ANALOG DEVICES DS1993L-F5+ iButton Memory, 4Kbit, SRAM

The DS1993L-F5+ is a 4Kb 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.

• 4096bits of read/write non-volatile memory
• Operating temperature range from -40°C to +70°C
• 256bit scratchpad ensures integrity of data transfer
• 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

Applications

Embedded Design & Development

Warnings

Market demand for this product has caused an extension in leadtimes. Delivery dates may fluctuate. Product exempt from discounts

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party