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Silicon Labs Microcontrollers - MCU

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (EUR) Filter the results in the table by unit price based on your quantity.	Qty.	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	Qualification	Packaging
ARM Microcontrollers - MCU 128k Flash, 16k RAM, AES EFM32G280F128G-E-QFP100 Silicon Labs 1: 7,63 € Non-Stocked Lead-Time 12 Weeks NRND	Mfr. Part No. EFM32G280F128G-E-QFP100 Mouser Part No 634-32G280128GEFP100 NRND	Silicon Labs	ARM Microcontrollers - MCU 128k Flash, 16k RAM, AES	Datasheet	Non-Stocked Lead-Time 12 Weeks	7,63 € 5,91 € 5,48 € 5,01 € View 4,78 € 4,64 € 4,52 € 4,28 €	Min.: 1 Mult.: 1	SMD/SMT	LQFP-100	ARM Cortex M3	128 kB	32 bit	12 bit	32 MHz	86 I/O	16 kB	1.98 V	3.8 V	- 40 C	+ 85 C		Tray
ARM Microcontrollers - MCU 128k Flash, 16k RAM, 4x22 LCD, AES EFM32G842F128G-E-QFP64 Silicon Labs 1: 7,46 € 32In Stock NRND	Mfr. Part No. EFM32G842F128G-E-QFP64 Mouser Part No 634-32G842F128GEFP64 NRND	Silicon Labs	ARM Microcontrollers - MCU 128k Flash, 16k RAM, 4x22 LCD, AES	Datasheet	32In Stock	7,46 € 5,78 € 5,36 € 4,90 € View 4,68 € 4,55 € 4,42 € 4,20 €	Min.: 1 Mult.: 1	SMD/SMT	TQFP-64	ARM Cortex M3	128 kB	32 bit	12 bit	32 MHz	53 I/O	16 kB	1.98 V	3.8 V	- 40 C	+ 85 C		Tray
ARM Microcontrollers - MCU 128k Flash, 16k RAM, 4x40 LCD, AES EFM32G880F128G-E-QFP100 Silicon Labs 1: 8,12 € 24In Stock NRND	Mfr. Part No. EFM32G880F128G-E-QFP100 Mouser Part No 634-32G880F128EFP100 NRND	Silicon Labs	ARM Microcontrollers - MCU 128k Flash, 16k RAM, 4x40 LCD, AES	Datasheet	24In Stock	8,12 € 6,31 € 5,87 € 5,37 € View 5,09 € 4,99 € 4,88 € Quote	Min.: 1 Mult.: 1	SMD/SMT	LQFP-100	ARM Cortex M3	128 kB	32 bit	12 bit	32 MHz	86 I/O	16 kB	1.98 V	3.8 V	- 40 C	+ 85 C		Tray
ARM Microcontrollers - MCU 512k Flash, 128k RAM, USB, AES EFM32GG380F512G-E-QFP100 Silicon Labs 1: 14,62 € 35In Stock NRND	Mfr. Part No. EFM32GG380F512G-E-QFP100 Mouser Part No 634-32GG380F512-E NRND	Silicon Labs	ARM Microcontrollers - MCU 512k Flash, 128k RAM, USB, AES Learn More about Silicon Labs energymicro efm32giant	Datasheet	35In Stock	14,62 € 11,45 € 10,66 € 9,79 € View 9,69 € 9,12 € 8,92 € Quote	Min.: 1 Mult.: 1	SMD/SMT	LQFP-100	ARM Cortex M3	512 kB	32 bit	12 bit	48 MHz	81 I/O	128 kB	1.98 V	3.8 V	- 40 C	+ 85 C		Tray
ARM Microcontrollers - MCU 1024k Flash, 128k RAM, USB, AES EFM32GG390F1024G-E-BGA112 Silicon Labs 1: 17,82 € 44In Stock NRND	Mfr. Part No. EFM32GG390F1024G-E-BGA112 Mouser Part No 634-32GG390F1024-E NRND	Silicon Labs	ARM Microcontrollers - MCU 1024k Flash, 128k RAM, USB, AES Learn More about Silicon Labs energymicro efm32giant	Datasheet	44In Stock	17,82 € 14,12 € 13,20 € 12,19 € View 11,62 € 11,41 €	Min.: 1 Mult.: 1	SMD/SMT	BGA-112	ARM Cortex M3	1.02 MB	32 bit	12 bit	48 MHz	86 I/O	128 kB	1.98 V	3.8 V	- 40 C	+ 85 C		Tray
ARM Microcontrollers - MCU ARM Cortex-M4 32-bit 72 MHz 2048 kB USB LCD MCU EFM32GG11B820F2048GL152-B Silicon Labs 1: 20,40 € 13In Stock NRND	Mfr. Part No. EFM32GG11B820F2048GL152-B Mouser Part No 634-B820F2048GL152-B NRND	Silicon Labs	ARM Microcontrollers - MCU ARM Cortex-M4 32-bit 72 MHz 2048 kB USB LCD MCU Learn More about Silicon Labs efm32gg11 mcus	Datasheet	13In Stock	20,40 € 16,31 € 15,29 € 14,16 € View 13,63 € 13,30 €	Min.: 1 Mult.: 1	SMD/SMT	BGA-152	ARM Cortex M4	2.05 MB	32 bit	12 bit	72 MHz	121 I/O	512 kB	1.8 V	3.8 V	- 40 C	+ 85 C		Tray
