The TJA1021 is the interface between the Local Interconnect Network (LIN) commander/ responder protocol controller and the physical bus in a LIN. It is primarily intended for in- vehicle sub-networks using baud rates from 1 kBd up to 20 kBd (/20 and B variants) and is compliant with LIN 2.0, LIN 2.1, LIN 2.2, LIN 2.2A, SAE J2602 and ISO 17987-4:2016 (12 V). The TJA1021 is pin-to-pin compatible with the TJA1020 and MC33662(B).