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External CAN and CAN FD Controllers + Transceiver

Flexible Solutions for Adding CAN or CAN FD to Your Microcontroller

Our external CAN controllers are economical and flexible solutions for using the SPI interface to add CAN or CAN Full Duplex (CAN FD) capability to the microcontroller (MCU) of your choice or extend the number of CAN FD channels if your MCU doesn’t have enough. We also provide devices that enable you to quickly and easily add CAN FD capability to an existing design without having to change your system MCU. Our external CAN FD controller solutions maximize reuse of your existing hardware and firmware, so you can implement the CAN FD protocol’s faster data rates and data byte message expansion in your system without a complete redesign. Our ecosystem of development tools, software and demo code will help speed up your application development and lower your design risk.

What Type of CAN Peripheral Device Do You Need?

External CAN and CAN FD Controllers

Use one of these devices to add CAN capability or expand the number of CAN FD channels in MCUs used in automotive and industrial applications.

Key Benefits:

Flexible solution for use with any MCU
Support for CAN 2.0B and CAN FD networks
Single external component uses SPI interface to:
- Easily add CAN FD capability to an existing design
- Add extra CAN or CAN FD channels to an MCU
ISO 11898-1:2015 and ISO 11898-2 compliant
Support for wide operating range of 2.7V to 5.5V
Many package options available
High-temperature operation of −40°C to +150°C

External CAN Controllers + Transceiver

Integrating both a CAN 2.0B controller and a high-speed CAN transceiver in a single package, these devices provide a complete CAN solution that can be easily added to an MCU.

Key Benefits:

Minimize application component count
Support for CAN 2.0 or CAN FD networks
Up to 8 Mbps operation
Very low standby current (10 µA, typ)
Up to 17 MHz SPI clock speed
ISO 11898-1:2015 and ISO 11898-2 compliant
Support for wide operating range of 2.7V to 5.5V
Available in 28-pin SSOP and 28-pin QFN packages
High-temperature operation of −40°C to +150°C

Featured Product

MCP2518FD External CAN FD Controller With SPI Interface

This cost-effective and small-footprint external CAN FD controller can be easily added to an MCU with an available SPI interface. It enables you to implement a CAN FD channel in an MCU that is either lacking a CAN FD peripheral or that doesn't have enough CAN FD channels for your application.

External CAN FD controller with support for CAN 2.0B and CAN FD networks
Low-power mode
AEC-Q100 Grade 0 and 1 qualified

Explore MCP2518FD

CAN and CAN FD Functional Safety

The increasing complexity of functions in today’s cars is driving home the importance of functional safety standards. Driver assistance and safety systems in modern cars need robust and dependable electronic components. The safety risks resulting from random hardware failures or systematic hardware/software errors must be reduced as much as possible throughout the product’s foreseeable lifetime.

Our motor drivers offer a variety of safety features to help you implement a more reliable motor control design.

Learn More

Learning

CAN and CAN FD Training Courses

Microchip University offers a variety of online training courses to empower you to master the art of design embedded control systems. Use these links to register for these CAN and CAN FD topics: