AT27C1024-45VI

Product Overview

Category

AT27C1024-45VI 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 written and cannot be modified or erased. It is commonly employed in applications where non-volatile memory is required.

Characteristics

• Non-volatile: The stored data remains intact even when power is removed.
• High storage capacity: The AT27C1024-45VI has a capacity of 1,048,576 bits (128 kilobytes).
• Fast access time: The chip operates at a speed of 45 nanoseconds, allowing for quick retrieval of data.
• Low power consumption: The device is designed to consume minimal power during operation.
• Durable: The AT27C1024-45VI is resistant to environmental factors such as temperature and humidity.

Package

The AT27C1024-45VI is available in a 40-pin dual in-line package (DIP), which is a widely used packaging format for integrated circuits.

Essence

The essence of this product lies in its ability to provide reliable and permanent storage of data in electronic systems.

Packaging/Quantity

The AT27C1024-45VI is typically packaged in tubes or trays, with each containing a specific quantity of chips. The exact quantity may vary depending on the manufacturer's specifications.

Specifications

• Memory Type: PROM
• Organization: 128K x 8 bits
• Access Time: 45 ns
• Supply Voltage: 5V
• Operating Temperature Range: -40°C to +85°C
• Pin Count: 40
• Package Type: DIP

Detailed Pin Configuration

The AT27C1024-45VI has a total of 40 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. VSS - Ground
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. VCC - Power Supply 30-40. NC - No Connection

Functional Features

The AT27C1024-45VI offers the following functional features:

• Read-only memory: The chip allows for the retrieval of stored data but does not support write or erase operations.
• High-speed access: With an access time of 45 ns, the device enables quick data retrieval.
• Low power consumption: The chip is designed to operate efficiently with minimal power requirements.
• Reliable storage: The non-volatile nature of the PROM ensures that data remains intact even in the absence of power.

Advantages and Disadvantages

Advantages

• Permanent storage of data
• Fast access time
• Low power consumption
• Durable and resistant to environmental factors

Disadvantages

• Inability to modify or erase stored data
• Limited storage capacity compared to other memory technologies

Working Principles

The AT27C1024-45VI operates based on the principle of electrical charge trapping. During programming, a high voltage is applied to the selected memory cells, causing electrons to be trapped in the floating gate. This trapped charge alters the threshold voltage of the cell, allowing it to retain its state even when power is removed. During read operations, the stored charge is sensed, enabling the retrieval of data.

Detailed Application Field Plans

The AT27C1024-45VI finds applications in various fields where non-volatile memory is required. Some potential application areas include:

1. Embedded Systems: The chip can be used for firmware storage in microcontrollers and other embedded systems.
2. Automotive Electronics: It can be employed in automotive applications such as engine control units (ECUs) and infotainment systems.
3. Industrial Control Systems: The PROM chip can be utilized in industrial automation and control systems for storing critical configuration