AT27C1024-12PI

Product Overview

Category

AT27C1024-12PI 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 density: The AT27C1024-12PI has a capacity of 1,048,576 bits (128K x 8).
• Fast access time: With a speed rating of 120 nanoseconds, it ensures quick retrieval of data.
• Low power consumption: Designed to operate efficiently with minimal power requirements.

Package

The AT27C1024-12PI comes in a 40-pin DIP (Dual In-line Package) format. This package type is widely used and allows for easy integration into various electronic systems.

Essence

The essence of the AT27C1024-12PI lies in its ability to provide reliable and secure storage of data in electronic devices. Its non-volatile nature ensures that critical information remains intact, even during power outages or system failures.

Packaging/Quantity

The AT27C1024-12PI is typically packaged in tubes or trays, with each containing a specific quantity of chips. The exact packaging and quantity may vary depending on the manufacturer's specifications.

Specifications

• Capacity: 1,048,576 bits (128K x 8)
• Access Time: 120 nanoseconds
• Supply Voltage: 5V
• Operating Temperature Range: -40°C to +85°C
• Data Retention: 10 years

Detailed Pin Configuration

The AT27C1024-12PI features a 40-pin DIP package with the following pin configuration:

1. A0
2. A1
3. A2
4. A3
5. A4
6. A5
7. A6
8. A7
9. VPP
10. A8
11. A9
12. A10
13. A11
14. /OE (Output Enable)
15. /WE (Write Enable)
16. NC (No Connection)
17. I/O0
18. I/O1
19. I/O2
20. I/O3
21. I/O4
22. I/O5
23. I/O6
24. I/O7
25. VCC
26. GND
27. NC
28. NC
29. NC
30. NC
31. NC
32. NC
33. NC
34. NC
35. NC
36. NC
37. NC
38. NC
39. NC
40. NC

Functional Features

• Easy integration: The AT27C1024-12PI can be easily connected to microcontrollers or other electronic devices using standard interface protocols.
• High-speed operation: With a fast access time of 120 nanoseconds, it ensures efficient data retrieval.
• Reliable data storage: The non-volatile nature of PROM ensures that stored data remains intact, even in harsh environmental conditions.
• Low power consumption: Designed to operate with minimal power requirements, making it suitable for battery-powered devices.

Advantages and Disadvantages

Advantages

• Non-volatile memory ensures data integrity.
• High-density storage capacity.
• Fast access time for quick data retrieval.
• Low power consumption.

Disadvantages

• Data cannot be modified or erased once programmed.
• Limited storage capacity compared to other memory technologies.
• Relatively higher cost per bit compared to other memory options.

Working Principles

The AT27C1024-12PI operates based on the principle of electrical programming. The data is programmed into the memory cells during the manufacturing process using a specific voltage and timing sequence. Once programmed, the data remains stored in the memory cells until power is removed.

During operation, the /OE (Output Enable) pin enables the output data from the chip, while the /WE (Write Enable) pin controls the write operation. When /OE is active low and /WE is active high, the chip outputs the stored data. In contrast, when /OE is inactive or /WE is active low, the chip enters a standby mode, consuming minimal power.

Detailed Application Field Plans

The AT27C1024-12PI finds applications in various electronic devices and systems, including but not limited to:

1. Embedded Systems: Used for firmware storage in microcontrollers and other embedded systems.
2. Automotive Electronics: Provides secure storage for critical data in automotive applications such as engine control units (ECUs) and infotainment systems.
3. Industrial Control Systems: Used for storing