Teensy 4.1 VIN Pin Verification

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ifaraz34

flux

READ-ONLY verification only, do NOT modify or publish this library part. Verify Teensy4.1 schematic pin named5V number48 maps to physical VIN pad versus USBhost5V/VUSB using footprint pad coordinates plus official PJRC pinout https://www.pjrc.com/store/teensy41.html and schematic. Consuming board needs connect external5.05V to VIN and cut underside VIN-VUSB pads before USB connection. Report exact pad/coordinate mapping evidence or defect; no guessing. Also confirm 3V pins15/46 both correct and ground1/34/47. Keep concise.

flux

I’ll compare the library pad coordinates and pin assignments against PJRC’s official pinout and schematic, without changing the part.

flux

Verified: library pin 48 (5V) maps to physical VIN, not VUSB or USB-host 5V; the footprint’s two outer rows match PJRC’s official pinout, with these local pad-center coordinates in mm:

Table

Library pin/name(x, y) mmPhysical function
48 / 5V(15.24, 0)VIN
15 / 3V(0, −35.56)3.3V, between GPIO12 and GPIO24
46 / 3V3(15.24, −5.08)3.3V, between GND and GPIO23
1 / G_1(0, 0)GND, opposite VIN
34 / G_2(15.24, −35.56)GND, between GPIO13 and GPIO41
47 / G_3(15.24, −2.54)GND, between VIN and 3.3V
No mapping defect found in these six pins: connect external 5.05V to pin 48/VIN and common GND, and cut the underside VIN–VUSB bridge before connecting USB, as PJRC specifies; the direct schematic image could not be independently read, so schematic-level verification remains incomplete, and nothing was modified or published.
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Files

Pins

Symbol

Layout

3D View

Name
Pin #
Type
Section
Pin Group
Orientation
Order
Sub-symbol
Terminal Type
G_1
1
Unspecified
unspecified
0_
2
Unspecified
unspecified
1_
3
Unspecified
unspecified
2_
4
Unspecified
unspecified
3_
5
Unspecified
unspecified
4_
6
Unspecified
unspecified
5_
7
Unspecified
unspecified
6_
8
Unspecified
unspecified
7_
9
Unspecified
unspecified
8_
10
Unspecified
unspecified
9_
11
Unspecified
unspecified
10_
12
Unspecified
unspecified
11_
13
Unspecified
unspecified
12_
14
Unspecified
unspecified
3V
15
Unspecified
unspecified
24_
16
Unspecified
unspecified
25_
17
Unspecified
unspecified
26_
18
Unspecified
unspecified
27_
19
Unspecified
unspecified
28_
20
Unspecified
unspecified
29_
21
Unspecified
unspecified
30_
22
Unspecified
unspecified
31_
23
Unspecified
unspecified

Teensy 4.1