AT28BV256-20SU

Product Overview

Category

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

Use

It is primarily used for data storage in various electronic systems and devices.

Characteristics

• Non-volatile: Retains data even when power is turned off.
• High capacity: Offers a storage capacity of 256 kilobits.
• Low power consumption: Operates on low power, making it suitable for battery-powered devices.
• Fast access time: Provides quick access to stored data.
• Reliable: Ensures data integrity with built-in error detection and correction mechanisms.

Package

AT28BV256-20SU comes in a small outline integrated circuit (SOIC) package.

Essence

The essence of AT28BV256-20SU lies in its ability to store and retrieve data reliably and efficiently.

Packaging/Quantity

This product is typically packaged in reels or tubes, with each containing a specific quantity of AT28BV256-20SU 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. CE - Chip enable
11. OE - Output 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 unauthorized access or modification.
• Automatic sleep mode: Enters a low-power sleep mode when not in use, conserving energy.
• Fast page write: Enables efficient programming of multiple bytes within a single page.

Advantages

• Non-volatile nature ensures data persistence even during power loss.
• High storage capacity accommodates a wide range of applications.
• Low power consumption extends battery life in portable devices.
• Fast access time facilitates quick retrieval of data.
• Reliable error detection and correction mechanisms enhance data integrity.

Disadvantages

• Limited erase/write cycles may restrict certain high-frequency usage scenarios.
• Parallel interface may not be suitable for all modern systems that prefer serial interfaces.
• Relatively higher cost compared to other memory technologies with similar capacities.

Working Principles

AT28BV256-20SU utilizes electrically erasable programmable read-only memory (EEPROM) technology. It stores data by trapping charges in floating gate transistors, which can be electrically erased and reprogrammed. The stored charge determines the logic state of each memory cell, allowing data to be retained even without power.

Detailed Application Field Plans

AT28BV256-20SU finds applications 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. AT28C256-15PU: Similar capacity and functionality, with a different package type.
2. AT28HC256-90SU: Higher endurance and faster access time, suitable for demanding applications.
3. AT28BV256-30TU: Lower power consumption variant, ideal for battery-powered devices.

These alternative models offer similar features and can be considered based on specific requirements and compatibility.

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