Part Review and Datasheet Update


Review all available part information (MPN, package, pin count, description, properties). If no datasheet URL is already set, search the web for the official datasheet and update the part's Datasheet property with the URL. Then cross-check the schematic symbol, footprint, and pin descriptions against the datasheet. Summarize key specs and flag any mismatches.
I’ll inspect the part metadata, find/update the official datasheet if needed, then compare the symbol, footprint, and pin descriptions against the datasheet and summarize any mismatches.
The part project has no Datasheet URL set, and the official Semtech product page doesn’t expose a public datasheet PDF in the accessible page content. I’m checking alternate official/resource pages and distributor references before deciding whether to flag it as unavailable rather than setting a non-datasheet link.
Completed the LR2021IMLTRT part review and saved the detailed findings in LR2021IMLTRT Part Review.
Open items:
  • No public official Semtech LR2021 datasheet PDF was found, so I did not set the Datasheet URL to a non-datasheet page.
  • Pin-by-pin verification is blocked until the official Semtech datasheet/package drawing is available.
  • Main flagged issue: exposed pad is represented as GND pin 0; plausible for 32-VFQFN EP, but it should be confirmed and possibly renamed EP/GND.
Suggested next steps:
  1. Upload or provide Semtech’s official LR2021 datasheet if you have access.
  2. Confirm whether exposed pad numbering should be 0, 33, or EP.
  3. I can then update the Datasheet URL and correct any symbol/footprint mismatches.
Use uploaded datasheet
Fix exposed pad
Search gated docs
Run ERC DRC
Improve pin descriptions

Name
Pin #
Type
Part Type
Pin Orientation
Terminal Order
EP
0
Power In
Terminal
Bottom
VR_PA
1
Power In
Terminal
VPAX2
2
Power In
Terminal
NTC
3
Passive
Terminal
XTA
4
Input
Terminal
XTB
5
Input
Terminal
VTCXO/VNTC
6
Power In
Terminal
DIO11
7
Bi-Directional
Terminal
DIO10
8
Bi-Directional
Terminal
DIO9
9
Bi-Directional
Terminal
DIO8
10
Bi-Directional
Terminal
DIO7
11
Bi-Directional
Terminal
VDCC1
12
Power In
Terminal
Top
VPAX1
13
Power In
Terminal
LXB
14
Passive
Terminal
GND_DCC
15
Power In
Terminal
LXA
16
Passive
Terminal
VBAT
17
Power In
Terminal
Top
DIO6
18
Bi-Directional
Terminal
DIO5
19
Bi-Directional
Terminal
~{RESET}
20
Input
Terminal
MISO
21
Output
Terminal
MOSI
22
Input
Terminal

LR2021IMLTRT