24AA256UID-I/SN

Product Overview

Category

The 24AA256UID-I/SN belongs to the category of electrically erasable programmable read-only memory (EEPROM) chips.

Use

This product is primarily used for storing and retrieving data in electronic devices. It provides non-volatile memory storage, allowing information to be retained even when power is removed.

Characteristics

• Electrically erasable: The 24AA256UID-I/SN can be erased and reprogrammed electronically, making it convenient for updating stored data.
• High storage capacity: With a capacity of 256 kilobits (32 kilobytes), this chip offers ample space for data storage.
• Serial interface: It utilizes a serial communication protocol, enabling easy integration into various electronic systems.
• Low power consumption: The chip is designed to operate efficiently with minimal power requirements.
• Small package size: The 24AA256UID-I/SN comes in a compact package, making it suitable for space-constrained applications.

Package and Quantity

This product is packaged in a small outline integrated circuit (SOIC) package. It is typically available in reels or tubes, with varying quantities depending on the supplier's specifications.

Specifications

• Memory capacity: 256 kilobits (32 kilobytes)
• Interface: I2C (Inter-Integrated Circuit)
• Operating voltage: 1.7V to 5.5V
• Operating temperature range: -40°C to +85°C
• Write endurance: 1,000,000 cycles
• Data retention: 200 years

Pin Configuration

The 24AA256UID-I/SN has eight 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. VSS: Ground
6. A0: Address bit 0
7. A1: Address bit 1
8. A2: Address bit 2

Functional Features

• Sequential read and write operations: The chip allows for sequential reading and writing of data, enabling efficient data transfer.
• Hardware write protection: The WP pin can be used to protect the memory from accidental writes, ensuring data integrity.
• Software write protection: The chip supports software-based write protection, allowing specific memory areas to be locked or unlocked as needed.
• Page write buffer: The 24AA256UID-I/SN features a page write buffer that enables faster write operations by storing multiple bytes before programming them into memory.

Advantages and Disadvantages

Advantages

• High storage capacity for data-intensive applications
• Low power consumption, suitable for battery-powered devices
• Compact package size for space-constrained designs
• Support for hardware and software write protection mechanisms

Disadvantages

• Limited write endurance compared to other non-volatile memory technologies
• Relatively slower write speeds compared to some alternative models

Working Principles

The 24AA256UID-I/SN utilizes electrically erasable programmable read-only memory (EEPROM) technology. It stores data in a grid of memory cells, with each cell capable of holding one bit of information. To write data, an electrical charge is applied to the appropriate memory cells, altering their state. Reading data involves detecting the state of each memory cell and interpreting it as binary information.

Detailed Application Field Plans

The 24AA256UID-I/SN finds application in various electronic systems, including but not limited to: - Consumer electronics: Used for storing configuration settings, user preferences, and firmware updates in devices such as smartphones, tablets, and digital cameras. - Automotive: Employed in vehicle electronics for storing critical data like mileage, error codes, and calibration settings. - Industrial automation: Used in programmable logic controllers (PLCs) and other industrial equipment to store process parameters, configuration data, and production logs.

Detailed Alternative Models

1. 24LC256: Similar to the 24AA256UID-I/SN, this chip offers the same storage capacity and interface but lacks the unique UID feature.
2. AT24C256: This alternative model also provides 256 kilobits of memory and an I2C interface, but it may have different pin configurations and package options.

Please note that the above list is not exhaustive, and there may be other alternative models available from different manufacturers.

In conclusion, the 24AA256UID-I/SN is a versatile EEPROM chip with high storage capacity, low power consumption, and various write protection mechanisms. Its compact size and compatibility with serial communication make it suitable for a wide range of applications in consumer electronics, automotive systems, and industrial automation.