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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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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (PEN) Filter the results in the table by unit price based on your quantity.	Qty.	Series	Mounting Style	Package / Case	Core	Program Memory Size	Data Bus Width	ADC Resolution	Maximum Clock Frequency	Number of I/Os	Data RAM Size	Supply Voltage - Min	Supply Voltage - Max	Minimum Operating Temperature	Maximum Operating Temperature	Packaging
ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB EFM32LG230F256G-F-QFN64 Silicon Labs 1: S/41.10 2,584In Stock	Mfr. Part # EFM32LG230F256G-F-QFN64 Mouser Part # 634-32LG230F256GFQFN	Silicon Labs	ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB Learn More about Silicon Labs energymicro efm32leopard	Datasheet	2,584In Stock	S/41.10 S/32.11 S/29.86 S/27.36 View S/26.00 S/25.50 S/24.91 Quote	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
ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB EFM32LG330F256G-F-QFN64 Silicon Labs 1: S/43.32 2,657In Stock	Mfr. Part # EFM32LG330F256G-F-QFN64 Mouser Part # 634-32LG330F256GFQFN	Silicon Labs	ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB Learn More about Silicon Labs energymicro efm32leopard	Datasheet	2,657In Stock	S/43.32 S/34.45 S/31.57 S/29.19 View S/27.91 S/27.17 S/25.73 Quote	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
ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB EFM32LG842F256G-F-QFP64R Silicon Labs 1: S/43.21 5,787In Stock	Mfr. Part # EFM32LG842F256G-F-QFP64R Mouser Part # 634-32LG842256GFQFPR	Silicon Labs	ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB Learn More about Silicon Labs energymicro efm32leopard	Datasheet	5,787In Stock	Cut Tape S/43.21 S/33.75 S/31.37 S/28.77 View Reel S/26.12 S/27.33 S/26.78 S/26.12 Quote	Min.: 1 Mult.: 1 : 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
ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB EFM32LG380F256G-F-QFP100 Silicon Labs 1: S/49.16 380In Stock	Mfr. Part # EFM32LG380F256G-F-QFP100 Mouser Part # 634-32LG380F256GFQFP	Silicon Labs	ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB Learn More about Silicon Labs energymicro efm32leopard	Datasheet	380In Stock	S/49.16 S/38.34 S/35.42 S/33.83 View S/32.39 S/31.30 S/30.71 Quote	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
ARM Microcontrollers - MCU Leopard Gecko MCU IC 128KB EFM32LG230F128G-F-QFN64R Silicon Labs 1: S/36.32 2,650In Stock	Mfr. Part # EFM32LG230F128G-F-QFN64R Mouser Part # 634-32LG230F128GFQFR	Silicon Labs	ARM Microcontrollers - MCU Leopard Gecko MCU IC 128KB Learn More about Silicon Labs energymicro efm32leopard	Datasheet	2,650In Stock	Cut Tape S/36.32 S/28.14 S/26.12 S/23.86 View Reel S/20.40 S/22.77 S/22.15 S/21.56 S/20.40	Min.: 1 Mult.: 1 : 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
ARM Microcontrollers - MCU Leopard Gecko MCU IC 128KB EFM32LG230F128G-F-QFN64 Silicon Labs 1: S/36.32 1,814In Stock	Mfr. Part # EFM32LG230F128G-F-QFN64 Mouser Part # 634-32LG230F128GFQFN	Silicon Labs	ARM Microcontrollers - MCU Leopard Gecko MCU IC 128KB Learn More about Silicon Labs energymicro efm32leopard	Datasheet	1,814In Stock	S/36.32 S/28.14 S/26.12 S/23.86 View S/22.77 S/22.15 S/21.02 Quote	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
ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB EFM32LG230F256G-F-QFN64R Silicon Labs 1: S/41.10 1,937In Stock	Mfr. Part # EFM32LG230F256G-F-QFN64R Mouser Part # 634-32LG230F256GFQFR	Silicon Labs	ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB Learn More about Silicon Labs energymicro efm32leopard	Datasheet	1,937In Stock	Cut Tape S/41.10 S/32.11 S/29.86 S/27.36 View Reel S/24.76 S/26.00 S/25.50 S/24.91 S/24.76	Min.: 1 Mult.: 1 : 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
ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB EFM32LG330F256G-F-QFN64R Silicon Labs 1: S/43.48 190In Stock	Mfr. Part # EFM32LG330F256G-F-QFN64R Mouser Part # 634-32LG330F256GFQFR	Silicon Labs	ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB Learn More about Silicon Labs energymicro efm32leopard	Datasheet	190In Stock	Cut Tape S/43.48 S/33.94 S/31.57 S/28.96 View Reel S/25.03 S/27.48 S/26.94 S/26.04 S/25.03 MouseReel Available	Min.: 1 Mult.: 1 : 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
ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB EFM32LG232F256G-F-QFP64 Silicon Labs 1: S/41.81 1,600In Stock	Mfr. Part # EFM32LG232F256G-F-QFP64 Mouser Part # 634-32LG232F256GFQFP	Silicon Labs	ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB Learn More about Silicon Labs energymicro efm32leopard	Datasheet	1,600In Stock	S/41.81 S/32.11 S/30.52 S/28.18 View S/27.40 S/26.27 S/25.38 Quote	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
ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB EFM32LG332F256G-F-QFP64 Silicon Labs 1: S/44.18 1,059In Stock	Mfr. Part # EFM32LG332F256G-F-QFP64 Mouser Part # 634-32LG332F256GFQFP	Silicon Labs	ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB Learn More about Silicon Labs energymicro efm32leopard	Datasheet	1,059In Stock	S/44.18 S/35.42 S/32.27 S/29.78 View S/28.96 S/27.75 S/26.66 Quote	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
ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB EFM32LG290F256G-F-BGA112 Silicon Labs 1: S/51.38 106In Stock	Mfr. Part # EFM32LG290F256G-F-BGA112 Mouser Part # 634-32LG290F256GFBGA	Silicon Labs	ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB Learn More about Silicon Labs energymicro efm32leopard	Datasheet	106In Stock	S/51.38 S/39.04 S/35.19 S/32.97 View S/30.67 S/29.82 S/29.54 Quote	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
ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB EFM32LG280F256G-F-QFP100R Silicon Labs 1,000: S/29.62 Non-Stocked Lead-Time 12 Weeks	Mfr. Part # EFM32LG280F256G-F-QFP100R Mouser Part # 634-32L280F256GFQFPR	Silicon Labs	ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB Learn More about Silicon Labs energymicro efm32leopard	Datasheet	Non-Stocked Lead-Time 12 Weeks	Reel S/29.62 View Quote	Min.: 1,000 Mult.: 1,000 : 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
ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB EFM32LG295F256G-F-BGA120R Silicon Labs 1,000: S/30.91 Non-Stocked Lead-Time 12 Weeks	Mfr. Part # EFM32LG295F256G-F-BGA120R Mouser Part # 634-32L295F256GFBGAR	Silicon Labs	ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB Learn More about Silicon Labs energymicro efm32leopard	Datasheet	Non-Stocked Lead-Time 12 Weeks	Reel S/30.91 Quote Quote	Min.: 1,000 Mult.: 1,000 : 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
ARM Microcontrollers - MCU Leopard Gecko MCU IC 64KB EFM32LG230F64G-F-QFN64 Silicon Labs 1,300: S/19.31 Non-Stocked Lead-Time 12 Weeks	Mfr. Part # EFM32LG230F64G-F-QFN64 Mouser Part # 634-32LG230F64GFQFN	Silicon Labs	ARM Microcontrollers - MCU Leopard Gecko MCU IC 64KB Learn More about Silicon Labs energymicro efm32leopard	Datasheet	Non-Stocked Lead-Time 12 Weeks	S/19.31 View Quote	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
ARM Microcontrollers - MCU Leopard Gecko MCU IC 64KB EFM32LG230F64G-F-QFN64R Silicon Labs 3,000: S/19.15 Non-Stocked Lead-Time 12 Weeks	Mfr. Part # EFM32LG230F64G-F-QFN64R Mouser Part # 634-32LG230F64GFQFR	Silicon Labs	ARM Microcontrollers - MCU Leopard Gecko MCU IC 64KB Learn More about Silicon Labs energymicro efm32leopard	Datasheet	Non-Stocked Lead-Time 12 Weeks	Reel S/19.15	Min.: 3,000 Mult.: 3,000 : 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
ARM Microcontrollers - MCU Leopard Gecko MCU IC 128KB EFM32LG232F128G-F-QFP64 Silicon Labs 800: S/23.04 Non-Stocked Lead-Time 12 Weeks	Mfr. Part # EFM32LG232F128G-F-QFP64 Mouser Part # 634-32LG232F128GFQFP	Silicon Labs	ARM Microcontrollers - MCU Leopard Gecko MCU IC 128KB Learn More about Silicon Labs energymicro efm32leopard	Datasheet	Non-Stocked Lead-Time 12 Weeks	S/23.04 Quote Quote	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
