ATWILC3000 Pin Review


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ATWILC3000-MR110CA Part Review

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Date: 2026-07-23 Official Microchip datasheet used for review: ATWILC3000 Wi-Fi® Link Controller Module Data Sheet, DS70005327
Completed the ATWILC3000-MR110CA datasheet review and grouped every pin into one primary function with no duplicated physical pins. I also populated pin descriptions/types and created the detailed report here: ATWILC3000-MR110CA Part Review.
Open items:
  • Pin 34/35 labels appear swapped versus the Microchip datasheet: pin 34 should be GPIO21, pin 35 should be GPIO0.
  • Pin 37 is electrically correct as ground, but naming it PADDLE / PADDLE/VSS would better match the datasheet.
  • The stored datasheet URL is readable but appears to use HTTP; the HTTPS Microchip URL is preferable.
Suggested next steps:
  1. Rename/swap the pin 34 and pin 35 terminal labels.
  2. Rename pin 37 to make the exposed paddle explicit.
  3. Normalize pin 23 naming to SD_CMD/SPI_SCK.
  • Make the functional group more general.
  • Add a Section property to all pins, and apply the same value used in the Pin Group property to each pin's Section property.
Assign a Terminal Order from 1 to 10, starting with Power. Power should be Terminal Order 1, and Ground should be last, Terminal Order 10. For Orientation, set Power to "Top" and Ground to "Bottom." For the remaining sections/groups, you may decide the Terminal Order and Orientation yourself. For Orientation, distribute them between "Left" and "Right" — don't put everything on one side. Each group/section should have a different orientation.
I’ll generalize the pin groups, mirror each group into Section, and rebalance Terminal Order/Orientation with Power at top/order 1 and Ground bottom/order 10.
Updated all pins as requested.
Open items:
  • None for this grouping pass.
  • Existing pin-description note remains: pin 34/35 labels still appear swapped versus the datasheet, but I did not rename pins because this request was only for grouping/section/order/orientation.
Suggested next steps:
  1. Rename/swap pin 34 and pin 35 labels to match the datasheet.
  2. Rename pin 37 to PADDLE or PADDLE/VSS.
  3. Review the generated symbol visually and adjust left/right balance if you want a different layout.
Fix pin labels
Swap GPIO labels
Rename paddle pin
Normalize SD pin
Review symbol layout

3D view of the PCB of ATWILC3000-MR110CA

ATWILC3000-MR110CA