RP2350B Pin Mapping


I rechecked the current RP2350B part: the reported issue appears incorrect. The QFN-80 numbering wraps around the package:
  • GPIO0–3 → pins 77–80
  • GPIO4–7 → pins 1–4
  • Pin 5 → IOVDD
  • GPIO8–15 → pins 6–9 and 11–14
So the existing GPIO terminal-to-pad mapping is internally consistent; FLUX-14940 likely resulted from assuming GPIO0 starts at physical pin 1. A definitive check against the latest Raspberry Pi RP2350 datasheet—and correction of the Linear issue—requires live research in Agent mode.
Continue in Agent Mode
I’ll verify the full QFN-80 pin sequence against Raspberry Pi’s datasheet, compare it with the current part, and identify whether the issue report or library mapping is wrong.
The cross-check is complete: the current Flux terminal map matches Raspberry Pi’s QFN-80 pinout for GPIO0–GPIO15. I found no GPIO pad-map correction to apply.
The FLUX-14940 report is incorrect; the current RP2350B library mapping is correct:
  • GPIO0–3 → pins 77–80
  • GPIO4–7 → pins 1–4
  • IOVDD → pin 5
  • GPIO8–11 → pins 6–9
  • DVDD → pin 10
  • GPIO12–15 → pins 11–14
QFN-80 numbering wraps around the package, which caused the mistaken interpretation. No part changes should be made; FLUX-14940 should be closed as invalid.

VREG_FB
VREG_VIN
Name
Pin #
Type
Section
Pin Group
Orientation
Order
Sub-symbol
Terminal Type
GPIO4
1
Bi-Directional
GPIO
Left
unspecified
GPIO5
2
Bi-Directional
GPIO
Left
unspecified
GPIO6
3
Bi-Directional
GPIO
Left
unspecified
GPIO7
4
Bi-Directional
GPIO
Left
unspecified
IOVDD
5
Power In
POWER
VDD
Right
unspecified
GPIO8
6
Bi-Directional
GPIO
Left
unspecified
GPIO9
7
Bi-Directional
GPIO
Left
unspecified
GPIO10
8
Bi-Directional
GPIO
Left
unspecified
GPIO11
9
Bi-Directional
GPIO
Left
unspecified
DVDD
10
Power In
POWER
DVDD
Left
unspecified
GPIO12
11
Bi-Directional
GPIO
Left
unspecified
GPIO13
12
Bi-Directional
GPIO
Left
unspecified
GPIO14
13
Bi-Directional
GPIO
Left
unspecified
GPIO15
14
Bi-Directional
GPIO
Left
unspecified
IOVDD
15
Power In
Power
VDD
Right
unspecified
GPIO16
16
Bi-Directional
GPIO
GPIO16
Left
unspecified
GPIO17
17
Bi-Directional
GPIO
GPIO17
Left
unspecified
GPIO18
18
Bi-Directional
GPIO
GPIO18
Left
unspecified
GPIO19
19
Bi-Directional
GPIO
Left
unspecified
GPIO20
20
Bi-Directional
GPIO
Left
unspecified
GPIO21
21
Bi-Directional
GPIO
Left
unspecified
GPIO22
22
Bi-Directional
GPIO
Left
unspecified
GPIO23
23
Bi-Directional
GPIO
Left
unspecified

RP2350B