AT28BV256-20JA

Product Overview

Category

AT28BV256-20JA 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: 256 kilobits (32 kilobytes) of storage.
• Low power consumption: Operates at a low voltage and consumes minimal power.
• Fast access time: Provides quick read and write operations.
• Durable: Can withstand harsh environmental conditions.

Package

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

Essence

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

Packaging/Quantity

This product is typically packaged in reels or tubes, with each containing a specific quantity of AT28BV256-20JA 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 operations: Allows individual byte read and write operations.
• Hardware and software protection: Provides mechanisms to protect data from accidental modification.
• Fast page write: Enables efficient programming of multiple bytes in a single operation.
• Automatic sleep mode: Reduces power consumption when the device is idle.

Advantages and Disadvantages

Advantages

• Non-volatile storage: Ensures data integrity even during power outages.
• High capacity: Offers ample storage space for various applications.
• Low power consumption: Helps prolong battery life in portable devices.
• Fast access time: Facilitates quick data retrieval and storage operations.

Disadvantages

• Limited erase/write cycles: The number of times the memory can be erased and written is finite.
• Relatively higher cost: Non-volatile memory devices tend to be more expensive compared to volatile alternatives.

Working Principles

AT28BV256-20JA utilizes a combination of electronic circuits and semiconductor technology to store and retrieve digital information. It employs a floating-gate transistor structure that allows for non-volatile storage of data by trapping electric charge within the gate.

Detailed Application Field Plans

AT28BV256-20JA finds applications in various fields, including: 1. Embedded systems 2. Consumer electronics 3. Automotive electronics 4. Industrial control systems 5. Medical devices

Detailed and Complete Alternative Models

Some alternative models to AT28BV256-20JA include: 1. AT28C256-15PU: Similar capacity and functionality, but operates at a lower voltage. 2. AT45DB256E-SH: Flash memory alternative with higher erase/write cycles and faster access time. 3. M25P32-VMN6TPB: Serial flash memory option with smaller package size and lower power consumption.

(Note: The above list is not exhaustive and serves as an example of alternative models.)

In conclusion, AT28BV256-20JA is a non-volatile memory device that offers high capacity, low power consumption, and fast access time. It finds applications in various fields and has alternative models with different specifications and features.