AT45DB321D-SU-2.5

Product Overview

Category

AT45DB321D-SU-2.5 belongs to the category of flash memory devices.

Use

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

Characteristics

• Non-volatile memory: The AT45DB321D-SU-2.5 retains stored data even when power is removed.
• High capacity: With a storage capacity of 32 megabits (4 megabytes), it can accommodate a large amount of data.
• Fast data transfer: It offers high-speed data transfer rates, enabling efficient read and write operations.
• Low power consumption: The device operates at low power levels, making it suitable for battery-powered applications.

Package

The AT45DB321D-SU-2.5 is available in a small form factor package, which facilitates its integration into compact electronic devices.

Essence

The essence of this product lies in its ability to provide reliable and high-capacity data storage in a compact package, while ensuring fast data access and low power consumption.

Packaging/Quantity

The AT45DB321D-SU-2.5 is typically packaged in reels or trays, with each reel or tray containing a specific quantity of devices. The exact packaging and quantity may vary depending on the manufacturer's specifications.

Specifications

• Storage Capacity: 32 megabits (4 megabytes)
• Interface: Serial Peripheral Interface (SPI)
• Operating Voltage: 2.7V - 3.6V
• Data Transfer Rate: Up to 85 MHz
• Erase/Program Cycle Endurance: 10,000 cycles
• Data Retention: Up to 20 years
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The AT45DB321D-SU-2.5 has a total of 8 pins, each serving a specific function:

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

Functional Features

• Page Program Operation: Allows data to be written to the memory in page-sized increments.
• Continuous Read Mode: Enables sequential reading of data without the need for repeated commands.
• Sector Erase Operation: Erases a sector of memory, allowing for efficient data management.
• Deep Power-down Mode: Reduces power consumption when the device is not in use.
• Software Protection: Provides software-based protection mechanisms to prevent unauthorized access to stored data.

Advantages and Disadvantages

Advantages

• High storage capacity for data-intensive applications.
• Fast data transfer rates for efficient read and write operations.
• Low power consumption, making it suitable for battery-powered devices.
• Compact form factor for easy integration into electronic systems.
• Long data retention period ensures data integrity over time.

Disadvantages

• Limited erase/program cycle endurance compared to some other flash memory technologies.
• Relatively higher cost per unit compared to lower-capacity alternatives.

Working Principles

The AT45DB321D-SU-2.5 utilizes a combination of floating-gate transistors and memory cells to store and retrieve data. When data is written, charges are trapped in the floating gate, altering the transistor's conductive properties. This change is detected during read operations, allowing the stored data to be retrieved.

Detailed Application Field Plans

The AT45DB321D-SU-2.5 finds applications in various electronic devices, including but not limited to: - Consumer electronics (e.g., digital cameras, portable media players) - Automotive systems (e.g., infotainment systems, navigation units) - Industrial control systems - Medical devices - Communication equipment

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the AT45DB321D-SU-2.5 include: - AT25SF041: 4 megabit SPI flash memory. - MX25L3206E: 32 megabit low-power serial flash memory. - S25FL032P: 32 megabit SPI flash memory with enhanced security features.

These alternatives may vary in terms of specific features, performance, and compatibility with different systems. It is recommended to consult the respective datasheets for detailed information on each alternative model.

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