Question about Microchip CAN transceiver

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aqua_life

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Hi,
I have a project to communicate with a CAN bus on a vehicle with bus speed 500 Kbits/s.
I am using Microchip PIC18F25K80 and the Microchip CAN transceiver MCP2551.
Now I found that Microchip also has CAN transceiver ATA6561.
Could I replace MCP2551 with ATA6561 ?
From the datasheet it seems that it will work correctly.
The ATA6561 is cheaper and easier to find on electronic shops.

If someone can confirm, I appreciate your help.
 

Hi,

I miss the links to the datasheets.

Do you expect pin compatibility, power consumption compatibility, functional (give limits) compatibility, timing compatibility, voltage levels...

Klaus
 

Mostly similar, but there are a pair of pins with significantly different functionality.
 

Thank you for your help.
I have already saw those different pins on the datasheet.
For all the rest of the compatibility I think I will try this chip on my real project and see how it goes.

Thanks
 

Indeed, the CANbus physical layer and the TX, RX timing will be identical. Plus those pins are in the same place for both devices.
If you already have a board laid out for the previous IC, you may modify it with some deadbug components.
 

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