AT45DB081B-CNU

Product Overview

Category

AT45DB081B-CNU belongs to the category of flash memory devices.

Use

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

Characteristics

• Non-volatile memory
• High-speed data transfer
• Low power consumption
• Small form factor
• Reliable and durable

Package

AT45DB081B-CNU is available in a compact package, suitable for surface mount technology (SMT) applications.

Essence

The essence of AT45DB081B-CNU lies in its ability to provide reliable and high-performance data storage solutions for electronic devices.

Packaging/Quantity

AT45DB081B-CNU is typically packaged in reels or trays, with a quantity of 2500 units per reel/tray.

Specifications

• Memory capacity: 8 megabits (1 megabyte)
• Interface: Serial Peripheral Interface (SPI)
• Operating voltage: 2.7V - 3.6V
• Operating temperature range: -40°C to +85°C
• Data retention: Up to 20 years
• Erase/program cycles: 10,000 minimum

Detailed Pin Configuration

The AT45DB081B-CNU has a total of 8 pins, each serving a specific function:

1. Chip Select (/CS): Used to enable or disable the device.
2. Serial Clock (SCK): Provides the clock signal for data transfer.
3. Serial Data Input (SI): Receives data from the host device.
4. Serial Data Output (SO): Transmits data to the host device.
5. Write Protect (/WP): Enables or disables write protection.
6. Reset (/RESET): Resets the device to its default state.
7. VCC: Power supply input.
8. GND: Ground connection.

Functional Features

• Page program and erase operations for flexible data management.
• Continuous read mode for efficient data retrieval.
• Sector protection to prevent accidental modification of critical data.
• Software and hardware write protection options.
• Deep power-down mode for ultra-low power consumption.

Advantages and Disadvantages

Advantages

• High-speed data transfer allows for quick access to stored information.
• Low power consumption prolongs battery life in portable devices.
• Small form factor enables integration into compact electronic designs.
• Reliable data retention ensures long-term storage without data loss.
• Flexible write protection options enhance data security.

Disadvantages

• Limited memory capacity compared to higher-end flash memory devices.
• Erase/program cycle limitations may restrict frequent data modifications.
• Higher cost per megabyte compared to traditional magnetic storage media.

Working Principles

AT45DB081B-CNU utilizes the Serial Peripheral Interface (SPI) to communicate with the host device. It employs a combination of floating gate and control gate transistors to store and retrieve data. The memory cells are organized into sectors, allowing for efficient data management. When data is written, it is stored in pages within the selected sector. Reading data involves retrieving the stored information from the specified memory address. Erasing data involves clearing entire sectors, making them ready for new data storage.

Detailed Application Field Plans

AT45DB081B-CNU finds applications in various electronic devices, including but not limited to: - Smartphones and tablets - Digital cameras - Portable media players - Automotive electronics - Industrial control systems - Medical devices

Detailed and Complete Alternative Models

1. AT45DB161E-CNU: Offers double the memory capacity (16 megabits) compared to AT45DB081B-CNU.
2. AT45DB321D-CNU: Provides triple the memory capacity (32 megabits) compared to AT45DB081B-CNU.
3. AT45DB641E-CNU: Offers six times the memory capacity (64 megabits) compared to AT45DB081B-CNU.

These alternative models provide increased storage capabilities for applications that require larger memory capacities.

Word count: 550 words