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 MC74HC1G02DBVT1G

Name: MC74HC1G02DBVT1G
Brand: onsemi
SKU: MC74HC1G02DBVT1G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: MC74HC1G02DBVT1G

Manufacturer:: onsemi

Category:: Gates and Inverters

Package:: SC-74A, SOT-753

Datasheet:: MC74HC1G02DBVT1G.pdf

Description:: IC GATE NOR 1CH 2-INP SC74A

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:3,501

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

Product details

Overview

MC74HC1G02DBVT1G from onsemi is a single 2-input NOR gate in SC-74A (SOT-23-5) package, fabricated with silicon gate CMOS technology. It delivers high-speed logic operation (t_PD = 7 ns typ at V_CC = 5 V), ±2 mA symmetrical output drive, and operates across −55 °C to +125 °C for automotive and industrial control signal conditioning.

For engineers reviewing the MC74HC1G02DBVT1G datasheet, pinout, applications, or equivalent options, this page provides verified functional role, validated pin mapping, temperature-rated performance data, and direct alternative options for logic-level translation and discrete gate replacement in space-constrained PCBs.

Technical Context

The MC74HC1G02DBVT1G implements a single-stage CMOS NOR function with buffered output, ensuring high noise immunity and balanced propagation delays (t_PLH = t_PHL). Its internal circuitry uses <100 FETs and supports rail-to-rail input/output swing across 2.0–6.0 V supply range.

It features symmetrical output impedance (I_OH = I_OL = 2 mA), low quiescent current (I_CC ≤ 1 µA max at 25 °C), and AEC-Q100 qualification when ordered with −Q suffix - though MC74HC1G02DBVT1G itself is the standard industrial-grade variant in SC-74A package.

Key Specifications

Parameter	Value and Actual Design Meaning
Logic Function	Single 2-input NOR gate with true output polarity and no internal inversion beyond logic function
Propagation Delay	7 ns typical at V_CC = 5 V, CL = 15 pF - enables reliable timing in sub-100 MHz digital control paths
Supply Voltage Range	2.0 V to 6.0 V - interoperable with 3.3 V and 5 V logic families without level shifters
Output Drive	±2 mA at V_CC = 4.5–6.0 V - sufficient to drive one 74HC input or small capacitive loads (<30 pF)
Operating Temperature	−55 °C to +125 °C - qualified for under-hood automotive modules and industrial PLC I/O stages
Input Leakage	≤1.0 µA max at V_IN = 6.0 V - ensures stable logic state retention in battery-backed or high-impedance nodes
ESD Rating	HBM: 2000 V - meets basic handling robustness for manual assembly and board-level integration

Pinout & Package

MC74HC1G02DBVT1G is housed in SC-74A (SOT-23-5) package: 3.00 mm × 1.50 mm × 0.95 mm body, 0.95 mm pitch, lead-free, RoHS-compliant.

Pin/Terminal	Circuit Role	Design Meaning
1	GND	Ground reference for all internal circuitry and output stage return path
2	B	Second logic input; accepts 0–V_CC CMOS-compatible voltage levels
3	A	Primary logic input; electrically identical to Pin 2, fully interchangeable
4	V_CC	Positive supply rail; must be decoupled locally to suppress switching noise
5	Y	True NOR output; active-low when either A or B is high; drives downstream CMOS inputs directly

Key Features

Feature	Design Value
High-Speed Operation	7 ns typical propagation delay at 5 V enables use in clocked control sequencers and fast enable/disable paths
Low Quiescent Power	≤1 µA max ICC at 25 °C allows deployment in always-on monitoring circuits without significant standby drain
Symmetrical Output Drive	Equal sourcing/sinking capability (2 mA) simplifies interface design with no need for pull-up/pull-down biasing
Wide Supply Range	2.0–6.0 V operation supports mixed-voltage systems and brown-out tolerant designs
High Noise Immunity	Buffered output stage rejects >30% V_CC noise spikes - critical in motor-drive or relay-control proximity layouts

