Pin Grouping by Function


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 assign a consistent group-level order from Power (1) through Ground (10), alternate the remaining groups between left and right, and verify all 25 pins.
Assigned and verified the group-level ordering and orientation:
  • 1 Power: Top
  • 2 VDD / 3V3: Right
  • 3 Reset: Left
  • 4 Oscillator: Right
  • 5 GPIOA: Left
  • 6 Analog / GPIO: Right
  • 7 Reference: Left
  • 8 SWD: Right
  • 10 Ground: Bottom
Make every Section value exactly match its Pin Group, then preserve this order and orientation.
Updated every Section to exactly match its Pin Group. Existing terminal order and orientation were preserved.
Verify symbol layout
Check pin metadata
Match section groups

PA16/A8
Pin Number
12
PA9
Pin Number
8
VSS
Pin Number
4
PA4
Pin Number
7
VSS
Pin Number
25
PA20/A6/SWCLK
Pin Number
16
PA22/A4
Pin Number
18
PA18/A7
Pin Number
14
PA11
Pin Number
10
PA2/ROSC
Pin Number
5
NRST
Pin Number
2
PA15/A9
Pin Number
11
PA1
Pin Number
1
PA10
Pin Number
9
VCORE
Pin Number
23
VDD
Pin Number
3
PA25/A2
Pin Number
21
PA26/A1
Pin Number
22
PA17
Pin Number
13
PA23/VREF+
Pin Number
19
PA19/SWDIO
Pin Number
15
PA21/A5/VREF-
Pin Number
17
PA24/A3
Pin Number
20
PA0
Pin Number
24
PA3
Pin Number
6
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