AT24C02N-10SU-2.7

Product Overview

Category

AT24C02N-10SU-2.7 belongs to the category of electrically erasable programmable read-only memory (EEPROM) chips.

Use

The AT24C02N-10SU-2.7 chip is primarily used for non-volatile data storage in various electronic devices such as microcontrollers, computers, and consumer electronics.

Characteristics

• Non-volatile: The data stored in the AT24C02N-10SU-2.7 chip remains intact even when power is removed.
• Electrically erasable: The chip allows for easy modification and erasure of stored data.
• Programmable: Users can write and rewrite data to the chip multiple times.
• Low power consumption: The AT24C02N-10SU-2.7 chip operates at a low voltage, making it energy-efficient.
• Small package size: The chip is available in a compact surface mount package.

Package and Quantity

The AT24C02N-10SU-2.7 chip is packaged in a small outline integrated circuit (SOIC) package. It is typically sold in reels or tubes containing a specific quantity, usually ranging from 100 to 1000 units per package.

Specifications

• Memory capacity: 2 kilobits (256 bytes)
• Operating voltage: 2.7V to 5.5V
• Operating temperature range: -40°C to +85°C
• Write cycle endurance: 1 million cycles
• Data retention: 100 years

Pin Configuration

The AT24C02N-10SU-2.7 chip has a total of 8 pins, each serving a specific function:

1. A0: Address input pin 0
2. A1: Address input pin 1
3. A2: Address input pin 2
4. GND: Ground connection
5. SDA: Serial data input/output
6. SCL: Serial clock input
7. WP: Write protect pin
8. VCC: Power supply voltage

Functional Features

• Random access: The AT24C02N-10SU-2.7 chip allows for direct access to any specific memory location, enabling efficient data retrieval.
• I2C interface: The chip utilizes the widely-used I2C (Inter-Integrated Circuit) protocol for communication with other devices.
• Hardware write protection: The WP pin can be used to protect the stored data from accidental modification.
• Page write mode: The chip supports page write operations, allowing multiple bytes of data to be written in a single operation.

Advantages and Disadvantages

Advantages

• Non-volatile storage ensures data integrity even during power loss.
• Easy programmability and erasability facilitate flexible data management.
• Low power consumption extends battery life in portable devices.
• Small package size enables integration into space-constrained designs.

Disadvantages

• Limited memory capacity compared to other EEPROM chips.
• Relatively slower write speeds compared to other non-volatile memory technologies.
• Susceptible to electromagnetic interference due to its small size.

Working Principles

The AT24C02N-10SU-2.7 chip utilizes electrically isolated floating gate transistors to store data. When writing data, an electrical charge is applied to the floating gate, altering its threshold voltage. This change in threshold voltage represents the stored data. During read operations, the threshold voltage is measured to determine the stored information.

Application Field Plans

The AT24C02N-10SU-2.7 chip finds applications in various fields, including: 1. Microcontroller-based systems requiring non-volatile memory storage. 2. Industrial automation for storing configuration data and calibration values. 3. Consumer electronics such as smart TVs, set-top boxes, and digital cameras for storing user preferences and settings. 4. Automotive electronics for storing critical data like mileage, fault codes, and vehicle settings.

Alternative Models

1. AT24C01A: 1 kilobit (128 bytes) capacity version of the AT24C02N-10SU-2.7 chip.
2. AT24C04N: 4 kilobits (512 bytes) capacity version with similar features.
3. AT24C08N: 8 kilobits (1024 bytes) capacity version offering increased storage space.

These alternative models provide different memory capacities to suit specific application requirements while maintaining compatibility with the AT24C02N-10SU-2.7 chip's functionality.

In conclusion, the AT24C02N-10SU-2.7 chip is a versatile EEPROM device that offers non-volatile data storage, easy programmability, and low power consumption. Its compact size and functional features make it suitable for various electronic applications.