AT45DB021-JI

Product Overview

Category

AT45DB021-JI belongs to the category of flash memory devices.

Use

This product is primarily used for data storage and retrieval in various electronic devices.

Characteristics

• Non-volatile memory: The AT45DB021-JI retains stored data even when power is removed.
• High capacity: With a storage capacity of 2 megabits, it can store a significant amount of data.
• Fast access time: The device offers quick access to stored information, ensuring efficient data retrieval.
• Low power consumption: Designed with power efficiency in mind, it minimizes energy usage.
• Robust package: The AT45DB021-JI is housed in a durable package, protecting it from external damage.
• Small form factor: Its compact size allows for easy integration into different electronic systems.

Package and Quantity

The AT45DB021-JI is available in a standard 8-pin SOIC (Small Outline Integrated Circuit) package. It is typically sold in quantities of 100 or more.

Specifications

• Storage Capacity: 2 megabits (256 kilobytes)
• Interface: Serial Peripheral Interface (SPI)
• Operating Voltage: 2.7V - 3.6V
• Operating Temperature Range: -40°C to +85°C
• Data Retention: Up to 20 years
• Programming Time: 5 milliseconds per byte
• Erase Time: 18 milliseconds per sector

Pin Configuration

The AT45DB021-JI features an 8-pin SOIC package with the following pin configuration:

1. Chip Select (/CS)
2. Output Enable (/OE)
3. Write Protect (/WP)
4. Serial Data Input (SI)
5. Serial Data Output (SO)
6. Serial Clock (SCK)
7. Ground (GND)
8. Power Supply (VCC)

Functional Features

• Page Read and Write: Allows for individual page read and write operations.
• Continuous Read: Enables sequential data retrieval without the need for repeated commands.
• Sector Erase: Supports sector-level erasure of data.
• Software Protection: Provides software-based write protection to prevent accidental modification.
• Deep Power-down Mode: Reduces power consumption when the device is not in use.

Advantages and Disadvantages

Advantages

• High storage capacity for a wide range of applications.
• Fast access time ensures efficient data retrieval.
• Low power consumption prolongs battery life in portable devices.
• Durable package protects the device from physical damage.
• Small form factor allows for easy integration into various electronic systems.

Disadvantages

• Limited storage capacity compared to higher-end flash memory devices.
• Relatively slower programming and erase times compared to newer models.

Working Principles

The AT45DB021-JI utilizes flash memory technology to store and retrieve data. It employs a Serial Peripheral Interface (SPI) for communication with the host system. The device operates by sending commands and data through the SPI interface, allowing for read, write, and erase operations. The stored data remains intact even when power is removed, making it suitable for applications requiring non-volatile memory.

Application Field Plans

The AT45DB021-JI finds application in various fields, including but not limited to: - Consumer electronics - Automotive systems - Industrial automation - Medical devices - Communication equipment

Alternative Models

Several alternative models with similar functionality are available in the market. Some notable alternatives to the AT45DB021-JI include: - AT25SF041 - MX25L2006E - W25Q16JV

These models offer comparable features and can be considered as alternatives based on specific requirements.

In conclusion, the AT45DB021-JI is a flash memory device with a storage capacity of 2 megabits. It offers fast access time, low power consumption, and a durable package. While it has certain limitations in terms of storage capacity and programming times, it serves as a reliable solution for data storage and retrieval in various electronic applications.

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