AT24C256W-10SI-2.7

Product Overview

Category

AT24C256W-10SI-2.7 belongs to the category of electrically erasable programmable read-only memory (EEPROM) chips.

Use

This product is commonly used for non-volatile data storage in various electronic devices, such as microcontrollers, computers, and consumer electronics.

Characteristics

• High storage capacity: The AT24C256W-10SI-2.7 offers a storage capacity of 256 kilobits (32 kilobytes), allowing for ample data storage.
• Low power consumption: It operates at a low voltage range of 2.7V to 5.5V, making it energy-efficient.
• Serial interface: The chip communicates using the I2C (Inter-Integrated Circuit) protocol, enabling easy integration into existing systems.
• Reliable data retention: The EEPROM ensures data integrity for up to 100 years, even in harsh environmental conditions.
• Fast write speed: With a maximum write time of 10 milliseconds, it provides efficient data programming.

Package and Quantity

The AT24C256W-10SI-2.7 is available in a small surface-mount SOIC (Small Outline Integrated Circuit) package. It is typically sold in reels or tubes containing multiple units.

Specifications

• Operating voltage: 2.7V to 5.5V
• Storage capacity: 256 kilobits (32 kilobytes)
• Interface: I2C
• Write time: 10 milliseconds (maximum)
• Data retention: Up to 100 years
• Package type: SOIC

Pin Configuration

The AT24C256W-10SI-2.7 features an 8-pin configuration with the following pin assignments:

| Pin Number | Pin Name | Function | |------------|----------|----------| | 1 | A0 | Device address input bit 0 | | 2 | A1 | Device address input bit 1 | | 3 | A2 | Device address input bit 2 | | 4 | GND | Ground | | 5 | SDA | Serial data input/output | | 6 | SCL | Serial clock input | | 7 | WP | Write protect (optional) | | 8 | VCC | Power supply voltage |

Functional Features

• Random access: The AT24C256W-10SI-2.7 allows for random read and write operations, enabling efficient data retrieval and modification.
• Page write mode: It supports page write operations, allowing multiple bytes to be written in a single programming cycle, enhancing overall performance.
• Software write protection: The chip offers a write protection feature that can be enabled or disabled through the WP pin, preventing accidental data modification.
• Hardware write protection: In addition to software protection, it provides a permanent write protection mechanism by disabling the write operation entirely.

Advantages and Disadvantages

Advantages

• High storage capacity for extensive data storage requirements.
• Low power consumption, making it suitable for battery-powered devices.
• Reliable data retention ensures long-term data integrity.
• Fast write speed enables quick data programming.
• Small package size facilitates space-constrained designs.

Disadvantages

• Limited storage capacity compared to other memory technologies like flash memory.
• Slower write speed compared to some alternative models.
• Requires an external microcontroller or interface circuitry for communication.

Working Principles

The AT24C256W-10SI-2.7 utilizes EEPROM technology, which allows for non-volatile data storage. It consists of a grid of memory cells that can be electrically programmed and erased. The I2C interface facilitates communication between the chip and the controlling device, enabling data transfer and programming.

Detailed Application Field Plans

The AT24C256W-10SI-2.7 finds applications in various fields, including: 1. Embedded systems: Used for storing configuration data, firmware updates, and user settings in microcontroller-based systems. 2. Industrial automation: Employed for data logging, parameter storage, and system configuration in industrial control systems. 3. Consumer electronics: Utilized in devices like smart TVs, set-top boxes, and gaming consoles for storing user preferences, channel lists, and application data. 4. Automotive electronics: Integrated into automotive modules for storing critical data like calibration values, fault codes, and vehicle-specific configurations.

Detailed and Complete Alternative Models

Some alternative models to the AT24C256W-10SI-2.7 include: - AT24C01A: 1 kilobit (128 bytes) EEPROM with similar characteristics but lower storage capacity. - AT24C512C: 512 kilobits (64 kilobytes) EEPROM with higher storage capacity. - AT25080B