Datasheet Specifications
- Part number
- DS1991
- Manufacturer
- Dallas Semiconductor
- File Size
- 326.54 KB
- Datasheet
- DS1991_DallasSemiconductor.pdf
- Description
- MultiKey iButton
Description
DS1991 MultiKey iButtonTM www.dalsemi.com SPECIAL .Features
* 1,152-bit secure read/write, nonvolatile memoryApplications
* include secure access control, debit tokens, work-in-progress tracking, electronic travelers and proprietary data. OPERATION The DS1991 is accessed via a single data line using the 1-Wire protocol. The bus master must first provide one of the four ROM Function Commands, 1) Read ROM, 2) Match ROM, 3DS1991 Distributors
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