AT27C2048-55VI

Product Overview

Category

AT27C2048-55VI 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 AT27C2048-55VI has a capacity of 2,048 kilobits (256 kilobytes).
• Fast access time: With a speed rating of 55 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 reliable performance.

Package

The AT27C2048-55VI is available in a standard 28-pin dual in-line package (DIP), which is widely used in the electronics industry.

Essence

The essence of this product lies in its ability to store large amounts of data reliably and securely, ensuring long-term data retention without the risk of accidental modification or erasure.

Packaging/Quantity

The AT27C2048-55VI is typically packaged in reels or tubes, with each package containing a specified quantity of chips. The exact packaging and quantity may vary depending on the manufacturer and customer requirements.

Specifications

• Capacity: 2,048 kilobits (256 kilobytes)
• Access Time: 55 nanoseconds
• Supply Voltage: 5 volts
• Operating Temperature Range: -40°C to +85°C
• Data Retention: More than 20 years
• Programming Method: One-time programmable (OTP)

Detailed Pin Configuration

The AT27C2048-55VI has a total of 28 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

Functional Features

The AT27C2048-55VI offers the following functional features:

• High-speed data access: The chip allows for fast retrieval of stored data.
• One-time programmable: Once programmed, the data cannot be modified or erased, ensuring data integrity.
• Low power consumption: The chip operates efficiently, minimizing power requirements.
• Reliable performance: Designed to withstand environmental stress and provide long-term data retention.

Advantages and Disadvantages

Advantages

• Large storage capacity
• Fast access time
• Non-volatile data storage
• Durable and reliable performance
• Low power consumption

Disadvantages

• One-time programmable, cannot be modified or erased after programming
• Relatively higher cost compared to other memory technologies

Working Principles

The AT27C2048-55VI operates based on the principle of electrical charge trapping. The data is stored in a matrix of memory cells, with each cell representing a bit of information. When a specific address is accessed, the corresponding memory cell's state is read and output as data.

Detailed Application Field Plans

The AT27C2048-55VI finds applications in various fields, including:

1. Embedded Systems: Used for firmware storage in microcontrollers and other embedded devices.
2. Automotive Electronics: Employed for storing critical data in automotive systems such as engine control units (ECUs) and infotainment systems.
3. Industrial Control Systems: Utilized for program storage in industrial automation and control systems.
4. Medical Devices: Used for storing firmware and configuration data in medical equipment.
5. Consumer Electronics: Employed in devices like gaming consoles, set-top boxes, and digital cameras for non-volatile data storage.

Detailed and Complete Alternative Models

Some alternative models