Adesto Technologies
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AT45DB021E-SHN-T
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AT45DB021E-SHN-T

Product Overview

Category

AT45DB021E-SHN-T 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-T is available in a small form factor package, making it suitable for space-constrained applications.

Essence

The essence of AT45DB021E-SHN-T lies in its ability to provide reliable and efficient data storage solutions for electronic devices.

Packaging/Quantity

The product is typically packaged in reels or trays, with a specific quantity per package depending on the manufacturer's specifications.

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
  • Write Endurance: 100,000 cycles

Detailed Pin Configuration

The AT45DB021E-SHN-T has a total of 8 pins, each serving a specific purpose:

  1. Chip Select (/CS): Used to enable or disable the device.
  2. Serial Clock (SCK): Provides the clock signal for data transfer.
  3. Serial Data Input (SI): Receives data from the microcontroller.
  4. Serial Data Output (SO): Transmits data to the microcontroller.
  5. Write Protect (/WP): Enables or disables write protection.
  6. Reset (/RESET): Resets the device to its default state.
  7. VCC: Power supply voltage.
  8. GND: Ground reference.

Functional Features

  • Page Program Operation: Allows data to be written in page mode, enhancing write performance.
  • Continuous Read Mode: Enables sequential reading of data without the need for readdressing.
  • Sector Erase Operation: Erases a specific sector of memory, facilitating efficient data management.
  • Software Protection: Provides software-based protection against unauthorized access and modification of data.

Advantages and Disadvantages

Advantages

  • Compact size and low power consumption make it suitable for portable devices.
  • High-speed operation allows for quick data transfer.
  • Reliable data retention ensures long-term storage integrity.
  • Easy integration with microcontrollers through the SPI interface.

Disadvantages

  • Limited storage capacity compared to other memory options.
  • Relatively higher cost per unit compared to alternative solutions.

Working Principles

The AT45DB021E-SHN-T utilizes flash memory technology to store and retrieve data. It employs a serial interface, allowing for efficient communication with microcontrollers. The device operates based on the principles of page programming, continuous reading, and sector erasing.

Detailed Application Field Plans

The AT45DB021E-SHN-T finds applications in various electronic devices, including but not limited to: 1. Smartphones and tablets 2. Wearable devices 3. Automotive electronics 4. Industrial control systems 5. IoT devices

Detailed and Complete Alternative Models

  1. AT45DB041E-SHN-T: 4 megabits (512 kilobytes) memory size.
  2. AT45DB081E-SHN-T: 8 megabits (1 megabyte) memory size.
  3. AT45DB161E-SHN-T: 16 megabits (2 megabytes) memory size.
  4. AT45DB321E-SHN-T: 32 megabits (4 megabytes) memory size.
  5. AT45DB641E-SHN-T: 64 megabits (8 megabytes) memory size.

These alternative models offer increased storage capacity while maintaining similar characteristics and functionality to the AT45DB021E-SHN-T.

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10 pirs û bersivên hevpar ên têkildarî sepana AT45DB021E-SHN-T di çareseriyên teknîkî de navnîş bikin

Sure! Here are 10 common questions and answers related to the application of AT45DB021E-SHN-T in technical solutions:

  1. Q: What is the AT45DB021E-SHN-T? A: The AT45DB021E-SHN-T is a serial flash memory chip manufactured by Adesto Technologies. It has a capacity of 2 megabits (256 kilobytes) and operates on a serial interface.

  2. Q: What are some typical applications for the AT45DB021E-SHN-T? A: This flash memory chip is commonly used in various embedded systems, IoT devices, industrial automation, consumer electronics, and automotive applications where non-volatile storage is required.

  3. Q: How does the AT45DB021E-SHN-T connect to a microcontroller or system? A: The AT45DB021E-SHN-T uses a standard SPI (Serial Peripheral Interface) for communication with a microcontroller or system. It requires four signal lines: SCK (serial clock), SI (serial input), SO (serial output), and CS (chip select).

  4. Q: What is the operating voltage range of the AT45DB021E-SHN-T? A: The AT45DB021E-SHN-T operates within a voltage range of 2.7V to 3.6V.

  5. Q: Can the AT45DB021E-SHN-T be operated at higher voltages? A: No, exceeding the specified voltage range can damage the chip and void its warranty. It is important to adhere to the recommended voltage range.

  6. Q: What is the maximum data transfer rate of the AT45DB021E-SHN-T? A: The maximum data transfer rate of this flash memory chip is typically around 66 megabits per second (Mbps).

  7. Q: Does the AT45DB021E-SHN-T support hardware or software write protection? A: Yes, the chip provides both hardware and software write protection features to prevent accidental or unauthorized modification of data.

  8. Q: Can the AT45DB021E-SHN-T be used for code storage in microcontrollers? A: Yes, it can be used for storing code, configuration data, or any other non-volatile data required by a microcontroller or system.

  9. Q: What is the endurance rating of the AT45DB021E-SHN-T? A: The AT45DB021E-SHN-T has an endurance rating of at least 100,000 program/erase cycles, ensuring reliable and long-lasting operation.

  10. Q: Are there any specific precautions to consider when using the AT45DB021E-SHN-T? A: It is important to handle the chip with proper electrostatic discharge (ESD) precautions to avoid damaging its sensitive components. Additionally, following the recommended voltage and temperature ranges is crucial for optimal performance and longevity.

Please note that these answers are general and may vary depending on the specific requirements and implementation of the AT45DB021E-SHN-T in different technical solutions.