EFR32MG12 in Silicon Labs EFR32 / EFM32 Family
The EFR32MG12 Mighty Gecko family by Silicon Labs is a high-performance series of multiprotocol wireless System-on-Chips designed for the 2.4 GHz and Sub-GHz frequency bands. Built on the ARM Cortex-M4 architecture with a dedicated floating-point unit, these SoCs support concurrent operation of Zigbee, Thread, Bluetooth 5.x, and proprietary protocols. They are specifically engineered for IoT infrastructure, providing the processing power and memory headroom required for complex mesh networking stacks and advanced edge computing tasks.
Variants in This Sub-Family
Comparing specs that differ across variants.
| Part Number | GPIO | Package | Tx Power | Stock |
|---|---|---|---|---|
| EFR32MG12P332F1024GM48-C (Silicon Labs) | 31 | VFQFN-48 | 10dBm | 880 |
| EFR32MG12P433F1024GM48-CR (Silicon Labs) | 31 | VFQFN-48 | 20dBm | 7,411 |
| EFR32MG12P433F1024GL125 (Silicon Labs) | 65 | VFBGA-125 | 20dBm | 4,780 |
Variants within the EFR32MG12 sub-family differ primarily in their radio capabilities and memory density. Options include 2.4 GHz only or dual-band (2.4 GHz and Sub-GHz) support. Output power varies from +10 dBm to +19 dBm to meet different range requirements. Package options range from QFN48 to BGA125, with the latter offering significantly more GPIO pins and integrated decoupling capacitors for simplified PCB design.
