CAT24AA02WI-GT3

Product Overview

Category

The CAT24AA02WI-GT3 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, sensors, and communication modules.

Characteristics

• Non-volatile: The CAT24AA02WI-GT3 retains stored data even when power is removed.
• High endurance: It can withstand a large number of write and erase cycles.
• Low power consumption: The chip operates at low voltage levels, making it energy-efficient.
• Small form factor: The package size is compact, allowing for integration into space-constrained designs.
• Wide temperature range: The chip can operate reliably across a broad temperature spectrum.

Package

The CAT24AA02WI-GT3 is available in a small surface-mount 8-pin SOIC (Small Outline Integrated Circuit) package.

Essence

The essence of the CAT24AA02WI-GT3 lies in its ability to store and retrieve digital information reliably, even in the absence of power.

Packaging/Quantity

The chip is typically supplied in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

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

Detailed Pin Configuration

The CAT24AA02WI-GT3 has the following pin configuration:

| Pin Name | Function | |----------|----------| | VCC | Power supply voltage | | GND | Ground | | SDA | Serial data input/output | | SCL | Serial clock input |

Functional Features

• Random access: The chip allows for direct read and write operations to specific memory locations.
• Byte-level erasure: Individual bytes can be erased and reprogrammed without affecting other data.
• Hardware write protection: Certain memory areas can be write-protected to prevent accidental modification.
• Sequential read mode: Enables efficient retrieval of consecutive memory locations.

Advantages and Disadvantages

Advantages

• Non-volatile storage ensures data integrity even during power outages.
• High endurance allows for frequent updates without compromising reliability.
• Low power consumption prolongs battery life in portable devices.
• Compact package size facilitates integration into space-constrained designs.

Disadvantages

• Limited storage capacity compared to other memory technologies.
• Slower write speeds compared to volatile memory types.
• Relatively higher cost per bit compared to larger memory chips.

Working Principles

The CAT24AA02WI-GT3 utilizes an electrically controlled floating gate to store and retrieve digital information. When a byte is written, electrons are trapped in the floating gate, altering the threshold voltage of the memory cell. This change in voltage represents the stored data. During read operations, the threshold voltage is measured to determine the stored value.

Detailed Application Field Plans

The CAT24AA02WI-GT3 finds applications in various fields, including:

1. Internet of Things (IoT) devices: Used for storing configuration data, device parameters, and firmware updates.
2. Automotive electronics: Employed for storing critical data like calibration values, fault codes, and user preferences.
3. Industrial automation: Utilized for storing machine settings, production data, and event logs.
4. Consumer electronics: Integrated into smart home devices, wearables, and audio/video equipment for data storage purposes.

Detailed and Complete Alternative Models

1. AT24C02: Manufactured by Atmel, this EEPROM chip offers similar specifications and functionality to the CAT24AA02WI-GT3.
2. 24LC02B: Produced by Microchip Technology, this EEPROM chip is compatible with the I2C interface and has a comparable memory capacity.

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