component
EFR32MG21A020F1024IM32-BR
Public Made by Adomby adom
SKYWORKS SILICON LABS RF Transceiver ICs, QFN-32-EP(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
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"type": "component",
"slug": "efr32mg21a020f1024im32-br",
"title": "EFR32MG21A020F1024IM32-BR",
"brief": "SKYWORKS SILICON LABS RF Transceiver ICs, QFN-32-EP(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"version": "0.1.0",
"license": "CC-BY-SA-4.0",
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"rf and wireless",
"efr32mg21a020f1024im32-br",
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"extractor-text"
],
"component": {
"mpn": "EFR32MG21A020F1024IM32-BR",
"manufacturer": "SKYWORKS SILICON LABS",
"package": "QFN-32-EP(4x4)",
"pin_count": 33,
"category": "RF And Wireless",
"subcategory": "RF Transceiver ICs",
"datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588896353862750208",
"parts": {
"symbol": "efr32mg21a020f1024im32-br.kicad_sym",
"footprint": "efr32mg21a020f1024im32-br.kicad_mod",
"model_3d": "efr32mg21a020f1024im32-br-hero.glb",
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"lbr": "efr32mg21a020f1024im32-br.lbr"
},
"distributor_links": {
"lcsc": "C2151614"
},
"distributor_check": {
"checked_at": "2026-10-18T12:27:49Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": null,
"status": "quota"
},
"mouser": {
"pn": null,
"status": "quota"
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},
"pins": [
{
"number": "1",
"name": "PC00",
"type": "bidirectional",
"description": "General-purpose I/O pin on Port C; Table 6.2 lists its alternate function as GPIO.EM4WU6 (EM4 wakeup)."
},
{
"number": "2",
"name": "PC01",
"type": "bidirectional",
"description": "General-purpose I/O pin on Port C."
},
{
"number": "3",
"name": "PC02",
"type": "bidirectional",
"description": "General-purpose I/O pin on Port C."
},
{
"number": "4",
"name": "PC03",
"type": "bidirectional",
"description": "General-purpose I/O pin on Port C."
},
{
"number": "5",
"name": "PC04",
"type": "bidirectional",
"description": "General-purpose I/O pin on Port C."
},
{
"number": "6",
"name": "PC05",
"type": "bidirectional",
"description": "General-purpose I/O pin on Port C; Table 6.2 lists its alternate function as GPIO.EM4WU7 (EM4 wakeup)."
},
{
"number": "7",
"name": "HFXTAL_I",
"type": "input",
"description": "High-frequency crystal oscillator input for the HFXO."
},
{
"number": "8",
"name": "HFXTAL_O",
"type": "output",
"description": "High-frequency crystal oscillator output for the HFXO."
},
{
"number": "9",
"name": "RESETn",
"type": "input",
"description": "Active-low reset pin; its input thresholds are proportional to DVDD and its internal pull-up connects to DVDD (Section 4.1.9 note 2)."
},
{
"number": "10",
"name": "RFVDD",
"type": "power_in",
"description": "Radio power supply."
},
{
"number": "11",
"name": "RFVSS",
"type": "power_in",
"description": "Radio ground."
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{
"number": "12",
"name": "RF2G4_IO2",
"type": "bidirectional",
"description": "2.4 GHz single-ended RF input/output; one of two antenna pins that interface to the LNAs and PAs, with integrated switches selecting the active path (Section 3.2.1)."
},
{
"number": "13",
"name": "RF2G4_IO1",
"type": "bidirectional",
"description": "2.4 GHz single-ended RF input/output; one of two antenna pins that interface to the LNAs and PAs, with integrated switches selecting the active path (Section 3.2.1)."
},
{
"number": "14",
"name": "PAVDD",
"type": "power_in",
"description": "Power amplifier (PA) power supply."
},
{
"number": "15",
"name": "PB01",
"type": "bidirectional",
"description": "General-purpose I/O pin on Port B; Table 6.2 lists its alternate function as GPIO.EM4WU3 (EM4 wakeup)."
},
{
"number": "16",
"name": "PB00",
"type": "bidirectional",
"description": "General-purpose I/O pin on Port B."
},
{
"number": "17",
"name": "PA00",
"type": "bidirectional",
"description": "General-purpose I/O pin on Port A."
},
{
"number": "18",
"name": "PA01",
"type": "bidirectional",
"description": "General-purpose I/O pin on Port A; Table 6.2 lists its alternate function as GPIO.SWCLK (serial wire clock)."
},
{
"number": "19",
"name": "PA02",
"type": "bidirectional",
"description": "General-purpose I/O pin on Port A; Table 6.2 lists its alternate function as GPIO.SWDIO (serial wire data)."
},
{
"number": "20",
"name": "PA03",
"type": "bidirectional",
"description": "General-purpose I/O pin on Port A; Table 6.2 lists alternate functions as GPIO.SWV, GPIO.TDO and GPIO.TRACEDATA0."
},
{
"number": "21",
"name": "PA04",
"type": "bidirectional",
"description": "General-purpose I/O pin on Port A; Table 6.2 lists alternate functions as GPIO.TDI and GPIO.TRACECLK."
