AT28C64E-25SI

Product Overview

Category

AT28C64E-25SI belongs to the category of electrically erasable programmable read-only memory (EEPROM).

Use

It is commonly used for non-volatile storage in various electronic devices, such as microcontrollers, computers, and consumer electronics.

Characteristics

• Electrically erasable: The data stored in AT28C64E-25SI can be erased electronically, allowing for easy reprogramming.
• Programmable: It can be programmed multiple times with new data.
• Non-volatile: The stored data remains even when power is removed.
• High-speed operation: AT28C64E-25SI operates at a speed of 250 ns.

Package

AT28C64E-25SI comes in a standard 28-pin Small-Outline Integrated Circuit (SOIC) package.

Essence

The essence of AT28C64E-25SI lies in its ability to provide reliable and non-volatile storage for electronic devices, ensuring data integrity even during power loss or system shutdown.

Packaging/Quantity

AT28C64E-25SI is typically packaged in reels, with each reel containing a quantity of 250 units.

Specifications

• Memory size: 64 kilobits (8 kilobytes)
• Operating voltage: 2.7V - 5.5V
• Access time: 250 ns
• Organization: 8,192 words x 8 bits
• Endurance: 1,000,000 write cycles
• Data retention: 10 years

Detailed Pin Configuration

1. A14
2. A12
3. A7
4. A6
5. A5
6. A4
7. A3
8. A2
9. A1
10. A0
11. /WE
12. /OE
13. VCC
14. NC
15. /CE
16. I/O0
17. I/O1
18. I/O2
19. I/O3
20. I/O4
21. I/O5
22. I/O6
23. I/O7
24. GND
25. A8
26. A9
27. A11
28. A13

Functional Features

• Byte-wise programmable: AT28C64E-25SI allows individual bytes to be programmed or erased, providing flexibility in data manipulation.
• Hardware and software data protection: It offers various methods to protect the stored data from accidental modification or unauthorized access.
• Low power consumption: The device operates at low power, making it suitable for battery-powered applications.

Advantages and Disadvantages

Advantages

• High-speed operation enables quick data access.
• Non-volatile storage ensures data integrity during power loss.
• Flexible programming options allow for easy updates and modifications.
• Multiple data protection mechanisms enhance security.

Disadvantages

• Limited storage capacity compared to other memory technologies.
• Relatively higher cost per bit compared to some alternatives.
• Limited endurance may require careful management of write cycles.

Working Principles

AT28C64E-25SI utilizes a combination of electronic circuits and floating gate transistors to store and retrieve data. When data is written, an electric charge is trapped in the floating gate, altering the transistor's behavior. This charge can be removed during erasure, allowing the transistor to return to its original state. The stored data can be accessed by applying appropriate voltage levels to the address and control pins.

Detailed Application Field Plans

AT28C64E-25SI finds applications in various fields, including: 1. Microcontrollers: Used for storing firmware, configuration data, and calibration values. 2. Computers: Employed in BIOS chips and other non-volatile memory requirements. 3. Consumer electronics: Used for storing user settings, preferences, and small data sets.

Detailed and Complete Alternative Models

1. AT28C64B-15PU: Similar to AT28C64E-25SI but operates at a slower speed of 150 ns.
2. AT28C256-15PI: Offers higher storage capacity of 256 kilobits (32 kilobytes) with a similar operating voltage range.
3. AT29C010A-12PC: Provides larger memory size of 1 megabit (128 kilobytes) with a slightly slower access time of 120 ns.

These alternative models offer different specifications and may be suitable for specific application requirements.

Word count: 550 words