AT45DB021E-SHN-B

Product Overview

Category

AT45DB021E-SHN-B belongs to the category of Serial DataFlash® Memory.

Use

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

Characteristics

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

Package

The AT45DB021E-SHN-B comes 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 efficient data storage solutions for electronic devices.

Packaging/Quantity

The AT45DB021E-SHN-B is typically packaged in reels and is available in large quantities to meet the demands of mass production.

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

The AT45DB021E-SHN-B has a total of 8 pins:

1. VCC: Power supply voltage
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: Allows data to be written to the memory in page-sized increments.
• Continuous Read Mode: Enables sequential reading of data from the memory without the need for readdressing.
• Sector Erase Operation: Erases a specified sector of memory, allowing for efficient data management.
• Deep Power-down Mode: Reduces power consumption to a minimum when the device is not in use.

Advantages and Disadvantages

Advantages

• High-speed operation enables fast data transfer.
• Low power consumption prolongs battery life in portable devices.
• Small form factor package allows for easy integration into compact designs.
• Reliable data retention ensures long-term storage of critical information.

Disadvantages

• Limited memory size may not be sufficient for certain applications requiring larger storage capacity.
• Serial interface may have slower data transfer rates compared to parallel interfaces.

Working Principles

The AT45DB021E-SHN-B utilizes flash memory technology to store and retrieve data. It employs a serial interface, specifically the Serial Peripheral Interface (SPI), to communicate with the host device. The memory is organized into sectors and pages, allowing for efficient read and write operations. The device operates within a specified voltage range and can withstand a wide temperature range, making it suitable for various environments.

Detailed Application Field Plans

The AT45DB021E-SHN-B finds application in a wide range of electronic devices, including but not limited to: - Consumer electronics - Industrial automation systems - Automotive electronics - Medical devices - Communication equipment

In consumer electronics, it can be used for storing firmware, configuration data, or user settings. In industrial automation systems, it can serve as non-volatile memory for data logging or program storage. In automotive electronics, it can be utilized for storing calibration data or event logs. In medical devices, it can store patient data or device configurations. In communication equipment, it can be employed for buffering or caching data.

Detailed and Complete Alternative Models

1. AT45DB011D-SSHN-T: 1 megabit Serial DataFlash® Memory with similar features and specifications.
2. AT45DB041D-SSHN-T: 4 megabit Serial DataFlash® Memory with higher storage capacity.
3. AT45DB081D-SSHN-T: 8 megabit Serial DataFlash® Memory with increased memory size.

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

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