AT45DB021B-SU

Product Overview

Category

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

Use

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

Characteristics

• High-speed serial interface
• Non-volatile memory
• Low power consumption
• Wide operating voltage range
• Small form factor

Package

AT45DB021B-SU is available in a small 8-pin SOIC (Small Outline Integrated Circuit) package.

Essence

The essence of AT45DB021B-SU 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-SU chips.

Specifications

• Memory Size: 2 megabits (256 kilobytes)
• Interface: Serial Peripheral Interface (SPI)
• Operating Voltage Range: 2.7V to 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. Supply Voltage (VCC)
8. Output Enable (/OE)

Functional Features

• Page Program Operation
• Sequential Read Operation
• Continuous Array Read
• Erase Operations
• Software Protection
• Hardware Protection
• Deep Power-down Mode

Advantages

• High-speed data transfer
• Low power consumption
• Compact size
• Reliable data retention
• Easy integration into existing systems

Disadvantages

• Limited storage capacity (2 megabits)
• Relatively higher cost compared to other memory options

Working Principles

AT45DB021B-SU utilizes the Serial Peripheral Interface (SPI) for communication with the host device. It stores and retrieves data by performing various operations such as page programming, sequential reading, erasing, and software/hardware protection.

Detailed Application Field Plans

AT45DB021B-SU finds applications in a wide range of electronic devices, including but not limited to: - Smartphones - Tablets - Digital cameras - Portable media players - Automotive systems - Industrial control systems

Detailed and Complete Alternative Models

1. AT45DB041B-SU: 4 megabit Serial DataFlash® Memory
2. AT45DB081B-SU: 8 megabit Serial DataFlash® Memory
3. AT45DB161B-SU: 16 megabit Serial DataFlash® Memory
4. AT45DB321B-SU: 32 megabit Serial DataFlash® Memory
5. AT45DB641B-SU: 64 megabit Serial DataFlash® Memory

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

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