# EFR32MG24B010F1536IM48-B

**SKYWORKS/SILICON LABS** · RF Transceiver ICs · QFN-48(6x6)

EFR32MG24B010F1536IM48-B from SKYWORKS/SILICON LABS, in a QFN-48(6x6). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | PC00 | bidirectional | General purpose I/O pin; alternate functions are listed in the Alternate Function Table (6.5). |
| 2 | PC01 | bidirectional | General purpose I/O pin; alternate functions are listed in the Alternate Function Table (6.5). |
| 3 | PC02 | bidirectional | General purpose I/O pin; alternate functions are listed in the Alternate Function Table (6.5). |
| 4 | PC03 | bidirectional | General purpose I/O pin; alternate functions are listed in the Alternate Function Table (6.5). |
| 5 | PC04 | bidirectional | General purpose I/O pin; alternate functions are listed in the Alternate Function Table (6.5). |
| 6 | PC05 | bidirectional | General purpose I/O pin; alternate functions are listed in the Alternate Function Table (6.5). |
| 7 | PC06 | bidirectional | General purpose I/O pin; alternate functions are listed in the Alternate Function Table (6.5). |
| 8 | PC07 | bidirectional | General purpose I/O pin; alternate functions are listed in the Alternate Function Table (6.5). |
| 9 | PC08 | bidirectional | General purpose I/O pin; alternate functions are listed in the Alternate Function Table (6.5). |
| 10 | PC09 | bidirectional | General purpose I/O pin; alternate functions are listed in the Alternate Function Table (6.5). |
| 11 | HFXTAL_I | input | High Frequency Crystal Input. |
| 12 | HFXTAL_O | output | High Frequency Crystal Output. |
| 13 | RESETn | input | Reset pin, internally pulled up to DVDD; RESETn low time of at least 100 ns ensures pin reset. |
| 14 | RFVDD | power_in | Radio power supply. |
| 15 | RFVSS | power_in | Radio Ground. |
| 16 | RF2G4_IO | bidirectional | 2.4 GHz RF input/output, the single-ended antenna interface. |
| 17 | PAVDD | power_in | Power Amplifier (PA) power supply. |
| 18 | PB05 | bidirectional | General purpose I/O pin; alternate functions are listed in the Alternate Function Table (6.5). |
| 19 | PB04 | bidirectional | General purpose I/O pin; alternate functions are listed in the Alternate Function Table (6.5). |
| 20 | PB03 | bidirectional | General purpose I/O pin; alternate functions are listed in the Alternate Function Table (6.5). |
| 21 | PB02 | bidirectional | General purpose I/O pin; alternate functions are listed in the Alternate Function Table (6.5). |
| 22 | PB01 | bidirectional | General purpose I/O pin; alternate functions are listed in the Alternate Function Table (6.5). |
| 23 | PB00 | bidirectional | General purpose I/O pin; alternate functions are listed in the Alternate Function Table (6.5). |
| 24 | VREFN | input | Dedicated ADC VREF Negative Input. |
| 25 | VREFP | input | Dedicated ADC VREF Positive Input. |
| 26 | PA00 | bidirectional | General purpose I/O pin; alternate functions are listed in the Alternate Function Table (6.5). |
| 27 | PA01 | bidirectional | General purpose I/O pin; alternate functions are listed in the Alternate Function Table (6.5). |
| 28 | PA02 | bidirectional | General purpose I/O pin; alternate functions are listed in the Alternate Function Table (6.5). |
| 29 | PA03 | bidirectional | General purpose I/O pin; alternate functions are listed in the Alternate Function Table (6.5). |
| 30 | PA04 | bidirectional | General purpose I/O pin; alternate functions are listed in the Alternate Function Table (6.5). |
| 31 | PA05 | bidirectional | General purpose I/O pin; alternate functions are listed in the Alternate Function Table (6.5). |
| 32 | PA06 | bidirectional | General purpose I/O pin; alternate functions are listed in the Alternate Function Table (6.5). |
| 33 | PA07 | bidirectional | General purpose I/O pin; alternate functions are listed in the Alternate Function Table (6.5). |
| 34 | PA08 | bidirectional | General purpose I/O pin; alternate functions are listed in the Alternate Function Table (6.5). |
| 35 | PA09 | bidirectional | General purpose I/O pin; alternate functions are listed in the Alternate Function Table (6.5). |
| 36 | DECOUPLE | passive | Decouple output for on-chip voltage regulator; an external decoupling capacitor is required at this pin. |
| 37 | VREGSW | passive | DCDC regulator switching node. |
| 38 | VREGVDD | power_in | DCDC regulator input supply. |
| 39 | VREGVSS | power_in | DCDC ground. |
| 40 | DVDD | power_in | Digital power supply. |
| 41 | AVDD | power_in | Analog power supply. |
| 42 | IOVDD | power_in | I/O power supply; GPIO input thresholds are proportional to the IOVDD pin. |
| 43 | PD05 | bidirectional | General purpose I/O pin; alternate functions are listed in the Alternate Function Table (6.5). |
| 44 | PD04 | bidirectional | General purpose I/O pin; alternate functions are listed in the Alternate Function Table (6.5). |
| 45 | PD03 | bidirectional | General purpose I/O pin; alternate functions are listed in the Alternate Function Table (6.5). |
| 46 | PD02 | bidirectional | General purpose I/O pin; alternate functions are listed in the Alternate Function Table (6.5). |
| 47 | PD01 | bidirectional | General purpose I/O pin; alternate functions are listed in the Alternate Function Table (6.5). |
| 48 | PD00 | bidirectional | General purpose I/O pin; alternate functions are listed in the Alternate Function Table (6.5). |
| 49 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | SKYWORKS/SILICON LABS |
| Package | QFN-48(6x6) |
| Category | Radio Frequency Chip/Antenna |
| Pins | 49 |

