AT27C1024-15VI

Product Overview

Category

AT27C1024-15VI belongs to the category of programmable read-only memory (PROM) chips.

Use

This product is commonly used in electronic devices for storing permanent data that cannot be modified or erased. It provides non-volatile memory storage, making it ideal for applications where data integrity is crucial.

Characteristics

• Non-volatile: The stored data remains intact even when power is removed.
• High capacity: The AT27C1024-15VI has a capacity of 1,048,576 bits (128 kilobytes).
• Fast access time: The chip operates at a speed of 150 nanoseconds, allowing for quick retrieval of data.
• Low power consumption: It requires minimal power to operate efficiently.
• Durable: The chip is designed to withstand harsh environmental conditions.

Package and Quantity

The AT27C1024-15VI is available in a 40-pin dual in-line package (DIP). Each package contains one chip.

Specifications

• Capacity: 1,048,576 bits (128 kilobytes)
• Access Time: 150 nanoseconds
• Operating Voltage: 5 volts
• Operating Temperature Range: -40°C to +85°C
• Package Type: 40-pin DIP

Pin Configuration

The AT27C1024-15VI has a total of 40 pins. Here is the detailed pin configuration:

1. A0 - Address Input
2. A1 - Address Input
3. A2 - Address Input
4. A3 - Address Input
5. A4 - Address Input
6. A5 - Address Input
7. A6 - Address Input
8. A7 - Address Input
9. A8 - Address Input
10. A9 - Address Input
11. A10 - Address Input
12. A11 - Address Input
13. A12 - Address Input
14. A13 - Address Input
15. A14 - Address Input
16. A15 - Address Input
17. /OE - Output Enable
18. /CE - Chip Enable
19. /WE - Write Enable
20. VCC - Power Supply
21. DQ0 - Data Output
22. DQ1 - Data Output
23. DQ2 - Data Output
24. DQ3 - Data Output
25. DQ4 - Data Output
26. DQ5 - Data Output
27. DQ6 - Data Output
28. DQ7 - Data Output
29. VSS - Ground
30. NC - No Connection
31. NC - No Connection
32. NC - No Connection
33. NC - No Connection
34. NC - No Connection
35. NC - No Connection
36. NC - No Connection
37. NC - No Connection
38. NC - No Connection
39. NC - No Connection
40. NC - No Connection

Functional Features

• Read-only memory: The AT27C1024-15VI allows for the retrieval of stored data but does not support writing or erasing operations.
• High-speed access: With an access time of 150 nanoseconds, it enables quick data retrieval.
• Low power consumption: The chip operates efficiently with minimal power requirements.
• Reliable data storage: The non-volatile nature of PROM ensures data integrity and durability.

Advantages and Disadvantages

Advantages

• Non-volatile memory ensures data retention even during power loss.
• High capacity allows for storing a large amount of permanent data.
• Fast access time enables quick retrieval of information.
• Low power consumption reduces energy usage.

Disadvantages

• Inability to modify or erase stored data limits its flexibility.
• Limited functionality compared to other types of memory chips.
• Relatively higher cost per bit compared to other memory technologies.

Working Principles

The AT27C1024-15VI operates based on the principle of electrical charge trapping. The data is stored in a grid of memory cells, with each cell representing a bit. During programming, electrical charges are trapped in specific cells to represent the desired data. These charges remain intact even when power is removed, allowing for non-volatile storage.

During read operations, the addressed memory cell's charge state is detected, and the corresponding data is retrieved. However, writing or erasing operations are not supported by this chip.

Application Field Plans

The AT27C1024-15VI finds applications in various electronic devices that require permanent data storage. Some common application fields include:

1. Embedded Systems: Used in microcontrollers and embedded systems to store firmware, boot code, and configuration data.
2. Automotive Electronics: Employed in automotive systems for storing critical data such as engine parameters, calibration settings, and diagnostic information.
3. Industrial Control