AT28C64E-25JI

Product Overview

Category

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

Use

This product is commonly used for storing and retrieving data in electronic devices. It provides non-volatile memory storage, allowing information to be retained even when power is removed.

Characteristics

• Electrically erasable: The AT28C64E-25JI can be erased and reprogrammed electronically, making it convenient for updating or modifying stored data.
• High capacity: With a capacity of 64 kilobits (8 kilobytes), this EEPROM chip offers ample storage space for various applications.
• Low power consumption: The AT28C64E-25JI operates efficiently, consuming minimal power during read and write operations.
• Fast access time: This chip has a fast access time of 250 nanoseconds, enabling quick retrieval of stored data.

Package

The AT28C64E-25JI is available in a 32-pin plastic J-leaded chip carrier (PLCC) package. This package ensures easy integration into circuit boards and provides protection for the internal components.

Essence

The essence of the AT28C64E-25JI lies in its ability to provide reliable and flexible non-volatile memory storage for electronic devices.

Packaging/Quantity

This product is typically packaged in reels or tubes, with each containing a specific quantity of AT28C64E-25JI chips. The exact quantity may vary depending on the manufacturer's specifications and customer requirements.

Specifications

• Memory Capacity: 64 kilobits (8 kilobytes)
• Access Time: 250 nanoseconds
• Supply Voltage: 2.7V - 5.5V
• Operating Temperature Range: -40°C to +85°C
• Data Retention: 10 years

Detailed Pin Configuration

The AT28C64E-25JI chip has a total of 32 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. NC
23. NC
24. NC
25. NC
26. NC
27. NC
28. NC
29. GND
30. NC
31. NC
32. NC

Functional Features

• Byte-wise programmable: The AT28C64E-25JI allows individual bytes to be programmed or erased, providing flexibility in data manipulation.
• Hardware and software protection: This chip offers various protection mechanisms to prevent accidental modification or unauthorized access to stored data.
• High reliability: With advanced error correction techniques and endurance, the AT28C64E-25JI ensures reliable data storage and retrieval.

Advantages and Disadvantages

Advantages

• Electrically erasable and reprogrammable
• High storage capacity
• Low power consumption
• Fast access time
• Reliable data retention

Disadvantages

• Limited write endurance (typically around 100,000 cycles)
• Relatively higher cost compared to other memory technologies

Working Principles

The AT28C64E-25JI utilizes a combination of electronic circuits and memory cells to store and retrieve data. When data needs to be written, the chip applies a specific voltage to the memory cells, altering their state. To read data, the chip detects the voltage levels in the memory cells and converts them into digital information.

Detailed Application Field Plans

The AT28C64E-25JI finds applications in various electronic devices and systems, including but not limited to: - Embedded systems - Microcontrollers - Industrial control systems - Automotive electronics - Communication equipment

Detailed and Complete Alternative Models

1. AT28C64B-15PU: Similar to AT28C64E-25JI, this model offers a lower access time of 150 nanoseconds.
2. AT28C256-15PU: This alternative provides a higher capacity of 256 kilobits (32 kilobytes) for applications requiring more storage space.
3. AT28HC256-12PC: With a wider operating temperature range (-40°C to +125°C), this model is suitable for extreme temperature environments.

These alternative models offer similar functionality to the AT28C64E-25JI but may have different specifications or features that cater to specific application requirements.

In conclusion,