},
{
"number": "22",
"name": "PA05",
"type": "bidirectional",
"description": "General-purpose I/O pin on Port A; Table 6.2 lists its alternate function as GPIO.EM4WU0 (EM4 wakeup)."
},
{
"number": "23",
"name": "PA06",
"type": "bidirectional",
"description": "General-purpose I/O pin on Port A."
},
{
"number": "24",
"name": "DECOUPLE",
"type": "passive",
"description": "Decouple output for the on-chip voltage regulator; an external decoupling capacitor is required at this pin."
},
{
"number": "25",
"name": "DVDD",
"type": "power_in",
"description": "Digital power supply; DVDD BOD threshold is 1.62 V (falling) to 1.71 V (rising) in EM0 and EM1 (Section 4.1.13.1)."
},
{
"number": "26",
"name": "AVDD",
"type": "power_in",
"description": "Analog power supply; main analog supply range is 1.71 V to 3.8 V for the ADC (Table 4.29)."
},
{
"number": "27",
"name": "IOVDD",
"type": "power_in",
"description": "Digital I/O power supply; GPIO input thresholds are proportional to IOVDD (Section 4.1.9 note 1)."
},
{
"number": "28",
"name": "PD04",
"type": "bidirectional",
"description": "General-purpose I/O pin on Port D."
},
{
"number": "29",
"name": "PD03",
"type": "bidirectional",
"description": "General-purpose I/O pin on Port D."
},
{
"number": "30",
"name": "PD02",
"type": "bidirectional",
"description": "General-purpose I/O pin on Port D; Table 6.2 lists its alternate function as GPIO.EM4WU9 (EM4 wakeup)."
},
{
"number": "31",
"name": "PD01",
"type": "bidirectional",
"description": "General-purpose I/O pin on Port D; Table 6.2 lists alternate functions as LFXO.LFXTAL_I and LFXO.LF_EXTCLK."
},
{
"number": "32",
"name": "PD00",
"type": "bidirectional",
"description": "General-purpose I/O pin on Port D; Table 6.2 lists its alternate function as LFXO.LFXTAL_O."
},
{
"number": "33",
"name": "EP",
"type": "passive",
"description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
}
],
"provenance": {
"extractor": "extract_pins 0.3",
"factory_chain": {
"factory": "2.0.0",
"extractor": "extract_pins 0.3",
"primary_model": "claude-haiku-5-5",
"primary_mode": "text",
"consensus_model": "claude-sonnet-5-5",
"consensus": "agreed",
"guards": "pin_guards 0.1: passed",
"guard_notes": [
"extractor flagged: The center ground pad (exposed thermal pad) of the QFN32 package is not numbered in Table 6.1 and is; The requested MPN ends in '-BR', but the datasheet ordering table (Table 2.1, page 3) lists the base; Pin descriptions for some pins (for example the RF pins, DECOUPLE, and the power pins) come from Tab",
"exposed pad 33 added from the footprint"
],
"pages_sent": 35,
"cost_usd": 0.1251,
"at": "2026-10-18T12:25:38"
},
"datasheet": {
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"sha256": "cf5d9c7d572ffdb5",
"source_tier": "lcsc"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
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"described": 33,
"cites_pages": true,
"refuses_to_fabricate": true
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"checked": "2026-10-18",
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{
"file": "efr32mg21a020f1024im32-br-etched.step",
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"metadata": {
"specs": {
"Manufacturer": "SKYWORKS SILICON LABS",
"Package": "QFN-32-EP(4x4)",
"Category": "RF And Wireless",
"Pins": "33"
},
"appearance": {
"housing": {
"quote": "4. Recommended card reflow profile is per the JEDEC/IPC J-STD-020 specification for Small Body Components.",
"page": 70,
"doc": "ds.pdf",
"material": "PC"
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"version": 1,
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{
"name": "Storage temperature range",
"symbol": "TSTG",
"kind": "absolute_maximum",
"unit": "°C",
"min": -50,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 14,
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{
"name": "Junction temperature",
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{
"name": "Voltage on any supply pin",
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"source": "datasheet"
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{
"name": "Voltage ramp rate on any supply pin",
"symbol": "VDDRAMPMAX",
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"unit": "V / µs",
"min": null,
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{
"name": "Voltage on HFXO pins",
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{
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"conditions": "Printed max is VIOVDD + 0.3 (expression, not a number)",
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{
"name": "Input RF level on pins RF2G4_IO1 and RF2G4_IO2",
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"min": null,
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"source_page": 14,
"source": "datasheet"
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{
"name": "Absolute voltage on RF pins RF2G4_IOx",
"symbol": "VMAX2G4",
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"unit": "V",
"min": -0.3,
"typ": null,
"max": null,
"conditions": "Printed max is VPAVDD (expression, not a number)",
"source_page": 14,
"source": "datasheet"
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{
"name": "Total current into VDD power lines",
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{
"name": "Total current into VSS ground lines",
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"kind": "absolute_maximum",
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"min": null,
