24AA04T-I/ST

Product Overview

Category

The 24AA04T-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 24AA04T-I/ST can be erased and reprogrammed electronically, making it convenient for updating stored data.
• Non-volatile: The stored data remains intact even when power is removed.
• High reliability: This EEPROM chip offers excellent data retention and endurance characteristics.
• Low power consumption: It operates at low voltage levels, minimizing energy consumption.
• Small form factor: The 24AA04T-I/ST comes in a compact package, making it suitable for space-constrained applications.

Package and Quantity

The 24AA04T-I/ST is available in a small outline transistor (SOT-23) package. Each package contains one EEPROM chip.

Specifications

• Memory capacity: 4 kilobits (512 bytes)
• Operating voltage range: 1.7V to 5.5V
• Operating temperature range: -40°C to +85°C
• Write cycle endurance: Up to 1 million write cycles
• Data retention: Up to 200 years
• Communication interface: I2C (two-wire serial interface)

Detailed Pin Configuration

The 24AA04T-I/ST has a total of 6 pins:

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, can be left unconnected)
5. A0: Address selection bit 0
6. GND: Ground reference

Functional Features

• Byte-level read and write operations: The 24AA04T-I/ST allows individual bytes to be read from or written to the memory.
• Sequential read operation: It supports sequential reading of multiple bytes, enabling efficient data retrieval.
• Write protection: The WP pin can be used to protect the stored data from accidental modification.
• Software write protection: The chip provides software-controlled write protection for specific memory areas.

Advantages and Disadvantages

Advantages

• High reliability and endurance
• Low power consumption
• Compact form factor
• Easy integration with I2C interface
• Efficient sequential read operation

Disadvantages

• Limited memory capacity (4 kilobits)
• Relatively higher cost compared to other non-volatile memory options

Working Principles

The 24AA04T-I/ST utilizes electrically controlled floating gate transistors to store and retrieve data. When a byte is written, an electrical charge is trapped in the floating gate, altering the transistor's behavior. This change can be detected during subsequent read operations. The EEPROM's internal circuitry ensures that the stored data remains intact even when power is removed.

Detailed Application Field Plans

The 24AA04T-I/ST finds applications in various fields, including:

1. Microcontrollers: Used for storing configuration settings, calibration data, and firmware updates.
2. Embedded systems: Enables non-volatile storage of critical system parameters and user preferences.
3. Consumer electronics: Utilized for storing user profiles, device settings, and usage statistics.
4. Automotive electronics: Used for storing vehicle-specific data, such as mileage, service history, and security codes.

Detailed and Complete Alternative Models

1. 24LC04B-I/P: Similar EEPROM chip with the same memory capacity and I2C interface, but available in a DIP package.
2. 24FC04A-I/MS: EEPROM chip with the same memory capacity and I2C interface, but offered in a smaller MSOP package.
3. AT24C04N-SH-T: EEPROM chip from a different manufacturer, offering similar specifications and functionality.

(Note: This list is not exhaustive and other alternative models may exist.)

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