CSP Package EFM32™ Wonder Gecko 32-bit MCUs

Silicon Labs CSP Package EFM32™ Wonder Gecko 32-bit MCUs are based on the ARM® Cortex®-M4 core, which provides a complete DSP instruction set and includes a hardware FPU for faster computation performance. Wonder Gecko MCUs feature up to 256kB of flash memory, 32kB of RAM, and CPU speeds up to 48MHz. These new CSP packages offer energy-friendly MCU in 60% smaller packaging enabling a breakthrough in industrial design for small portable devices.

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Description Datasheet Availability Pricing (CAD) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Series
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Program Memory Size
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Silicon Labs ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB
Datasheet
5,787In Stock
Min.: 1
Mult.: 1
Reel: 1,000

EFM32LG SMD/SMT TQFP-64 ARM Cortex M3 256 kB 32 bit 12 bit 48 MHz 53 I/O 32 kB 1.98 V 3.8 V - 40 C + 85 C Reel, Cut Tape

Silicon Labs ARM Microcontrollers - MCU Leopard Gecko MCU IC 128KB
Datasheet
2,650In Stock
Min.: 1
Mult.: 1
Reel: 3,000

EFM32LG SMD/SMT QFN-64 ARM Cortex M3 128 kB 32 bit 12 bit 48 MHz 56 I/O 32 kB 1.98 V 3.8 V - 40 C + 85 C Reel, Cut Tape
Silicon Labs ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB
Datasheet
440In Stock
Min.: 1
Mult.: 1

EFM32LG SMD/SMT LQFP-100 ARM Cortex M3 256 kB 32 bit 12 bit 48 MHz 83 I/O 32 kB 1.98 V 3.8 V - 40 C + 85 C Tray

Silicon Labs ARM Microcontrollers - MCU Leopard Gecko MCU IC 128KB
Datasheet
1,864In Stock
Min.: 1
Mult.: 1

EFM32LG SMD/SMT QFN-64 ARM Cortex M3 128 kB 32 bit 12 bit 48 MHz 56 I/O 32 kB 1.98 V 3.8 V - 40 C + 85 C Tray
Silicon Labs ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB
Datasheet
1,180In Stock
Min.: 1
Mult.: 1

EFM32LG SMD/SMT LQFP-100 ARM Cortex M3 256 kB 32 bit 12 bit 48 MHz 85 I/O 32 kB 1.98 V 3.8 V - 40 C + 85 C Tray

Silicon Labs ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB
Datasheet
2,014In Stock
Min.: 1
Mult.: 1
Reel: 3,000

EFM32LG SMD/SMT QFN-64 ARM Cortex M3 256 kB 32 bit 12 bit 48 MHz 56 I/O 32 kB 1.98 V 3.8 V - 40 C + 85 C Reel, Cut Tape
Silicon Labs ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB
Datasheet
440In Stock
Min.: 1
Mult.: 1

EFM32LG SMD/SMT LQFP-100 ARM Cortex M3 256 kB 32 bit 12 bit 48 MHz 85 I/O 32 kB 1.98 V 3.8 V - 40 C + 85 C Tray
Silicon Labs ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB
Datasheet
211In Stock
Min.: 1
Mult.: 1

EFM32LG SMD/SMT BGA-112 ARM Cortex M3 256 kB 32 bit 12 bit 48 MHz 90 I/O 32 kB 1.98 V 3.8 V - 40 C + 85 C Tray

Silicon Labs ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB
Datasheet
2,600In Stock
Min.: 1
Mult.: 1

EFM32LG SMD/SMT QFN-64 ARM Cortex M3 256 kB 32 bit 12 bit 48 MHz 56 I/O 32 kB 1.98 V 3.8 V - 40 C + 85 C Tray
Silicon Labs ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB
Datasheet
411In Stock
Min.: 1
Mult.: 1

EFM32LG SMD/SMT TQFP-64 ARM Cortex M3 256 kB 32 bit 12 bit 48 MHz 53 I/O 32 kB 1.98 V 3.8 V - 40 C + 85 C Tray

Silicon Labs ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB
Datasheet
468In Stock
Min.: 1
Mult.: 1

EFM32LG SMD/SMT QFN-64 ARM Cortex M3 256 kB 32 bit 12 bit 48 MHz 53 I/O 32 kB 1.98 V 3.8 V - 40 C + 85 C Tray

Silicon Labs ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB
Datasheet
190In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

