24AA128-I/ST

Product Overview

Category

The 24AA128-I/ST 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, embedded systems, and consumer electronics.

Characteristics

• Non-volatile: Retains stored data even when power is removed.
• Electrically erasable: Allows for easy modification of stored data.
• Programmable: Can be written and rewritten multiple times.
• High storage capacity: The 24AA128-I/ST has a capacity of 128 kilobits (16 kilobytes).

Package

The 24AA128-I/ST is available in a small outline transistor (SOT) package, which ensures compactness and ease of integration into electronic circuits.

Essence

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

Packaging/Quantity

The 24AA128-I/ST is typically packaged in reels or tubes, with each reel containing a specific quantity of chips. The exact packaging and quantity may vary depending on the manufacturer's specifications.

Specifications

• Memory capacity: 128 kilobits (16 kilobytes)
• Operating voltage: 1.7V to 5.5V
• Operating temperature range: -40°C to +85°C
• Write endurance: Up to 1 million write cycles
• Data retention: Up to 200 years

Detailed Pin Configuration

The 24AA128-I/ST has a total of 8 pins, each serving a specific function:

1. VCC: Power supply input
2. SDA: Serial data input/output
3. SCL: Serial clock input
4. WP: Write protect input
5. A0, A1, A2: Address inputs for device addressing
6. GND: Ground

Functional Features

• I2C interface: The 24AA128-I/ST utilizes the popular I2C (Inter-Integrated Circuit) protocol for communication with other devices.
• Sequential read operation: Allows for efficient retrieval of consecutive data bytes.
• Software write protection: Provides a mechanism to protect stored data from accidental modification.
• Hardware write protection: Supports external write protection using the WP pin.

Advantages and Disadvantages

Advantages

• High storage capacity for EEPROM chips of its class.
• Wide operating voltage range allows compatibility with various systems.
• Reliable and durable, with a long data retention period.
• Compact package size facilitates integration into space-constrained designs.

Disadvantages

• Limited write endurance compared to some other non-volatile memory technologies.
• Relatively slower write and erase operations compared to volatile memory types.

Working Principles

The 24AA128-I/ST operates based on the principles of electrically erasable programmable read-only memory (EEPROM). It uses a combination of transistors and capacitors to store and retrieve data. When data is written, an electrical charge is applied to specific memory cells, altering their state. This stored charge can be later read or erased as needed.

Detailed Application Field Plans

The 24AA128-I/ST finds applications in various fields, including:

1. Microcontrollers: Used for storing program code, configuration settings, and calibration data.
2. Embedded systems: Enables non-volatile storage of critical system parameters and user preferences.
3. Consumer electronics: Utilized for data storage in devices such as smart TVs, set-top boxes, and audio players.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the 24AA128-I/ST include:

1. AT24C256: A higher-capacity EEPROM chip with 256 kilobits (32 kilobytes) of storage.
2. CAT24C04: A lower-capacity EEPROM chip with 4 kilobits (512 bytes) of storage.
3. M24M02: An EEPROM chip with a larger memory capacity of 2 megabits (256 kilobytes).

These alternative models provide options for different storage requirements and system constraints.

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