AT24C256 I2C Interface EEPROM Memory Module


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SKU: 397097
  1. Chipset : AT24C256.
  2. Operating Temperature: -55°C to 125°C.
  3. Storage Temperature: -65°C to 150°C.
  4. The voltage on Any Pin with respect to the ground: -1.0V to 6.25V.
  5. Maximum Operating Voltage: 6.25V DC.


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Brand: Generic
Category: USB Interface Module
Tags: Memory Interfacing

If you need to do some data storage in Arduino, then using the EEPROM is probably the most simple practices. In actual, Arduino used the ATmega chip itself has a certain EEPROM memory, but only a limited number. Here is the external EEPROM memory module which uses the I2C bus line to connect with Arduino, and with a pluggable chip, insert in this series, so it will easy to expand capacity, basically just need to insert a bigger capacity of EEPROM chip.

The AT24C256 I2C Interface EEPROM Memory Module is based on EEPROM chips of AT24C series, 256K bit capacity, that’s 32k bytes. The EEPROM module communicates with Arduino through the I2C interface. It will be better to use with Arduino-Sensor-Shield-V4.0 and the Arduino-I2C-COM-Cable.

  1. It can be used as a server or client.
  2. Directly plug puzzle board, no soldering required.
  3. Controller: W5100.
  4. This is the latest version of the Ethernet Shield.
  5. This Arduino Ethernet Shield which is based on the Wiznet W5100 Ethernet Chip gives you an easy way to get your Arduino Online.
  6. It is directly supported by Arduino’s official Ethernet Library.
  7. It adds a micro-SD card slot, which can be used to store files for serving over the network.
  8. It’s compatible with the Arduino Duemilanove (168 or 328), Uno as well as Mega (1280/2560) and can be accessed using the SD library.
  9. The Wiznet W5100 provides a network (IP) stack capable of both TCP and UDP.
  10. It supports up to four simultaneous socket connections.
  11. Use the Ethernet library to write sketches that connect to the internet using the shield.

Note : FT24C256A  & AT24C256 on IC chip


  1. Chipset : AT24C256.
  2. 8P chip seat, installation of AT24C256 chip.
  3. Pin-powered on-board power indicator.
  4. I2C communications required pull-up resistor.
  5. All pins are leads and marked address input and direct write-protect pin jumper settings.

Package Includes:

1 x AT24C256 I2C Interface EEPROM Memory Module.

SKU: 397097 Category: Tag:


Maximum Operating Voltage (V)


Output Current (mA)


Operating Temperature (°C)

-55 ~ +125

Storage temperature (°C)

-65 ~ +150

Length (mm):


Width (mm):


Height (mm):


Weight (g):


Shipping Weight 0.01 kg
Shipping Dimensions 5 × 3 × 1 cm
15 Days Warranty

This item is covered with a standard warranty of 15 days from the time of delivery against manufacturing defects only. This warranty is given for the benefit of Robu customers from any kind of manufacturing defects. Replacement will be done against manufacturing defects.

What voids warranty:

If the product is subject to misuse, tampering, static discharge, accident, water or fire damage, use of chemicals & soldered or altered in any way.

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Questions and answers of the customers

    Just wanted to check that can it work if powered v... Read more
  1. 0 votes
    Q Just wanted to check that can it work if powered via 1.8V ? answer now
    Asked by smtsngh7 on September 19, 2022 6:00 am
    A Yes, it will work As the voltage between 1.0V to 6... Read more
  2. What is the operational voltage? can it work at 3.... Read more
  3. 0 votes
    Q What is the operational voltage? can it work at 3.3V answer now
    Asked by smtsngh7 on September 14, 2022 7:57 am
    A Yes, it can work on 3.3V and the operating voltage... Read more
  4. With this Ethernet Shield, your Arduino board can ... Read more
  5. 0 votes
    Q With this Ethernet Shield, your Arduino board can be used to connect to the internet. this line ...... Read more answer now
    Asked by saurav.raj.ash on March 23, 2022 8:17 am
    A Yes, thank you for your information. This is not a... Read more
  6. Are jumper shunts provided with this module, as sh... Read more
  7. 1 vote
    Q Are jumper shunts provided with this module, as shown in the images ? answer now
    Asked by Nik on February 23, 2021 3:54 pm
    A YES
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Country Of Origin: China