AT24C02 Two Wire Serial EEPROM: Pinout, Equivalent and Datasheet

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Published: 23 April 2022 | Last Updated: 23 April 2022

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AT24C02-10PC

AT24C02-10PC

Microchip Technology

Memory IC AT24C02

Purchase Guide

Memory IC AT24C02

The Microchip AT24C02 is a 2 kb serial EEPROM that communicates with the host controller using an I²C (2-wire) serial bus interface. It can retain DATA for at least 100 years with more than 1 million of erase and write cycles. Furthermore, Huge range of Semiconductors, Capacitors, Resistors and IcS in stock. Welcome RFQ.

Microchip's technical team shares a high level, industry view of EEPROM: What it is; Why it sells; when to choose it; when not to choose it.

What Is EEPROM?

AT24C02 Pinout

The following figure is the diagram of AT24C02 Pinout.

Pinout.png

Pinout


             Pin Number                    Pin Name                                               Description
1A0Address Input A0
2A1Address Input A1
3A2Address Input A2
4GNDGND
5SDASerial DATA (I2C)
6SCLSerial CLOCK Input (I2C)
7WPWrite Protect
8VCCPower Supply

AT24C02 Pinout Configuration


AT24C02 CAD Model

The followings are AT24C02 Footprint and 3D Model.

Footprint.png

Footprint


3D Model.png

3D Model


AT24C02 Description

The Microchip AT24C02 is a 2 kb serial EEPROM that communicates with the host controller using an I²C (2-wire) serial bus interface. It can retain DATA for at least 100 years with more than 1 million of erase and write cycles. The low power and low voltage features make this EEPROM work into many commercial and consumer grade products. The read current is 0.4 mA typically with a 1mA of maximum. It requires 6uA of maximum current during standby condition.

The AT24C02 provides 2048 bits of serial electrically erasable and programmable read-only memory (EEPROM) organized as 256 words of 8 bits each. The device is optimized for use in many industrial and commercial applications where low-power and low-voltage operation are essential. The AT24C02 is available in space-saving 8-pin PDIP, 8-lead TSSOP and 8-lead JEDEC SOIC packages and is accessed via a 2-wire serial interface. In addition, the entire family is available in 5.0V (4.5V to 5.5V) versions.

The AT24C0 series has 5 chips in its name with different specification named 1A/02/04/08A/16A that provides 1024/2048/4096/8192/16384 bits of serial electrically erasable and programmable read-only memory (EEPROM) organized as 128/256/512/1024/2048 words of 8 bits each. It is an essential device that can be used in many industrial and commercial applications in low-power and low-voltage domains. The IC supports upto 8 devices in its bus and can retain the data upto 100 years. The communication is done using the I²C protocol.

This article will introduce AT24C02 systematically from its features, pinout to its specifications, applications, also including AT24C02 datasheet and so much more.


AT24C02 Features

● Low-voltage and Standard-voltage Operation

   ◆ 5.0 (VCC = 4.5V to 5.5V)

● Internally Organized 256 x 8 (2K)

● 2-wire Serial Interface

● Schmitt Trigger, Filtered Inputs for Noise Suppression

● Bi-directional Data Transfer Protocol

● 100 kHz (1.8V, 2.5V, 2.7V) and 400 kHz (5V) Compatibility

● Write Protect Pin for Hardware Data Protection

● 8-byte Page (2K) Write Modes

● Partial Page Writes are Allowed

● Self-timed Write Cycle (10 ms max)

● High-reliability

   ◆ Endurance: 1 Million Write Cycles

   ◆ Data Retention: 100 Years

● Automotive Grade and Extended Temperature Devices Available

● 8-lead JEDEC SOIC, 8-pin PDIP and 8-lead TSSOP Packages


Specifications

Microchip Technology AT24C02-10PC technical specifications, attributes, parameters and parts with similar specifications to Microchip Technology AT24C02-10PC.
  • Type
    Parameter
  • Mounting Type

    The "Mounting Type" in electronic components refers to the method used to attach or connect a component to a circuit board or other substrate, such as through-hole, surface-mount, or panel mount.

    Through Hole
  • Package / Case

    refers to the protective housing that encases an electronic component, providing mechanical support, electrical connections, and thermal management.

