AT24C04B-PU

Product Overview

Category

AT24C04B-PU 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 AT24C04B-PU 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.
• Low power consumption: This chip operates at low power levels, making it suitable for battery-powered devices.
• High reliability: The AT24C04B-PU offers excellent data retention and endurance characteristics.
• I2C interface: It utilizes the widely-used I2C communication protocol for easy integration into existing systems.

Package and Quantity

The AT24C04B-PU is available in an 8-pin DIP (Dual Inline Package) format. Each package contains one chip.

Specifications

• Memory capacity: 4 kilobits (512 bytes)
• Operating voltage: 1.7V to 5.5V
• Operating temperature range: -40°C to +85°C
• Write cycle endurance: 1 million cycles
• Data retention: 100 years

Pin Configuration

The AT24C04B-PU has the following pin configuration:

```

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| | | 1 2 3 4 5 | |_______________| ```

1. A0: Address input pin
2. A1: Address input pin
3. A2: Address input pin
4. GND: Ground connection
5. SDA: Serial data input/output pin
6. SCL: Serial clock input pin
7. WP: Write protect pin (optional)
8. VCC: Power supply voltage

Functional Features

• Random access: The AT24C04B-PU allows random 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 optional write protect pin (WP) can be used to prevent accidental writes to the memory.
• Page write mode: This chip supports page write operations, allowing multiple bytes to be written in a single operation for improved efficiency.

Advantages and Disadvantages

Advantages

• Easy integration: The I2C interface simplifies the integration of the AT24C04B-PU into various systems.
• Low power consumption: It operates at low power levels, making it suitable for battery-powered devices.
• High reliability: The chip offers excellent data retention and endurance characteristics, ensuring long-term reliability.

Disadvantages

• Limited storage capacity: With a capacity of 4 kilobits, the AT24C04B-PU may not be sufficient for applications requiring large amounts of data storage.
• Slower write speed: EEPROM chips generally have slower write speeds compared to other memory technologies.

Working Principles

The AT24C04B-PU utilizes electrically isolated floating gate transistors to store data. When programming or erasing, charge is trapped or released from the floating gate, altering the transistor's behavior and storing the desired data.

Detailed Application Field Plans

The AT24C04B-PU finds applications in various fields, including: 1. Microcontrollers: Used for storing configuration settings, calibration data, and program code. 2. Computers: Employed in BIOS chips for storing system information and firmware updates. 3. Consumer electronics: Utilized in devices like smart TVs, set-top boxes, and digital cameras for storing user preferences, settings, and firmware.

Detailed and Complete Alternative Models

1. AT24C01A-PU: 1 kilobit EEPROM chip with similar characteristics and package.
2. AT24C08B-PU: 8 kilobit EEPROM chip with similar characteristics and package.
3. AT24C16B-PU: 16 kilobit EEPROM chip with similar characteristics and package.

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

In conclusion, the AT24C04B-PU is an electrically erasable programmable read-only memory chip commonly used for non-volatile data storage in various electronic devices. It offers easy integration, low power consumption, and high reliability. However, it has limited storage capacity and slower write speed compared to other memory technologies. The chip finds applications in microcontrollers, computers, and consumer electronics. Alternative models with different memory capacities are available to cater to specific needs.