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The Controller Area Network (CAN) bus is the backbone of modern automotive and industrial communication. Originally developed by Bosch, CAN allows microcontrollers and devices to communicate without a host computer. To ensure global interoperability, the International Organization for Standardization (ISO) established the ISO 11898 series.
Are you designing for or CAN FD (5 Mbps) ?
ISO 11898-2 standard specifies the High-Speed Physical Medium Attachment (HS-PMA) iso 11898-2 pdf download
Guide to Accessing and Utilizing the Standard
Whether you're a manufacturer, engineer, or developer, this article provides a comprehensive guide to the ISO 11898-2 standard and its implementation. By following the guidelines and recommendations outlined in this article, you can ensure that your CAN bus system meets the requirements of the standard and performs optimally in your application. The Controller Area Network (CAN) bus is the
If you are a student, researcher, or work in a corporate R&D department, your institution may provide access via subscription services (like IEEE Xplore or TechStreet), or you can view the standard at university libraries that participate in "Standards Info Point" programs.
| Feature | | ISO 11898-3 (Low-Speed) | | :--- | :--- | :--- | | Speed | Up to 1 Mbit/s | Up to 125 kbit/s | | Termination | Required (usually 120Ω) | Split termination required | | Fault Tolerance | If one wire breaks, communication fails | If one wire breaks, communication continues | | Usage | Engine management, motion control | Body electronics (windows, mirrors) | Are you designing for or CAN FD (5 Mbps)
The "high-speed" designation is key: ISO 11898-2 specifies the physical layer for CAN networks operating at transmission rates of up to 1 Mbit/s over a twisted-pair bus. This high-speed physical layer is what enables real-time, reliable communication between electronic control units (ECUs) throughout a vehicle or industrial system.
American engineers often purchase through the ANSI Webstore. It usually offers a discounted "ANSI Member Price" of $268.00 USD for the 2024 edition, compared to the full list price.
Understanding ISO 11898-2: The High-Speed CAN Bus Standard The Controller Area Network (CAN bus) is the backbone of modern automotive and industrial communication networks. Originally developed by Bosch in the 1980s, CAN has evolved into a highly standardized protocol managed by the International Organization for Standardization (ISO).
: Requires a 120-Ohm resistor at each extreme end of the bus to prevent signal reflections. Evolution and Merging of Standards
