The TCAN4550 is a CAN FD controller with an integrated CAN FD transceiver supporting data rates up to 8 Mbps. The CAN FD controller meets the specifications of the ISO11898-1:2015 high speed controller area network (CAN) data link layer and meets the physical layer requirements of the ISO11898–2:2016 high speed CAN specification. The TCAN4550 provides an interface between the CAN bus and the system processor through serial peripheral interface (SPI), supporting both classic CAN and CAN FD, allowing port expansion or CAN support with processors that do not support CAN FD. The TCAN4550 provides CAN FD transceiver functionality: differential transmit capability to the bus and differential receive capability from the bus. The device supports wake up via local wake up (LWU) and bus wake using the CAN bus implementing the ISO11898-2:2016 Wake Up Pattern (WUP).
The device includes many protection features providing device and CAN bus robustness. These features include failsafe , internal dominant state timeout, wide bus operating range and a time-out watchdog as examples.
| Top documentation | Type | Title | Format options | Date |
|---|---|---|---|---|
| * | Data sheet | TCAN4550 Automotive Control Area Network Flexible Data Rate (CAN FD) Controller with Integrated Transceiver datasheet (Rev. A) | PDF | HTML | Jun 27, 2019 |
| Application brief | System Basis Chips (SBCs) 101: A Beginner’s Guide to CAN and LIN SBCs | PDF | HTML | Dec 3, 2025 | |
| Application note | TCAN455x Clock Optimization and Design Guidelines | PDF | HTML | Jul 26, 2021 | |
| User guide | TCAN45xx Software User's Guide | May 3, 2019 | ||
| Application note | TCAN4550 Watchdog Configuration Guide | May 1, 2019 | ||
| User guide | SPI to CAN FD SBC + LIN Transceiver BoosterPack User's Guide | Apr 1, 2019 | ||
| Technical article | CAN & LIN: take a look inside | PDF | HTML | Mar 1, 2018 |
For additional terms or required resources, click any title below to view the detail page where available.
The EVM can be used to evaluate the TCAN4550 SPI to CAN FD Controller and Transceiver solution. The CAN bus signals are easily accessed via a DB9 connector (or via header pins), and the digital interface (SPI lines plus GPIOs) is accessible via a single dual-row header. Input clocks to (...)
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| VQFN (RGY) | 20 | Ultra Librarian |
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