AT24C02C-MAHM-E

Product Overview

Category

AT24C02C-MAHM-E 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

• Electrically erasable: The stored data can be erased and reprogrammed electronically.
• Non-volatile: The data remains intact even when power is removed.
• High storage capacity: The AT24C02C-MAHM-E has a storage capacity of 2 kilobits (256 bytes).
• Low power consumption: It operates at low voltage and consumes minimal power.
• I2C interface: It uses the I2C protocol for communication with other devices.

Package

The AT24C02C-MAHM-E comes in a small surface-mount package, which makes it suitable for compact electronic devices.

Essence

The essence of this product lies in its ability to provide reliable and non-volatile data storage in a compact form factor.

Packaging/Quantity

The AT24C02C-MAHM-E is typically packaged in reels or tubes, containing a specific quantity of chips per package. The exact packaging and quantity may vary depending on the manufacturer.

Specifications

• Storage Capacity: 2 kilobits (256 bytes)
• Operating Voltage: 1.7V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Data Retention: Up to 100 years
• Write Endurance: 1 million write cycles

Detailed Pin Configuration

The AT24C02C-MAHM-E has a total of 8 pins, each serving a specific function:

1. VCC: Power supply input
2. GND: Ground reference
3. SDA: Serial data input/output for I2C communication
4. SCL: Serial clock input for I2C communication
5. WP: Write Protect pin (optional)
6. A0, A1: Address selection pins for device addressing
7. NC: No connection (reserved for future use)
8. NC: No connection (reserved for future use)

Functional Features

• Random access: Allows reading and writing of specific memory locations.
• Byte-level operations: Enables manipulation of individual bytes within the memory.
• Hardware write protection: The WP pin can be used to protect the memory from accidental writes.
• Sequential read/write: Supports sequential read and write operations for efficient data transfer.

Advantages and Disadvantages

Advantages

• Non-volatile storage: Data remains intact even during power loss.
• Compact form factor: Suitable for space-constrained applications.
• Low power consumption: Helps prolong battery life in portable devices.
• High data retention: Ensures long-term reliability of stored information.

Disadvantages

• Limited storage capacity: May not be suitable for applications requiring large amounts of data storage.
• Relatively slower write speed compared to other memory technologies.
• Vulnerable to electromagnetic interference (EMI) due to its small size.

Working Principles

The AT24C02C-MAHM-E utilizes EEPROM technology, which allows for electrically erasing and reprogramming of data. It consists of a grid of memory cells, each capable of storing one bit of information. These cells are organized into pages, and data can be written or read at the byte level.

During a write operation, the desired data is sent serially through the I2C interface and stored in the appropriate memory location. Reading data involves sending the address of the desired location, after which the data is retrieved and transmitted back through the I2C interface.

Detailed Application Field Plans

The AT24C02C-MAHM-E finds applications in various fields, including:

1. Embedded Systems: Used for storing configuration data, firmware updates, and calibration parameters in microcontrollers.
2. Consumer Electronics: Employed in devices like smart TVs, set-top boxes, and digital cameras for storing user preferences and settings.
3. Automotive Industry: Utilized for storing critical data such as vehicle identification numbers (VINs), mileage, and diagnostic information.
4. Industrial Automation: Integrated into control systems to store process parameters, calibration data, and system configurations.

Detailed and Complete Alternative Models

1. AT24C01A: 1 kilobit (128 bytes) EEPROM chip.
2. AT24C04C: 4 kilobits (512 bytes) EEPROM chip.
3. AT24C08D: 8 kilobits (1024 bytes) EEPROM chip.
4. AT24C16B: 16 kilobits (2048 bytes) EEPROM chip.
5. AT24C32E: 32 kilobits (4096 bytes) EEPROM