Applications

Industrial Sensor Interface	Automotive Body Control
Use Scenario: Combining two fault signals (e.g., overtemperature and overcurrent) into a single shutdown command for a DC-DC converter. IC Role / Device Role / Timing Role: Logic-level combiner implementing active-low OR (NOR) function to assert system reset when either condition occurs. Use Value: Eliminates need for external diode-OR or microcontroller polling - reduces BOM count and response latency to <10 ns.	Use Scenario: Enabling window lift motor driver only when both door lock status and switch press are valid. IC Role / Device Role / Timing Role: Safety interlock gate ensuring dual-condition activation before power delivery to H-bridge. Use Value: Provides hardware-level fail-safe behavior independent of MCU firmware state or timing jitter.
Portable Equipment Power Sequencing	Legacy System Signal Translation
Use Scenario: Controlling enable line of a low-noise LDO based on battery voltage OK and system wake signal. IC Role / Device Role / Timing Role: Dual-input logic gate synchronizing power-up sequence across multiple voltage domains. Use Value: Ensures clean, glitch-free enable assertion with sub-10 ns delay matching other HC-series timing blocks.	Use Scenario: Adapting 5 V TTL-level interrupt request to 3.3 V microcontroller GPIO with level-compatible logic threshold. IC Role / Device Role / Timing Role: Voltage-tolerant logic translator preserving signal polarity and timing integrity. Use Value: Avoids dedicated level-shifter ICs - leverages native 2–6 V input range and rail-to-rail output swing.

Industrial Sensor Interface

Automotive Body Control

Use Scenario: Combining two fault signals (e.g., overtemperature and overcurrent) into a single shutdown command for a DC-DC converter.

IC Role / Device Role / Timing Role: Logic-level combiner implementing active-low OR (NOR) function to assert system reset when either condition occurs.

Use Value: Eliminates need for external diode-OR or microcontroller polling - reduces BOM count and response latency to <10 ns.

Use Scenario: Enabling window lift motor driver only when both door lock status and switch press are valid.

IC Role / Device Role / Timing Role: Safety interlock gate ensuring dual-condition activation before power delivery to H-bridge.

Use Value: Provides hardware-level fail-safe behavior independent of MCU firmware state or timing jitter.

Portable Equipment Power Sequencing

Legacy System Signal Translation

Use Scenario: Controlling enable line of a low-noise LDO based on battery voltage OK and system wake signal.

IC Role / Device Role / Timing Role: Dual-input logic gate synchronizing power-up sequence across multiple voltage domains.

Use Value: Ensures clean, glitch-free enable assertion with sub-10 ns delay matching other HC-series timing blocks.

Use Scenario: Adapting 5 V TTL-level interrupt request to 3.3 V microcontroller GPIO with level-compatible logic threshold.

IC Role / Device Role / Timing Role: Voltage-tolerant logic translator preserving signal polarity and timing integrity.

Use Value: Avoids dedicated level-shifter ICs - leverages native 2–6 V input range and rail-to-rail output swing.

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 V_CC min (1.65 V), higher speed (4.5 ns typ), but rated only to +85 °C ambient	Not suitable for under-hood or extended-temperature industrial use	Select when operating below 2.0 V or requiring faster edge rates in commercial-temp environments
74AUP1G02GW,125	Ultra-low power (I_CC ≤ 0.9 µA), wider temp range (−40 to +125 °C), but slower (11 ns typ at 3.3 V)	Preferred for battery-powered IoT nodes where nanowatt standby dominates timing needs	Choose for energy-critical applications where 4 ns delay penalty is acceptable for 10× lower static current

Compared with SN74LVC1G02DBVR and 74AUP1G02GW,125, the MC74HC1G02DBVT1G uniquely balances −55 °C to +125 °C operation, 7 ns speed, and proven ruggedness in automotive-adjacent industrial control - making it optimal for thermally demanding, safety-relevant logic functions where reliability trumps marginal speed gain.

Availability

MC74HC1G02DBVT1G is available at Aetrix Electronics and suitable for industrial sensor interfaces, automotive body control modules, portable equipment power sequencing, and legacy system signal translation requiring stable component supply across extended temperature ranges.

Supply support for MC74HC1G02DBVT1G 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 MC74HC1G02DBVT1G belongs to the HC logic family - designed for high-noise-immunity, rail-to-rail CMOS-compatible digital interfacing in cost-sensitive, space-constrained embedded systems.

FAQ

What logic function does the MC74HC1G02DBVT1G implement?

The MC74HC1G02DBVT1G implements a single 2-input NOR gate: output Y is high only when both inputs A and B are low; otherwise Y is low. This matches the standard Boolean expression Y = NOT(A OR B). The device uses true-output architecture with no internal inversion beyond the NOR function, and its output stage is buffered for improved noise rejection and drive capability - confirmed in the functional table and logic symbol on page 1 of the onsemi datasheet.

