24AA64-I/ST

Product Overview

Category

The 24AA64-I/ST belongs to the category of electrically erasable programmable read-only memory (EEPROM) chips.

Use

This product is primarily used for non-volatile data storage in various electronic devices, such as microcontrollers, embedded systems, and consumer electronics.

Characteristics

• Non-volatile: The stored data remains intact even when power is removed.
• Electrically erasable: The data can be erased and reprogrammed electronically.
• High endurance: The chip supports a large number of erase/write cycles.
• Low power consumption: It operates efficiently with minimal power requirements.

Package

The 24AA64-I/ST is available in a small outline transistor (SOT) package, which ensures compactness and ease of integration into different electronic systems.

Essence

The essence of this product lies in its ability to provide reliable and flexible non-volatile memory storage, enabling efficient data management in electronic devices.

Packaging/Quantity

The 24AA64-I/ST is typically packaged in reels, containing a specified quantity of chips. The exact packaging and quantity may vary depending on the manufacturer's specifications.

Specifications

• Memory capacity: 64 kilobits (8 kilobytes)
• Operating voltage: 1.7V to 5.5V
• Operating temperature range: -40°C to +85°C
• Interface: I2C (Inter-Integrated Circuit)
• Write cycle time: 5 ms (maximum)
• Data retention: 200 years (minimum)

Detailed Pin Configuration

The 24AA64-I/ST has a total of 8 pins, each serving a specific function:

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 for hardware protection
5. A0, A1, A2: Address pins for device addressing
6. GND: Ground connection

Functional Features

• Random access: Allows reading and writing of data at any memory location.
• Byte-level operations: Supports individual byte read and write operations.
• Hardware write protection: The WP pin can be used to prevent accidental writes.
• Sequential read mode: Enables efficient retrieval of consecutive memory locations.

Advantages and Disadvantages

Advantages

• Non-volatile storage: Ensures data integrity even during power loss.
• High endurance: Can withstand a large number of erase/write cycles.
• Compact package: Suitable for space-constrained applications.
• Low power consumption: Optimizes energy efficiency in electronic devices.

Disadvantages

• Limited storage capacity: 64 kilobits may not be sufficient for certain applications requiring larger memory sizes.
• Relatively slower write cycle time: The 5 ms maximum write cycle time may impact performance in time-sensitive applications.

Working Principles

The 24AA64-I/ST utilizes EEPROM technology to store data. It consists of an array of memory cells that can be individually addressed and written to or read from using the I2C interface. The data is stored in floating gate transistors, which retain their charge even when power is removed. This allows for non-volatile storage and reliable data retention.

Detailed Application Field Plans

The 24AA64-I/ST finds application in various fields, including:

1. Microcontrollers: Used for storing program code, configuration settings, and calibration data.
2. Embedded systems: Provides non-volatile memory for system parameters, sensor data, and log files.
3. Consumer electronics: Enables storage of user preferences, firmware updates, and device-specific data.

Detailed and Complete Alternative Models

1. 24AA64T-I/OT: Similar to 24AA64-I/ST, but available in a different package (SOT-23) and suitable for surface mount applications.
2. 24LC64-I/P: Offers the same memory capacity and functionality as 24AA64-I/ST but operates at a higher voltage range (2.5V to 5.5V).

(Note: The alternative models mentioned above are just examples and not an exhaustive list.)

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