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Storage temperature range | TSTG | -50 |  | 150 | °C |  | 23 |
| Voltage on any supply pin | VDDMAX | -0.3 |  | 3.8 | V |  | 23 |
| Junction temperature | TJMAX |  |  | 125 | °C | -I grade | 23 |
| Voltage ramp rate on any supply pin | VDDRAMPMAX |  |  | 1 | V / µs |  | 23 |
| Voltage on HFXO pins | VHFXOPIN | -0.3 |  | 1.2 | V |  | 23 |
| DC voltage on RESETn pin | VRESETn | -0.3 |  | 3.8 | V |  | 23 |
| DC voltage on RF pin RF2G4_IO | VMAX2G4 | -0.3 |  | 1.2 | V |  | 23 |
| Total current into VDD power lines | IVDDMAX |  |  | 200 | mA | Source | 23 |
| Total current into VSS ground lines | IVSSMAX |  |  | 200 | mA | Sink | 23 |
| Current per I/O pin (sink) | IIOMAX |  |  | 50 | mA | Sink | 23 |
| Current per I/O pin (source) | IIOMAX |  |  | 50 | mA | Source | 23 |
| Current for all I/O pins (sink) | IIOALLMAX |  |  | 200 | mA | Sink | 23 |
| Current for all I/O pins (source) | IIOALLMAX |  |  | 200 | mA | Source | 23 |
| Operating ambient temperature range | TA | -40 |  | 125 | °C | -I temperature grade | 24 |
| DVDD supply voltage | VDVDD | 1.71 | 3 | 3.8 | V | EM0/1 | 24 |
| AVDD supply voltage | VAVDD | 1.71 | 3 | 3.8 | V | AVDDBODEN=0 | 24 |
| IOVDDx operating supply voltage | VIOVDDx | 1.71 | 3 | 3.8 | V | IOVDDxBODEN=0 | 24 |
| RFVDD operating supply voltage | VRFVDD | 1.71 | 3 |  | V | max is VPAVDD | 24 |
| VREGVDD operating supply voltage | VVREGVDD | 2.2 | 3 | 3.8 | V | DC-DC in regulation | 24 |
| VREGVDD operating supply voltage | VVREGVDD | 1.8 | 3 | 3.8 | V | DC-DC in bypass 60 mA load | 24 |
| VREGVDD operating supply voltage | VVREGVDD | 1.71 | 3 | 3.8 | V | DC-DC not in use. DVDD externally shorted to VREGVDD | 24 |
| PAVDD operating supply voltage | VPAVDD | 1.71 | 3 | 3.8 | V |  | 24 |
| DECOUPLE output capacitor | CDECOUPLE | 1 |  | 2.75 | µF | 1.0 µF ± 10% X8L capacitor used for performance characterization. | 24 |
| HCLK and SYSCLK frequency | fHCLK |  |  | 78 | MHz | VSCALE2, MODE = WS1 | 24 |
| PCLK frequency | fPCLK |  |  | 40 | MHz | VSCALE2 or VSCALE1 | 24 |
| External Clock Input | fCLKIN |  |  | 40 | MHz | VSCALE2 or VSCALE1, IOVDD ≥ 2.7 V | 24 |
| Input voltage range at VREGVDD pin | VVREGVDD | 2.2 |  | 3.8 | V | DCDC in regulation, ILOAD = ILOAD MAX, EM0/EM1 mode | 26 |
| Regulation DC accuracy | ACCDC | -2.5 |  | 4 | % | VVREGVDD ≥ 2.2 V, Steady state in EM0/EM1 mode or EM2/EM3 mode | 26 |
| Regulation total accuracy | ACCTOT | -5 |  | 7 | % | All error sources (including DC errors, overshoot, undershoot) | 26 |
| Nominal output capacitor | CDCDC |  | 4.7 | 10 | µF | 4.7 µF ± 10% X7R capacitor used for performance characterization | 26 |
| Resistance in bypass mode | RBYP |  | 0.45 | 0.69 | Ω | Bypass switch from VREGVDD to DVDD, VVREGVDD = 1.8 V | 27 |
| Powertrain PFET switch resistance | RBYP |  | 0.6 | 0.9 | Ω | Powertrain PFET switch from VREGVDD to VREGSW, VVREGVDD = 1.8 V | 27 |
| Supply monitor threshold accuracy | VCMP_ACC | -5 |  | 5 | % | Supply falling edge trip point | 27 |
| Thermal resistance junction to ambient, 48QFN | ΘJA |  | 27.7 |  | °C/W | JEDEC 2s2p, Still Air | 28 |
