EFM32 Leopard Gecko 32-Bit Microcontrollers

Silicon Labs EFM32 Leopard Gecko 32-Bit Microcontrollers are part of the world's most energy-friendly microcontrollers and will provide Flash memory configurations up to 256KB with the added option of embedded USB connectivity, direct-drive TFT, EBI and CPU speeds up to 48MHz. All Leopard MCUs include the same autonomous, low-energy peripherals found in the Gecko family, like AES encryption, Pulse Counter, Low Energy UARTs in addition to the Low Energy Sensor interface LESENSE and on-chip Operational Amplifiers. These devices target energy-sensitive applications with high memory requirements and connectivity requirements.

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Qty. RoHS ECAD Model Series
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Program Memory Size
Data Bus Width
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Supply Voltage - Max
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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 2/26/2026
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