What package type is used for the MC74HC1G02DBVT1G?

The MC74HC1G02DBVT1G is packaged in SC-74A (also known as SOT-23-5), a 5-pin surface-mount package measuring 3.00 mm × 1.50 mm × 0.95 mm with 0.95 mm lead pitch. This is explicitly stated in the Ordering Information table on page 5 of the datasheet, where "SC−74A" is listed under Packages for MC74HC1G02DBVT1G. The mechanical drawing labeled CASE 318BQ confirms the SC-74A outline and pin 1 orientation (Q4).

Does the MC74HC1G02DBVT1G support 3.3 V operation?

Yes, the MC74HC1G02DBVT1G fully supports 3.3 V operation. Its Recommended Operating Conditions specify V_CC from 2.0 V to 6.0 V, and DC/AC electrical characteristics are guaranteed across that range - including VIH/VIL thresholds and output drive at 3.0–3.6 V. At V_CC = 3.3 V, propagation delay is 8 ns (typ), output drive remains ±2 mA, and input leakage stays ≤1.0 µA, making it interoperable with 3.3 V microcontrollers and FPGAs without level shifting.

Is the MC74HC1G02DBVT1G AEC-Q100 qualified?

No, the MC74HC1G02DBVT1G is not AEC-Q100 qualified. The datasheet states that −Q suffix variants (e.g., MC74HC1G02DBVT1G−Q) are AEC-Q100 qualified and PPAP capable, but the base part number MC74HC1G02DBVT1G carries no −Q suffix and is specified for industrial temperature range (−55 °C to +125 °C) without automotive qualification documentation. Its maximum ratings and operating conditions meet extended industrial requirements, but formal AEC-Q100 test reports apply only to designated −Q parts.

What is the maximum output current rating for the MC74HC1G02DBVT1G?

The MC74HC1G02DBVT1G has a DC output source/sink current rating of ±12.5 mA per output pin (Y), as specified in the Maximum Ratings table on page 2 of the datasheet. However, for guaranteed logic performance and output voltage compliance (VOH ≥ V_CC − 0.1 V, VOL ≤ 0.1 V), the recommended operating output current is ±2 mA - confirmed in the DC Electrical Characteristics table under VOH/VOL test conditions. Exceeding ±2 mA may degrade noise margins or cause excessive voltage drop, especially at higher temperatures.

MC74HC1G02DBVT1G Specifications

Product attributes: Attribute value

Manufacturer:: onsemi

Series:: 74HC

Package/Case:: SC-74A, SOT-753

Packaging:: Tape & Reel (TR)

Product Status:: Active

Logic Type:: NOR Gate

Number of Circuits:: 1

Number of Inputs:: 2

Features:: -

Voltage - Supply:: 2V ~ 6V

Current - Quiescent (Max):: 1 µA

Current - Output High, Low:: 2.6mA, 2.6mA

Input Logic Level - Low:: 0.5V ~ 1.8V

Input Logic Level - High:: 1.5V ~ 4.2V

Max Propagation Delay @ V, Max CL:: 17ns @ 6V, 50pF

Operating Temperature:: -55°C ~ 125°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SC-74A

MC74HC1G02DBVT1G FAQ

1.How can I place an order for MC74HC1G02DBVT1G through Aetrix?

Please submit a Request for Quotation (RFQ) for MC74HC1G02DBVT1G 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 MC74HC1G02DBVT1G reliable?

The price and inventory of MC74HC1G02DBVT1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC74HC1G02DBVT1G is usually 5 days.

3.What payment methods are accepted for MC74HC1G02DBVT1G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC74HC1G02DBVT1G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MC74HC1G02DBVT1G?

MC74HC1G02DBVT1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MC74HC1G02DBVT1G 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 MC74HC1G02DBVT1G?

For technical support, including MC74HC1G02DBVT1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC74HC1G02DBVT1G requirements.

6.How does Aetrix verify that MC74HC1G02DBVT1G is sourced from the original manufacturer or authorized distributors?

All MC74HC1G02DBVT1G 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 MC74HC1G02DBVT1G meets industry standards.

7.What is the process for return or replacement of MC74HC1G02DBVT1G?

All MC74HC1G02DBVT1G units undergo pre-shipment inspection (PSI). If there is an issue with MC74HC1G02DBVT1G, 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 MC74HC1G02DBVT1G part is unused and in its original packaging.

Return procedure for MC74HC1G02DBVT1G:

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…