"typ": null,
"max": 200,
"conditions": "Sink",
"source_page": 14,
"source": "datasheet"
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{
"name": "Current per I/O pin",
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"unit": "mA",
"min": null,
"typ": null,
"max": 50,
"conditions": "Sink",
"source_page": 14,
"source": "datasheet"
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{
"name": "Current for all I/O pins",
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"kind": "absolute_maximum",
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"min": null,
"typ": null,
"max": 200,
"conditions": "Sink",
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"source": "datasheet"
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{
"name": "Operating ambient temperature range",
"symbol": "TA",
"kind": "recommended_operating",
"unit": "°C",
"min": -40,
"typ": null,
"max": 125,
"conditions": "-I temperature grade",
"source_page": 15,
"source": "datasheet"
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{
"name": "DVDD supply voltage",
"symbol": "VDVDD",
"kind": "recommended_operating",
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"min": 1.71,
"typ": 3,
"max": 3.8,
"conditions": "EM0/1",
"source_page": 15,
"source": "datasheet"
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{
"name": "AVDD supply voltage",
"symbol": "VAVDD",
"kind": "recommended_operating",
"unit": "V",
"min": 1.71,
"typ": 3,
"max": 3.8,
"conditions": "",
"source_page": 15,
"source": "datasheet"
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{
"name": "IOVDDx operating supply voltage (All IOVDD pins)",
"symbol": "VIOVDDx",
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"min": 1.71,
"typ": 3,
"max": 3.8,
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"source_page": 15,
"source": "datasheet"
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{
"name": "PAVDD operating supply voltage",
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"kind": "recommended_operating",
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"min": 1.71,
"typ": 3,
"max": 3.8,
"conditions": "",
"source_page": 15,
"source": "datasheet"
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{
"name": "RFVDD operating supply voltage",
"symbol": "VRFVDD",
"kind": "recommended_operating",
"unit": "V",
"min": 1.71,
"typ": 3,
"max": null,
"conditions": "Printed max is VPAVDD (expression, not a number)",
"source_page": 15,
"source": "datasheet"
},
{
"name": "DECOUPLE output capacitor",
"symbol": "CDECOUPLE",
"kind": "recommended_operating",
"unit": "µF",
"min": 0.75,
"typ": 1,
"max": 2.75,
"conditions": "",
"source_page": 15,
"source": "datasheet"
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{
"name": "HCLK and Core frequency",
"symbol": "fHCLK",
"kind": "recommended_operating",
"unit": "MHz",
"min": null,
"typ": null,
"max": 80,
"conditions": "MODE = WS1, RAMWSEN = 1",
"source_page": 15,
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{
"name": "HCLK and Core frequency",
"symbol": "fHCLK",
"kind": "recommended_operating",
"unit": "MHz",
"min": null,
"typ": null,
"max": 50,
"conditions": "MODE = WS1, RAMWSEN = 0",
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{
"name": "HCLK and Core frequency",
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"unit": "MHz",
"min": null,
"typ": null,
"max": 39,
"conditions": "MODE = WS0, RAMWSEN = 0",
"source_page": 15,
"source": "datasheet"
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{
"name": "PCLK frequency",
"symbol": "fPCLK",
"kind": "recommended_operating",
"unit": "MHz",
"min": null,
"typ": null,
"max": 50,
"conditions": "",
"source_page": 15,
"source": "datasheet"
},
{
"name": "EM01 Group A clock frequency",
"symbol": "fEM01GRPACLK",
"kind": "recommended_operating",
"unit": "MHz",
"min": null,
"typ": null,
"max": 80,
"conditions": "",
"source_page": 15,
"source": "datasheet"
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{
"name": "HCLK Radio frequency",
"symbol": "fHCLKRADIO",
"kind": "recommended_operating",
"unit": "MHz",
"min": 38,
"typ": 38.4,
"max": 40,
"conditions": "",
"source_page": 15,
"source": "datasheet"
},
{
"name": "Flash erase cycles before failure",
"symbol": "ECFLASH",
"kind": "electrical",
"unit": "cycles",
"min": 10000,
"typ": null,
"max": null,
"conditions": "TA ≤ 125 °C",
"source_page": 37,
"source": "datasheet"
},
{
"name": "Flash data retention",
"symbol": "RETFLASH",
"kind": "electrical",
"unit": "years",
"min": 10,
"typ": null,
"max": null,
"conditions": "TA ≤ 125 °C",
"source_page": 37,
"source": "datasheet"
},
{
"name": "Program time",
"symbol": "tPROG",
"kind": "electrical",
"unit": "uSec",
"min": 40.2,
"typ": 44,
"max": 47.9,
"conditions": "one word (32-bits)",
"source_page": 37,
"source": "datasheet"
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{
"name": "Program time, average per word",
"symbol": "tPROG",
"kind": "electrical",
"unit": "uSec",
"min": 9.97,
"typ": 10.9,
"max": 11.9,
"conditions": "average per word over 128 words",
"source_page": 37,
"source": "datasheet"
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{
"name": "Page Erase Time",
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"kind": "electrical",
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"min": 11.6,
"typ": 12.7,
"max": 13.9,
"conditions": "",
"source_page": 37,
"source": "datasheet"
},
{
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