Install this component

Paste this into Claude Code (VS Code panel, Adom editor, or terminal) to install:

Search the Adom Wiki for the library component "SX1278" (slug: sx1278) at https://wiki-ufypy5dpx93o.adom.cloud/wiki/libraries/sx1278. Pull down the KiCad symbol, footprint, and 3D model files from the wiki page's assets. Install them into my current KiCad project and register in sym-lib-table and fp-lib-table. If the page has a datasheet URL, save that too.
Manufacturer Semtech
Package QFN-28
Pins 29 pins (SPI, Digital I/O, RF, Crystal, System, Power)
LCSC C96099

Library View

Interactive symbol, footprint, and 3D model — hover pins for cross-highlighting.

SymbolGenerated Generated from pin data (KiCad symbol RF/SX1278 is multi-unit)
FootprintKiCad KiCad standard library: Package_DFN_QFN/QFN-28-1EP_4x4mm_P0.4mm_EP2.4x2.4mm
3DGenerated Generated pad visualization (Babylon.js)

Breakout Board

Auto-generated breakout molecule for SX1278 — all pins brought to 2mm-pitch headers with 4 corner machine pins on 8mm grid.

Pricing & Availability

Pin Configuration

SPIDigital I/ORFCrystalSystemPower
PinNameGroupFunction
SPI — SPI communication
23GNDSPIGround
24NSSSPISPI chip select, active low
25SCKSPISPI clock
26MOSISPISPI data in
Digital I/O — Configurable interrupt/status
4XTBDigital I/OCrystal oscillator output
5VBAT_RFDigital I/ORF supply
6GNDDigital I/OGround
7RFI_HFDigital I/ORF high-frequency input
8RFO_HFDigital I/ORF high-frequency output
9GNDDigital I/OGround
RF — Antenna and matching
12PA_BOOSTRFPA boost output
13GNDRFGround
Crystal — TCXO oscillator
20DIO5CrystalDigital I/O 5
21VBAT_DIGCrystalDigital supply
System — Reset
27MISOSystemSPI data out
Power — Supply and ground
1VR_PAPowerPA regulator output
2VBAT_ANAPowerAnalog supply
3XTAPowerCrystal oscillator input
10RFI_LFPowerRF low-frequency input
11RFO_LFPowerRF low-frequency output
14VBAT_DIGPowerDigital supply
15DIO0PowerDigital I/O 0
16DIO1PowerDigital I/O 1
17DIO2PowerDigital I/O 2
18DIO3PowerDigital I/O 3
19DIO4PowerDigital I/O 4
22NRESETPowerReset, active low
28GNDPowerGround
29GNDPowerGround (Exposed Pad)

AI Skill Technical Reference

Edit AI Skill

SX1278 — LoRa transceiver IC, 137-525MHz, QFN-28

Manufacturer: Semtech Package: QFN-28 LCSC: C96099

Description

The SX1278 is a LoRa transceiver IC from Semtech operating at 137-525MHz. Features spreading factor 6-12, bandwidth 7.8-500kHz, and -148dBm sensitivity. The core IC behind many LoRa modules including RFM95W.

Pin Configuration

Package: QFN-28

  • Pin 1: VR_PA — PA regulator output
  • Pin 2: VBAT_ANA — Analog supply
  • Pin 3: XTA — Crystal oscillator input
  • Pin 4: XTB — Crystal oscillator output
  • Pin 5: VBAT_RF — RF supply
  • Pin 6: GND — Ground
  • Pin 7: RFI_HF — RF high-frequency input
  • Pin 8: RFO_HF — RF high-frequency output
  • Pin 9: GND — Ground
  • Pin 10: RFI_LF — RF low-frequency input
  • Pin 11: RFO_LF — RF low-frequency output
  • Pin 12: PA_BOOST — PA boost output
  • Pin 13: GND — Ground
  • Pin 14: VBAT_DIG — Digital supply
  • Pin 15: DIO0 — Digital I/O 0
  • Pin 16: DIO1 — Digital I/O 1
  • Pin 17: DIO2 — Digital I/O 2
  • Pin 18: DIO3 — Digital I/O 3
  • Pin 19: DIO4 — Digital I/O 4
  • Pin 20: DIO5 — Digital I/O 5
  • Pin 21: VBAT_DIG — Digital supply
  • Pin 22: NRESET — Reset, active low
  • Pin 23: GND — Ground
  • Pin 24: NSS — SPI chip select, active low
  • Pin 25: SCK — SPI clock
  • Pin 26: MOSI — SPI data in
  • Pin 27: MISO — SPI data out
  • Pin 28: GND — Ground
  • Pin 29: GND — Ground (Exposed Pad)

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0 revisions · Updated 2026-03-02 17:31:36