Communication Flowchart for the DS2703

Abstract: The DS2703 SHA-1 battery-pack authentication IC provides a robust cryptographic solution for ensuring the authenticity of lithium-ion battery packs in a variety of portable applications. There are 11 function commands recognized by the DS2703, and each one has a particular sequence that must be followed in order to properly execute the command. This application note provides a description of a complete transaction sequence, as well as a flowchart of all possible communication sequences for the DS2703.