Part Audit and Pin Grouping


Created a project doc

LMP91000SDX/NOPB Part Audit

View Document

Reviewed the part identity and properties, official Texas Instruments datasheet, schematic symbol terminals, functional grouping, PCB footpr...
Completed the audit and grouped all 15 terminals by function with no duplicated pins. I also replaced the distributor link with TI’s official datasheet; the main issues are unspecified pin types/descriptions and footprint dimensions that differ from TI’s recommended NHL land pattern.
  • Make the functional group more general.
  • 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.
I’ll consolidate the pins into broader groups, assign group-level order from Power = 1 through Ground = 10, and alternate the non-power groups between Left and Right while keeping Power Top and Ground Bottom.
Updated and verified all 15 pins:
  • Power: order 1, Top
  • Digital: order 3, Left
  • Analog: order 5, Right
  • Sensor: order 7, Left
  • Other: order 8, Right
  • Ground: order 10, Bottom
Each pin belongs to exactly one group, and every Section matches its Pin Group.
Fix metadata issues
Correct footprint geometry
Run part review
Update audit file

NC
Pin Number
5
C2
Pin Number
9
AGND
Pin Number
7
RE
Pin Number
13
SDA
Pin Number
4
VREF
Pin Number
11
DGND
Pin Number
1
SCL
Pin Number
3
CE
Pin Number
14
MENB
Pin Number
2
C1
Pin Number
10
VDD
Pin Number
6
EP
Pin Number
15
WE
Pin Number
12
VOUT
Pin Number
8
Name
Pin #
Type
Section
Pin Group
Orientation
Order
Sub-symbol
DGND
1
Unspecified
Ground
Ground
Bottom
10
MENB
2
Unspecified
Digital
Digital
Left
3
SCL
3
Unspecified
Digital
Digital
Left
3
SDA
4
Unspecified
Digital
Digital
Left
3
NC
5
Unspecified
Other
Other
Right
8
VDD
6
Unspecified
Power
Power
Top
1
AGND
7
Unspecified
Ground
Ground
Bottom
10
VOUT
8
Unspecified
Analog
Analog
Right
5
C2
9
Unspecified
Analog
Analog
Right
5
C1
10
Unspecified
Analog
Analog
Right
5
VREF
11
Unspecified
Analog
Analog
Right
5
WE
12
Unspecified
Sensor
Sensor
Left
7
RE
13
Unspecified
Sensor
Sensor
Left
7
CE
14
Unspecified
Sensor
Sensor
Left
7
EP
15
Unspecified
Ground
Ground
Bottom
10

LMP91000SDX/NOPB