PAMIĘCI NIEULOTNE RAM W TECHNOLOGII IBUTTON
Kody produktów:
DS1992L-F5 (pojemność 1kb)
DS1993L-F5 (pojemność 4kb)
The DS1992/DS1993 memory iButtons® are rugged read/write data carriers that act as a localized database, easily accessible with minimal hardware. The nonvolatile memory and optional timekeeping capability offer a simple solution to storing and retrieving vital information pertaining to the object to which the iButton is attached. Data is transferred serially through the 1-Wire® protocol that requires only a single data lead and a ground return.
The scratchpad is an additional page that acts as a buffer when writing to memory. Data is first written to the scratchpad where it can be read back. After the data has been verified, a copy scratchpad command transfers the data to memory. This process ensures data integrity when modifying the memory. A 48-bit serial number is factory lasered into each DS1992/DS1993 to provide a guaranteed unique identity that allows for absolute traceability. The durable MicroCan® package is highly resistant to environmental hazards such as dirt, moisture, and shock. Its compact coin-shaped profile is self-aligning with mating receptacles, allowing the DS1992/DS1993 to be easily used by human operators. Accessories permit the DS1992/DS1993 to be mounted on almost any surface including plastic key fobs, photo-ID badges, and PC boards. Applications include access control, work-in-progress tracking, electronic travelers, storage of calibration constants, and debit tokens. |
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Dokumentacja układów DS1992 i DS1993 (w j. angielskim) |