AT45DB021D-SSH-B

Product Overview

Category

AT45DB021D-SSH-B belongs to the category of Serial DataFlash® Memory.

Use

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

Characteristics

• Serial interface for easy integration with microcontrollers
• Non-volatile memory for reliable data retention
• High-speed operation for efficient data transfer
• Low power consumption for extended battery life

Package

AT45DB021D-SSH-B is available in a small form factor package, making it suitable for space-constrained applications.

Essence

The essence of this product lies in its ability to provide reliable and high-speed data storage in a compact package.

Packaging/Quantity

AT45DB021D-SSH-B is typically packaged in reels or trays, with a quantity of 250 units per reel/tray.

Specifications

• Memory Size: 2 megabits (256 kilobytes)
• Interface: Serial Peripheral Interface (SPI)
• Operating Voltage: 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. VCC: Power supply voltage
2. GND: Ground reference
3. SI: Serial input for data transfer
4. SO: Serial output for data retrieval
5. WP: Write protect pin for write enable/disable
6. HOLD: Hold pin for suspending serial communication
7. SCK: Serial clock for synchronization
8. CS: Chip select for device activation

Functional Features

• Page Program Operation: Allows individual bytes or full pages to be programmed
• Continuous Read Mode: Enables sequential reading of multiple pages without readdressing
• Sector Erase: Erases a specific sector of memory for efficient data management
• Deep Power-down Mode: Reduces power consumption to a minimum during idle periods

Advantages and Disadvantages

Advantages

• Compact size and low power consumption make it suitable for portable devices
• High-speed operation facilitates quick data access
• Reliable data retention ensures long-term storage integrity

Disadvantages

• Limited storage capacity compared to higher-capacity memory options
• Requires an external microcontroller for interfacing and control

Working Principles

AT45DB021D-SSH-B utilizes the Serial Peripheral Interface (SPI) to communicate with a microcontroller. It stores data in non-volatile memory cells, ensuring data retention even when power is disconnected. The device can be programmed at the byte or page level, and data can be read sequentially without readdressing. Various operations such as erase and write protection are supported to manage data efficiently.

Detailed Application Field Plans

AT45DB021D-SSH-B finds applications in various fields, including: 1. Consumer Electronics: Used in digital cameras, MP3 players, and gaming consoles for data storage. 2. Industrial Automation: Employed in data loggers, control systems, and measurement devices for reliable data storage. 3. Automotive: Integrated into infotainment systems, navigation units, and engine control modules for storing critical information. 4. Medical Devices: Utilized in patient monitoring systems, medical imaging equipment, and diagnostic devices for data storage.

Detailed and Complete Alternative Models

1. AT45DB011D-SSH-B: 1 megabit (128 kilobytes) memory size variant
2. AT45DB041D-SSH-B: 4 megabit (512 kilobytes) memory size variant
3. AT45DB081D-SSH-B: 8 megabit (1 megabyte) memory size variant
4. AT45DB161D-SSH-B: 16 megabit (2 megabytes) memory size variant

These alternative models offer different memory capacities to suit specific application requirements.

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