ARM Microcontrollers - MCU Leopard Gecko MCU IC 128KB EFM32LG232F128G-F-QFP64R Silicon Labs 1,000: S/22.73 Non-Stocked Lead-Time 12 Weeks	Mfr. Part # EFM32LG232F128G-F-QFP64R Mouser Part # 634-32LG232F128GFQFR	Silicon Labs	ARM Microcontrollers - MCU Leopard Gecko MCU IC 128KB Learn More about Silicon Labs energymicro efm32leopard	Datasheet	Non-Stocked Lead-Time 12 Weeks	Reel S/22.73 S/22.42	Min.: 1,000 Mult.: 1,000 : 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
ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB EFM32LG232F256G-F-QFP64R Silicon Labs 1,000: S/26.16 Non-Stocked Lead-Time 12 Weeks	Mfr. Part # EFM32LG232F256G-F-QFP64R Mouser Part # 634-32LG232F256GFQFR	Silicon Labs	ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB Learn More about Silicon Labs energymicro efm32leopard	Datasheet	Non-Stocked Lead-Time 12 Weeks	Reel S/26.16 Quote Quote	Min.: 1,000 Mult.: 1,000 : 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
ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB EFM32LG280F256G-F-QFP100 Silicon Labs 1: S/46.36 Non-Stocked Lead-Time 12 Weeks	Mfr. Part # EFM32LG280F256G-F-QFP100 Mouser Part # 634-32LG280F256GFQFP	Silicon Labs	ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB Learn More about Silicon Labs energymicro efm32leopard	Datasheet	Non-Stocked Lead-Time 12 Weeks	S/46.36 S/36.12 S/33.55 S/31.80 View S/30.52 S/29.15 S/28.92 Quote	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
ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB EFM32LG295F256G-F-BGA120 Silicon Labs 1,300: S/29.39 Non-Stocked Lead-Time 12 Weeks	Mfr. Part # EFM32LG295F256G-F-BGA120 Mouser Part # 634-32LG295F256GFBGA	Silicon Labs	ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB Learn More about Silicon Labs energymicro efm32leopard	Datasheet	Non-Stocked Lead-Time 12 Weeks	S/29.39 View Quote	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
ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB EFM32LG332F256G-F-QFP64R Silicon Labs 1,000: S/27.48 Non-Stocked Lead-Time 12 Weeks	Mfr. Part # EFM32LG332F256G-F-QFP64R Mouser Part # 634-32LG332256GFQFPR	Silicon Labs	ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB Learn More about Silicon Labs energymicro efm32leopard	Datasheet	Non-Stocked Lead-Time 12 Weeks	Reel S/27.48 Quote Quote	Min.: 1,000 Mult.: 1,000 : 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
ARM Microcontrollers - MCU Leopard Gecko MCU IC 128KB EFM32LG840F128G-F-QFN64 Silicon Labs 1,300: S/23.98 Non-Stocked Lead-Time 12 Weeks	Mfr. Part # EFM32LG840F128G-F-QFN64 Mouser Part # 634-32LG840F128GFQFN	Silicon Labs	ARM Microcontrollers - MCU Leopard Gecko MCU IC 128KB Learn More about Silicon Labs energymicro efm32leopard	Datasheet	Non-Stocked Lead-Time 12 Weeks	S/23.98 Quote Quote	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
ARM Microcontrollers - MCU Leopard Gecko MCU IC 128KB EFM32LG840F128G-F-QFN64R Silicon Labs 3,000: S/23.47 Non-Stocked Lead-Time 12 Weeks	Mfr. Part # EFM32LG840F128G-F-QFN64R Mouser Part # 634-32LG840F128GFQFR	Silicon Labs	ARM Microcontrollers - MCU Leopard Gecko MCU IC 128KB Learn More about Silicon Labs energymicro efm32leopard	Datasheet	Non-Stocked Lead-Time 12 Weeks	Reel S/23.47	Min.: 3,000 Mult.: 3,000 : 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
ARM Microcontrollers - MCU Leopard Gecko MCU IC 64KB EFM32LG840F64G-F-QFN64 Silicon Labs 1,300: S/20.01 Non-Stocked Lead-Time 12 Weeks	Mfr. Part # EFM32LG840F64G-F-QFN64 Mouser Part # 634-32LG840F64GFQFN	Silicon Labs	ARM Microcontrollers - MCU Leopard Gecko MCU IC 64KB Learn More about Silicon Labs energymicro efm32leopard	Datasheet	Non-Stocked Lead-Time 12 Weeks	S/20.01 Quote Quote	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
ARM Microcontrollers - MCU Leopard Gecko MCU IC 64KB EFM32LG840F64G-F-QFN64R Silicon Labs 3,000: S/20.36 Non-Stocked Lead-Time 12 Weeks	Mfr. Part # EFM32LG840F64G-F-QFN64R Mouser Part # 634-32LG840F64GFQFR	Silicon Labs	ARM Microcontrollers - MCU Leopard Gecko MCU IC 64KB Learn More about Silicon Labs energymicro efm32leopard	Datasheet	Non-Stocked Lead-Time 12 Weeks	Reel S/20.36	Min.: 3,000 Mult.: 3,000 : 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

EFM32 Leopard Gecko 32-Bit Microcontrollers

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