EFM32LG SMD/SMT QFN-64 ARM Cortex M3 256 kB 32 bit 12 bit 48 MHz 53 I/O 32 kB 1.98 V 3.8 V - 40 C + 85 C Reel, Cut Tape, MouseReel
Silicon Labs ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB
Datasheet
47In Stock
Min.: 1
Mult.: 1

EFM32LG SMD/SMT CSP-81 ARM Cortex M3 256 kB 32 bit 12 bit 48 MHz 65 I/O 32 kB 1.98 V 3.8 V - 40 C + 85 C Tray
Silicon Labs ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB
Datasheet
1,449Expected 2026-02-26
Min.: 1
Mult.: 1

EFM32LG SMD/SMT TQFP-64 ARM Cortex M3 256 kB 32 bit 12 bit 48 MHz 50 I/O 32 kB 1.98 V 3.8 V - 40 C + 85 C Tray
Silicon Labs ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 1,000
Mult.: 1,000
Reel: 1,000

EFM32LG SMD/SMT LQFP-100 ARM Cortex M3 256 kB 32 bit 12 bit 48 MHz 86 I/O 32 kB 1.98 V 3.8 V - 40 C + 85 C Reel
Silicon Labs ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 1,000
Mult.: 1,000
Reel: 1,000

EFM32LG SMD/SMT BGA-112 ARM Cortex M3 256 kB 32 bit 12 bit 48 MHz 90 I/O 32 kB 1.98 V 3.8 V - 40 C + 85 C Reel
Silicon Labs ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 1,000
Mult.: 1,000
Reel: 1,000

EFM32LG SMD/SMT BGA-120 ARM Cortex M3 256 kB 32 bit 12 bit 48 MHz 93 I/O 32 kB 1.98 V 3.8 V - 40 C + 85 C Reel

Silicon Labs ARM Microcontrollers - MCU Leopard Gecko MCU IC 64KB
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 1,300
Mult.: 1,300

EFM32LG SMD/SMT QFN-64 ARM Cortex M3 64 kB 32 bit 12 bit 48 MHz 56 I/O 32 kB 1.98 V 3.8 V - 40 C + 85 C Tray

Silicon Labs ARM Microcontrollers - MCU Leopard Gecko MCU IC 64KB
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 3,000
Mult.: 3,000
Reel: 3,000

EFM32LG SMD/SMT QFN-64 ARM Cortex M3 64 kB 32 bit 12 bit 48 MHz 56 I/O 32 kB 1.98 V 3.8 V - 40 C + 85 C Reel
Silicon Labs ARM Microcontrollers - MCU Leopard Gecko MCU IC 128KB
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 800
Mult.: 800

EFM32LG SMD/SMT TQFP-64 ARM Cortex M3 128 kB 32 bit 12 bit 48 MHz 53 I/O 32 kB 1.98 V 3.8 V - 40 C + 85 C Tray
Silicon Labs ARM Microcontrollers - MCU Leopard Gecko MCU IC 128KB
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 1,000
Mult.: 1,000
Reel: 1,000

EFM32LG SMD/SMT TQFP-64 ARM Cortex M3 128 kB 32 bit 12 bit 48 MHz 53 I/O 32 kB 1.98 V 3.8 V - 40 C + 85 C Reel
Silicon Labs ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 1,000
Mult.: 1,000
Reel: 1,000

EFM32LG SMD/SMT TQFP-64 ARM Cortex M3 256 kB 32 bit 12 bit 48 MHz 53 I/O 32 kB 1.98 V 3.8 V - 40 C + 85 C Reel
Silicon Labs ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 1,300
Mult.: 1,300

EFM32LG SMD/SMT BGA-120 ARM Cortex M3 256 kB 32 bit 12 bit 48 MHz 93 I/O 32 kB 1.98 V 3.8 V - 40 C + 85 C Tray
Silicon Labs ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 1,000
Mult.: 1,000
Reel: 1,000

EFM32LG SMD/SMT TQFP-64 ARM Cortex M3 256 kB 32 bit 12 bit 48 MHz 50 I/O 32 kB 1.98 V 3.8 V - 40 C + 85 C Reel

Silicon Labs ARM Microcontrollers - MCU Leopard Gecko MCU IC 128KB
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 1,300
Mult.: 1,300

EFM32LG SMD/SMT QFN-64 ARM Cortex M3 128 kB 32 bit 12 bit 48 MHz 56 I/O 32 kB 1.98 V 3.8 V - 40 C + 85 C Tray