ADR2 Specifications

Product attributes: Attribute value

Manufacturer:: onsemi

Series:: 74VHCT

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:: 4.5V ~ 5.5V

Current - Quiescent (Max):: 2 µA

Current - Output High, Low:: 8mA, 8mA

Input Logic Level - Low:: 0.8V

Input Logic Level - High:: 2V

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

MC74VHCT02ADR2 FAQ

1.How can I place an order for MC74VHCT02ADR2 through Aetrix?

Please submit a Request for Quotation (RFQ) for MC74VHCT02ADR2 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 MC74VHCT02ADR2 reliable?

The price and inventory of MC74VHCT02ADR2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC74VHCT02ADR2 is usually 5 days.

3.What payment methods are accepted for MC74VHCT02ADR2?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC74VHCT02ADR2 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MC74VHCT02ADR2?

MC74VHCT02ADR2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MC74VHCT02ADR2 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 MC74VHCT02ADR2?

For technical support, including MC74VHCT02ADR2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC74VHCT02ADR2 requirements.

6.How does Aetrix verify that MC74VHCT02ADR2 is sourced from the original manufacturer or authorized distributors?

All MC74VHCT02ADR2 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 MC74VHCT02ADR2 meets industry standards.

7.What is the process for return or replacement of MC74VHCT02ADR2?

All MC74VHCT02ADR2 units undergo pre-shipment inspection (PSI). If there is an issue with MC74VHCT02ADR2, 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 MC74VHCT02ADR2 part is unused and in its original packaging.

Return procedure for MC74VHCT02ADR2:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

Tech Hub

2026-09-09 Counterfeit Electronic Components: How to Detect, Authenticate, and Test Suspect Parts

Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …

2026-09-08 Obsolete Electronic Components: How to Source and Evaluate Replacements

A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.

2026-09-07 TTL vs CMOS Logic Levels: 74HC and 74HCT Compatibility Explained

TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.

2026-09-04 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…

2026-09-02 74HC595 Pinout, Timing, Output Current, and Applications

The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…

2026-08-27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications

Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…