AT45DB021B-CC

Product Overview

Category

AT45DB021B-CC 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
• Reliable performance

Package

AT45DB021B-CC is available in a small form factor package, making it suitable for space-constrained applications.

Essence

The essence of AT45DB021B-CC lies in its ability to store and retrieve digital information reliably and efficiently.

Packaging/Quantity

This product is typically packaged in reels or trays, with a quantity of 1000 units per reel/tray.

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
• Erase/Write cycles: 10,000 minimum

Detailed Pin Configuration

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

Functional Features

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

Advantages

• High-speed data transfer enables quick access to stored information
• Low power consumption prolongs battery life in portable devices
• Compact size allows integration into space-constrained designs
• Reliable performance ensures data integrity and longevity

Disadvantages

• Limited memory capacity may not be sufficient for certain applications requiring larger storage space
• Erase/write cycle limitations may restrict frequent data modification in some use cases

Working Principles

AT45DB021B-CC 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 digital information as charges. The memory cells are organized into sectors, which can be individually erased or written. Data is transferred between the host and the memory using the SPI protocol.

Detailed Application Field Plans

AT45DB021B-CC finds application 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

Detailed and Complete Alternative Models

1. AT45DB011B-CC: 1 megabit flash memory with similar features and specifications.
2. AT45DB041B-CC: 4 megabit flash memory offering increased storage capacity.
3. AT45DB081B-CC: 8 megabit flash memory with extended memory capabilities.

These alternative models provide options with varying memory capacities to suit different application requirements.

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