24AA256-I/MF

Product Overview

Category

The 24AA256-I/MF 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, sensors, and communication modules.

Characteristics

• Non-volatile: Retains data even when power is disconnected.
• Electrically erasable: Allows for easy modification of stored data.
• High storage capacity: The 24AA256-I/MF has a capacity of 256 kilobits (32 kilobytes).
• Low power consumption: Designed to operate with minimal power requirements.
• Wide operating voltage range: Can function within a voltage range of 1.7V to 5.5V.
• I2C interface: Supports serial communication using the Inter-Integrated Circuit (I2C) protocol.

Package

The 24AA256-I/MF is available in a small surface-mount package, typically measuring 8-pin SOIC (Small Outline Integrated Circuit).

Essence

The essence of the 24AA256-I/MF lies in its ability to provide reliable and non-volatile data storage in a compact and low-power package.

Packaging/Quantity

This product is usually supplied in reels or tubes, with quantities varying depending on the manufacturer and distributor.

Specifications

• Memory Capacity: 256 kilobits (32 kilobytes)
• Operating Voltage Range: 1.7V to 5.5V
• Interface: I2C
• Operating Temperature Range: -40°C to +85°C
• Write Endurance: 1,000,000 cycles
• Data Retention: 200 years

Detailed Pin Configuration

The 24AA256-I/MF has an 8-pin SOIC package with the following pin configuration:

1. VCC: Power supply voltage
2. SDA: Serial data input/output for I2C communication
3. SCL: Serial clock input for I2C communication
4. WP: Write protect pin (optional)
5. A0: Address bit 0 (for device addressing)
6. A1: Address bit 1 (for device addressing)
7. A2: Address bit 2 (for device addressing)
8. GND: Ground

Functional Features

• Random access: Allows reading and writing of specific memory locations.
• Byte-level erasure: Enables modification of individual bytes without affecting others.
• Hardware write protection: The WP pin can be used to prevent accidental writes.
• Sequential read mode: Supports efficient consecutive reading of multiple memory locations.

Advantages and Disadvantages

Advantages

• Non-volatile storage: Data is retained even during power loss.
• Compact size: Suitable for space-constrained applications.
• Low power consumption: Ideal for battery-powered devices.
• High endurance: Can withstand frequent write operations.
• Compatibility: Supports I2C interface, widely used in many systems.

Disadvantages

• Limited storage capacity: May not be sufficient for certain applications requiring larger memory.
• Relatively slower write speed compared to other memory technologies.
• Vulnerable to electromagnetic interference (EMI) due to its small package size.

Working Principles

The 24AA256-I/MF utilizes EEPROM technology, which stores data by trapping electric charges within a floating gate transistor. When data needs to be written, an electrical charge is applied to the gate, modifying the trapped charge and altering the stored information. Reading the data involves detecting the presence or absence of charges within the transistor.

Detailed Application Field Plans

The 24AA256-I/MF finds application in various fields, including but not limited to: - Consumer electronics: Used in smart devices, wearables, and home automation systems. - Automotive: Employed in vehicle control units, infotainment systems, and sensor modules. - Industrial automation: Integrated into programmable logic controllers (PLCs) and industrial sensors. - Medical devices: Utilized for data storage in medical equipment and patient monitoring systems.

Detailed and Complete Alternative Models

• 24LC256: Similar EEPROM chip with the same capacity and I2C interface, offered by Microchip Technology.
• AT24C256: EEPROM chip from Atmel Corporation, providing equivalent functionality and capacity.
• CAT24C256: EEPROM chip manufactured by ON Semiconductor, compatible with I2C communication.

These alternative models offer similar features and can be considered as substitutes for the 24AA256-I/MF.

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