AT28C64-25JI

Product Overview

Category

AT28C64-25JI belongs to the category of electrically erasable programmable read-only memory (EEPROM) chips.

Use

This product is primarily used for non-volatile storage of digital data in various electronic devices such as microcontrollers, computers, and consumer electronics.

Characteristics

• Non-volatile: The stored data remains intact even when power is removed.
• Electrically erasable: The memory can be erased and reprogrammed electronically.
• High capacity: The AT28C64-25JI has a capacity of 64 kilobits (8 kilobytes).
• Fast access time: The chip operates at a speed of 250 nanoseconds.

Package

The AT28C64-25JI is available in a 32-pin plastic J-leaded chip carrier (PLCC) package.

Essence

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

Packaging/Quantity

The AT28C64-25JI is typically packaged in reels or tubes, with each containing a specific quantity of chips. The exact packaging and quantity may vary depending on the supplier.

Specifications

• Memory Capacity: 64 kilobits (8 kilobytes)
• Access Time: 250 nanoseconds
• Supply Voltage: 5 volts
• Operating Temperature Range: -40°C to +85°C
• Data Retention: 10 years

Detailed Pin Configuration

The AT28C64-25JI has a total of 32 pins. 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. VCC - Power Supply
10. OE - Output Enable
11. CE - Chip Enable
12. WE - Write Enable
13. I/O0 - Data Input/Output
14. I/O1 - Data Input/Output
15. I/O2 - Data Input/Output
16. I/O3 - Data Input/Output
17. I/O4 - Data Input/Output
18. I/O5 - Data Input/Output
19. I/O6 - Data Input/Output
20. I/O7 - Data Input/Output
21. NC - No Connection
22. NC - No Connection
23. NC - No Connection
24. GND - Ground
25. A8 - Address Input
26. A9 - Address Input
27. A10 - Address Input
28. A11 - Address Input
29. A12 - Address Input
30. A13 - Address Input
31. A14 - Address Input
32. A15 - Address Input

Functional Features

• High-speed operation: The AT28C64-25JI offers fast access times, allowing for efficient data retrieval and storage.
• Low power consumption: This chip is designed to minimize power usage, making it suitable for battery-powered devices.
• Easy integration: The AT28C64-25JI can be easily integrated into existing electronic systems due to its standard pin configuration and compatibility with common interfaces.
• Reliable data retention: The stored data remains intact for up to 10 years, ensuring long-term reliability.

Advantages and Disadvantages

Advantages

• Non-volatile storage: The AT28C64-25JI retains data even when power is removed, providing reliable storage for critical information.
• Electrically erasable: The ability to erase and reprogram the memory electronically allows for flexibility in data storage and updates.
• High capacity: With a capacity of 64 kilobits, this chip can store a significant amount of data.
• Fast access time: The AT28C64-25JI operates at a speed of 250 nanoseconds, enabling quick data retrieval.

Disadvantages

• Limited storage capacity: While suitable for many applications, the 8-kilobyte capacity may not be sufficient for certain high-volume data storage requirements.
• Relatively slower compared to newer technologies: Although the access time is fast, newer memory technologies offer even faster performance.

Working Principles

The AT28C64-25JI utilizes a combination of electronic circuits and memory cells to store and retrieve digital data. When powered on, the chip enables the reading or writing of data based on the control signals received through its pins. The stored data remains intact even when power is removed due to the non-volatile nature of EEPROM technology.

Detailed Application Field Plans

The AT28C64-25JI finds application in various fields, including:

1. Microcontrollers: Used for storing