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24AA02E48T-I/OT

2Kb I2C EEPROM with EUI-48 MAC, 1MHz, 1.7-5.5V, SOT-23-5

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Manufacturer Part：

24AA02E48T-I/OT

Package：

SOT-23-5 (3.1 x 1.8 x 1.3 mm)

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Description

Product Overview

The 24AA02E48T-I/OT from Microchip Technology is a 2Kb I2C serial EEPROM pre-programmed with a globally unique EUI-48 MAC address in a 5-pin SOT-23 package. Operating from 1.7V to 5.5V with 1MHz clock rate at 2.5V+, it eliminates the need for MAC address programming during production.

Key Specifications

Density 2 Kbit (256 x 8)
Interface I2C (2-wire)
Max Clock Rate 400 kHz @ 1.7V, 1 MHz @ 2.5V+
Supply Voltage 1.7V to 5.5V
Unique Address EUI-48 (48-bit) factory-programmed
Page Size 8 bytes
Write Cycle Time 3 ms typical (5 ms max)
Endurance 1,000,000 write cycles
Data Retention >200 years
Write Protect Half array
Operating Temperature -40 to +85 C
Package SOT-23-5

Features

  • 2Kb EEPROM with EUI-48 MAC address
  • Globally unique 48-bit node address
  • Compatible with EUI-48 and EUI-64
  • 1.7V to 5.5V wide operating voltage
  • 1uA max standby current
  • Schmitt trigger inputs for noise suppression
  • Half array write protection
  • >4000V ESD protection
  • Up to 3 address pins for bus expansion

Applications

  • Network device MAC address provisioning
  • IoT node identification
  • Ethernet interface MAC storage
  • Embedded system device serialization

The 24AA02E48T-I/OT from Microchip Technology is a 2Kb I2C serial EEPROM pre-programmed with a globally unique EUI-48 MAC address in a 5-pin SOT-23 package. The E48 in the part number indicates the factory-programmed EUI-48 node identity, guaranteed globally unique. The I suffix denotes industrial temperature range (-40 to +85C), T indicates tape and reel packaging, and OT denotes the SOT-23-5 package. The device is organized as two 128×8-bit memory blocks: the upper half contains the read-only 48-bit MAC address, while the lower 1Kb is available for general-purpose data storage. The 1uA maximum standby current and 1mA active current make it ideal for battery-powered applications. The EUI-48 MAC address eliminates the need for manufacturers to program unique identifiers during production, reducing assembly time and ensuring no duplicate MAC addresses.

The 24AA02E48 operates through three subsystems: (1) EEPROM Array: 2Kbit of electrically erasable PROM organized as 256×8-bit. The upper half is factory-locked with the EUI-48 MAC address (6 bytes at the top of the address space), permanently read-only. The lower half provides 1Kb of general-purpose EEPROM storage with byte and 8-byte page write capability, 1 million cycle endurance, and 200+ year data retention. (2) I2C Interface: A standard 2-wire I2C interface with Schmitt-trigger filtered inputs. The device supports standard mode (100kHz), fast mode (400kHz at 1.7V), and fast mode plus (1MHz at 2.5V+). The MAC address is accessed through a dedicated I2C slave address separate from the main EEPROM array address. (3) Address Configuration: Up to 3 address pins (A0, A1, A2) allow up to 8 devices on the same I2C bus. In the SOT-23-5 package, the A0 pin is shared with the SCL pin function, allowing 2 devices on the same bus.

Pin Name Type Description
1 A0/SCL I/O Address bit / shared with SCL in SOT-23
2 VSS Power Ground
3 SDA I/O Serial data (bidirectional, open-drain)
4 VCC Power Supply voltage (1.7-5.5V)
5 WP Input Write protect (HIGH=protect upper half)
  • Ethernet device MAC address with factory-programmed EUI-48 eliminating production-line serialization
  • IoT node identification with 2Kb EEPROM for configuration data and globally unique 48-bit ID
  • Network interface card with 1MHz I2C at 3.3V and 1uA standby for always-on availability
  • Embedded system device serialization with read-only MAC address and write-protectable user EEPROM
Model Manufacturer Density Address Notes
24AA02E64T-I/OT Microchip 2Kb EUI-64 64-bit MAC version
24AA025E48T-I/OT Microchip 2Kb EUI-48 16-byte page write
AT24CS01-STUM-T Microchip 1Kb 128-bit SN Smaller, serial number only
24AA02T-I/OT Microchip 2Kb No Without MAC address
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Quality Assurance

Quality is the core foundation of our long-term global cooperation. With over 20 years of experience in the electronic component industry, Materialparts has built a strict and standardized quality management system covering component sourcing, incoming inspection, full-batch testing, packaging and delivery. We are committed to delivering 100% genuine, high-reliability electronic components for industrial control, automotive electronics, consumer electronics and medical device industries, and fully safeguarding your production and R&D projects.

