TJA1121, MACsec Enabled ASIL B Compliant Automotive Ethernet 1000BASE-T1 PHY Transceiver

TJA1121 Preproduction
  • This page contains information on a preproduction product. Specifications and information herein are subject to change without notice. For additional information contact support or your sales representative.

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TJA1121 adds MACsec to NXP’s 1000BASE-T1 Automotive Ethernet PHY portfolio. It addresses the security concerns for future networks and provides an efficient HW based solution for MACsec at 1 Gbps line rate. To enable speed grade scaling for platform designs with and without MACsec, the TJA1121 is kept drop in compatible with TJA1103, TJA1104 and TJA1120. The device comes in compact package HVQFN36 (6 x 6 mm) for space constraint use cases.

TJA1121 complies with all state-of-the-art conformance test specifications and is designed according to ISO 26262 to meet ASIL B, providing enhanced monitoring and diagnostic features. Further, it integrates OPEN Alliance TC-10 compliant wake-up forwarding over the Ethernet data line. It supports shielded (STP) and unshielded twisted pair (UTP) cable applications.

Block Diagram

TJA1121

TJA1121 Block Diagram
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Features

Security

  • IEEE802.1AE-2018 MACsec (1 Gbps line rate)

General

  • IEEE802.3bp compliant 1000BASE-T1 PHY
  • AEC-Q100 Grade 1
  • HVQFN 36-pin package (6 × 6 mm)
  • RGMII (TJA1121A) or SGMII (TJA1121B)
  • OPEN Alliance TC-10

Optimized for Automotive Use Cases

  • Functional Safety - ISO 26262, ASIL B
  • IEEE1588v2 and 802.1AS-rev 2-step timestamping support
  • Support for shielded and unshielded twisted-pair cable
  • Enhanced integrated pulse shaping for low RF emissions

Diagnosis

  • Open Alliance TC-12 Advanced PHY Features
  • Built-in self-test (BIST)
  • Real-time monitoring of link stability and data quality

Documentation

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2 documents

Hardware

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1-5 of 7 hardware offerings

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Software

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2 software files

  • BSPs and Device Drivers

    TJA11xx Linux driver for IEEE 802.3 Clause 45 managed PHYs

    EXTERNAL FILERev 0.1Nov 24, 2021 17:02:00TJA11XX-LINUX-DRIVER
    Download
  • BSPs and Device Drivers

    XJA11XX Ethernet Phy Real-Time Drivers AUTOSAR 4.4 (ISO26262) License

    FLEXERARev 1.0.4Apr 29, 2024 17:20:001 KBSWXJA11XX-SEPHY44D
    Download

Note: For better experience, software downloads are recommended on desktop.

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