AT24C256

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AT24C256

EEPROM

  • Manufacturer
  • Mfr. Part #AT24C256
  • Package
  • Datasheet
  • In Stock26656

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Specifications

Overview

Description

The AT24C256 is a 256Kb (32K x 8) EEPROM (Electrically Erasable Programmable Read-Only Memory) from Microchip Technology, designed for non-volatile data storage. It operates over an I2C interface, allowing multiple devices to communicate on a two-wire bus, making it suitable for various applications in consumer electronics, automotive, and industrial systems.
Key features include a supply voltage range of 1.8V to 5.5V, a maximum clock frequency of 1MHz, and support for both 1-byte and multi-byte write operations. The device has a page write capability of 16 bytes, allowing efficient data storage and retrieval.
The AT24C256 also includes built-in write protection features and supports up to 2 million write/erase cycles, ensuring durability and reliability over time. With its compact size and versatile functionality, it is ideal for applications requiring persistent storage, such as configuration settings, sensor data, and calibration information.

Package

The AT24C256 is available in various package types, including the 8-lead SOIC, 8-lead TSSOP, and 8-lead PDIP. These packages cater to different applications and space requirements in electronic designs.

Pinout

The AT24C256 is an I2C-compatible EEPROM with a total of 8 pins. The pin configuration and their functions are as follows:
1. VCC (Pin 1): Power supply, typically +2.7V to +5.5V.
2. GND (Pin 2): Ground reference.
3. SDA (Pin 3): Serial Data Input/Output, used for data transfer.
4. SCL (Pin 4): Serial Clock Input, controls the timing of data transfer.
5. A0 (Pin 5): Device address input, used for selecting the device (can be tied to GND or VCC).
6. A1 (Pin 6): Device address input, used for selecting the device (can be tied to GND or VCC).
7. A2 (Pin 7): Device address input, used for selecting the device (can be tied to GND or VCC).
8. WP (Pin 8): Write Protect, when connected to VCC, prevents write operations to the memory.
This configuration allows for multiple devices to be connected on the same I2C bus, with the address pins enabling up to eight devices on the same bus.

Manufacturer

The AT24C256 is manufactured by Microchip Technology Inc., a leading semiconductor company. Founded in 1989, Microchip specializes in designing and manufacturing microcontrollers, memory, analog, and interface products. The company is recognized for providing a wide range of integrated circuits (ICs) and development tools for embedded systems, catering to various industries including automotive, industrial, consumer electronics, and telecommunications. Microchip is known for its focus on innovation, quality, and customer support, making it a prominent player in the semiconductor market.

Application

The AT24C256 is a 256Kb EEPROM memory device used in various applications, including:
1. Data Storage: Non-volatile data storage for configuration settings and parameters.
2. Microcontroller Interfaces: Used with microcontrollers for expanded memory.
3. Consumer Electronics: In devices like TVs, cameras, and home appliances for storing user preferences.
4. Industrial Automation: For storing calibration data and operational settings.
5. Automotive Applications: In electronic control units for storing diagnostic data and configurations.

Equivalent

The AT24C256 is a 256 Kbit I2C EEPROM. Equivalent products include:
1. 24LC256 - Microchip
2. M24C256 - STMicroelectronics
3. CAT24C256 - ON Semiconductor
4. BR24G256 - Rohm Semiconductor
These options offer similar specifications, including memory size, I2C interface compatibility, and operating voltage ranges. Always check the specific datasheets for detailed electrical characteristics and pin configurations to ensure compatibility.

Shipping

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Shipping Fee Reference (DHL/FedEx):

DHL: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 2-5 business days.

FedEx: Shipping cost ranges from $25-$40 (0.5kg), with an estimated delivery time of 3-7 business days.

UPS: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 3-7 business days.

TNT: Shipping cost ranges from $25-$65 (0.5kg), with an estimated delivery time of 3-7 business days.

EMS: Shipping cost ranges from $30-$50 (0.5kg), with an estimated delivery time of 7-15 business days.

Registered Air Mail: Shipping cost is $2-$4 (0.1kg), with an estimated delivery time of 5-20 business days.

Payments

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