24LC02BHT-E/OT

Product Overview

Category

The 24LC02BHT-E/OT belongs to the category of electrically erasable programmable read-only memory (EEPROM) chips.

Use

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

Characteristics

• Electrically erasable: The 24LC02BHT-E/OT can be erased and reprogrammed electrically, making it convenient for updating stored data.
• Non-volatile: The chip retains its stored data even when power is removed.
• Low power consumption: It operates at low power levels, making it suitable for battery-powered devices.
• High reliability: The EEPROM technology ensures reliable data storage and retrieval.
• Small form factor: The chip comes in a compact package, allowing for easy integration into electronic circuits.

Package and Quantity

The 24LC02BHT-E/OT is available in a small surface-mount SOT-23 package. It is typically sold in reels or tubes containing multiple units.

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
• Interface: I2C (Inter-Integrated Circuit)

Pin Configuration

The 24LC02BHT-E/OT has a total of 8 pins, which are assigned specific functions:

1. VCC: Power supply input
2. SDA: Serial data input/output for I2C communication
3. SCL: Serial clock input 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: The chip allows for random access to any memory location, enabling efficient data retrieval.
• Byte-level read and write operations: Data can be read from or written to individual bytes within the memory array.
• Hardware write protection: The WP pin can be used to protect the stored data from accidental overwriting.
• Sequential read mode: The chip supports sequential read operations, allowing for faster data retrieval.

Advantages and Disadvantages

Advantages

• Electrically erasable and reprogrammable
• Non-volatile data storage
• Low power consumption
• High reliability
• Compact form factor

Disadvantages

• Limited memory capacity (2 kilobits)
• Slower write speed compared to some other memory technologies

Working Principles

The 24LC02BHT-E/OT utilizes EEPROM technology, which employs a floating-gate transistor structure to store and retrieve data. When data is written, an electric charge is trapped in the floating gate, altering the transistor's behavior. This charge can be removed during the erasing process, allowing the transistor to return to its original state. The stored data can be accessed by applying appropriate voltage levels to the chip's pins.

Application Field Plans

The 24LC02BHT-E/OT finds applications in various fields, including:

1. Embedded systems: Used for storing configuration data, calibration values, and firmware updates in microcontroller-based systems.
2. Automotive electronics: Employed for storing vehicle-specific settings, such as seat positions, audio preferences, and user profiles.
3. Industrial automation: Utilized for storing production parameters, sensor calibration data, and system configuration settings.
4. Consumer electronics: Integrated into devices like smartwatches, fitness trackers, and digital cameras for storing user preferences, activity logs, and media files.

Alternative Models

Several alternative models with similar functionality to the 24LC02BHT-E/OT include:

1. 24LC01B
2. 24LC04B
3. 24LC08B
4. 24LC16B

These models offer varying memory capacities to suit different application requirements.

In conclusion, the 24LC02BHT-E/OT is a versatile EEPROM chip that provides non-volatile data storage in a compact form factor. With its electrically erasable and reprogrammable nature, low power consumption, and high reliability, it finds applications in diverse fields ranging from embedded systems to consumer electronics.