1. Authorized & Genuine Sourcing Promise

All of our electronic components are procured from official authorized distributors and original manufacturers. We strictly reject counterfeits, refurbished parts, disassembled components and gray-market goods. Every product is guaranteed to be brand-new original parts and fully consistent with the original technical parameters. For branded products such as NXP IC series, we maintain complete supply channel documents to realize full product traceability.

2. Strict Full-batch Quality Inspection

We implement 100% full-batch quality control for all goods before shipment. Our professional QC team conducts multi-dimensional tests including appearance inspection, electrical parameter testing, performance verification and packaging check. Each batch of components is attached with complete inspection reports and batch records. We stick to zero-tolerance standards for defective products to ensure every piece of component meets industrial application requirements.

3. Industry Standard Compliance

Our products comply with a variety of international industry quality standards to adapt to high-standard application scenarios:
  • Automotive Electronics: All automotive-grade components pass AEC-Q series certification, featuring excellent stability and durability to adapt to complex vehicle operating environments.
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  • Industrial Control & Consumer Electronics: Products conform to universal international electronic industry standards, suitable for long-term continuous operation of various equipment.

4. Professional Reliability Control

For static-sensitive, moisture-sensitive and precision components such as ICs, PCBs, sensors and connectors, we carry out reliability screening in advance. Combined with standardized ESD anti-static packaging and vacuum moisture-proof packaging, we avoid component damage caused by static electricity, dampness or collision during storage and transportation, and retain the original performance of products.

5. Traceability Management System

We establish a complete product traceability system. Each batch of goods corresponds to independent batch number, sourcing record, inspection record and delivery record. Customers can query the whole lifecycle information of components at any time. This system effectively solves quality risks and facilitates after-sales handling and production quality control for your company.

6. After-sales Quality Guarantee

If any product is confirmed to have non-conformity quality problems due to our reasons after receipt, we provide free return, exchange and supplementary delivery services. Our professional quality team will also conduct root cause analysis to optimize our quality control process. We respond to quality feedback within 24 hours to resolve your worries efficiently.

Contact Us

If you have inquiries about our quality standards, inspection procedures or product certification documents, please feel free to contact us:

 

Email: info@materialparts.com
Tel / WhatsApp: +86 13760382860
Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China

 

Shipping & Payment

Materialparts is a professional global supplier of electronic components with over 20 years of industry experience. We provide one-stop supply of passive components, integrated circuits, as well as parts for industrial control, automotive electronics, consumer electronics and medical devices. Below are the unified shipping and payment policies applicable to all orders, samples and bulk purchases worldwide.

1. Payment Terms

We offer a variety of secure and convenient payment methods to meet diverse business cooperation needs. Details are as follows:
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  • T/T (Bank Wire Transfer): The primary settlement method for bulk orders and a widely used international payment channel.
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  1. Settlement Currency

     

    US Dollar (USD) is the default settlement currency. RMB is available for domestic customers.

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    All transfer fees, intermediary bank charges and other remittance-related expenses shall be borne by the buyer.

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We partner with leading global logistics providers to ensure safe and fast delivery worldwide. Relevant details are listed below:
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  • Economy Logistics: Air freight and sea freight for large-volume cargo
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  1. Order Processing Time
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  • Out-of-stock or sourced items: The delivery lead time will be confirmed separately according to brand and inventory status.
  1. Estimated Transit Time
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  • Air Freight: 7 – 12 working days
  • Sea Freight: 25 – 40 working days for heavy and large bulk cargo
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    Within 24 hours after dispatch, we will send the tracking number, commercial invoice, packing list and other documents to your email or communication account. You may check the shipment status online in real time.

3. General Order Rules & Notes

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    We support flexible minimum order quantities for samples, small-batch and large-batch orders. All sample orders shall comply with the above shipping and payment policies.

