AT45DB321D-MU-SL955

Product Overview

Category: Integrated Circuit (IC)

Use: The AT45DB321D-MU-SL955 is a flash memory IC that is commonly used in electronic devices for data storage and retrieval. It provides non-volatile storage capabilities, allowing information to be retained even when power is removed.

Characteristics: - High storage capacity - Fast read and write speeds - Low power consumption - Durable and reliable - Easy integration into various electronic systems

Package: The AT45DB321D-MU-SL955 is available in a small form factor package, making it suitable for use in compact electronic devices. It is designed to be surface-mounted on printed circuit boards (PCBs).

Essence: The essence of the AT45DB321D-MU-SL955 is its ability to store and retrieve digital information reliably and efficiently. It is widely used in applications where non-volatile memory is required, such as consumer electronics, industrial equipment, and automotive systems.

Packaging/Quantity: The AT45DB321D-MU-SL955 is typically sold in reels or trays, with a quantity of 250 units per reel/tray.

Specifications

• Storage 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
• Endurance: 10,000 erase/write cycles

Pin Configuration

The AT45DB321D-MU-SL955 has a total of 8 pins, which are assigned specific functions:

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) - Used to input data into the device.
4. Serial Data Output (SO) - Outputs data from the device.
5. Write Protect (/WP) - Enables or disables write protection.
6. Reset (/RESET) - Resets the device to its default state.
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: Allows data to be programmed in page-sized increments.
• Continuous Read Mode: Enables sequential reading of data without the need for readdressing.
• Sector Erase Operation: Erases a specific sector of memory, allowing for efficient data management.
• Software Protection: Provides software-controlled write protection to prevent accidental modification of stored data.
• Deep Power-down Mode: Reduces power consumption when the device is not in use.

Advantages and Disadvantages

Advantages: - High storage capacity - Fast read and write speeds - Low power consumption - Durable and reliable - Easy integration into various electronic systems

Disadvantages: - Limited endurance (10,000 erase/write cycles) - Relatively small form factor may not be suitable for applications requiring larger storage capacities.

Working Principles

The AT45DB321D-MU-SL955 utilizes flash memory technology to store digital information. It consists of multiple memory cells that can be electrically programmed and erased. The device uses a serial interface to communicate with the host system, allowing for easy integration into various electronic devices. When data needs to be stored or retrieved, the device follows a set of protocols defined by the SPI interface.

Detailed Application Field Plans

The AT45DB321D-MU-SL955 is widely used in various application fields, including:

1. Consumer Electronics: Used in smartphones, tablets, digital cameras, and portable media players for data storage.
2. Industrial Equipment: Integrated into industrial control systems, data loggers, and measurement devices for reliable data storage.
3. Automotive Systems: Employed in automotive infotainment systems, navigation units, and engine control modules for storing critical information.
4. Medical Devices: Utilized in medical equipment such as patient monitors and diagnostic devices to store patient data securely.

Detailed and Complete Alternative Models

1. AT45DB321D-SU: Similar to the AT45DB321D-MU-SL955, but with a different package (SOIC) and no lead-free option.
2. AT45DB641E-MU: Offers double the storage capacity (64 megabits) compared to the AT45DB321D-MU-SL955.
3. AT25SF041-SSHD-T: A smaller capacity alternative (4 megabits) with similar characteristics and package options.

These alternative models provide options for different storage capacities and package preferences, allowing designers to choose the most suitable flash memory IC for their specific requirements.