AT45DB321D-MWU

Product Overview

Category

AT45DB321D-MWU 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
• Reliable and durable
• Wide operating temperature range

Package

The AT45DB321D-MWU is available in a small form factor package, making it suitable for space-constrained applications.

Essence

The essence of AT45DB321D-MWU lies in its ability to provide reliable and high-performance data storage solutions for electronic devices.

Packaging/Quantity

The product is typically packaged in reels or trays, with a quantity of 250 units per reel/tray.

Specifications

• Memory capacity: 32 megabits (4 megabytes)
• Interface: Serial Peripheral Interface (SPI)
• Operating voltage: 2.7V to 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 AT45DB321D-MWU has a total of 8 pins, each serving a specific function:

1. VCC: Power supply voltage
2. GND: Ground reference
3. SI: Serial input for data transfer
4. SO: Serial output for data transfer
5. WP: Write protect pin
6. HOLD: Hold pin for suspending operations
7. SCK: Serial clock input
8. CS: Chip select input

Functional Features

• Page program operation for efficient data storage
• Continuous read mode for fast data retrieval
• Sector erase capability for flexible memory management
• Software and hardware protection mechanisms for data security
• Deep power-down mode to minimize power consumption during idle periods

Advantages and Disadvantages

Advantages

• High-speed data transfer enables quick access to stored information.
• Low power consumption prolongs battery life in portable devices.
• Wide operating temperature range allows usage in various environments.
• Reliable and durable, ensuring data integrity over extended periods.

Disadvantages

• Limited erase/program cycles may restrict the lifespan of the device.
• Small memory capacity compared to other flash memory options.
• Requires a compatible interface (SPI) for communication with host devices.

Working Principles

The AT45DB321D-MWU utilizes a combination of floating gate and control gate transistors to store and retrieve data. When programming, electrons are trapped in the floating gate, altering the transistor's threshold voltage. This change determines whether the cell represents a logical "0" or "1". During read operations, the stored charge is measured to determine the stored data.

Detailed Application Field Plans

The AT45DB321D-MWU finds applications in various electronic devices, including but not limited to: - Smartphones and tablets - Digital cameras - Portable media players - Automotive systems - Industrial control systems

Detailed and Complete Alternative Models

1. AT45DB161D-MWU: 16 megabits (2 megabytes) memory capacity
2. AT45DB641D-MWU: 64 megabits (8 megabytes) memory capacity
3. AT45DB1282D-MWU: 128 megabits (16 megabytes) memory capacity

These alternative models offer different memory capacities to cater to diverse storage requirements.

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