AT27C516-45JC

Product Overview

Category

AT27C516-45JC belongs to the category of programmable read-only memory (PROM) chips.

Use

It is primarily used for storing data that needs to be permanently retained, even when power is turned off. PROM chips are commonly used in various electronic devices such as computers, microcontrollers, and consumer electronics.

Characteristics

• Non-volatile: The stored data remains intact even without power.
• Programmable: The chip can be programmed with specific data before being installed in a device.
• Read-only: Once programmed, the data cannot be modified or erased.

Package

AT27C516-45JC is available in a 32-pin plastic J-lead chip carrier (PLCC) package.

Essence

The essence of AT27C516-45JC lies in its ability to provide non-volatile storage for critical data in electronic devices.

Packaging/Quantity

AT27C516-45JC 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

• Operating Voltage: 5V
• Access Time: 45 nanoseconds
• Memory Size: 512 kilobits (64 kilobytes)
• Organization: 8 bits x 64 kilobytes
• Erase Time: Not applicable (non-erasable)

Detailed Pin Configuration

1. A14
2. A12
3. A7
4. A6
5. A5
6. A4
7. A3
8. A2
9. A1
10. A0
11. VPP
12. OE#
13. CE#
14. WE#
15. I/O0
16. I/O1
17. I/O2
18. I/O3
19. I/O4
20. I/O5
21. I/O6
22. I/O7
23. VCC
24. GND
25. A8
26. A9
27. A11
28. A10
29. NC
30. NC
31. NC
32. NC

Functional Features

• High-speed access: The chip provides fast access to stored data with an access time of 45 nanoseconds.
• Wide memory size: With a capacity of 512 kilobits, it offers ample storage space for various applications.
• Easy integration: The chip can be easily integrated into existing electronic circuits due to its standard pin configuration.
• Reliable data retention: The non-volatile nature of PROM ensures that the stored data remains intact over extended periods.

Advantages and Disadvantages

Advantages

• Non-volatile storage: Data is retained even without power.
• Fast access time: Allows for quick retrieval of information.
• Easy integration: Standard pin configuration simplifies integration into electronic circuits.

Disadvantages

• Limited write capability: Once programmed, the data cannot be modified or erased.
• Relatively small memory size: May not be suitable for applications requiring large amounts of storage.

Working Principles

AT27C516-45JC operates based on the principle of electrical charge trapping. During programming, specific bits are selectively charged or uncharged, representing the desired data pattern. These charges remain trapped within the memory cells, allowing for non-volatile storage.

Detailed Application Field Plans

AT27C516-45JC finds application in various fields, including: 1. Embedded systems: Used for firmware storage in microcontrollers. 2. Computer systems: Employed for storing BIOS (Basic Input/Output System) code. 3. Consumer electronics: Utilized for storing configuration data in devices such as TVs, DVD players, and gaming consoles.

Detailed and Complete Alternative Models

1. AT27C010-45JC: 1 megabit (128 kilobytes) PROM chip with similar characteristics.
2. AT27C040-90JC: 4 megabit (512 kilobytes) PROM chip with higher storage capacity.
3. AT27LV010A-12JC: 1 megabit low-voltage (3.3V) PROM chip suitable for power-sensitive applications.

(Note: The above alternative models are provided for reference purposes and may vary based on availability and specific requirements.)

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