0 ratings
Item #:
90385678
AT24C256 24C256 I2C Interface EEPROM Memory Module for arduino
Item #:
90385678
SLE 487
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from US
0 ratings
Write a review
In stock
Imported from USA store
QTY:
Order now and get it around Saturday, September 12
Secured transaction
Ubuy works hard to protect your security and privacy. Our advanced payment security system ensures confidentiality by encrypting your information during transmission using AES (Advanced Encryption Standards) and SSL (Secure Socket Layer) protocols. Your payment details are 100% secure as we do not share your payment details with third party sellers.
Our Top Logistics Partners
Support AT24C256 series chips with all pins leads out and marked for easy integration.
Fast
Shipping
Free
Return*
Secure Packaging
100% Original Products
PCI DSS Compliance
ISO 27001 Certified
Note: Step Down Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.
What Stands Out
High Capacity
The AT24C256 offers 256Kb of memory, allowing for extensive data storage in projects, making it ideal for applications requiring substantial amounts of data retention.
I2C Compatibility
This module features a simple I2C interface, ensuring easy integration with Arduino and other microcontrollers, streamlining development processes and reducing wiring complexity.
Low Power Consumption
Designed for energy efficiency, the AT24C256 operates with minimal power, making it suitable for battery-powered devices where longevity is crucial while maintaining performance.
Product Details
| Brand | PartsNovar |
| Manufacturer | PartsNovar |
| Mfr Part Number | FJGNEWicmz-00248 |
| Item Weight | 0.1 lbs (50 grams) |
Who Should Buy?
-
Developers & Hobbyists
Ideal for developers and hobbyists building projects that require non-volatile data storage with easy integration.
-
Educational Purposes
Suitable for students learning about I2C communication and EEPROM storage in embedded systems.
-
Prototype Testing
Useful for engineers needing to prototype and test designs that rely on data retention between power cycles.
-
High-Speed Applications
Not suitable for applications requiring high-speed data access or real-time performance due to I2C limitations.
Product Description
AT24C256 24C256 I2C Interface EEPROM Memory Module for arduino
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
What is the AT24C256 I2C Interface EEPROM Memory Module used for?
Answer: The AT24C256 EEPROM Memory Module is commonly used for storing small amounts of data in embedded systems, especially with Arduino projects. It provides non-volatile storage, meaning the information is retained even when the power is off. This module is great for applications like data logging, configuration settings, or storing sensor readings, providing flexibility in your projects. -
Question:
How does the I2C interface work with the AT24C256 module?
Answer: The AT24C256 uses the I2C (Inter-Integrated Circuit) protocol, which allows multiple devices to communicate on the same bus using only two wires, SDA for data and SCL for clock signals. This configuration simplifies wiring and enables daisy-chaining of multiple devices, making it ideal for Arduino applications where space and connections are limited. -
Question:
What voltage range does the AT24C256 EEPROM operate at?
Answer: The AT24C256 operates within a voltage range of 1.7V to 5.5V, making it compatible with most microcontrollers including various Arduino boards. This broad voltage range allows for flexibility in project designs, accommodating different power source configurations. Always ensure your module is powered within this range for proper functionality. -
Question:
Can the AT24C256 EEPROM store large data amounts?
Answer: Yes, the AT24C256 can store up to 32 kilobits of data, which translates to 4KB when using 8-bit bytes. While it's suitable for small to medium-sized data storage needs, for extensive databases or large files, consider breaking the data into smaller chunks or using multiple EEPROM modules in parallel for more collective storage. -
Question:
Is the AT24C256 EEPROM module compatible with other microcontrollers?
Answer: Absolutely! While it's widely used with Arduino, the AT24C256 is also compatible with other microcontrollers that support the I2C protocol, such as Raspberry Pi, ESP8266, and PIC microcontrollers. This versatility makes it an essential component for various electronics projects across different platforms. -
Question:
What are common applications of the AT24C256 module?
