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Created December 11, 2020 23:26
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Update MCP39F511 Datasheet Updates
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gistfile1.txt
I have developed and open-source hardware breakout for the MCP39F511 Energy Monitor ASIC. The KiCAD design files are here. During board bringup I have encountered a couple of issues and I believe the datasheet should be updated to highlight these details and make life easier for future engineers.
1) The MCLR pin is attached to the embedded PIC microcontroller and needs to be pulled high on power up, requires a pull-up resistor <=10k .
2) There are 2 versions of this ASIC with default baud rates of 9600 and 115200 respectively. They are pin compatible, however hard to tell apart on sites such as Digikey / Mouser.
The datasheet should be updated to clearly state these details and ease bring-up of new systems. I will document this here and share as widely as possible to ensure future revisions contain this informations.
Regards,
Tisham.
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