AT45DB021-RI

Product Overview

Category

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

Use

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

Characteristics

• Non-volatile memory
• High-speed data transfer
• Low power consumption
• Compact size

Package

AT45DB021-RI is available in a small form factor package, making it suitable for integration into compact electronic devices.

Essence

The essence of AT45DB021-RI lies in its ability to provide reliable and efficient data storage solutions for a wide range of applications.

Packaging/Quantity

The product is typically packaged in reels or trays, with each containing a specific quantity of AT45DB021-RI units.

Specifications

• Memory 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
• Endurance: 10,000 write cycles

Detailed Pin Configuration

1. VCC: Power supply voltage
2. GND: Ground
3. SI: Serial data input
4. SO: Serial data output
5. SCK: Serial clock input
6. CS: Chip select
7. WP: Write protect
8. HOLD: Hold input

Functional Features

• Page program operation for fast data writing
• Continuous read mode for efficient data retrieval
• Sector erase capability for flexible memory management
• Software and hardware protection mechanisms for data security
• Deep power-down mode for ultra-low power consumption

Advantages and Disadvantages

Advantages

• High-speed data transfer enables quick access to stored information.
• Low power consumption prolongs battery life in portable devices.
• Compact size allows for integration into space-constrained designs.

Disadvantages

• Limited memory capacity may not be suitable for applications requiring larger storage.
• Endurance limitation of 10,000 write cycles may restrict certain use cases.

Working Principles

AT45DB021-RI utilizes the Serial Peripheral Interface (SPI) to communicate with the host device. It employs a combination of floating gate and control gate transistors to store data in non-volatile memory cells. The page program operation enables fast writing of data, while the continuous read mode facilitates efficient retrieval. The memory can be erased at the sector level, providing flexibility in managing stored information.

Detailed Application Field Plans

AT45DB021-RI finds applications in various electronic devices, including but not limited to: 1. Smartphones and tablets 2. Digital cameras 3. Portable media players 4. Automotive systems 5. Industrial control systems

Alternative Models

1. AT45DB041-RI: Offers double the memory capacity compared to AT45DB021-RI.
2. AT45DB081-RI: Provides four times the memory capacity of AT45DB021-RI.
3. AT45DB161-RI: Offers eight times the memory capacity of AT45DB021-RI.

These alternative models cater to different storage requirements and can be considered based on specific application needs.

In conclusion, AT45DB021-RI is a flash memory device that offers reliable and efficient data storage solutions. Its compact size, low power consumption, and high-speed data transfer make it suitable for a wide range of electronic devices. However, its limited memory capacity and endurance should be taken into consideration when selecting the appropriate storage solution.