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AT27C1024-90JC
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AT27C1024-90JC

Product Overview

Category

The AT27C1024-90JC belongs to the category of programmable read-only memory (PROM) chips.

Use

This chip is primarily used for storing data that needs to be permanently written and cannot be modified or erased. It is commonly employed in applications where non-volatile memory is required.

Characteristics

  • Non-volatile: The data stored in the AT27C1024-90JC remains intact even when power is removed.
  • High storage capacity: This chip has a capacity of 1,048,576 bits (128 kilobytes).
  • Fast access time: The AT27C1024-90JC offers a quick access time of 90 nanoseconds.
  • Low power consumption: It operates efficiently with low power requirements.

Package

The AT27C1024-90JC is available in a 32-pin PLCC (Plastic Leaded Chip Carrier) package.

Essence

The essence of the AT27C1024-90JC lies in its ability to provide reliable and non-volatile storage for critical data in various electronic systems.

Packaging/Quantity

This chip is typically packaged individually and is available in varying quantities depending on the supplier.

Specifications

  • Memory Type: PROM
  • Capacity: 1,048,576 bits (128 kilobytes)
  • Access Time: 90 nanoseconds
  • Supply Voltage: 5V
  • Package Type: 32-pin PLCC

Detailed Pin Configuration

The AT27C1024-90JC has a total of 32 pins. Here is the 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. OE#
  14. CE#
  15. WE#
  16. I/O0
  17. I/O1
  18. I/O2
  19. I/O3
  20. I/O4
  21. I/O5
  22. I/O6
  23. I/O7
  24. VCC
  25. GND
  26. NC
  27. NC
  28. NC
  29. NC
  30. NC
  31. NC
  32. NC

Functional Features

The AT27C1024-90JC offers the following functional features:

  • Easy programming: The chip can be programmed using standard PROM programming equipment.
  • Non-volatile storage: The data stored in the chip remains intact even when power is removed.
  • High-speed access: With an access time of 90 nanoseconds, it allows for quick retrieval of stored data.
  • Low power consumption: The chip operates efficiently with low power requirements.

Advantages and Disadvantages

Advantages

  • Reliable non-volatile storage
  • High storage capacity
  • Fast access time
  • Low power consumption

Disadvantages

  • Data cannot be modified or erased once programmed
  • Limited flexibility compared to other memory types

Working Principles

The AT27C1024-90JC utilizes a one-time programmable (OTP) technology. During programming, electrical charges are applied to specific memory cells, permanently storing the desired data. Once programmed, the data remains unchanged until the chip reaches its maximum specified erase/write cycles.

Detailed Application Field Plans

The AT27C1024-90JC finds applications in various fields, including: - Embedded systems - Automotive electronics - Industrial control systems - Medical devices - Consumer electronics

Detailed and Complete Alternative Models

Here are some alternative models that offer similar functionality to the AT27C1024-90JC: - AT28C64B-15PU: 64 kilobit (8 kilobyte) OTP PROM with a 150 nanosecond access time. - AM29F040B-90JC: 4 megabit (512 kilobyte) flash memory chip with a 90 nanosecond access time. - M27C256B-12F1: 256 kilobit (32 kilobyte) EPROM with a 120 nanosecond access time.

These alternative models provide options with varying capacities and access times, allowing users to choose the most suitable chip for their specific requirements.

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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de AT27C1024-90JC en soluciones técnicas

Sure! Here are 10 common questions and answers related to the application of AT27C1024-90JC in technical solutions:

  1. Q: What is AT27C1024-90JC? A: AT27C1024-90JC is a type of EEPROM (Electrically Erasable Programmable Read-Only Memory) chip with a capacity of 1 megabit (128 kilobytes). It operates at a speed of 90 nanoseconds.

  2. Q: What are some typical applications of AT27C1024-90JC? A: AT27C1024-90JC is commonly used in various electronic devices, such as microcontrollers, embedded systems, industrial control systems, automotive electronics, and consumer electronics.

  3. Q: How does AT27C1024-90JC store data? A: AT27C1024-90JC uses floating-gate transistors to store data. It can be electrically programmed and erased using specific voltage levels.

  4. Q: Can AT27C1024-90JC be reprogrammed multiple times? A: No, AT27C1024-90JC is a one-time programmable memory chip. Once programmed, the data cannot be changed or erased.

  5. Q: What is the operating voltage range for AT27C1024-90JC? A: The operating voltage range for AT27C1024-90JC is typically between 4.5V and 5.5V.

  6. Q: How can I interface AT27C1024-90JC with a microcontroller? A: AT27C1024-90JC has a standard parallel interface. You can connect it to a microcontroller using address lines, data lines, and control signals like chip enable, output enable, and write enable.

  7. Q: What is the maximum operating temperature for AT27C1024-90JC? A: The maximum operating temperature for AT27C1024-90JC is usually around 70 degrees Celsius.

  8. Q: Can AT27C1024-90JC retain data without power? A: Yes, AT27C1024-90JC is a non-volatile memory, which means it can retain data even when power is removed.

  9. Q: Is AT27C1024-90JC compatible with other EEPROM chips? A: AT27C1024-90JC follows industry-standard pinouts and protocols, making it compatible with other similar EEPROM chips.

  10. Q: Are there any special considerations for programming AT27C1024-90JC? A: Yes, when programming AT27C1024-90JC, you need to ensure that the correct voltage levels and timing requirements are met to avoid damaging the chip or corrupting the data.

Please note that the answers provided here are general and may vary depending on specific datasheet specifications and application requirements.