AT28C64X-20SI

Product Overview

Category

AT28C64X-20SI belongs to the category of non-volatile memory devices.

Use

It is primarily used for storing and retrieving digital information in electronic systems.

Characteristics

• Non-volatile: Retains data even when power is removed.
• High capacity: The AT28C64X-20SI has a storage capacity of 64 kilobits (8 kilobytes).
• Fast access time: It operates at a speed of 200 nanoseconds.
• Low power consumption: Designed to minimize power usage.
• Reliable: Offers high endurance and data retention capabilities.
• Easy integration: Compatible with various microcontrollers and electronic systems.

Package

The AT28C64X-20SI is available in a standard 28-pin Small Outline Integrated Circuit (SOIC) package.

Essence

The essence of AT28C64X-20SI lies in its ability to provide reliable and non-volatile storage for digital data in electronic systems.

Packaging/Quantity

The AT28C64X-20SI 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

• Storage Capacity: 64 kilobits (8 kilobytes)
• Access Time: 200 nanoseconds
• Supply Voltage: 2.7V - 5.5V
• Operating Temperature Range: -40°C to +85°C
• Data Retention: 10 years minimum
• Endurance: 1,000,000 write cycles

Detailed Pin Configuration

The AT28C64X-20SI has a total of 28 pins, each serving a specific purpose. 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

Functional Features

The AT28C64X-20SI offers the following functional features:

• Random access: Allows direct access to any memory location.
• Byte-wise programming: Enables individual byte programming.
• Sector erase capability: Supports sector-based erasure for efficient memory management.
• Hardware and software protection: Provides mechanisms to protect data from unauthorized access or modification.
• Low power consumption: Designed to minimize power usage, making it suitable for battery-powered devices.

Advantages and Disadvantages

Advantages

• Non-volatile storage ensures data retention even during power loss.
• High capacity allows for storing a significant amount of digital information.
• Fast access time enables quick retrieval of data.
• Compatibility with various microcontrollers and electronic systems facilitates easy integration.
• Reliable endurance and data retention capabilities ensure long-term usability.

Disadvantages

• Limited storage capacity compared to higher-capacity memory devices.
• Relatively slower access time compared to some modern memory technologies.
• Higher cost per kilobyte compared to certain other memory options.

Working Principles

The AT28C64X-20SI utilizes a technology called Electrically Erasable Programmable Read-Only Memory (EEPROM). It stores digital information by trapping electric charges within its memory cells. These charges represent the binary states of the stored data. The memory cells can be programmed or erased electrically, allowing for data modification when needed. The device operates based on address inputs and control signals received from the connected system, enabling read and write operations.

Detailed Application Field Plans

The AT28C64X-20SI finds applications in various electronic systems that require non-volatile storage, such as:

1. Embedded Systems: Used for storing firmware, configuration data, and critical system parameters.
2. Consumer Electronics: Employed in devices like set-top boxes, gaming consoles, and smart appliances for data storage purposes.
3. Industrial Control Systems: Utilized in programm