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    All electronic components are packed with professional anti-static and shockproof materials. Original factory packaging is available for branded chips and integrated circuits.

4. Customs & Liability Statement

  1. Import Duties & Taxes

     

    All import duties, customs clearance fees and local taxes incurred for international shipments shall be borne by the buyer. We will provide complete customs documents to assist you with clearance procedures.

  2. Handling of Lost or Damaged Goods
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  • We shall not be liable for any losses caused by incorrect delivery address, wrong contact information or the buyer’s refusal to complete customs clearance.

5. Local Pickup in Shenzhen

Local pickup service is available for customers in Shenzhen and surrounding areas:
  • Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong Province, China
  • Business Hours: 09:00 – 18:00, Monday to Friday. Closed on weekends and official public holidays.
  • Notice: Please make an appointment via email or communication tools one day in advance, and present your order information upon pickup.

Contact Information

Email: info@materialparts.com

Tel / WhatsApp: +86 13760382860

Service & Packaging

Materialparts is a professional electronic component supplier based in Shenzhen, China, with over 20 years of global trading experience. We integrate component procurement, quality inspection, technical support, customized packaging, and global delivery services to provide one-stop supply chain solutions. Our business covers industrial control, automotive electronics, consumer electronics, medical devices and other industries. We always adhere to genuine sources, stable supply and considerate after-sales service.

Core Services

1. One-stop Sourcing & BOM Support

We specialize in a full range of passive and active electronic components, including SMD resistors, power resistors, connectors, aviation connectors, LED beads, flexible circuit boards, printed circuit boards, and integrated circuits. Our professional team provides BOM list consolidation, component matching, and alternative model recommendation services. We support sample orders, small-batch trial production, and mass production orders with flexible MOQs to meet diverse procurement needs.

2. Genuine Product Guarantee & Full-process Quality Inspection

All products are sourced from official authorized channels and are 100% original genuine parts. Every batch of goods undergoes strict full-process quality inspection before delivery, with complete batch records and traceability documents provided. Our products comply with AEC-Q standards for automotive electronics and high-reliability specifications for medical devices. We eliminate counterfeits, refurbished parts and defective products from the source to secure your project production.

3. Fast Quotation & Order Processing

Our customer service team responds promptly to inquiries and quotation requests. All in-stock orders will be processed within one working day. We provide stocking reservation services for long-term cooperative customers, effectively solving problems such as component shortages and unstable supply chains.

4. Professional Technical Support

Our senior engineer team provides free technical consultation, model selection guidance and original manufacturer datasheets. We assist customers in solving problems related to product R&D, circuit design and component application, providing reliable technical support for project progress.

5. Sourcing for Special Components

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6. Global Logistics & Document Services

We cooperate with mainstream international logistics providers including DHL, FedEx, UPS and TNT to achieve fast global delivery. We can provide complete export documents such as customs declaration files, commercial invoices and packing lists to ensure smooth customs clearance for international shipments. Local pickup is also available for customers in Shenzhen, China.

Professional Packaging Standards

Electronic components are sensitive to static electricity, collision, moisture and dust. We adopt industry-standard anti-static packaging solutions to fully ensure the integrity of goods during transportation and storage.

1. General Packaging Specifications

  • All components are packed separately to avoid damage caused by friction and collision;
  • Shockproof buffer materials are added for fragile products to ensure transportation safety;
  • Each package is clearly marked with part number, quantity, batch number and specifications for easy inventory counting and management.

2. Classified Professional Packaging

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  • Vacuum Moisture-proof Packaging: Moisture-sensitive components are vacuum-sealed with desiccants to isolate humid air, suitable for ocean transportation and long-term storage.
  • Original Factory Packaging: Integrated circuits of brands such as NXP are delivered with original reels, trays or tubes by default, retaining complete original packaging and adapting to automated SMT production lines.
  • Discrete Device Packaging: Discrete devices such as SMD resistors, power resistors and LEDs are quantitatively and classifiedly packaged with accurate quantity and clear marking.
  • Connector / Aviation Connector Packaging: Hard outer packaging is adopted to prevent pin bending and structural deformation.

3. Custom Packaging Services

We provide value-added services including personalized packaging, custom labeling and re-reeling according to customer requirements, fully matching your production and warehouse management standards.

Contact Information

For service consultation or packaging customization, please feel free to contact us:
Email: info@materialparts.com
Tel / WhatsApp: +86 13760382860
Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China
 

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