Part Review and Datasheet Update

flux

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.

flux

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
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LR2021IMLTRT

LR2021IMLTRT thumbnail
IC RF TxRx Only General ISM > 1GHz LoRaWAN 32-VFQFN Exposed Pad
LR2021IMLTRT is a fourth-generation, long-range, low-power, multi-band LoRa® RF transceiver from Semtech, designed for IoT, LPWAN, satellite communication, smart metering, industrial automation, asset tracking, and wireless sensor networks. It supports operation across sub-GHz and 2.4 GHz frequency bands, offering excellent receiver sensitivity, high transmit power, and compatibility with multiple wireless protocols including LoRaWAN®, Bluetooth® LE PHY, Zigbee™, Thread®, Amazon Sidewalk, and Wi-SUN.
Key Features Multi-band operation: 150 MHz to 960 MHz and 1.5 GHz to 2.5 GHz Supports LoRa®, LoRaWAN®, LR-FHSS, FLRC, FSK, GFSK, GMSK, MSK, OOK, and O-QPSK Maximum data rate up to 2.6 Mbps High receiver sensitivity up to -141.5 dBm (LoRa mode) Transmit power up to +22 dBm (sub-GHz) Compatible with Bluetooth® LE 5.0 PHY, Thread®, Zigbee™, Amazon Sidewalk, Sigfox, Wi-SUN, and Z-Wave® Ultra-low power consumption with 470 nA sleep current Operating voltage range: 1.8 V to 3.7 V SPI interface with programmable GPIOs Operating temperature range: -40°C to +85°C Compact 32-pin QFN (5 mm × 5 mm) package for space-constrained designs. Hashtags
#Semtech #LR2021IMLTRT #LoRa #LoRaWAN #RFTransceiver #WirelessCommunication #IoT #LPWAN #BluetoothLE #Zigbee #Thread #WiSUN #AmazonSidewalk #AssetTracking #SmartMetering #IndustrialIoT #SatelliteCommunication #LowPowerDesign #EmbeddedSystems #RFIC

Properties

LR2021IMLTRT

Semtech

Integrated Circuits

mm.digikey.com/Volume0/opasdata/d220001/medias/docus/8924/600_62785538.LR20xxDatasheet_V2_1.pdf

IC

parametric-v1

creativecommons.org/licenses/by/4.0/

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