AT28C256-25FM/883

Product Overview

Category

AT28C256-25FM/883 belongs to the category of non-volatile memory devices.

Use

This product is primarily used for storing and retrieving digital information in electronic systems.

Characteristics

• Non-volatile: The stored data remains intact even when power is removed.
• High capacity: The AT28C256-25FM/883 has a storage capacity of 256 kilobits (32 kilobytes).
• Fast access time: It operates at a speed of 250 nanoseconds, allowing for quick data retrieval.
• Low power consumption: The device is designed to minimize power usage, making it suitable for battery-powered applications.

Package

The AT28C256-25FM/883 is available in a 28-pin ceramic dual in-line package (DIP).

Essence

The essence of this product lies in its ability to provide reliable and non-volatile storage for electronic systems.

Packaging/Quantity

The AT28C256-25FM/883 is typically packaged in tubes or trays, with each package containing a specified quantity of devices.

Specifications

• Operating voltage: 5V
• Access time: 250 ns
• Organization: 32K x 8 bits
• Endurance: 10,000 write cycles
• Data retention: 10 years
• Temperature range: -55°C to +125°C

Pin Configuration

The AT28C256-25FM/883 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. VCC
10. OE#
11. CE#
12. WE#
13. I/O0
14. I/O1
15. I/O2
16. I/O3
17. I/O4
18. I/O5
19. I/O6
20. I/O7
21. NC
22. GND
23. NC
24. NC
25. NC
26. NC
27. NC
28. NC

Functional Features

• Byte-wide access: The AT28C256-25FM/883 allows for individual byte-level read and write operations.
• Hardware and software data protection: It provides mechanisms to prevent accidental modification or erasure of stored data.
• High reliability: The device is designed to withstand harsh environmental conditions, ensuring data integrity.

Advantages and Disadvantages

Advantages

• Non-volatile storage: Data remains intact even during power loss.
• High capacity: Ample storage space for various applications.
• Fast access time: Quick retrieval of stored information.
• Low power consumption: Suitable for battery-powered devices.

Disadvantages

• Limited endurance: The device has a finite number of write cycles.
• Relatively high cost compared to other memory technologies.

Working Principles

The AT28C256-25FM/883 utilizes electrically erasable and programmable read-only memory (EEPROM) technology. It stores data by trapping electrical charges in floating gate transistors. These charges can be selectively removed or added using specific voltage levels, allowing for both erasing and writing operations.

Detailed Application Field Plans

The AT28C256-25FM/883 finds applications in various fields, including: - Embedded systems - Automotive electronics - Industrial control systems - Communication devices - Medical equipment

Alternative Models

Some alternative models that offer similar functionality to the AT28C256-25FM/883 include: - AT28C256-12PC - AT28C256-15PC - AT28C256-20PC - AT28C256-30PC

These models differ in terms of access time, temperature range, and other specifications, providing options to suit different requirements.

In conclusion, the AT28C256-25FM/883 is a non-volatile memory device with high capacity, fast access time, and low power consumption. It finds applications in various fields and offers reliable data storage for electronic systems.