AT45DB321D-MU

Product Overview

Category

AT45DB321D-MU 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
• Compact size
• Durable and reliable

Package

AT45DB321D-MU is available in a small form factor package, making it suitable for integration into compact electronic devices.

Essence

The essence of AT45DB321D-MU lies in its ability to provide reliable and efficient data storage solutions for a wide range of applications.

Packaging/Quantity

AT45DB321D-MU is typically packaged in reels or trays, with each package containing a specific quantity of devices. The exact packaging and quantity may vary depending on the manufacturer.

Specifications

• Memory capacity: 32 megabits (4 megabytes)
• 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 AT45DB321D-MU has a total of 8 pins, each serving a specific function:

1. Chip Select (/CS) - Enables communication with the device when pulled low.
2. Serial Clock (SCK) - Provides the clock signal for data transfer.
3. Serial Data Input (SI) - Used to input data to the device during programming or reading operations.
4. Serial Data Output (SO) - Outputs data from the device during read operations.
5. Write Protect (/WP) - When pulled low, prevents write operations to the device.
6. Reset (/RESET) - Resets the device to its default state when pulled low.
7. Ground (GND) - Connected to the ground reference of the system.
8. Power Supply (VCC) - Connected to the power supply of the system.

Functional Features

• Page program operation for efficient data storage and retrieval.
• Continuous read mode for high-speed data transfer.
• Sector erase capability for flexible memory management.
• Software and hardware protection mechanisms to prevent unauthorized access.
• Deep power-down mode for ultra-low power consumption during idle periods.

Advantages and Disadvantages

Advantages

• High-speed data transfer allows for quick access to stored information.
• Low power consumption ensures energy efficiency in portable devices.
• Compact size enables integration into space-constrained designs.
• Durable and reliable, ensuring data integrity over extended periods.

Disadvantages

• Limited memory capacity compared to higher-end flash memory devices.
• Relatively lower erase/program cycles may restrict frequent write operations.

Working Principles

AT45DB321D-MU utilizes a combination of floating gate and control gate transistors to store and retrieve data. The memory cells are organized into sectors, which can be individually erased or programmed. Data is transferred to and from the device using the Serial Peripheral Interface (SPI) protocol.

Detailed Application Field Plans

AT45DB321D-MU finds applications in various fields, including but not limited to: 1. Consumer electronics: Smartphones, tablets, digital cameras. 2. Automotive: Infotainment systems, navigation devices. 3. Industrial automation: Control systems, data loggers. 4. Medical devices: Patient monitoring systems, diagnostic equipment. 5. Internet of Things (IoT): Sensor nodes, wearable devices.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to AT45DB321D-MU include: 1. AT25SF041-SSHD-T: 4 megabit SPI flash memory. 2. MX25L3233FZNI-08G: 32 megabit serial flash memory. 3. S25FL032P0XNFI011: 32 megabit NOR flash memory.

These alternative models can be considered based on specific requirements and compatibility with the target system.

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