AT27C512R-55JC

Product Overview

Category

AT27C512R-55JC belongs to the category of programmable read-only memory (PROM) chips.

Use

This product is primarily used for storing data that needs to be permanently retained, even when power is turned off. It is commonly employed in various electronic devices and systems where non-volatile memory is required.

Characteristics

• Non-volatile: The stored data remains intact even without power supply.
• Programmable: The memory can be written to once using a special programming process.
• Read-only: Once programmed, the data cannot be modified or erased.

Package

AT27C512R-55JC is available in a 32-pin plastic J-lead chip carrier (PLCC) package.

Essence

The essence of AT27C512R-55JC lies in its ability to provide reliable and permanent storage of data in electronic systems.

Packaging/Quantity

This product is typically packaged in reels containing a specified quantity of chips, such as 500 or 1000 units per reel.

Specifications

• Memory Capacity: 512 kilobits (64 kilobytes)
• Operating Voltage: 5V
• Access Time: 55 nanoseconds
• Organization: 64K x 8 bits
• Temperature Range: -40°C to +85°C

Detailed Pin Configuration

1. A14
2. A12
3. A7
4. A6
5. A5
6. A4
7. A3
8. A2
9. A1
10. A0
11. /OE
12. /WE
13. VPP
14. NC
15. DQ0
16. DQ1
17. DQ2
18. DQ3
19. DQ4
20. DQ5
21. DQ6
22. DQ7
23. VCC
24. GND
25. A8
26. A9
27. A11
28. A10
29. /CE
30. NC
31. NC
32. NC

Functional Features

• High-speed access: The 55 nanosecond access time ensures quick retrieval of data.
• Low power consumption: AT27C512R-55JC operates efficiently with low power requirements.
• Reliable data retention: The non-volatile nature of the memory ensures long-term data storage.
• Easy integration: The chip can be easily integrated into various electronic systems.

Advantages and Disadvantages

Advantages

• Permanent data storage
• Fast access time
• Low power consumption
• Easy integration

Disadvantages

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

Working Principles

AT27C512R-55JC utilizes a floating-gate transistor technology to store data. During the programming process, electrical charges are trapped in the floating gate, altering the transistor's behavior and storing the desired data. When reading the memory, the stored charges are detected, allowing the retrieval of the programmed information.

Detailed Application Field Plans

AT27C512R-55JC finds applications in various fields, including: 1. Consumer electronics: Used in devices like televisions, DVD players, and gaming consoles for firmware storage. 2. Automotive industry: Employed in car audio systems, engine control units, and navigation systems for critical data storage. 3. Industrial automation: Utilized in programmable logic controllers (PLCs) and industrial control systems for storing configuration data. 4. Medical devices: Used in medical equipment for storing firmware and patient data.

Detailed and Complete Alternative Models

1. AT27C256R-45PU: 256 kilobit PROM chip with a 45 nanosecond access time.
2. AT28C64B-15SU: 64 kilobyte EEPROM chip with a 15 nanosecond access time.
3. AM29F040B-90JC: 4 megabit flash memory chip with a 90 nanosecond access time.

These alternative models offer similar functionality and can be considered as substitutes for AT27C512R-55JC in various applications.

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