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AT49F002-90PI
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AT49F002-90PI

Product Overview

Category

AT49F002-90PI belongs to the category of Flash Memory Chips.

Use

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

Characteristics

  • Non-volatile memory
  • High-speed read and write operations
  • Low power consumption
  • Wide operating voltage range

Package

AT49F002-90PI is available in a 32-pin plastic DIP (Dual In-line Package).

Essence

The essence of AT49F002-90PI lies in its ability to store and retrieve digital information reliably and efficiently.

Packaging/Quantity

This product is typically packaged in tubes or trays, with quantities varying based on customer requirements.

Specifications

  • Memory Size: 2 Megabits (256K x 8)
  • Operating Voltage: 4.5V - 5.5V
  • Access Time: 90 nanoseconds
  • Erase/Program Cycle Endurance: 10,000 cycles
  • Data Retention: 20 years

Detailed Pin Configuration

  1. A16
  2. A15
  3. A12
  4. A7
  5. A6
  6. A5
  7. A4
  8. A3
  9. A2
  10. A1
  11. A0
  12. VPP
  13. WE#
  14. OE#
  15. CE#
  16. BYTE#
  17. NC
  18. DQ0
  19. DQ1
  20. DQ2
  21. DQ3
  22. DQ4
  23. DQ5
  24. DQ6
  25. DQ7
  26. GND
  27. VCC
  28. RP#
  29. RY/BY#
  30. RESET#
  31. NC
  32. NC

Functional Features

  • High-speed data transfer
  • Easy integration into existing systems
  • Flexible programming and erasing options
  • Reliable data retention
  • Low power consumption

Advantages

  • Fast access time enables quick data retrieval
  • Wide operating voltage range allows compatibility with various devices
  • High endurance ensures longevity of the memory chip
  • Non-volatile nature prevents data loss during power outages

Disadvantages

  • Limited storage capacity compared to newer flash memory chips
  • Higher cost per megabit compared to higher-density alternatives

Working Principles

AT49F002-90PI utilizes a floating gate transistor technology to store digital information. The memory cells are organized in a grid-like structure, with each cell capable of storing one bit of data. The state of each cell is determined by the presence or absence of an electrical charge on its floating gate.

Detailed Application Field Plans

AT49F002-90PI finds applications in various electronic devices, including but not limited to: - Microcontrollers - Embedded systems - Communication devices - Automotive electronics - Consumer electronics

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to AT49F002-90PI include: - AT49BV002T - AM29F002BT - S29GL02GS

These models provide comparable features and can be considered as alternatives based on specific requirements.

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技術ソリューションにおける AT49F002-90PI の適用に関連する 10 件の一般的な質問と回答をリストします。

Sure! Here are 10 common questions and answers related to the application of AT49F002-90PI in technical solutions:

  1. Q: What is the AT49F002-90PI? A: The AT49F002-90PI is a 2-megabit (256K x 8) CMOS flash memory chip manufactured by Atmel.

  2. Q: What are the key features of the AT49F002-90PI? A: The key features include a 90ns access time, low power consumption, byte-wide data access, and compatibility with various microcontrollers.

  3. Q: How can I interface the AT49F002-90PI with a microcontroller? A: The AT49F002-90PI uses a standard parallel interface, making it compatible with most microcontrollers. You can connect it using address, data, and control lines.

  4. Q: What voltage levels does the AT49F002-90PI support? A: The AT49F002-90PI supports a single power supply voltage range of 4.5V to 5.5V.

  5. Q: Can I use the AT49F002-90PI as a boot device for my microcontroller? A: Yes, the AT49F002-90PI can be used as a boot device since it supports random access read and fast programming times.

  6. Q: How do I program the AT49F002-90PI? A: Programming the AT49F002-90PI requires a programming algorithm and a programmer that supports the chip's programming specifications.

  7. Q: Can I erase the AT49F002-90PI? A: Yes, the AT49F002-90PI supports both sector and chip erase operations. However, please note that the chip can only be erased electrically.

  8. Q: What is the typical lifespan of the AT49F002-90PI? A: The AT49F002-90PI has a typical endurance of 100,000 erase/write cycles per sector and a data retention period of 20 years.

  9. Q: Can I use the AT49F002-90PI in industrial applications? A: Yes, the AT49F002-90PI is suitable for industrial applications due to its wide operating temperature range (-40°C to +85°C) and high reliability.

  10. Q: Are there any application notes or reference designs available for the AT49F002-90PI? A: Yes, Atmel provides application notes and reference designs that can help you integrate the AT49F002-90PI into your technical solutions. These resources are available on their official website.

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