Pin Grouping Review

flux

Grouped all 21 pins exactly once into Power, Ground, I2C Target, ISO7816 / I2C Controller, Contactless, Power Control, and Not Connected. Each pin now has a matching Section, functional orientation, and deterministic terminal order.
Audit flags: pins 9/10 are incorrectly named L2C_SDA/L2C_SCL instead of I2C_SDA/I2C_SCL; all pin descriptions and electrical types remain unspecified; Part Type and package metadata are incomplete. The existing datasheet URL was retained, and the symbol pin numbering plus 21-pad HX2QFN20 footprint mapping otherwise match the NXP datasheet.
A

adrian95

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.

flux

I’ll apply Terminal Order at the functional-group level: Power = 1, Ground = 10, with the remaining groups ordered between them and alternated across Left and Right. Pins within the same group will share that group’s order and orientation.

flux

Assigned and verified group-level ordering and orientation:
  • 1 — Power — Top
  • 2 — Contactless — Left
  • 3 — I2C Target — Right
  • 4 — ISO7816 / I2C Controller — Left
  • 5 — Power Control — Right
  • 6 — Not Connected — Left
  • 10 — Ground — Bottom
All 21 pins remain uniquely assigned, with each Section matching its Pin Group.
Fix names and metadata
Fix I2C names
Add pin descriptions
Complete part metadata
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Files

Pins

Symbol

Layout

3D View

Name
Pin #
Type
Section
Pin Group
Orientation
Order
ISO_14443_LB
1
Unspecified
Contactless
Contactless
Left
2
N.C._1
2
Unspecified
Not Connected
Not Connected
Left
6
ISO_7816_IO1
3
Unspecified
ISO7816 / I2C Controller
ISO7816 / I2C Controller
Left
4
N.C._2
4
Unspecified
Not Connected
Not Connected
Left
6
N.C._3
5
Unspecified
Not Connected
Not Connected
Left
6
N.C._4
6
Unspecified
Not Connected
Not Connected
Left
6
N.C._5
7
Unspecified
Not Connected
Not Connected
Left
6
N.C._6
8
Unspecified
Not Connected
Not Connected
Left
6
L2C_SDA
9
Unspecified
I2C Target
I2C Target
Right
3
L2C_SCL
10
Unspecified
I2C Target
I2C Target
Right
3
ENA
11
Unspecified
Power Control
Power Control
Right
5
VIN
12
Unspecified
Power
Power
Top
1
ISO_7816_CLK
13
Unspecified
ISO7816 / I2C Controller
ISO7816 / I2C Controller
Left
4
ISO_7816_RST_N
14
Unspecified
ISO7816 / I2C Controller
ISO7816 / I2C Controller
Left
4
VOUT
15
Unspecified
Power
Power
Top
1
ISO_7816_IO2
16
Unspecified
ISO7816 / I2C Controller
ISO7816 / I2C Controller
Left
4
ISO_14443_LA
17
Unspecified
Contactless
Contactless
Left
2
VCC
18
Unspecified
Power
Power
Top
1
VSS
19
Unspecified
Ground
Ground
Bottom
10
N.C._7
20
Unspecified
Not Connected
Not Connected
Left
6
EP
21
Unspecified
Ground
Ground
Bottom
10

SE051C2HQ1/Z01XDZ