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TJA1021 - ISO 17987/LIN 2.x/SAE J2602 transceiver

General Description

The TJA1021 is the interface between the Local Interconnect Network (LIN) commander/ responder protocol controller and the physical bus in a LIN.

Key Features

  • 2.1 General.
  • LIN 2.x/ISO 17987-4:2016 (12 V)/SAE J2602 compliant.
  • Baud rate up to 20 kBd (/20 and B variants).
  • Very low ElectroMagnetic Emission (EME).
  • High ElectroMagnetic Immunity (EMI).
  • Passive behavior in unpowered state.
  • Input levels compatible with 3.3 V and 5 V devices.
  • Integrated termination resistor for LIN responder.

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TJA1021 ISO 17987/LIN 2.x/SAE J2602 transceiver Rev. 9 — 10 February 2023 Product data sheet 1 General description 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 invehicle 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). The transmit data stream of the protocol controller at the transmit data input (TXD) is converted by the TJA1021 into a bus signal with optimized slew rate and wave shaping to minimize ElectroMagnetic Emission (EME).