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DS28E81P+T
Product Overview
Category
The DS28E81P+T belongs to the category of electronic components.
Use
It is primarily used for secure authentication and communication purposes in various electronic systems.
Characteristics
- Secure authentication and communication capabilities
- Compact package design
- High reliability and durability
- Wide operating temperature range
- Low power consumption
Package
The DS28E81P+T is available in a small surface-mount package, which ensures easy integration into electronic devices.
Essence
The essence of DS28E81P+T lies in its ability to provide secure authentication and communication features, enhancing the overall security of electronic systems.
Packaging/Quantity
The DS28E81P+T is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.
Specifications
- Operating Voltage: 2.8V to 5.5V
- Communication Interface: I2C
- Operating Temperature Range: -40°C to +85°C
- Dimensions: 3mm x 3mm x 0.75mm
Detailed Pin Configuration
- VDD: Power supply input
- GND: Ground connection
- SDA: I2C data line
- SCL: I2C clock line
- ALERT#: Interrupt output
- NC: No connection
Functional Features
- Secure unique 64-bit ROM identification number
- Cryptographic functions for secure authentication
- Configurable memory for storing user-defined data
- One-time programmable memory for permanent data storage
- Tamper detection and response mechanisms
Advantages and Disadvantages
Advantages
- Robust security features protect against unauthorized access
- Flexible configuration options for various applications
- Small form factor enables integration into space-constrained designs
- Wide operating temperature range allows for use in harsh environments
Disadvantages
- Requires I2C communication interface support in the host system
- Limited memory capacity compared to some alternative models
Working Principles
The DS28E81P+T utilizes a combination of cryptographic algorithms and unique identification numbers stored in its ROM to provide secure authentication. It communicates with the host system through the I2C interface, enabling secure data transfer and configuration.
Detailed Application Field Plans
The DS28E81P+T finds applications in various fields where secure authentication and communication are crucial. Some potential application areas include:
- IoT devices: Enhancing security in connected devices such as smart home systems, industrial sensors, and wearable devices.
- Automotive: Securing communication between different electronic modules within vehicles, preventing unauthorized access or tampering.
- Medical devices: Ensuring the integrity and confidentiality of patient data in medical equipment and systems.
- Industrial control systems: Providing secure authentication and communication in critical infrastructure systems, such as power plants and manufacturing facilities.
Detailed and Complete Alternative Models
- DS28E81P: Similar to DS28E81P+T but without the extended temperature range.
- DS28E81-EP: Enhanced version with additional security features and larger memory capacity.
- DS28E81R: Variant designed for rugged environments with enhanced durability and resistance to environmental factors.
(Note: The above list is not exhaustive and other alternative models may exist.)
In conclusion, the DS28E81P+T is an electronic component that offers secure authentication and communication capabilities. Its compact package, wide operating temperature range, and robust security features make it suitable for various applications. However, it requires I2C interface support and has limited memory capacity compared to some alternatives.
Énumérez 10 questions et réponses courantes liées à l'application de DS28E81P+T dans les solutions techniques
Sure! Here are 10 common questions and answers related to the application of DS28E81P+T in technical solutions:
Q: What is DS28E81P+T? A: DS28E81P+T is a 1-Wire-to-I2C/SPI bridge device that allows communication between a 1-Wire master and I2C or SPI slave devices.
Q: What are the key features of DS28E81P+T? A: Some key features include bidirectional data transfer, programmable I2C/SPI slave address, 1-Wire EEPROM memory, and low power consumption.
Q: How can DS28E81P+T be used in technical solutions? A: DS28E81P+T can be used to interface 1-Wire devices with I2C or SPI buses, enabling easy integration of 1-Wire sensors or other devices into existing systems.
Q: Can DS28E81P+T support multiple 1-Wire devices? A: Yes, DS28E81P+T supports multiple 1-Wire devices by acting as a bridge between the 1-Wire bus and the I2C or SPI bus.
Q: What is the maximum data rate supported by DS28E81P+T? A: DS28E81P+T supports data rates up to 100 kbps for I2C and up to 10 Mbps for SPI communication.
Q: Does DS28E81P+T require external power supply? A: Yes, DS28E81P+T requires an external power supply, typically ranging from 2.8V to 5.25V.
Q: Can DS28E81P+T operate in harsh environments? A: Yes, DS28E81P+T is designed to operate in a wide temperature range (-40°C to +85°C) and can withstand harsh industrial environments.
Q: Is DS28E81P+T compatible with different microcontrollers? A: Yes, DS28E81P+T is compatible with various microcontrollers that support I2C or SPI communication protocols.
Q: Can DS28E81P+T be used for secure authentication purposes? A: Yes, DS28E81P+T supports SHA-256-based secure authentication, making it suitable for applications requiring secure device identification.
Q: Are there any evaluation kits available for DS28E81P+T? A: Yes, Maxim Integrated provides evaluation kits that include DS28E81P+T along with necessary documentation and software tools for easy integration and testing.
Please note that the answers provided here are general and may vary depending on specific application requirements. It's always recommended to refer to the official datasheet and technical documentation for accurate information.