CAN FD transceivers exceed automotive requirements

Posted By : Nat Bowers
CAN FD transceivers exceed automotive requirements

Microchip announces a family of CAN FD (Controller Area Network Flexible Data-rate) transceivers which serve both the CAN and CAN FD protocols. As an interface between a CAN protocol controller and the physical two-wire CAN bus, the MCP2561FD and MCP2562FD transceivers help automotive and industrial manufacturers with today’s CAN communication needs and provide a path for the newer CAN FD networks that are increasingly in demand.

In-vehicle networking growth continues to be driven by the need for electronic monitoring and control. As application features increase in power train, body and convenience, diagnostics and safety, more ECUs are being added to existing CAN buses, causing automotive OEMs to become bandwidth limited. In addition, the end-of-line programming time for ECUs is on the rise due to more complex application programmes and calibration, which raises production-line costs. The emerging CAN FD bus protocol solves these issues by increasing the maximum data rate while expanding the data field from 8 up to 64 data bytes.

With their robustness and industry-leading features, including data rates of up to 8Mb/s, Microchip’s MCP2561FD and MCP2562FD transceivers enable customers to implement and realise the benefits of CAN FD. The transceivers provide typical standby current consumption of less than 5µA (one of the industry’s lowest, according to Microchip), helping to meet ECU low-power budget requirements. These devices support operation in the -40 to 150°C temperature range, enabling usage in harsh environments.

The MCP2561FD and MCP2562FD CAN FD transceivers is available in 8-pin PDIP, SOIC and 3x3mm DFN (leadless) packages, providing additional design flexibility for space-limited applications. The family also provides two options: The MCP2561FD comes in an 8-pin package and features a SPLIT pin. This SPLIT pin helps to stabilise the common mode in biased split-termination schemes. The MCP2562FD is available in an 8-pin package and features a Vio pin. This Vio pin can be tied to a secondary supply in order to internally level-shift the digital I/Os for easy MCU  interfacing. This is beneficial when a system is using an MCU at a Vdd less than 5V and eliminates the need for an external level translator, decreasing system cost and complexity.

The MCP2561FD and MCP2562FD transceivers are both available now for sampling and volume production.


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4th March 2020
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