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AT28HC64B-12JA

AT28HC64B-12JA

Product Overview

Category

AT28HC64B-12JA belongs to the category of high-speed, low-power Electrically Erasable Programmable Read-Only Memory (EEPROM) chips.

Use

This product is primarily used for non-volatile data storage in various electronic devices such as microcontrollers, computers, and consumer electronics.

Characteristics

  • High-speed operation
  • Low power consumption
  • Non-volatile memory
  • Electrically erasable and programmable
  • Reliable and durable

Package

AT28HC64B-12JA is available in a 32-pin plastic dual in-line package (PDIP).

Essence

The essence of AT28HC64B-12JA lies in its ability to store and retrieve data reliably, while offering high-speed operation and low power consumption.

Packaging/Quantity

AT28HC64B-12JA is typically packaged in reels or tubes, with each reel or tube containing a specific quantity of chips. The exact packaging and quantity may vary depending on the manufacturer.

Specifications

  • Memory Size: 64 kilobits (8 kilobytes)
  • Operating Voltage: 2.7V - 5.5V
  • Access Time: 120 ns
  • Organization: 8K x 8 bits
  • Interface: Parallel
  • Data Retention: 10 years
  • Endurance: 100,000 write cycles

Detailed Pin Configuration

  1. A0
  2. A1
  3. A2
  4. A3
  5. A4
  6. A5
  7. A6
  8. A7
  9. VSS (Ground)
  10. CE (Chip Enable)
  11. OE (Output Enable)
  12. WE (Write Enable)
  13. I/O0
  14. I/O1
  15. I/O2
  16. I/O3
  17. I/O4
  18. I/O5
  19. I/O6
  20. I/O7
  21. NC (No Connection)
  22. NC
  23. NC
  24. VCC (Power Supply)
  25. NC
  26. NC
  27. NC
  28. NC
  29. NC
  30. NC
  31. NC
  32. NC

Functional Features

  • High-speed read and write operations
  • Low power consumption during standby mode
  • Electrically erasable and programmable memory cells
  • Automatic erase-before-write capability
  • Hardware and software data protection mechanisms

Advantages

  • Fast access time allows for efficient data retrieval
  • Low power consumption extends battery life in portable devices
  • Non-volatile memory ensures data retention even during power loss
  • Electrically erasable and programmable nature enables flexibility in data storage and updates
  • Reliable and durable design ensures long-term usage

Disadvantages

  • Limited storage capacity compared to other memory technologies
  • Higher cost per bit compared to some alternative memory options
  • Limited endurance with a maximum of 100,000 write cycles

Working Principles

AT28HC64B-12JA utilizes EEPROM technology, which consists of floating-gate transistors that can store electrical charges. The stored charges represent binary data, which can be read, erased, and programmed electrically. The chip operates by applying appropriate voltage levels to the control pins, enabling read or write operations on specific memory locations.

Detailed Application Field Plans

AT28HC64B-12JA finds applications in various fields, including: 1. Microcontrollers 2. Computers and servers 3. Automotive electronics 4. Industrial automation systems 5. Consumer electronics 6. Medical devices 7. Communication equipment

Detailed and Complete Alternative Models

  1. AT28C64B-15PU: Similar specifications with a slightly slower access time of 150 ns.
  2. AT28HC256-12PC: Higher storage capacity of 256 kilobits (32 kilobytes) with the same access time and voltage range.
  3. AT28BV64B-20JC: Lower power consumption variant with an extended voltage range of 2.7V - 5.5V.

These alternative models offer different features and specifications to cater to specific application requirements.

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技術ソリューションにおける AT28HC64B-12JA 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 AT28HC64B-12JA in technical solutions:

  1. Q: What is the AT28HC64B-12JA? A: The AT28HC64B-12JA is a high-speed, low-power CMOS 64K (8K x 8) EEPROM memory chip.

  2. Q: What are the key features of the AT28HC64B-12JA? A: The key features include a 12ns access time, wide voltage range (2.7V to 5.5V), low power consumption, and a 64Kbit storage capacity.

  3. Q: How can I interface the AT28HC64B-12JA with a microcontroller? A: The AT28HC64B-12JA uses a standard parallel interface, making it compatible with most microcontrollers. You can connect it using address, data, and control lines.

  4. Q: Can I use the AT28HC64B-12JA for code storage in embedded systems? A: Yes, the AT28HC64B-12JA can be used for storing program code in embedded systems. It provides non-volatile storage, allowing the code to be retained even when power is removed.

  5. Q: What is the maximum operating frequency of the AT28HC64B-12JA? A: The AT28HC64B-12JA can operate at frequencies up to 83MHz, making it suitable for high-speed applications.

  6. Q: Can I write data to the AT28HC64B-12JA multiple times? A: Yes, the AT28HC64B-12JA supports both read and write operations. You can write data to it multiple times, but keep in mind that it has a limited endurance (typically 100,000 write cycles).

  7. Q: Is the AT28HC64B-12JA resistant to data loss during power outages? A: Yes, the AT28HC64B-12JA is non-volatile, meaning it retains data even when power is lost. It uses EEPROM technology, which does not require constant power to maintain stored information.

  8. Q: Can I use the AT28HC64B-12JA in automotive applications? A: Yes, the AT28HC64B-12JA is designed to operate in a wide temperature range (-40°C to +85°C) and is suitable for automotive applications.

  9. Q: What is the package type of the AT28HC64B-12JA? A: The AT28HC64B-12JA comes in a 32-lead PLCC (Plastic Leaded Chip Carrier) package, which provides good protection and ease of soldering.

  10. Q: Are there any special considerations for handling the AT28HC64B-12JA? A: It is recommended to follow standard ESD (Electrostatic Discharge) precautions while handling the AT28HC64B-12JA to prevent damage. Additionally, ensure proper voltage levels and timing requirements are met during interfacing.

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