AT28HC64BF-90JU

Product Overview

Category

AT28HC64BF-90JU belongs to the category of high-speed, low-power Electrically Erasable Programmable Read-Only Memory (EEPROM) chips.

Use

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

Characteristics

• High-speed operation: The AT28HC64BF-90JU offers fast read and write access times, making it suitable for applications requiring quick data retrieval.
• Low power consumption: This EEPROM chip is designed to minimize power usage, making it ideal for battery-powered devices.
• Large storage capacity: With a capacity of 64 kilobits (8 kilobytes), this chip provides ample space for storing critical data.
• Reliable data retention: The AT28HC64BF-90JU ensures data integrity with its excellent endurance and long-term data retention capabilities.

Package

The AT28HC64BF-90JU comes in a standard 32-pin PLCC (Plastic Leaded Chip Carrier) package. This package type offers good thermal performance and ease of handling during assembly.

Essence

The essence of the AT28HC64BF-90JU lies in its ability to provide reliable and efficient non-volatile data storage in a compact form factor.

Packaging/Quantity

This product is typically packaged in reels or tubes, with each containing a specific quantity of AT28HC64BF-90JU chips. The exact quantity may vary depending on the manufacturer's specifications and customer requirements.

Specifications

• Operating voltage: 2.7V to 5.5V
• Access time: 90 nanoseconds
• Organization: 8K x 8 bits
• Interface: Serial I2C
• Write endurance: 1,000,000 cycles
• Data retention: 10 years

Detailed Pin Configuration

The AT28HC64BF-90JU features a 32-pin PLCC package with the following pin configuration:

1. A0
2. A1
3. A2
4. A3
5. A4
6. A5
7. A6
8. A7
9. VSS (Ground)
10. NC (No Connection)
11. NC
12. NC
13. WP (Write Protect)
14. SDA (Serial Data)
15. SCL (Serial Clock)
16. VCC (Power)
17. NC
18. NC
19. NC
20. NC
21. NC
22. NC
23. NC
24. NC
25. NC
26. NC
27. NC
28. NC
29. NC
30. NC
31. NC
32. NC

Functional Features

• Byte-level read and write operations: The AT28HC64BF-90JU allows individual bytes to be read from or written to, providing flexibility in data manipulation.
• Hardware write protection: The WP pin can be used to protect the stored data from accidental modification by disabling write operations.
• I2C interface: This chip utilizes the popular I2C communication protocol, enabling easy integration into various systems.
• High reliability: With its robust design and advanced error correction techniques, the AT28HC64BF-90JU ensures reliable data storage and retrieval.

Advantages and Disadvantages

Advantages

• Fast access times enable quick data retrieval.
• Low power consumption prolongs battery life in portable devices.
• Ample storage capacity for various applications.
• Reliable data retention ensures long-term usability.
• Easy integration with I2C interface.

Disadvantages

• Limited storage capacity compared to other memory technologies.
• Higher cost per bit compared to larger capacity EEPROMs.

Working Principles

The AT28HC64BF-90JU operates based on the principles of EEPROM technology. It utilizes a combination of electrically controlled floating gate transistors and charge storage mechanisms to store and retrieve data. When a write operation is performed, an electrical charge is applied to the floating gate, altering its state and storing the desired data. During read operations, the stored charge is sensed and converted back into digital data.

Detailed Application Field Plans

The AT28HC64BF-90JU finds applications in various fields, including:

1. Microcontrollers: Used for storing firmware, configuration data, and calibration parameters.
2. Computers: Employed in BIOS chips, expansion cards, and embedded systems for non-volatile storage.
3. Consumer Electronics: Utilized in devices such as smart TVs, set-top boxes, and gaming consoles for data storage and firmware updates.
4. Automotive: Integrated into electronic control units (ECUs) for storing critical vehicle data and firmware.

Detailed and Complete Alternative Models

1. AT28C