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TJA1101B
100BASE-T1 PHY for automotive Ethernet
Rev. 1 — 1 March 2021
Product data sheet
1 General description
The TJA1101B is a 100BASE-T1-compliant Ethernet PHY optimized for automotive use cases such as gateways, IP camera links, radar modules, driver assistance systems and back-bone networks. The device provides 100 Mbit/s transmit and receive capability over a single unshielded twisted-pair cable, supporting a cable length of up to at least 15 m. The TJA1101B has been designed for automotive robustness and ISO 26262, ASIL-A compliance, while minimizing power consumption and system costs.
Being ASIL-A compliant, adequate safety features have been implemented to ensure that ASIL requirements are met at system level.