Dallas-Semiconductor-i Button-Memory-Module-1k-Dallas-Semiconductor-DS1992L-F5-p-The-i Button-1k-Memory-DS1992L-F5-is-from-a-range-of-i Button-read-write-devices-that-act-as-localised-databases-that-are-easily-accessible-via-the-1-Wire-protocol-by-minimal-hardware-BR-BR-Suitable-for-use-in-such-applications-as-access-control-debit-tokens-storage-of-calibration-constants-electronic-travellers-&-workflow-tracking-p-Dallas-Semiconductor-DS1992L-F5-i Button-1k-Memory