TJA1101BHN/0Z NXP

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. Additional documentation, including a safety manual, is available on request. The TJA1101B supports OPEN Alliance TC-10-compliant sleep and wake-up request forwarding, with an always-on power domain connected directly to the battery supply without the need for a dedicated voltage regulator. 2 Features and benefits 2.1 General 100BASE-T1 PHY MII- and RMII-compliant interfaces Compact 36-pin HVQFN package (6 6 mm) for PCB space-constrained applications ISO 26262, ASIL-A compliant 2.2 Optimized for automotive use cases Transmitter optimized for capacitive coupling to unshielded twisted-pair cable Adaptive receive equalizer optimized for automotive cable length of up to at least 15 m Enhanced integrated PAM-3 pulse shaping for low RF emissions EMC-optimized output driver strength for MII and RMII MDI pins meet class IV conducted emission limit as per OPEN Alliance EMC Specification 2.0 MDI pins protected against ESD to 6 kV HBM and 8 kV IEC61000-4-2 MDI pins protected against transients in automotive environment MDI pins do not need external filtering or ESD protection Automotive-grade temperature range from -40 C to +125 C Automotive product qualification in accordance with AEC-Q100 Host-configurable MDI polarity Automated polarity detection and correctionNXP Semiconductors TJA1101B 100BASE-T1 PHY for automotive Ethernet 2.3 Low-power mode OPEN Alliance TC-10-compliant sleep and wake-up forwarding Robust remote wake-up detection via bus lines Wake-up forwarding at PHY level (supporting global system wake-up) Inhibit output for voltage regulator control Dedicated PHY enable/disable input pin to minimize power consumption Local wake-up pin Wake-up via SMI-access 2.4 Diagnosis Signal Quality Indicator for real-time monitoring of link stability and transmitted data quality Diagnosis of cable errors (shorts and opens) Gap-free supply undervoltage detection with fail-silent behavior Internal, external and remote loopback modes 2.5 Miscellaneous Reverse MII mode for back-to-back connection of two PHYs On-chip regulators to provide 3.3 V single-supply operation Supports optional 1.8 V external supply for digital core On-chip termination resistors for the differential cable pair Jumbo frame support up to 16 kB 3 Ordering information Table 1.Ordering information Type number Package Name Description Version TJA1101BHN HVQFN36 plastic thermal enhanced very thin quad flat package no leads 36 SOT1092-2 terminals body 6 6 0.85 mm TJA1101B All information provided in this document is subject to legal disclaimers. NXP B.V. 2021. All rights reserved. Product data sheet Rev. 1 1 March 2021 2 / 58