Answer: Common applications include data logging, storing configuration settings for electronic devices, and maintaining calibration data for sensors. It’s frequently used in projects that require data retention after power loss, such as weather stations, RFID readers, or any custom Arduino-based project where data persistence is crucial. -
Question:
How do I connect the AT24C256 EEPROM to an Arduino?
Answer: To connect the AT24C256 to an Arduino, use the SDA and SCL pins on the Arduino and connect them to the corresponding pins on the EEPROM module. Additionally, ensure power and ground connections are made. Then, you'll use an I2C library in your Arduino code to communicate with the memory module, allowing you to read and write data effectively. -
Question:
Is it necessary to use pull-up resistors with the AT24C256?
Answer: Yes, when using the I2C interface with the AT24C256, it's recommended to add pull-up resistors on the SDA and SCL lines. These resistors help ensure reliable communication by maintaining the lines at a high state. Typically, values between 4.7kΩ and 10kΩ are used, depending on the specific application and pull-up configuration. -
Question:
What are the reading and writing speeds of the AT24C256?
Answer: The AT24C256 supports a maximum I2C clock frequency of up to 400 kHz, which allows for relatively fast read and write operations. While the time taken for a single byte can be as low as a few milliseconds, performance can vary based on the size of the data being written or read, as well as the number of operations performed consecutively. -
Question:
Where can I buy the AT24C256 24C256 I2C Interface EEPROM Memory Module for Arduino in Sierra Leone?
Answer: You can buy the AT24C256 24C256 I2C Interface EEPROM Memory Module for Arduino at Ubuy. They offer a wide range of electronic components, ensuring you can find the exact module you need for your project.
PartsNovar Memory Editorial Review
No editorial reviews found
Customer Reviews & Ratings
1 customers ratings
-
5 Star
100%
-
4 Star
0%
-
3 Star
0%
-
2 Star
0%
-
1 Star
0%
Review this product
Share your thoughts with other customers
Pros
- High storage capacity: 256KB
- Fast I2C interface: 400 kHz
- Low power consumption: 1mA max
- Reliable for data retention
- Easy integration with Arduino
Platform Trust & Buyer Confidence
MA
Mohammad
Verified buyer
“Excellent quality and original too,when ubuy send original things I will appreciate that ,I very satisfied thank you”
23 July 2026 · via Trustpilot
CK
Chitra
Verified buyer
“The order and delivery progress was communicated very well. Package arrived within the estimated time. Products arrived as expected in good condition.”
22-Jul-26 · via Trustpilot
K
kund
Verified buyer
“Good supply of products. Safe payment methods, and shipment worldwide! Genuine products.”
23-Jul-26 · via Trustpilot
OO
Onesi
Verified buyer
“Was my first time buying a product from Ubuy, but I found it so helpful. This is reliable. Gonna place a new order!”
22 July 2026 · via Trustpilot
SJ
SAO JOHN
Verified buyer
“Ubuy is a great online platform to buy stuff. Reliable, fast delivery time and great value for money. I've been using Ubuy online shopping platform for three years now and will continue to do so.”
23 July 2026 · via Trustpilot
Secure Checkout
Global Delivery
Easy Returns
Genuine Products
Product Price History
Important information
- Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
- Not all the products listed on Ubuy are for sale, as Ubuy is a global search engine. Products are subject to export/trade regulations.
SLE 487
Order now and get it around Saturday, September 12
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
QTY:
Secured transaction
PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.
Our Top Logistics Partners
Fastest cross-border delivery
Features & Benefits
- Compatible with AT24C256 series chips.
- Includes a pin power supply and power indicator.
- Features on-board pull-up resistor for I2C communication.
- All pins are clearly marked for straightforward setup.
- Direct jumper settings for address input and write-protect pin.
- Compact PCB size of 36.5 mm x 12 mm for easy integration.
Ubuy Assurance
Experience worry-free shopping with 100% original products, PCI DSS-compliant payment security, ISO 27001-certified data protection, the fastest cross-border delivery, free returns *, and secure packaging on every order.