Adesto Technologies
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AT25SF321-SHD-B
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AT25SF321-SHD-B

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Non-volatile Serial Flash Memory
  • Characteristics: High-speed, low-power, small form factor
  • Package: SOP (Small Outline Package)
  • Essence: Reliable storage solution for various electronic devices
  • Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

  • Memory Size: 32 Megabits (4 Megabytes)
  • Interface: Serial Peripheral Interface (SPI)
  • Operating Voltage: 2.7V to 3.6V
  • Operating Temperature: -40°C to +85°C
  • Write Protection: Software and Hardware options available
  • Data Retention: Up to 20 years
  • Erase/Program Cycles: 100,000 cycles

Pin Configuration

The AT25SF321-SHD-B has a total of 8 pins:

  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

  • High-speed data transfer with SPI interface
  • Low power consumption for extended battery life
  • Flexible write protection options for data security
  • Small form factor suitable for space-constrained designs
  • Wide operating temperature range for versatile applications

Advantages

  • Fast read/write operations enhance overall system performance
  • Low power consumption extends battery life in portable devices
  • Compact package size allows for integration in various designs
  • Reliable data retention ensures long-term storage integrity
  • Versatile write protection options provide enhanced security

Disadvantages

  • Limited memory capacity compared to larger flash memory devices
  • Higher cost per megabyte compared to traditional storage solutions
  • Requires additional circuitry for proper interfacing with the host system

Working Principles

The AT25SF321-SHD-B utilizes the Serial Peripheral Interface (SPI) to communicate with the host system. It stores data in non-volatile memory cells, which retain information even when power is disconnected. The SPI interface allows for high-speed data transfer between the IC and the host, enabling efficient read and write operations.

Detailed Application Field Plans

The AT25SF321-SHD-B is widely used in various electronic devices, including but not limited to:

  1. Consumer Electronics: Smartphones, tablets, digital cameras
  2. Automotive: Infotainment systems, instrument clusters
  3. Industrial: Internet of Things (IoT) devices, control systems
  4. Medical: Patient monitoring devices, diagnostic equipment
  5. Communication: Routers, modems, network switches

Detailed Alternative Models

  1. AT25SF641-SHD-B: 64 Megabit (8 Megabyte) version of the same series
  2. AT25SF128A-SHD-B: 128 Megabit (16 Megabyte) version with extended capacity
  3. AT25SF256-SHD-B: 256 Megabit (32 Megabyte) version for higher storage requirements

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

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Noem 10 veelgestelde vragen en antwoorden met betrekking tot de toepassing van AT25SF321-SHD-B in technische oplossingen

Sure! Here are 10 common questions and answers related to the application of AT25SF321-SHD-B in technical solutions:

  1. Q: What is the AT25SF321-SHD-B? A: The AT25SF321-SHD-B is a serial flash memory device manufactured by Adesto Technologies.

  2. Q: What is the storage capacity of the AT25SF321-SHD-B? A: The AT25SF321-SHD-B has a storage capacity of 32 megabits (4 megabytes).

  3. Q: What is the interface used to communicate with the AT25SF321-SHD-B? A: The AT25SF321-SHD-B uses the Serial Peripheral Interface (SPI) for communication.

  4. Q: What voltage levels does the AT25SF321-SHD-B support? A: The AT25SF321-SHD-B supports both 3.3V and 2.5V voltage levels.

  5. Q: Can the AT25SF321-SHD-B be used in industrial applications? A: Yes, the AT25SF321-SHD-B is designed to operate reliably in industrial environments.

  6. Q: Does the AT25SF321-SHD-B have any security features? A: Yes, the AT25SF321-SHD-B provides hardware and software protection mechanisms to secure data stored in the memory.

  7. Q: What is the maximum operating frequency of the AT25SF321-SHD-B? A: The AT25SF321-SHD-B can operate at frequencies up to 104 MHz.

  8. Q: Can the AT25SF321-SHD-B be used as a boot device? A: Yes, the AT25SF321-SHD-B can be used as a boot device in various embedded systems.

  9. Q: Is the AT25SF321-SHD-B compatible with other SPI flash memory devices? A: Yes, the AT25SF321-SHD-B is compatible with standard SPI flash memory protocols and can be used alongside other devices.

  10. Q: What are some typical applications of the AT25SF321-SHD-B? A: The AT25SF321-SHD-B is commonly used in automotive, industrial, and consumer electronics applications for data storage, firmware updates, and code execution.

Please note that these answers are general and may vary depending on specific implementation requirements.