AT27C1024-70PU

Product Overview

Category

AT27C1024-70PU 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 storage capabilities, 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 AT27C1024-70PU has a capacity of 1,048,576 bits (128 kilobytes).
• Fast access time: With a speed rating of 70 nanoseconds, it ensures quick retrieval of data.
• Low power consumption: The chip operates efficiently, minimizing power requirements.
• Durable: Designed to withstand harsh environmental conditions and provide long-term reliability.

Package

The AT27C1024-70PU is available in a plastic dual in-line package (PDIP). This package type offers ease of handling and compatibility with standard socket connectors.

Essence

The essence of this product lies in its ability to store and retrieve data reliably, providing a secure and permanent storage solution for electronic devices.

Packaging/Quantity

The AT27C1024-70PU is typically packaged in tubes or trays, containing multiple units per package. The exact quantity may vary depending on the supplier.

Specifications

• Capacity: 1,048,576 bits (128 kilobytes)
• Access Time: 70 nanoseconds
• Operating Voltage: 5V
• Operating Temperature Range: -40°C to +85°C
• Package Type: Plastic Dual In-Line Package (PDIP)

Detailed Pin Configuration

The AT27C1024-70PU features a total of 32 pins, each serving a specific function. The pin configuration is as follows:

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/Input
22. DQ1 - Data Output/Input
23. DQ2 - Data Output/Input
24. DQ3 - Data Output/Input
25. DQ4 - Data Output/Input
26. DQ5 - Data Output/Input
27. DQ6 - Data Output/Input
28. DQ7 - Data Output/Input
29. NC - No Connection
30. GND - Ground
31. NC - No Connection
32. NC - No Connection

Functional Features

The AT27C1024-70PU offers the following functional features:

• Read Operation: The chip allows for fast and reliable retrieval of stored data.
• Write Protection: It provides write protection to prevent accidental modification or erasure of data.
• High-Speed Access: With a low access time, it ensures efficient data retrieval in real-time applications.
• Low Power Consumption: The chip operates with minimal power requirements, conserving energy.

Advantages and Disadvantages

Advantages

• Non-volatile storage: Ensures data integrity even during power loss.
• High capacity: Offers ample storage space for various applications.
• Fast access time: Enables quick retrieval of data.
• Durable design: Withstands harsh environmental conditions.

Disadvantages

• Limited write capability: The chip does not support rewriting or modifying stored data.
• Higher cost compared to other memory technologies.

Working Principles

The AT27C1024-70PU operates based on the principle of electrical charge trapping. It uses a grid of transistors to store binary data in the form of electrical charges. These charges represent the "1" or "0" states, which can be read by the device when required. The chip's circuitry ensures that the stored data remains intact even without a continuous power supply.

Detailed Application Field Plans

The AT27C1024-70PU finds application in various electronic devices and systems, including but not limited to:

1. Embedded Systems: Used for firmware storage in microcontrollers and microprocessors.
2. Automotive Electronics: Provides permanent storage for critical data in automotive control units.
3. Industrial Control Systems: Used for storing configuration data and program code in industrial automation