The DS1992L-F5+ is a 1Kb memory iButton in F5 MicroCan package. This is a rugged read/write data carrier that acts as a localized database, easily accessible with minimal hardware. The non-volatile 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 48bit serial number is factory lasered into each DS199x to provide a unique identity that allows for absolute traceability.
- 1024 bits of read/write non-volatile memory
- Operating temperature range from -40°C to +70°C
- 256bit scratchpad ensures integrity of data transfer & memory partitioned into 256bit pages
- Over 10 years of data retention
- Multidrop controller for MicroLAN
- Digital identification and information by momentary contact
- Chip based data carrier compactly stores information
- Data can be accessed while affixed to object
- Economically communicates to bus master with a single digital signal at 16.3Kbps
- Standard 16mm diameter and 1-wire protocol ensure compatibility with iButton family
嵌入式设计与开发
