Pin Function Grouping

A

adrian95

Looking at the datasheet of this component, can you group together pins by their functions?
for example for Power, 3v3, gnd_1 gnd_2 etc
NOTE: If you group them, can you not add the same pin if you already added them in a group? You should know which pin function is common for its function.

flux

I’ll check the component’s datasheet pin table and current project pin list, then group each physical pin once by its primary function.

flux

I found the VQFN/RGE pin table. I’ll now apply primary-function group labels so no pin appears in more than one group.

flux

Done. I grouped all 25 TCA9548ARGER VQFN pins from the TI datasheet, with each physical pin assigned to exactly one primary function group.
Groups applied:
  • Power: VCC
  • Ground: GND, EP
  • Controller I²C Bus: SDA, SCL
  • I²C Channels 0–7: SDx/SCx paired per channel
  • Address: A0, A1, A2
  • Reset: ~RESET
I also updated pin types and descriptions to match the datasheet, including pull-up guidance for the I²C and reset pins.
Verify pin grouping
Use broader groups
Check exposed pad
Add pin documentation
Review symbol layout
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Files

Pins

Symbol

Layout

3D View

SC7
Pin Number
17
SD0
Pin Number
1
SC6
Pin Number
15
A2
Pin Number
18
SD1
Pin Number
3
SD2
Pin Number
5
SC2
Pin Number
6
SD7
Pin Number
16
SD6
Pin Number
14
SC0
Pin Number
2
SC1
Pin Number
4
SC5
Pin Number
13
Name
Pin #
Type
Section
Pin Group
Orientation
Order
Sub-symbol
Pin Description
SD0
1
Bi-Directional
Communication
I2C Channel 0
Channel 0 serial data; pull up to VDPU0
SC0
2
Bi-Directional
Communication
I2C Channel 0
Channel 0 serial clock; pull up to VDPU0
SD1
3
Bi-Directional
Communication
I2C Channel 1
Channel 1 serial data; pull up to VDPU1
SC1
4
Bi-Directional
Communication
I2C Channel 1
Channel 1 serial clock; pull up to VDPU1
SD2
5
Bi-Directional
Communication
I2C Channel 2
Channel 2 serial data; pull up to VDPU2
SC2
6
Bi-Directional
Communication
I2C Channel 2
Channel 2 serial clock; pull up to VDPU2
SD3
7
Bi-Directional
Communication
I2C Channel 3
Channel 3 serial data; pull up to VDPU3
SC3
8
Bi-Directional
Communication
I2C Channel 3
Channel 3 serial clock; pull up to VDPU3
GND
9
Ground
Power
Ground
Ground
SD4
10
Bi-Directional
Communication
I2C Channel 4
Channel 4 serial data; pull up to VDPU4
SC4
11
Bi-Directional
Communication
I2C Channel 4
Channel 4 serial clock; pull up to VDPU4
SD5
12
Bi-Directional
Communication
I2C Channel 5
Channel 5 serial data; pull up to VDPU5
SC5
13
Bi-Directional
Communication
I2C Channel 5
Channel 5 serial clock; pull up to VDPU5
SD6
14
Bi-Directional
Communication
I2C Channel 6
Channel 6 serial data; pull up to VDPU6
SC6
15
Bi-Directional
Communication
I2C Channel 6
Channel 6 serial clock; pull up to VDPU6
SD7
16
Bi-Directional
Communication
I2C Channel 7
Channel 7 serial data; pull up to VDPU7
SC7
17
Bi-Directional
Communication
I2C Channel 7
Channel 7 serial clock; pull up to VDPU7
A2
18
Input
Control
Address
Address input 2; connect directly to VCC or ground
SCL
19
Bi-Directional
Communication
I2C
Controller-side serial clock bus; pull up to VDPUM
SDA
20
Bi-Directional
Communication
I2C
Controller-side serial data bus; pull up to VDPUM
VCC
21
Power In
Power
Power
Supply voltage
A0
22
Input
Control
Address
Address input 0; connect directly to VCC or ground
A1
23
Input
Control
Address
Address input 1; connect directly to VCC or ground

TCA9548ARGER