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AT25DF021-MHF-Y

AT25DF021-MHF-Y

Product Overview

Category

AT25DF021-MHF-Y belongs to the category of Serial Flash Memory.

Use

It is primarily used for storing and retrieving digital information in electronic devices.

Characteristics

  • Non-volatile memory: Retains data even when power is turned off.
  • High storage capacity: 2 megabits (256 kilobytes).
  • Serial interface: Allows for easy integration with microcontrollers.
  • Low power consumption: Ideal for battery-powered devices.
  • Fast read and write operations: Enables efficient data transfer.

Package

AT25DF021-MHF-Y is available in a small form factor package, making it suitable for space-constrained applications.

Essence

The essence of AT25DF021-MHF-Y lies in its ability to provide reliable and high-performance non-volatile memory storage.

Packaging/Quantity

This product is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

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 program/erase cycles

Detailed Pin Configuration

  1. Chip Select (/CS)
  2. Serial Clock (SCK)
  3. Serial Data Input (SI)
  4. Serial Data Output (SO)
  5. Write Protect (/WP)
  6. Hold (/HOLD)
  7. VCC (Power Supply)
  8. Ground (GND)

Functional Features

  • Sector erase and program operations
  • Block erase and program operations
  • Chip erase operation
  • Software and hardware protection mechanisms
  • Continuous read mode
  • Fast program and erase times

Advantages

  • Non-volatile memory ensures data retention even during power loss.
  • High storage capacity allows for storing large amounts of data.
  • Serial interface simplifies integration with microcontrollers.
  • Low power consumption prolongs battery life in portable devices.
  • Fast read and write operations enable efficient data transfer.

Disadvantages

  • Limited storage capacity compared to other memory technologies.
  • Relatively slower write speeds compared to some alternative models.
  • Vulnerable to physical damage, such as electrostatic discharge.

Working Principles

AT25DF021-MHF-Y utilizes the Serial Peripheral Interface (SPI) protocol to communicate with a host microcontroller. It stores data in non-volatile memory cells, which retain information even when power is turned off. The memory can be accessed and modified through various commands sent via the SPI interface.

Detailed Application Field Plans

AT25DF021-MHF-Y finds applications in various electronic devices, including but not limited to: - Consumer electronics - Automotive systems - Industrial control systems - Medical devices - Communication equipment

Detailed and Complete Alternative Models

  1. AT25SF041: 4 megabits (512 kilobytes) Serial Flash Memory
  2. MX25L8006E: 8 megabits (1 megabyte) Serial Flash Memory
  3. W25Q64FV: 64 megabits (8 megabytes) Serial Flash Memory
  4. S25FL256S: 256 megabits (32 megabytes) Serial Flash Memory

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

Word count: 511 words

Seznam 10 běžných otázek a odpovědí souvisejících s aplikací AT25DF021-MHF-Y v technických řešeních

Sure! Here are 10 common questions and answers related to the application of AT25DF021-MHF-Y in technical solutions:

  1. Q: What is AT25DF021-MHF-Y? A: AT25DF021-MHF-Y is a serial flash memory chip manufactured by Adesto Technologies. It has a capacity of 2 megabits (256 kilobytes) and operates on a Serial Peripheral Interface (SPI).

  2. Q: What are the typical applications of AT25DF021-MHF-Y? A: AT25DF021-MHF-Y is commonly used in various embedded systems, IoT devices, consumer electronics, and industrial applications that require non-volatile storage for program code, configuration data, or firmware updates.

  3. Q: What is the operating voltage range of AT25DF021-MHF-Y? A: The operating voltage range of AT25DF021-MHF-Y is typically between 2.7V and 3.6V.

  4. Q: What is the maximum clock frequency supported by AT25DF021-MHF-Y? A: AT25DF021-MHF-Y supports a maximum clock frequency of 66 MHz.

  5. Q: How can I interface with AT25DF021-MHF-Y? A: AT25DF021-MHF-Y uses the SPI protocol for communication. You can interface with it using standard SPI pins like SCK (Serial Clock), MOSI (Master Out Slave In), MISO (Master In Slave Out), and CS (Chip Select).

  6. Q: Can AT25DF021-MHF-Y be used for both read and write operations? A: Yes, AT25DF021-MHF-Y supports both read and write operations. It allows you to read data from the memory array and also write new data to it.

  7. Q: What is the erase mechanism of AT25DF021-MHF-Y? A: AT25DF021-MHF-Y supports sector-based erasure. It divides the memory array into multiple sectors, and you can erase a sector at a time.

  8. Q: Is AT25DF021-MHF-Y capable of executing code directly from the flash memory? A: Yes, AT25DF021-MHF-Y has an execute-in-place (XIP) capability, allowing you to execute code directly from the flash memory without the need for copying it to RAM.

  9. Q: Does AT25DF021-MHF-Y have any security features? A: Yes, AT25DF021-MHF-Y provides several security features like hardware and software protection mechanisms, write protection, and lockable sectors to prevent unauthorized access or modification of data.

  10. Q: Can I daisy-chain multiple AT25DF021-MHF-Y chips together? A: No, AT25DF021-MHF-Y does not support daisy-chaining. Each chip needs to be individually connected to the SPI bus.

Please note that these answers are general and may vary depending on the specific implementation and requirements of your technical solution.