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DS1972
DS1972 is an iButton device that combines a 256-bit EEPROM with a real-time clock.
DS1972
DS1972 is an iButton device that combines a 256-bit EEPROM with a real-time clock.
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製造商零件號 # : DS1972
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包裝/封裝: CAN
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製造商: DALLAS
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產品分類 : EEPROMs
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DS1972 數據表
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詳細說明
DS1972 is a 1024-bit nonvolatile memory chip manufactured by Maxim Integrated. It features a unique 64-bit silicon serial number, which provides a unique identification code for each chip. This allows for easy identification and tracking of individual devices.The DS1972 operates over a wide voltage range from 2.8V to 5.25V, making it suitable for a variety of applications. It has a data retention period of over 10 years and can withstand a minimum of 100,000 read/write cycles.One of the key features of the DS1972 is its SHA-1 secure authentication and encryption capabilities. This ensures that data stored on the chip remains secure and tamper-proof. The chip also has a user-programmable alarm output, which can be used to trigger events based on predefined conditions.The DS1972 is typically used in applications where secure data storage and authentication are required, such as in medical devices, electronic passports, and industrial control systems. Its small size and low power consumption make it ideal for use in portable and battery-powered devices.
主要特徵
- 64-bit unique serial number
- 1kb of secure read/write memory
- Programmable read-only memory protection
- Communicates over the 1-Wire® bus
- Operating temperature range of -40°C to +85°C
- Parasitically powered by the data line
應用
- Temperature monitoring in medical devices
- Temperature tracking in food transportation
- Environmental monitoring in industrial settings
- Data logging in automotive systems
- Asset tracking in supply chain management
- Temperature control in HVAC systems
- Cold chain management in pharmaceutical industry
- Quality control in manufacturing processes
- Temperature monitoring in warehouses
- Temperature profiling in research and development
數據表 PDF
數據表記錄了器件的特性、絕對最大額定值、應用等，這對於作為器件特定應用的整體指南大有裨益。
常見問題解答
What is DS1972?
The DS1972 is a 4KB iButton data logger designed by Maxim Integrated. It is ideal for applications requiring long-term data logging, such as temperature monitoring, environmental data recording, and supply chain management.
How Does DS1972 Work?
The DS1972 works by logging temperature or environmental data at predetermined intervals onto its non-volatile memory. It can store up to 2048 8-bit samples or 1024 16-bit samples, providing a reliable and compact solution for data logging applications. The iButton form factor allows easy integration into various systems.
How Many Pins does DS1972 have and What are the Functions of the Pinout Configuration?
The DS1972 is housed in a 2-contact iButton package. The pinout configuration includes:
- Signal: Data and power contact for communication and power supply.
- Ground: Ground contact for power and communication reference.
What are the Pros and Cons of DS1972?
Pros:
- Compact Form Factor: The iButton design allows for easy integration and portability.
- Long-term Data Logging: Suitable for extended data recording in various environmental conditions.
- Non-volatile Memory: Retains data even when not powered, ensuring data integrity.
- Low Power Consumption: Ideal for battery-powered and remote applications.
Cons:
- Limited Memory Capacity: The 4KB memory may be insufficient for some applications with high data volume requirements.
- Single Parameter Logging: The DS1972 primarily logs temperature data and may not be suitable for applications requiring multi-parameter data logging.
- Single-Wire Interface: The single-wire communication interface may limit the speed of data transfer in certain applications.
Are There Any Equivalents/Alternatives to DS1972 for Recommendation?
- The DS1922L from Maxim Integrated is a similar 1-wire data logger with additional features.
- Alternatives to the DS1972 include the DS1921G from Maxim Integrated and the DS1920 from Maxim Integrated.
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