MAXIM DS1996L-F5+

The DS1996 Memory iButton is a rugged, read/write data carrier that serves as a local database, easily accessible with minimal hardware. Its nonvolatile memory provides a simple solution for storing and retrieving critical information associated with the object to which the iButton is attached. Data is transferred serially via the 1-Wire protocol, which requires only a single data line and 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. Once verified, data is transferred to memory via the Copy Scratchpad command. This process ensures data integrity when modifying memory. Each DS1996 is laser-engraved at the factory with a 48-bit serial number, providing a guaranteed unique identity for full traceability. The rugged MicroCan package offers high resistance to environmental hazards such as dust, moisture, and shock. Its compact button-shaped profile self-aligns with mating receptacles for easy manual handling. With accessories, the DS1996 can be mounted on virtually any surface, including plastic key fobs, photo ID badges, and PCBs.

• 65536-bit read/write non-volatile memory
• Overdrive mode boosts communication speed to 142 kbits/s
• 256-bit scratchpad ensures data transfer integrity
• Memory organized into 256-bit pages for data packetization
• Strict read/write protocol guarantees data integrity
• Operating temperature range: -40℃ to +70℃
• Data retention exceeds 10 years
• Factory laser-engraved and tested 64-bit registration number (8-bit family code + 48-bit serial number + 8-bit CRC check) ensures traceability, as each device is unique
• Multipoint controller for MicroLAN
• Digital identification and data transfer via momentary contact
• Chip-based data carrier compactly stores information, accessible while attached to object
• Cost-effective communication with bus master via single digital signal at 16.3 kbits/s
• Standard 16 mm diameter and 1-Wire protocol ensure compatibility with iButton family
• Button shape enables automatic alignment with cup-shaped probe
• Rugged stainless steel housing engraved with registration number, withstands harsh environments
• Easy mounting via self-adhesive backing, snap-in flange, or lock ring pressed into edge
• Presence detector responds when reader first applies voltage