    8-DIP (0.300, 7.62mm)
  • Supplier Device Package

    The parameter "Supplier Device Package" in electronic components refers to the physical packaging or housing of the component as provided by the supplier. It specifies the form factor, dimensions, and layout of the component, which are crucial for compatibility and integration into electronic circuits and systems. The supplier device package information typically includes details such as the package type (e.g., DIP, SOP, QFN), number of pins, pitch, and overall size, allowing engineers and designers to select the appropriate component for their specific application requirements. Understanding the supplier device package is essential for proper component selection, placement, and soldering during the manufacturing process to ensure optimal performance and reliability of the electronic system.

    8-PDIP
  • Memory Types
    Non-Volatile
  • Operating Temperature

    The operating temperature is the range of ambient temperature within which a power supply, or any other electrical equipment, operate in. This ranges from a minimum operating temperature, to a peak or maximum operating temperature, outside which, the power supply may fail.

    0°C~70°C TA
  • Packaging

    Semiconductor package is a carrier / shell used to contain and cover one or more semiconductor components or integrated circuits. The material of the shell can be metal, plastic, glass or ceramic.

    Tube
  • Published
    2001
  • Part Status

    Parts can have many statuses as they progress through the configuration, analysis, review, and approval stages.

    Obsolete
  • Moisture Sensitivity Level (MSL)

    Moisture Sensitivity Level (MSL) is a standardized rating that indicates the susceptibility of electronic components, particularly semiconductors, to moisture-induced damage during storage and the soldering process, defining the allowable exposure time to ambient conditions before they require special handling or baking to prevent failures

    Not Applicable
  • Voltage - Supply

    Voltage - Supply refers to the range of voltage levels that an electronic component or circuit is designed to operate with. It indicates the minimum and maximum supply voltage that can be applied for the device to function properly. Providing supply voltages outside this range can lead to malfunction, damage, or reduced performance. This parameter is critical for ensuring compatibility between different components in a circuit.

    4.5V~5.5V
  • Base Part Number

    The "Base Part Number" (BPN) in electronic components serves a similar purpose to the "Base Product Number." It refers to the primary identifier for a component that captures the essential characteristics shared by a group of similar components. The BPN provides a fundamental way to reference a family or series of components without specifying all the variations and specific details.

    AT24C02
  • Memory Size

    The memory capacity is the amount of data a device can store at any given time in its memory.

    2Kb 256 x 8
  • Clock Frequency

    Clock frequency, also known as clock speed, refers to the rate at which a processor or electronic component can execute instructions. It is measured in hertz (Hz) and represents the number of cycles per second that the component can perform. A higher clock frequency typically indicates a faster processing speed and better performance. However, it is important to note that other factors such as architecture, efficiency, and workload also play a significant role in determining the overall performance of a component. In summary, clock frequency is a crucial parameter that influences the speed and efficiency of electronic components in processing data and executing tasks.

    400kHz
  • Access Time

    Access time in electronic components refers to the amount of time it takes for a system to retrieve data from memory or storage once a request has been made. It is typically measured in nanoseconds or microseconds and indicates the speed at which data can be accessed. Lower access time values signify faster performance, allowing for more efficient processing in computing systems. Access time is a critical parameter in determining the overall responsiveness of electronic devices, particularly in applications requiring quick data retrieval.

    900ns
  • Memory Format

    Memory Format in electronic components refers to the specific organization and structure of data storage within a memory device. It defines how data is stored, accessed, and managed within the memory module. Different memory formats include RAM (Random Access Memory), ROM (Read-Only Memory), and various types of flash memory. The memory format determines the speed, capacity, and functionality of the memory device, and it is crucial for compatibility with other components in a system. Understanding the memory format is essential for selecting the right memory module for a particular application or device.

    EEPROM
  • Memory Interface

    An external memory interface is a bus protocol for communication from an integrated circuit, such as a microprocessor, to an external memory device located on a circuit board.

    I2C
  • Write Cycle Time - Word, Page

    Write Cycle Time - Word, Page refers to the duration required to write data to a specific memory cell or a page of memory in electronic components, particularly in non-volatile memories like Flash or EEPROM. It indicates the time taken to complete a writing operation for a single word or an entire page of data. This parameter is crucial for determining the performance and speed of memory devices in applications where quick data storage is essential. It impacts the overall efficiency in data handling, affecting both read and write speeds in memory-related operations.

