24AA02-I/ST

Product Overview

Category

The 24AA02-I/ST 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, embedded systems, and consumer electronics.

Characteristics

• Electrically erasable: The 24AA02-I/ST allows for easy modification of stored data without requiring physical removal.
• Programmable: Users can write and rewrite data to the chip multiple times.
• Non-volatile: The stored data remains intact even when power is disconnected.
• Low power consumption: The chip operates efficiently, minimizing energy usage.
• High reliability: The 24AA02-I/ST ensures data integrity and durability.

Package

The 24AA02-I/ST is available in a small outline transistor (SOT) package, which provides compactness and ease of integration into various electronic circuits.

Essence

The essence of the 24AA02-I/ST lies in its ability to store and retrieve data reliably, making it an essential component for many electronic devices.

Packaging/Quantity

This product is typically packaged in reels or tubes, with each containing a specific quantity of chips. The exact packaging and quantity may vary depending on the supplier.

Specifications

• Memory capacity: 2 kilobits (256 bytes)
• Operating voltage: 1.7V to 5.5V
• Operating temperature range: -40°C to +85°C
• Write endurance: 1 million write cycles
• Data retention: Up to 200 years
• Communication interface: I2C (Inter-Integrated Circuit)

Detailed Pin Configuration

The 24AA02-I/ST has a total of 8 pins, each serving a specific function:

1. VCC: Power supply input
2. SDA: Serial data line for I2C communication
3. SCL: Serial clock line for I2C communication
4. WP: Write-protect pin (optional)
5. A0: Address bit 0 for device addressing
6. A1: Address bit 1 for device addressing
7. GND: Ground connection
8. NC: No connection (unused pin)

Functional Features

• Random access: Allows direct access to any memory location for reading or writing.
• Page write mode: Enables simultaneous programming of multiple bytes within a single write operation, improving efficiency.
• Software write protection: The WP pin can be used to protect the memory from accidental writes.
• Sequential read mode: Facilitates efficient retrieval of consecutive memory locations.

Advantages and Disadvantages

Advantages

• Compact size and easy integration into electronic circuits.
• High reliability and durability.
• Low power consumption.
• Wide operating voltage range.
• Support for I2C communication interface.

Disadvantages

• Limited memory capacity compared to other EEPROM chips.
• Relatively slower write and erase operations compared to some alternative models.

Working Principles

The 24AA02-I/ST utilizes electrically controlled floating gate transistors to store and retrieve data. When writing data, an electrical charge is applied to the floating gate, altering its conductivity and storing the desired information. During read operations, the stored charge is measured, allowing the chip to output the corresponding data.

Detailed Application Field Plans

The 24AA02-I/ST finds applications in various fields, including but not limited to: - Automotive electronics: Used for storing vehicle configuration data, mileage records, and error codes. - Industrial automation: Employed for parameter storage, calibration data, and equipment identification. - Consumer electronics: Utilized in devices such as smart TVs, set-top boxes, and gaming consoles for storing user preferences and settings.

Detailed and Complete Alternative Models

• 24AA01: Similar to the 24AA02-I/ST but with half the memory capacity (1 kilobit).
• 24AA04: Offers double the memory capacity of the 24AA02-I/ST (4 kilobits).
• 24LC02B: An alternative model from a different manufacturer, providing similar functionality and specifications.

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