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AT45DB321E-MWHF2B-T
Product Overview
Category
AT45DB321E-MWHF2B-T 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
- Wide operating voltage range
- Small form factor
Package
The AT45DB321E-MWHF2B-T is available in a surface mount 8-pin SOIC package.
Essence
This flash memory device is designed to provide reliable and efficient data storage capabilities for electronic systems.
Packaging/Quantity
The AT45DB321E-MWHF2B-T is typically packaged in reels, with each reel containing a specific quantity of devices.
Specifications
- Memory Size: 32 megabits (4 megabytes)
- Interface: Serial Peripheral Interface (SPI)
- Operating Voltage Range: 2.7V to 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
- VCC: Power supply voltage
- GND: Ground reference
- SI: Serial input for data transfer
- SO: Serial output for data transfer
- WP: Write protect control input
- HOLD: Hold control input
- SCK: Serial clock input
- CS: Chip select input
Functional Features
- Page Program Operation: Allows individual bytes or full pages to be programmed
- Sector Erase Operation: Erases a specified sector of memory
- Block Erase Operation: Erases a specified block of memory
- Chip Erase Operation: Erases the entire memory array
- Continuous Read Mode: Enables sequential reading of data
- Deep Power-down Mode: Reduces power consumption when the device is not in use
Advantages and Disadvantages
Advantages
- High-speed data transfer enables quick access to stored information
- Low power consumption prolongs battery life in portable devices
- Wide operating voltage range ensures compatibility with various systems
- Small form factor allows for integration into compact designs
Disadvantages
- Limited erase/program cycle endurance may affect long-term reliability
- Higher cost compared to other non-volatile memory options
- Requires a dedicated SPI interface for communication
Working Principles
The AT45DB321E-MWHF2B-T utilizes a combination of floating gate and control gate transistors to store and retrieve data. When programming, electrons are trapped in the floating gate, altering the transistor's threshold voltage. This change in threshold voltage represents a logical "1" or "0". During read operations, the stored charge is sensed, allowing the retrieval of the stored data.
Detailed Application Field Plans
The AT45DB321E-MWHF2B-T finds applications in various electronic devices, including but not limited to: - Consumer electronics (e.g., smartphones, tablets) - Automotive systems (e.g., infotainment systems, instrument clusters) - Industrial equipment (e.g., data loggers, control systems) - Medical devices (e.g., patient monitoring systems, diagnostic equipment)
Detailed and Complete Alternative Models
- AT45DB321D-MU
- AT45DB321D-SU
- AT45DB321D-CNU
- AT45DB321D-CNU-SL383
- AT45DB321D-CNU-SL383R
These alternative models offer similar functionality and specifications to the AT45DB321E-MWHF2B-T, providing options for different application requirements.
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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací AT45DB321E-MWHF2B-T v technických řešeních
Sure! Here are 10 common questions and answers related to the application of AT45DB321E-MWHF2B-T in technical solutions:
Q: What is the AT45DB321E-MWHF2B-T? A: The AT45DB321E-MWHF2B-T is a serial flash memory device manufactured by Adesto Technologies. It offers 32 megabits (4 megabytes) of storage capacity.
Q: What are some typical applications for the AT45DB321E-MWHF2B-T? A: This flash memory device is commonly used in various embedded systems, IoT devices, consumer electronics, industrial automation, and automotive applications.
Q: What is the interface protocol supported by the AT45DB321E-MWHF2B-T? A: The AT45DB321E-MWHF2B-T supports the Serial Peripheral Interface (SPI) protocol, which is widely used for communication between microcontrollers and peripheral devices.
Q: What is the operating voltage range of the AT45DB321E-MWHF2B-T? A: The AT45DB321E-MWHF2B-T operates within a voltage range of 2.7V to 3.6V, making it compatible with most common microcontrollers and systems.
Q: How fast can data be read from or written to the AT45DB321E-MWHF2B-T? A: The AT45DB321E-MWHF2B-T has a maximum clock frequency of 85 MHz, allowing for high-speed data transfer. The actual read/write speed depends on the system's SPI bus speed.
Q: Does the AT45DB321E-MWHF2B-T support wear-leveling algorithms? A: No, the AT45DB321E-MWHF2B-T does not have built-in wear-leveling algorithms. It is recommended to implement wear-leveling techniques in software if required for the application.
Q: Can the AT45DB321E-MWHF2B-T be used for code storage in microcontrollers? A: Yes, the AT45DB321E-MWHF2B-T can be used to store code or firmware in microcontrollers that support SPI flash memory devices.
Q: What is the typical endurance of the AT45DB321E-MWHF2B-T? A: The AT45DB321E-MWHF2B-T has a typical endurance of 100,000 write cycles per sector. This means each sector can be written to approximately 100,000 times before it may start to degrade.
Q: Is the AT45DB321E-MWHF2B-T capable of executing code directly from the flash memory? A: No, the AT45DB321E-MWHF2B-T is not designed to execute code directly. It is primarily used for data storage and retrieval purposes.
Q: Are there any specific precautions to consider when using the AT45DB321E-MWHF2B-T? A: It is important to handle the device properly to avoid electrostatic discharge (ESD) damage. Additionally, following the manufacturer's guidelines for power supply decoupling and signal integrity is recommended for optimal performance.
Please note that these answers are general and may vary depending on the specific requirements and implementation of the AT45DB321E-MWHF2B-T in different technical solutions.