AT45DB021B-TC

Product Overview

Category

AT45DB021B-TC belongs to the category of Serial DataFlash® Memory.

Use

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

Characteristics

• Non-volatile memory
• Serial interface
• High-speed operation
• Low power consumption

Package

AT45DB021B-TC is available in a compact 8-pin Thin Small Outline (TSO) package.

Essence

The essence of AT45DB021B-TC lies in its ability to provide reliable and efficient data storage solutions for electronic devices.

Packaging/Quantity

This product is typically packaged in reels, with each reel containing a specific quantity of AT45DB021B-TC chips.

Specifications

• Memory Size: 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: 100,000 write cycles

Detailed Pin Configuration

1. Chip Select (/CS)
2. Serial Clock (SCK)
3. Serial Data Input/Output (SI/O)
4. Write Protect (/WP)
5. Reset (/RESET)
6. Ground (GND)
7. Power Supply (VCC)
8. No Connection (NC)

Functional Features

• Page Program Operation
• Continuous Read Mode
• Sector Erase Capability
• Software Protection Mechanism
• Deep Power-down Mode
• Fast Read Option

Advantages

• Compact size and low power consumption make it suitable for portable devices.
• High-speed operation enables quick data access and transfer.
• Non-volatile memory ensures data retention even during power loss.
• Software protection mechanism enhances data security.

Disadvantages

• Limited storage capacity compared to other memory options.
• Relatively higher cost per megabit compared to larger memory chips.
• Requires a compatible serial interface for communication.

Working Principles

AT45DB021B-TC utilizes the Serial Peripheral Interface (SPI) to communicate with the host device. It stores and retrieves data by programming and reading individual memory pages. The chip's internal circuitry manages data organization, error correction, and wear leveling to ensure reliable operation.

Detailed Application Field Plans

AT45DB021B-TC finds applications in various electronic devices, including but not limited to: - Smartphones and tablets - Digital cameras - Portable media players - Automotive systems - Industrial control systems

Alternative Models

1. AT45DB041B-TC: 4 megabits (512 kilobytes)
2. AT45DB081B-TC: 8 megabits (1 megabyte)
3. AT45DB161B-TC: 16 megabits (2 megabytes)
4. AT45DB321B-TC: 32 megabits (4 megabytes)
5. AT45DB641B-TC: 64 megabits (8 megabytes)

These alternative models offer increased storage capacity while maintaining similar characteristics and functionality.

In conclusion, AT45DB021B-TC is a compact and efficient Serial DataFlash® Memory chip that provides reliable data storage solutions for various electronic devices. Its high-speed operation, low power consumption, and software protection mechanism make it an ideal choice for applications requiring non-volatile memory.