AT45DQ321-MHF2B-T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Data Storage
• Characteristics:
  • Non-volatile memory
  • High-speed data transfer
  • Low power consumption
• Package: MHF2B-T
• Essence: Flash Memory
• Packaging/Quantity: Tape and Reel, 250 units per reel

Specifications

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

Detailed Pin Configuration

The AT45DQ321-MHF2B-T has a total of 8 pins:

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

Functional Features

• Dual Output SPI: Allows simultaneous read access from two different addresses.
• Continuous Read Mode: Enables continuous data streaming without the need for reissuing commands.
• Sector Lockdown: Provides protection against accidental erasure or modification of critical data.
• Deep Power-down Mode: Reduces power consumption when the device is not in use.

Advantages and Disadvantages

Advantages: - High-speed data transfer - Non-volatile memory ensures data retention even during power loss - Compact package size - Low power consumption

Disadvantages: - Limited memory size compared to other storage options - Relatively higher cost per megabyte compared to traditional hard drives

Working Principles

The AT45DQ321-MHF2B-T is based on the Flash memory technology. It stores data by trapping electrons in a floating gate, which can be electrically erased and reprogrammed. The Serial Peripheral Interface (SPI) allows for easy communication between the IC and the host device.

Detailed Application Field Plans

The AT45DQ321-MHF2B-T is widely used in various applications, including but not limited to:

1. Consumer Electronics: Used in digital cameras, portable media players, and gaming consoles for data storage.
2. Automotive Systems: Used in infotainment systems, navigation devices, and engine control units for storing critical information.
3. Industrial Automation: Used in programmable logic controllers (PLCs), robotics, and monitoring systems for data logging and configuration storage.

Detailed and Complete Alternative Models

1. AT45DB321E-SHN-T: Similar specifications with different packaging and pin configuration.
2. AT25DF321A-SH-T: Lower memory size but compatible with the same interface and voltage range.
3. MX25L3233FM2I-08G: Higher memory size with similar characteristics and package type.

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