PN532 Part Audit


Worked for 5 mins 49 sec
Thought for 10 sec — Planning project execution
Referenced guidance.
Created 4 tasks.
1/4 Inspect all existing part metadata, symbol pins, and footprint geometry

Inspect all existing part metadata, symbol pins, and footprint geometry

Find and verify the official manufacturer datasheet

Update the Datasheet property if missing

Cross-check pinout, package, footprint, and descriptions; summarize mismatches

Thought for 13 sec
Thought for 6 sec — Auditing project details
Referenced guidance.
Thought for 5 sec — Inspecting project metadata
Getting project info.
Reading symbol pins.
Reading schematic details.
Reading layout details.
Reading project assets.
Thought for 7 sec — Finding official datasheets
Reading the BOM.
Thought for 44 sec — Searching for footprint dimensions
Thought for 4 sec — Gathering project details
Found 2 results for PN5321A3HN/C106,51.
Thought for 9 sec — Checking project discrepancies
Read nxp.com.
Thought for 4 sec — Ensuring comprehensive report
Completed 9 design checks — found 2 issues.
Thought for a moment
Clarifying pin mismatches
I need to compile a complete mismatch list. The names match, but they have the N.C suffix for decoration, which is fine. However, there’s an issue with unspecified types versus the datasheet types. It looks like all 40 pins' descriptions and groups are missing, which complicates things. I must classify the pin type mismatches and list them to help the user. The extra symbol pin isn't listed in the datasheet; its dimensions are also off, which could be problematic.
Assessing pin layout issues
I see that the Pin1 marker is located at (-3.375, -3) in the EDA tool, and the pad is at (-2.95, -2.25), suggesting they share a corner. However, I need to clarify the courtyard and dimensions, ensuring there's no overlap with the pads. The exposed pad is marked as pin 41, but the datasheet doesn’t list its electrical type, which could be risky. Also, I'm missing essential metadata, and there seems to be confusion between the project description and the library. Overall, this setup isn't safe for production yet.
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.
Yes. I’ll assign every physical pin to exactly one broad functional group based on its primary datasheet function, keep Section equal to Pin Group, place Power first and Ground last, and avoid all duplicate group membership.
Created a project doc

PN5321A3HN/C106,51 Part Audit and Pin Grouping

View Document

The exact manufacturer order code is PN5321A3HN/C106,51 (NXP Semiconductors). The official datasheet is PN532/C1, and the package drawing is...
Grouped all 41 pins by their primary function with no duplicate membership; Section matches Pin Group, and pins 1–40 now include datasheet-based types and descriptions. The audit also found a production-critical exposed-pad paste mismatch, and I filed an internal part-quality report.
Open item
  • EP pin 41 remains electrically unspecified because the datasheet does not explicitly define its connection.
  • The exposed-pad paste pattern should be corrected before production.
Fix metadata and footprint
Fix footprint paste
Fill missing metadata
Review symbol rendering
Run part checks

SIGIN
Pin Number
36
SCK_/_P72
Pin Number
30
TVDD
Pin Number
5
VBAT
Pin Number
40
LOADMOD
Pin Number
2
AUX2
Pin Number
13
RSTPD_N
Pin Number
38
P70_IRQ
Pin Number
25
N.C._3
Pin Number
22
P31_/_UART_TX
Pin Number
31
MISO_/_P71
Pin Number
29
EP
Pin Number
41
PVDD
Pin Number
23
P33_INT1
Pin Number
33
SIGOUT
Pin Number
35
TVSS2
Pin Number
7
VMID
Pin Number
9
SVDD
Pin Number
37
I0
Pin Number
16
AUX1
Pin Number
12
MOSI_/_SDA_/_HSU_TX
Pin Number
28
TVSS1
Pin Number
3
RX
Pin Number
10
NSS_/_P50_SCL_/_HSU_RX
Pin Number
27
DVDD
Pin Number
39
DVSS
Pin Number
1
AVSS
Pin Number
11
OSCIN
Pin Number
14
P34_/_SIC_CLK
Pin Number
34
P35
Pin Number
19
TX2
Pin Number
6
N.C._2
Pin Number
21
I1
Pin Number
17
AVDD
Pin Number
8
P32_INT0
Pin Number
32
P30_/_UART_RX
Pin Number
24
TESTEN
Pin Number
18
OSCOUT
Pin Number
15
RSTOUT_N
Pin Number
26
N.C._1
Pin Number
20
TX1
Pin Number
4

PN5321A3HN/C106,51