AT25DF321-SU

Product Overview

Category: Integrated Circuit (IC)

Use: The AT25DF321-SU is a Serial Flash Memory IC that provides non-volatile storage for various electronic devices. It is commonly used in applications where data needs to be stored reliably and accessed quickly.

Characteristics: - High-speed serial interface - Low power consumption - Wide operating voltage range - Large storage capacity - Durable and reliable

Package: The AT25DF321-SU is available in a small form factor package, making it suitable for space-constrained designs. It is commonly found in a 16-pin SOIC (Small Outline Integrated Circuit) package.

Essence: The essence of the AT25DF321-SU is its ability to store and retrieve data in a fast and efficient manner. It offers a reliable solution for storing critical information in electronic devices.

Packaging/Quantity: The AT25DF321-SU is typically sold in reels or tubes, with each reel or tube containing a specific quantity of ICs. The exact packaging and quantity may vary depending on the supplier.

Specifications

• Storage Capacity: 32 Megabits (4 Megabytes)
• Interface: Serial Peripheral Interface (SPI)
• Operating Voltage Range: 2.7V to 3.6V
• Operating Temperature Range: -40°C to +85°C
• Data Retention: Up to 20 years
• Erase/Program Cycles: 100,000 cycles

Detailed Pin Configuration

The AT25DF321-SU has a total of 16 pins, each serving a specific purpose. The pin configuration is as follows:

1. Chip Select (/CS)
2. Serial Clock (SCK)
3. Serial Data Input (SI)
4. Serial Data Output (SO)
5. Hold (/HOLD)
6. Write Protect (/WP)
7. Ground (GND)
8. VCC Power Supply
9. NC (No Connection)
10. NC
11. NC
12. NC
13. NC
14. NC
15. NC
16. NC

Functional Features

• High-speed data transfer: The AT25DF321-SU supports a fast serial interface, allowing for quick and efficient data transfer.
• Flexible erase and program operations: It provides sector-based erasure and byte or page-based programming options, giving users flexibility in managing their data.
• Hardware and software protection: The IC offers hardware and software protection mechanisms to prevent unauthorized access or modification of stored data.
• Low power consumption: The AT25DF321-SU is designed to minimize power consumption, making it suitable for battery-powered devices.

Advantages and Disadvantages

Advantages: - Large storage capacity - Fast data transfer rate - Low power consumption - Durable and reliable - Flexible erase and program operations

Disadvantages: - Limited compatibility with certain microcontrollers or systems - Relatively higher cost compared to other memory options

Working Principles

The AT25DF321-SU utilizes the Serial Peripheral Interface (SPI) protocol to communicate with the host microcontroller or system. It stores data in non-volatile memory cells, which retain information even when power is disconnected. The IC can be accessed and controlled using specific commands sent through the SPI interface.

Detailed Application Field Plans

The AT25DF321-SU finds applications in various electronic devices that require reliable and fast data storage. Some common application fields include: - Consumer electronics (e.g., smartphones, tablets, digital cameras) - Automotive systems (e.g., infotainment systems, instrument clusters) - Industrial equipment (e.g., control systems, data loggers) - Medical devices (e.g., patient monitoring systems, diagnostic equipment)

Detailed and Complete Alternative Models

• AT25DF641-SU: Similar to the AT25DF321-SU but with double the storage capacity (64 Megabits)
• AT25DF081A-SU: A lower-capacity alternative with 8 Megabits of storage
• MX25L3206E: A comparable Serial Flash Memory IC from another manufacturer

These alternative models offer similar functionality and can be considered as replacements for the AT25DF321-SU depending on specific requirements.

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