| Thermal resistance junction to board, 48QFN | ΘJB |  | 14.6 |  | °C/W | JEDEC 2s2p | 28 |
| Thermal resistance junction to case, 48QFN | ΘJC |  | 23 |  | °C/W | No Board, temperature controlled heat sink on top of package | 28 |
| Flash supply voltage during write or erase | VFLASH | 1.71 |  | 3.8 | V |  | 44 |
| Flash data retention | RETFLASH | 10 |  |  | years | TA ≤ 125 °C | 44 |
| Flash erase cycles before failure | ECFLASH | 10000 |  |  | cycles | TA ≤ 125 °C | 44 |
| Program Time | tPROG | 41.9 | 43.4 | 45 | µs | TA = 25 °C, one word (32-bits) | 44 |
| Page Erase Time | tPERASE | 11.6 | 12.9 | 14 | ms | TA = 25 °C | 44 |
| Mass Erase Time | tMERASE | 144.3 | 150.5 | 156.8 | ms | TA = 25 °C, 1536kB | 44 |
| Program Current | IWRITE |  |  | 2.8 | mA |  | 44 |
| Page Erase Current | IPERASE |  |  | 1.9 | mA | Page Erase | 44 |
| Mass Erase Current | IMERASE |  |  | 2 | mA | Mass Erase | 44 |
| RF tuning frequency range (TX) | FRANGE | 2400 |  | 2483.5 | MHz |  | 46 |
| Crystal Frequency | FHFXO | 38 | 39 | 40 | MHz | see note | 60 |
| Supported crystal maximum ESR | ESRHFXO |  |  | 60 | Ω | Crystal Frequency = 39.0 MHz | 60 |
| HFRCO frequency accuracy | FHFRCO_ACC | -3 |  | 3 | % | For all production calibrated frequencies | 62 |
| FSRCO frequency | FFSRCO | 17.2 | 20 | 21.2 | MHz |  | 63 |
| LFRCO frequency accuracy | FLFRCO_ACC | -3 |  | 3 | % | Normal mode | 64 |
| LFRCO frequency accuracy, precision mode | FLFRCO_ACC | -500 |  | 500 | ppm | Precision mode, across operating temperature range | 64 |
| ULFRCO oscillation frequency | FULFRCO | 0.944 | 1 | 1.095 | kHz |  | 64 |
| Input low voltage | VIL |  |  | 0.3 | V | Any GPIO pin, max is 0.3 * IOVDD | 65 |
| Input high voltage | VIH | 0.7 |  |  | V | Any GPIO pin, min is 0.7 * IOVDD | 65 |
| Pull up/down resistance | RPULL | 35 | 44 | 55 | kΩ | Any GPIO pin | 65 |
| GPIO leakage current | ILEAK_IO |  |  | 200 | nA | MODEx = DISABLED, IOVDD = 3.8 V TA = 125 °C, All Other Pins | 65 |

## Materials and finish

As the datasheet states them (page.json `metadata.appearance`; the 3D model's colours follow it).

| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| housing | PC |  | 4. Recommended card reflow profile is per the JEDEC/IPC J-STD-020 specification for Small Body Components. | 122 |

## CAD (KiCad official)

- Symbol: `EFR32MG24B010F1536IM48-B`
- Footprint: `Package_DFN_QFN:QFN-48-1EP_6x6mm_P0.4mm_EP4.2x4.2mm`
- 3D model: QFN-48(6x6), generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 0.9 mm nominal QFN height). Neither the vendor nor KiCad ships a 3D model for this package, so the dimensions are nominal, not the manufacturer's CAD (STEP)
- 3D model files: `efr32mg24b010f1536im48-b-etched.step` / `efr32mg24b010f1536im48-b-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `efr32mg24b010f1536im48-b.step` / `efr32mg24b010f1536im48-b.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [SKYWORKS/SILICON LABS datasheet](docs/efr32mg24b010f1536im48-b-datasheet.pdf) (132 pp, sha256 `c2555e008ba4c47a`, retrieved 2026-10-31, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-sonnet-5-5` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/efr32mg24b010f1536im48-b-datasheet.pdf)