AT28C256-15SI

Product Overview

Category

AT28C256-15SI belongs to the category of electrically erasable programmable read-only memory (EEPROM) chips.

Use

The AT28C256-15SI chip is primarily used for non-volatile storage of data in electronic devices. It allows for easy and efficient data storage and retrieval.

Characteristics

• Non-volatile: The stored data remains intact even when power is removed.
• Electrically erasable: The chip can be erased and reprogrammed electronically.
• High storage capacity: The AT28C256-15SI has a storage capacity of 256 kilobits (32 kilobytes).
• Fast access time: The chip has a maximum access time of 150 nanoseconds.

Package

The AT28C256-15SI chip is available in a standard 28-pin plastic dual in-line package (PDIP).

Essence

The essence of the AT28C256-15SI chip lies in its ability to provide reliable and non-volatile storage for electronic devices, ensuring data integrity and ease of use.

Packaging/Quantity

The AT28C256-15SI chip is typically packaged in tubes or trays, with quantities varying based on customer requirements.

Specifications

• Supply voltage: 4.5V to 5.5V
• Operating temperature range: -40°C to +85°C
• Maximum access time: 150 ns
• Endurance: 10,000 write/erase cycles
• Data retention: 100 years

Pin Configuration

The AT28C256-15SI chip has a total of 28 pins. The pin configuration is as follows:

1. A0
2. A1
3. A2
4. A3
5. A4
6. A5
7. A6
8. A7
9. A8
10. A9
11. A10
12. A11
13. A12
14. A13
15. A14
16. A15
17. OE#
18. CE#
19. WE#
20. VCC
21. NC
22. I/O0
23. I/O1
24. I/O2
25. I/O3
26. I/O4
27. I/O5
28. GND

Functional Features

• Easy data storage and retrieval: The AT28C256-15SI chip allows for efficient reading and writing of data.
• High-speed operation: With a maximum access time of 150 ns, the chip ensures fast data access.
• Non-volatile storage: The stored data remains intact even when power is removed.
• Electrically erasable: The chip can be easily erased and reprogrammed electronically.

Advantages and Disadvantages

Advantages

• Non-volatile storage ensures data integrity.
• High storage capacity allows for ample data storage.
• Fast access time enables quick data retrieval.
• Electrically erasable feature provides flexibility in data management.

Disadvantages

• Limited endurance: The chip has a maximum of 10,000 write/erase cycles.
• Relatively higher cost compared to other memory options.

Working Principles

The AT28C256-15SI chip utilizes a combination of electronic circuits and memory cells to store and retrieve data. When data is written, electrical charges are applied to specific memory cells, altering their state. To read the data, the chip detects the state of each memory cell and outputs the corresponding data.

Detailed Application Field Plans

The AT28C256-15SI chip finds applications in various electronic devices, including but not limited to: - Microcontrollers - Embedded systems - Industrial control systems - Automotive electronics - Communication devices

Detailed and Complete Alternative Models

1. AT28C256-12SI: Similar to AT28C256-15SI, but with a maximum access time of 120 ns.
2. AT28C256-20SI: Similar to AT28C256-15SI, but with a maximum access time of 200 ns.
3. AT28C256-25SI: Similar to AT28C256-15SI, but with a maximum access time of 250 ns.

These alternative models provide options with different access times to suit specific application requirements.

In conclusion, the AT28C256-15SI chip is a reliable and efficient EEPROM chip that offers non-volatile storage, fast access times, and high storage capacity. Its applications span across various electronic devices, making it a versatile choice for data storage needs.