    5ms
  • RoHS Status

    RoHS means “Restriction of Certain Hazardous Substances” in the “Hazardous Substances Directive” in electrical and electronic equipment.

    Non-RoHS Compliant
0 Similar Products Remaining

AT24C02 Functional Block Diagram

The following is the Block Diagram of AT24C02.

Block Diagram.png

Block Diagram


AT24C02 Alternative ICs

Alternative products for AT24C02 EEPROM are listed below:

● DS2431+ one wire based EEPROM

● 24LCxxx based EEPROM

● AT28C64B 64 Kbit EEPROM


AT24C02 Equivalent

            Model number                      Manufacturer                                     Description
M24C02-BN3/GSTMicroelectronics256X8 I2C/2-WIRE SERIAL EEPROM, PDIP8, PLASTIC, DIP-8
AT24C02A-10PIAtmel CorporationEEPROM, 256X8, Serial, CMOS, PDIP8, 0.300 INCH, PLASTIC, DIP-8
M24C02-BN3TP/GSTMicroelectronics256X8 I2C/2-WIRE SERIAL EEPROM, PDIP8, LEAD FREE, PLASTIC, DIP-8
M24C02-BN3TSTMicroelectronics256X8 I2C/2-WIRE SERIAL EEPROM, PDIP8, PLASTIC, DIP-8
M24C02-BN3TPSTMicroelectronics256X8 I2C/2-WIRE SERIAL EEPROM, PDIP8, LEAD FREE, PLASTIC, DIP-8
AT24C02-10PA-5.0CAtmel CorporationEEPROM, 256X8, Serial, CMOS, PDIP8, 0.300 INCH, PLASTIC, MS-001BA, DIP-8
IS24C02F-PIntegrated Silicon Solution IncEEPROM, 256X8, Serial, CMOS, PDIP8, 0.300 INCH, PLASTIC, DIP-8
IS24C02-PIntegrated Silicon Solution IncEEPROM, 256X8, Serial, CMOS, PDIP8, 0.300 INCH, PLASTIC, DIP-8
M24C02-BN3TG/GSTMicroelectronics256X8 I2C/2-WIRE SERIAL EEPROM, PDIP8, LEAD FREE, PLASTIC, DIP-8
CAT24C02PICatalyst SemiconductorEEPROM, 256X8, Serial, CMOS, PDIP8, 0.300 INCH, PLASTIC, DIP-8


How does the AT24C02 EEPROM work?

AT24C02 EEPROM works on start-stop conditions. The EEPROM gets ready to read or write when both the clock line and the data line change from high to low state. The EEPROM acquires the peripheral device address, the byte address, and the information which is to be stored. After the transmission, the operation is terminated. This is determined by the stop condition i.e both the lines of the I2C interface transits from low to high state.


AT24C02 Applications

● Data retention

● Consumer grade product

● Commercial grade product

● Communication systems

● Automobiles

● Consumer electronics

● Industrial applications

● Testing devices


AT24C02 Package

The following diagrams show the AT24C02 Package.

View A.png

View A


View B.png

View B


View C.png

View C


AT24C02 Manufacturer

Microchip Technology Inc. is a leading provider of microcontroller and analog semiconductors, providing low-risk product development, lower total system cost and faster time to market for thousands of diverse customer applications worldwide. Headquartered in Chandler, Arizona, Microchip offers outstanding technical support along with dependable delivery and quality.


Datasheet PDF

Download datasheets and manufacturer documentation for Microchip Technology AT24C02-10PC.
Frequently Asked Questions

How many pins of AT24C02-10PC?

8 Pins.

What’s the operating temperature of AT24C02-10PC?

0°C~70°C TA.

What is the essential property of the AT24C02?

The Microchip AT24C02 is a 2 kb serial EEPROM that communicates with the host controller using an I²C (2-wire) serial bus interface. It can retain DATA for at least 100 years with more than 1 million of erase and write cycles.
AT24C02-10PC

Microchip Technology

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