DALLAS DS1991 MultiKey iButton handbook

Update: 28 September, 2023

The document describes a product with a 1,152-bit secure read/write nonvolatile memory and a 64-bit password. The memory is partitioned into 3 blocks, each with a 64-bit password and ID fields. The product also features a 512-bit scratchpad for data transfer integrity. It operates in a temperature range of -40°C to +70°C and has over 10 years of data retention.

---

File format: PDF

Size: -

MD5 Checksum: 390E65A14D0564C77A094CC78096F844

Publication date: 09 May, 2012

Downloads: -

PDF Link: DALLAS DS1991 MultiKey iButton handbook PDF