AT28HC64B-90SA

Product Overview

Category

AT28HC64B-90SA 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 is retained even when power is removed.
• High capacity: The AT28HC64B-90SA has a storage capacity of 64 kilobits (8 kilobytes).
• High-speed operation: It operates at a speed of 90 nanoseconds, allowing for fast data access.
• Low power consumption: The device is designed to minimize power usage, making it suitable for battery-powered applications.

Package

The AT28HC64B-90SA is available in a small outline package (SOIC) format. This package offers compactness and ease of integration into various electronic systems.

Essence

The essence of this product lies in its ability to provide reliable and non-volatile storage for digital data in a compact form factor.

Packaging/Quantity

The AT28HC64B-90SA is typically packaged in reels or tubes, with each containing a specific quantity of devices. The exact packaging and quantity may vary depending on the supplier.

Specifications

• Storage Capacity: 64 kilobits (8 kilobytes)
• Access Time: 90 nanoseconds
• Operating Voltage: 2.7V - 5.5V
• Operating Temperature Range: -40°C to +85°C
• Data Retention: 10 years

Detailed Pin Configuration

The AT28HC64B-90SA has a total of 28 pins, which are assigned specific functions. 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. GND - Ground
23. NC - No Connection
24. NC - No Connection
25. NC - No Connection
26. NC - No Connection
27. NC - No Connection
28. NC - No Connection

Functional Features

• Random Access: The AT28HC64B-90SA allows for random access to any location within its storage capacity, enabling efficient data retrieval.
• High Reliability: This product offers high reliability in terms of data retention and endurance, ensuring the integrity of stored information.
• Low Power Consumption: The device is designed to operate with minimal power consumption, making it suitable for battery-powered applications.
• Easy Integration: The small outline package (SOIC) format facilitates easy integration into various electronic systems.

Advantages and Disadvantages

Advantages

• Non-volatile memory ensures data retention even during power loss.
• High storage capacity for storing a significant amount of digital information.
• Fast access time enables quick retrieval of data.
• Low power consumption extends battery life in portable devices.
• Compact package allows for easy integration into electronic systems.

Disadvantages

• Limited storage capacity compared to other memory devices.
• Relatively slower access time compared to some modern memory technologies.

Working Principles

The AT28HC64B-90SA is based on Electrically Erasable Programmable Read-Only Memory (EEPROM) technology. It utilizes a grid of memory cells, where each cell can store a single bit of information. The data can be written or erased electrically using specific control signals. During operation, the device receives address inputs to select the desired memory location and control signals to enable reading or writing operations.

Detailed Application Field Plans

The AT28HC64B-90SA finds applications in various electronic systems that require non-volatile storage for digital information. Some common application fields include:

1. Embedded Systems: Used for storing firmware, configuration data, and calibration parameters in microcontrollers and other embedded devices.
2. Communication Systems: Employed for storing network settings, encryption keys, and user profiles in routers, modems, and communication modules.
3. Automotive Electronics: Utilized for storing vehicle-specific data, such as engine parameters, sensor calibration, and diagnostic information in