AT28BV256-20SC

Product Overview

Category

AT28BV256-20SC belongs to the category of non-volatile memory devices.

Use

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

Characteristics

• Non-volatile: Retains data even when power is turned off.
• High capacity: Offers a storage capacity of 256 kilobits.
• Low power consumption: Operates with low power requirements.
• Fast access time: Provides quick data retrieval.

Package

AT28BV256-20SC is available in a small outline integrated circuit (SOIC) package.

Essence

The essence of AT28BV256-20SC lies in its ability to store and retain data reliably, making it an essential component in various electronic devices.

Packaging/Quantity

This product is typically packaged in reels or tubes, with each containing a specific quantity of AT28BV256-20SC chips.

Specifications

• Memory Capacity: 256 kilobits
• Operating Voltage: 2.7V - 5.5V
• Access Time: 200 nanoseconds
• Operating Temperature Range: -40°C to +85°C
• Data Retention: 10 years
• Interface: Parallel

Detailed Pin Configuration

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. A8: Address Input
10. A9: Address Input
11. A10: Address Input
12. A11: Address Input
13. A12: Address Input
14. A13: Address Input
15. A14: Address Input
16. A15: Address Input
17. /OE: Output Enable
18. /WE: Write Enable
19. /CE: Chip Enable
20. VCC: Power Supply
21. GND: Ground
22. DQ0: Data Input/Output
23. DQ1: Data Input/Output
24. DQ2: Data Input/Output
25. DQ3: Data Input/Output
26. DQ4: Data Input/Output
27. DQ5: Data Input/Output
28. DQ6: Data Input/Output
29. DQ7: Data Input/Output

Functional Features

• Random Access: Allows data to be read from or written to any address location.
• Byte-Writable: Enables individual bytes to be written without affecting the entire memory.
• Erasable: Supports erasing of the entire memory or specific sectors.
• Hardware and Software Protection: Provides mechanisms to protect data from unauthorized access or modification.

Advantages and Disadvantages

Advantages

• Non-volatile nature ensures data retention even during power loss.
• High storage capacity for various applications.
• Low power consumption prolongs battery life in portable devices.
• Fast access time allows for quick data retrieval.

Disadvantages

• Limited write endurance compared to other memory technologies.
• Relatively higher cost per bit compared to volatile memory options.
• Requires additional circuitry for interfacing with microcontrollers or processors.

Working Principles

AT28BV256-20SC utilizes a combination of electronic circuits and semiconductor technology to store and retrieve data. It employs a parallel interface to communicate with external devices, allowing for efficient data transfer.

The memory cells within AT28BV256-20SC are based on electrically erasable programmable read-only memory (EEPROM) technology. These cells can be individually programmed or erased using specific voltage levels and control signals.

Detailed Application Field Plans

AT28BV256-20SC finds applications in various electronic systems, including but not limited to: - Embedded systems - Consumer electronics - Automotive electronics - Industrial control systems - Communication devices

Its ability to retain data without power makes it suitable for applications requiring non-volatile storage, such as firmware storage, configuration data, and parameter settings.

Detailed and Complete Alternative Models

1. AT28C256: Similar capacity and functionality, but with a different package.
2. AT29C256: Flash memory alternative with higher write endurance.
3. 25LC256: Serial EEPROM option with smaller form factor.

These alternative models offer similar capabilities to AT28BV256-20SC, providing flexibility in choosing the most suitable memory device for specific applications.

In conclusion, AT28BV256-20SC is a non-volatile memory device with a high storage capacity of 256 kilobits. It offers fast access times, low power consumption, and reliable data retention. While it has limitations in terms of write endurance and cost per bit, its functional features and wide range