AT28BV256-20JU

Product Overview

Category

AT28BV256-20JU 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 storage capacity: 256 kilobits (32 kilobytes).
• Low power consumption: Operates at a low voltage.
• Fast access time: 20 nanoseconds.

Package

AT28BV256-20JU is available in a standard 32-pin PLCC package.

Essence

The essence of AT28BV256-20JU lies in its ability to provide reliable and non-volatile data storage in various electronic applications.

Packaging/Quantity

This product is typically sold in reels, with each reel containing a specific quantity of AT28BV256-20JU chips. The exact quantity may vary depending on the manufacturer's specifications.

Specifications

• Memory Size: 256 kilobits (32 kilobytes)
• Operating Voltage: 2.7V - 5.5V
• Access Time: 20 ns
• Organization: 32K x 8 bits
• Interface: Parallel
• Data Retention: 10 years
• Erase/Write Cycle Endurance: 10,000 cycles

Detailed Pin Configuration

The AT28BV256-20JU has a total of 32 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. 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. CE - Chip Enable
19. WE - Write Enable
20. I/O0 - Data Input/Output
21. I/O1 - Data Input/Output
22. I/O2 - Data Input/Output
23. I/O3 - Data Input/Output
24. I/O4 - Data Input/Output
25. I/O5 - Data Input/Output
26. I/O6 - Data Input/Output
27. I/O7 - Data Input/Output
28. VCC - Power Supply
29. GND - Ground
30. NC - No Connection
31. NC - No Connection
32. NC - No Connection

Functional Features

• Non-volatile storage: The AT28BV256-20JU retains data even when power is turned off, making it suitable for applications requiring persistent memory.
• High-speed access: With an access time of 20 ns, this device allows for fast read and write operations.
• Low power consumption: The AT28BV256-20JU operates at a low voltage, minimizing power consumption in electronic systems.

Advantages and Disadvantages

Advantages

• Non-volatile memory ensures data retention even during power loss.
• High storage capacity allows for storing large amounts of data.
• Fast access time enables quick retrieval and modification of stored information.
• Low power consumption makes it suitable for battery-powered devices.

Disadvantages

• Limited erase/write cycle endurance compared to some other non-volatile memory technologies.
• Relatively larger physical package size compared to newer memory technologies.

Working Principles

The AT28BV256-20JU is based on Flash memory technology. It utilizes a grid of memory cells, where each cell can store one bit of information. The data is stored by trapping electric charges within the memory cells, which can be accessed and modified through specific address and control signals.

Detailed Application Field Plans

The AT28BV256-20JU finds applications in various electronic systems that require non-volatile storage. Some common application fields include: - Embedded systems - Consumer electronics - Industrial automation - Automotive electronics - Medical devices

Detailed and Complete Alternative Models

• AT28C256: Similar capacity and functionality, but with slower access time.
• AT29C256: Similar capacity and functionality, but with different pin configuration.
• AT45DB256: Offers higher storage capacity and additional features like data protection and security.

These alternative models provide similar functionality to the AT28BV256-20JU, but may have differences in specifications and pin configurations.

In conclusion, the AT28BV256-20JU is a non