Description
The DS1963S-F5+ is an iButton® that can be used as a monetary device for purposes like creating a secure change purse for electronic payment at local transit systems, pay phones, parking systems, or vending machines. It can also be used in photo ID badges and printed circuit boards. It can serve up to four independent purposes at once and is highly resistant to dirt, moisture, and shock, making it extremely versatile. The device can also operate as a roaming iButton® device or as a coprocessor for a host computer.
Data is transferred serially through the 1-Wire® protocol, which requires one a single data lead and a ground return. The DS1963S-F5+ has 4096 bits of read/write nonvolatile memory organized into 16 pages of 256 bits each and can store over 10 years worthy of data. Eight of these memory pages have write-only 64 bit secrets and 32 bit read-only, non-rolling-over page write-cycle counters. To ensure for safe data transfers, the DS1963S-F5+ has an on-chip 16 bit CRC generator and a 156 bit scratchpad. Each iButton has its own 64 bit ROM registration number lasered into the chip to prove a unique, easy to trace identity. The on-chip 512 bit SHA 1 function computes a 160 bit Message Authentication Code (MAC) and generates page secrets.
The DS1963S-F5+ has a temperature range of -40°C to +85°C and the standard 16 mm diameter. The SHA-1 function is a 4K bit read/write data carrier. Overdrive mode boosts the communication speed of the iButton® to 125 kbps.
This iButton® is compatible with the iButton® family of devices. It can be mounted on almost any surface, including plastic key fobs, photo ID badges, and printed circuit boards. If you are ordering iButtons® and fobs, please know that they will come separately unless you also order the iButton® Machined Insertion with them for each pair.
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