Pin Grouping by Function


Expanded the parametric body to 720 × 1000 grid units, adding substantial horizontal label room and vertical spacing between sections and pin rows. Verified all 49 pins, functional groups, orientations, numbers, and mappings remain intact.
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 define ten ordered functional sections: Power, Analog, Clock, Reset, Boot, Debug, GPIOA, GPIOB, GPIOC, and Ground. Power will be order 1/top, Ground order 10/bottom, with the remaining sections alternated across left and right.
Assigned all ten functional orders and verified the rendering:
  1. Power — Top
  2. Analog — Left
  3. Clock — Right
  4. Reset — Left
  5. Boot — Right
  6. Debug — Left
  7. GPIOA — Right
  8. GPIOB — Left
  9. GPIOC — Right
  10. Ground — Bottom
Refine symbol layout
Set electrical pin types
Add pin descriptions
Verify symbol correctness

VBAT
Pin Number
1
PC13
Pin Number
2
PC14-OSC32_IN
Pin Number
3
PC15-OSC32_OUT
Pin Number
4
Name
Pin #
Type
Section
Pin Group
Orientation
Order
Sub-symbol
Symbol Size
VBAT
1
Unspecified
Power
Power
Top
1
PC13
2
Unspecified
GPIOC
GPIOC
Right
9
PC14-OSC32_IN
3
Unspecified
Clock
Crystal
Right
3
PC15-OSC32_OUT
4
Unspecified
Clock
Crystal
Right
3
PF0-OSC_IN
5
Unspecified
Clock
Oscillator
Right
3
PF1-OSC_OUT
6
Unspecified
Clock
Oscillator
Right
3
PG10-NRST
7
Unspecified
Reset
Control Bus
Left
4
PA0
8
Unspecified
GPIOA
GPIOA
Right
7
PA1
9
Unspecified
GPIOA
GPIOA
Right
7
PA2
10
Unspecified
GPIOA
GPIOA
Right
7
PA3
11
Unspecified
GPIOA
GPIOA
Right
7
PA4
12
Unspecified
GPIOA
GPIOA
Right
7
PA5
13
Unspecified
GPIOA
GPIOA
Right
7
PA6
14
Unspecified
GPIOA
GPIOA
Right
7
PA7
15
Unspecified
GPIOA
GPIOA
Right
7
PC4
16
Unspecified
GPIOC
GPIOC
Right
9
PB0
17
Unspecified
GPIOB
GPIOB
Left
8
PB1
18
Unspecified
GPIOB
GPIOB
Left
8
PB2
19
Unspecified
GPIOB
GPIOB
Left
8
VREF+
20
Unspecified
Analog
Reference
Left
2
VDDA
21
Unspecified
Analog
Analog
Left
2
PB10
22
Unspecified
GPIOB
GPIOB
Left
8
VDD_1
23
Unspecified
Power
VDD
Top
1

STM32G431CBU6TR