AT28BV256-20JI

Product Overview

Category

AT28BV256-20JI 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 turned off.
• High capacity: Offers a storage capacity of 256 kilobits.
• Low power consumption: Operates at low power levels, making it suitable for battery-powered devices.
• Fast access time: Provides quick access to stored data.
• Reliable: Ensures data integrity through various error correction techniques.

Package

AT28BV256-20JI is available in a standard JEDEC-approved PLCC package.

Essence

The essence of AT28BV256-20JI lies in its ability to provide reliable and non-volatile storage for digital information in electronic systems.

Packaging/Quantity

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

Specifications

• Operating voltage: 2.7V - 3.6V
• Access time: 200ns
• Organization: 32K x 8 bits
• Interface: Parallel
• Erase/write cycles: 10,000 minimum
• Data retention: 20 years minimum

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. 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

Functional Features

• Byte-wide access: Allows individual bytes to be read or written independently.
• Page mode operation: Enables faster consecutive byte accesses within a page boundary.
• Software and hardware protection: Provides mechanisms to prevent unauthorized access or modification of data.
• Automatic sleep mode: Reduces power consumption when the device is idle.
• Built-in error correction: Detects and corrects bit errors during read operations.

Advantages and Disadvantages

Advantages

• Non-volatile storage ensures data retention even in the absence of power.
• High capacity allows for storing a significant amount of digital information.
• Low power consumption makes it suitable for battery-powered devices.
• Fast access time enables quick retrieval of stored data.
• Reliable data integrity through error correction techniques.

Disadvantages

• Limited erase/write cycles may restrict certain applications requiring frequent data modifications.
• Parallel interface may not be suitable for systems with limited pin availability.
• Relatively higher cost compared to other memory technologies.

Working Principles

AT28BV256-20JI utilizes flash memory technology to store and retrieve digital information. It employs a combination of floating-gate transistors and charge storage mechanisms to retain data even when power is turned off. The device operates by applying appropriate voltage levels to control pins, allowing for read, write, and erase operations.

Detailed Application Field Plans

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

Detailed and Complete Alternative Models

1. AT28C256 - Similar capacity, different access time.
2. AT29C256 - Similar capacity, different package type.
3. AT45DB256 - Different memory technology (serial flash), similar capacity.

These alternative models offer similar functionality and can be considered as alternatives to AT28BV256-20JI based on specific requirements and system constraints.

In conclusion, AT28BV256-20JI is a non-volatile memory device that provides reliable storage for digital information. With its high capacity, low power consumption, and fast access time, it finds application in various electronic systems. While it has certain limitations, alternative models are available to suit specific needs.