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DS1971
the ds1971 256-bit eeprom ibutton is a rugged read/write data carrier that identifies and stores relevant information about the product or person to
DS1971
the ds1971 256-bit eeprom ibutton is a rugged read/write data carrier that identifies and stores relevant information about the product or person to
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製造商零件號 # : DS1971
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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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DS1971 數據表
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詳細說明
SPECIAL FEATURES● 256-bit Electrically Erasable Programmable Read Only Memory (EEPROM) communicates with the economy of one signal plus ground● EEPROM organized as one 256-bit page● 64-bit one-time programmable application register is automatically write-protected after programming● Reduces control, address, data, power, and programming signals to a single data pin● 8-bit family code specifies DS1971 communications requirements to reader● Reads and writes over a wide voltage range of 2.8V to 6.0V from -40°C to +85°C
主要特徵
- 256-bit Electrically Erasable Programmable
- Read Only Memory (EEPROM)
- communicates with the economy of one
- signal plus ground
- EEPROM organized as one 256-bit page
- 64-bit one-time programmable application
- register is automatically write-protected after programming
- Reduces control, address, data, power, and programming signals to a single data pin
- 8-bit family code specifies DS1971 communications requirements to reader
- Reads and writes over a wide voltage range of 2.8V to 6.0V from -40°C to +85°C
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 DS1971?
The DS1971 is a unique 256-bit EEPROM chip with a 1-Wire interface, designed by Maxim Integrated. It is commonly used for secure data storage, identification, and authentication in applications such as asset tracking, electronic signatures, and tamper detection.
How Does DS1971 Work?
The DS1971 works by providing non-volatile memory storage with tamper-evident features through the 1-Wire interface. It allows access to stored data and supports authentication protocols to ensure secure communication. The chip's unique serial number and additional memory features make it suitable for various secure identification and tracking applications.
How Many Pins does DS1971 have and What are the Functions of the Pinout Configuration?
The DS1971 is housed in a TO-92 (Transistor Outline) package, with a single-pin interface utilizing the 1-Wire protocol. The pinout configuration includes:
- DQ: Data input/output pin and power supply for the 1-Wire interface.
- No additional pins are present due to the single-pin 1-Wire interface.
What are the Pros and Cons of DS1971?
Pros:
- Secure Communication: Provides secure data access and authentication through the 1-Wire interface.
- Tamper Detection: Includes features for detecting physical tampering or unauthorized access attempts.
- Unique Serial Number: Offers a unique factory-programmed serial number for identification and tracking purposes.
- Compact Package: The TO-92 package is small and suitable for space-constrained designs.
Cons:
- Low Memory Capacity: The 256-bit memory may be limited for certain data storage applications.
- Single-Pin Interface: Limited interface pins may pose challenges for certain system integrations.
- Compatibility: Requires proper 1-Wire interface support for communication with host systems.
Are There Any Equivalents/Alternatives to DS1971 for Recommendation?
No direct equivalent is available due to the unique combination of features in the DS1971. However, other 1-Wire EEPROM devices from Maxim Integrated such as the DS1977 and DS28E15 offer similar secure storage and authentication capabilities.
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