AT24HC02B-TH-B

Product Overview

Category

AT24HC02B-TH-B belongs to the category of electrically erasable programmable read-only memory (EEPROM) chips.

Use

This product is commonly used for storing and retrieving data in electronic devices. It provides non-volatile memory storage, allowing information to be retained even when power is removed.

Characteristics

• Electrically erasable: The AT24HC02B-TH-B can be erased and reprogrammed electronically, making it convenient for updating stored data.
• High capacity: This chip has a storage capacity of 2 kilobits (256 bytes), providing ample space for various applications.
• Low power consumption: The AT24HC02B-TH-B operates on low power, making it suitable for battery-powered devices.
• Wide operating voltage range: It can function within a voltage range of 1.7V to 5.5V, ensuring compatibility with different systems.

Package

The AT24HC02B-TH-B is available in a small Thin Small Outline Package (TSOP) which facilitates easy integration into electronic circuits.

Essence

This EEPROM chip allows for reliable and efficient data storage, retrieval, and modification in electronic devices.

Packaging/Quantity

The AT24HC02B-TH-B is typically packaged in reels, containing a quantity of 2500 units per reel.

Specifications

• Memory capacity: 2 kilobits (256 bytes)
• Operating voltage: 1.7V to 5.5V
• Interface: I2C (Two-Wire Serial Interface)
• Write endurance: 1 million write cycles
• Data retention: 100 years
• Operating temperature range: -40°C to +85°C

Detailed Pin Configuration

The AT24HC02B-TH-B features 8 pins, each serving a specific function:

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

Functional Features

• Random access: The AT24HC02B-TH-B allows for direct access to any memory location, enabling efficient data retrieval.
• Byte-level read and write operations: It supports individual byte read and write operations, providing flexibility in data manipulation.
• Hardware write protection: The WP pin can be used to protect the stored data from accidental modification.

Advantages and Disadvantages

Advantages

• Electrically erasable and reprogrammable
• High storage capacity
• Low power consumption
• Wide operating voltage range
• Long data retention period
• Compact package size

Disadvantages

• Limited storage capacity compared to other EEPROM chips
• Relatively higher cost per kilobit of storage

Working Principles

The AT24HC02B-TH-B utilizes electrically controlled floating gate transistors to store and retrieve data. When data is written, 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 retrieval of the stored data.

Detailed Application Field Plans

The AT24HC02B-TH-B finds applications in various electronic devices, including but not limited to: - Consumer electronics: TVs, set-top boxes, remote controls - Automotive systems: Infotainment systems, instrument clusters - Industrial equipment: Data loggers, control systems - Medical devices: Patient monitoring systems, diagnostic equipment

Detailed and Complete Alternative Models

1. AT24HC04B-TH-B: This EEPROM chip offers double the storage capacity of the AT24HC02B-TH-B, with 4 kilobits (512 bytes) of memory.
2. AT24HC08B-TH-B: With 8 kilobits (1024 bytes) of memory, this alternative model provides even greater storage capacity for applications requiring more data storage.

These alternative models are compatible with the same package and have similar characteristics to the AT24HC02B-TH-B, offering expanded options for different project requirements.

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