Gateway automotive reference design


Design files


Automotive trends are rapidly evolving, and as a result, new domain- and zonal-based gateway architectures are being used to efficiently handle the ever-increasing amount of data coming into and moving throughout the vehicle, and getting sent to the cloud. A properly functioning domain (or zonal) gateway safely and securely facilitates data movement between ECUs within a functional domain/zone and the centralized gateway. The centralized gateway safely and securely moves data between numerous domains/zones of the vehicle.

This TIDEP-01022 automotive gateway reference design (GCARD) is an easy-to-use, 8-layer PCB detailed design for use as a centralized, domain or zonal controller and is based on our Jacinto™ 7 DRA821 processors. It serves as a starting point for OEMs and Tier 1 suppliers to easily and quickly create a fully functional DRA821 solution in the automotive space.

DRA821 processors are high-performance heterogeneous SoCs that integrate legacy automotive connectivity (LIN and CAN) and high-speed interfaces such as PCIe, USB, a 4-port Gigabit Ethernet switch, as well as numerous safety and security features.

This design uses a single PMIC (TPS6594x) power architecture with on board OSPI, eMMC, and LPDDR4 memory, as well as debug functionality. The board has hardware connectors that showcase and support a diverse set of communication protocols including five Ethernet ports, 10 CAN-FD ports, four LIN ports, and a PCIE connector. Headers have also been included for easy access to serial protocols such as SPI, UART, GPIOS, and I²C.

The high levels of integration in DRA821 processors help lower system costs and make the device useful in a wide variety of gateway use cases.

More information on available device capabilities, peripherals, and functional safety and security features is available in the DRA821 data manual.

  • Integrated Ethernet switch and external Ethernet switch with automotive connectors
  • Connect to PCIe, OSPI, eMMC and Multi CAN / LIN array with wakeup functionality
  • 3200 MT/s LPDDR4
  • Early CAN response
  • Optimized power management via TPS6594x
  • Gateway application stack (AutoSAR)
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A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.


Reference design overview and verified performance test data

TIDM738.PDF (892 K)

Detailed schematic diagram for design layout and components

TIDM739.PDF (335 K)

Complete listing of design components, reference designators, and manufacturers/part numbers

TIDM740.ZIP (227 K)

Detailed overview of design layout for component placement

TIDM742.ZIP (3704 K)

Files used for 3D models or 2D drawings of IC components


Design file that contains information on physical board layer of design PCB

TIDM741.PDF (141 K)

PCB layer plot file used for generating PCB design layout


Includes TI products in the design and potential alternatives.

Arm-based processors

DRA821UDual Arm Cortex-A72, quad Cortex-R5F, 4-port Ethernet switch, and a PCIe controller

Data sheet: PDF | HTML
Boost converters (integrated switch)

TPS6108810-A Fully-Integrated Synchronous Boost Converter

Data sheet: PDF | HTML
Buck controllers (external switch)

LM5141Low Iq, Wide Input Range Synchronous Buck Controller

Data sheet: PDF | HTML
Buck converters (integrated switch)

TPS62810-Q1Automotive 2.75-V to 6-V, 4-A step-down converter in a 2mm x 3mm wettable-flanks QFN package

Data sheet: PDF | HTML
Buck converters (integrated switch)

TPS62810M2.75-V to 6-V, 4-A step-down converter in a 2-mm x 3-mm QFN package with -55C extended temperature

Data sheet: PDF | HTML
CAN & LIN transceivers & SBCs

TCAN1046-Q1Automotive High Speed Dual CAN Transceiver

Data sheet: PDF | HTML
CAN & LIN transceivers & SBCs

TLIN1022-Q1Dual Local Interconnect Network (LIN) Transceiver With Dominant State Timeout

Data sheet: PDF | HTML
Ethernet PHYs

DP83TG720S-Q11000BASE-T1 automotive Ethernet PHY with RGMII & SGMII

Data sheet: PDF | HTML
Load switches

TPS229655.7-V, 6-A, 16-mΩ load switch with adj. rise time and optional output discharge

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
* Design guide Automotive and IoT Gateway Ref Design Based on the Jacinto DRA821 Processor (Rev. A) PDF | HTML Dec. 30, 2020

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