8-bit Microcontrollers - MCU 8051 50 MHz 16 kB LFO 8-bit MCU C8051F392-A-GM Silicon Labs 1: 3,73 € 395In Stock 1 911Expected 02/11/2026 NRND	Mfr. Part No. C8051F392-A-GM Mouser Part No 634-C8051F392-A-GM NRND	Silicon Labs	8-bit Microcontrollers - MCU 8051 50 MHz 16 kB LFO 8-bit MCU Learn More about Silicon Labs siliconlabs c8051f37x	Datasheet	395In Stock 1 911Expected 02/11/2026	3,73 € 2,81 € 2,58 € 2,33 € View 2,21 € 2,19 € 2,06 € 2,01 €	Min.: 1 Mult.: 1	SMD/SMT	QFN-20	8051	16 kB	8 bit	10 bit	50 MHz	17 I/O	1 kB	1.8 V	3.6 V	- 40 C	+ 105 C		Tube
ARM Microcontrollers - MCU ARM Cortex-M0+ 48 MHz 128 kB flash 32 kB RAM MCU EFM32TG11B120F128IM64-B Silicon Labs 1: 5,26 € 153In Stock NRND	Mfr. Part No. EFM32TG11B120F128IM64-B Mouser Part No 634-EFM32TG128IM64-B NRND	Silicon Labs	ARM Microcontrollers - MCU ARM Cortex-M0+ 48 MHz 128 kB flash 32 kB RAM MCU Learn More about Silicon Labs energymicroefm32tg	Datasheet	153In Stock	5,26 € 4,03 € 3,73 € 3,39 € View 3,23 € 3,13 € 3,10 € 3,06 €	Min.: 1 Mult.: 1	SMD/SMT	QFN-64	ARM Cortex M0+	128 kB	32 bit	12 bit	48 MHz	56 I/O	32 kB	1.8 V	3.8 V	- 40 C	+ 125 C		Tray
8-bit Microcontrollers - MCU 8051 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU EFM8BB21F16G-C-QFN20 Silicon Labs 1: 1,47 € 50In Stock 2 520Expected 08/01/2027	Mfr. Part No. EFM8BB21F16G-C-QFN20 Mouser Part No 634-8BB21F16GCQFN20	Silicon Labs	8-bit Microcontrollers - MCU 8051 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU Learn More about Silicon Labs siliconlabs efm8 busy bee	Datasheet	50In Stock 2 520Expected 08/01/2027	1,47 € 1,25 € 1,09 € 0,912 €	Min.: 1 Mult.: 1	SMD/SMT	QFN-20	CIP-51 8051	16 kB	8 bit	12 bit	50 MHz	16 I/O	2.3 kB	2.2 V	3.6 V	- 40 C	+ 85 C		Tube
8-bit Microcontrollers - MCU 8051 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU EFM8BB22F16G-C-QFN28 Silicon Labs 1: 1,81 € 1 187In Stock	Mfr. Part No. EFM8BB22F16G-C-QFN28 Mouser Part No 634-8BB22F16GCQFN28	Silicon Labs	8-bit Microcontrollers - MCU 8051 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU Learn More about Silicon Labs siliconlabs efm8 busy bee	Datasheet	1 187In Stock	1,81 € 1,52 € 1,30 € 1,23 € View 1,20 € 1,07 € 0,851 € 0,832 €	Min.: 1 Mult.: 1	SMD/SMT	QFN-28	CIP-51 8051	16 kB	8 bit	12 bit	50 MHz	22 I/O	2.3 kB	2.2 V	3.6 V	- 40 C	+ 85 C		Tube
8-bit Microcontrollers - MCU 8051 25 MHz 16 kB flash 2 kB RAM 8-bit Universal Bee MCU EFM8UB10F16G-C-QFN20 Silicon Labs 1: 2,22 € 164In Stock	Mfr. Part No. EFM8UB10F16G-C-QFN20 Mouser Part No 634-8UB10F16GCQFN20	Silicon Labs	8-bit Microcontrollers - MCU 8051 25 MHz 16 kB flash 2 kB RAM 8-bit Universal Bee MCU	Datasheet	164In Stock	2,22 € 1,87 € 1,63 € 1,53 € 1,37 €	Min.: 1 Mult.: 1	SMD/SMT	QFN-20	CIP-51 8051	16 kB	8 bit	12 bit	50 MHz	13 I/O	2.25 kB	2.2 V	3.6 V	- 40 C	+ 85 C		Tube
8-bit Microcontrollers - MCU 8051 25 MHz 16 kB flash 2 kB RAM 8-bit Universal Bee MCU EFM8UB10F16G-C-QFN28R Silicon Labs 1: 2,33 € 105In Stock 7 500Expected 08/01/2027	Mfr. Part No. EFM8UB10F16G-C-QFN28R Mouser Part No 634-8UB10F16GCQFN28R	Silicon Labs	8-bit Microcontrollers - MCU 8051 25 MHz 16 kB flash 2 kB RAM 8-bit Universal Bee MCU	Datasheet	105In Stock 7 500Expected 08/01/2027	Cut Tape 2,33 € 1,96 € 1,72 € 1,63 € View Reel 1,37 € 1,41 € 1,37 € 1,37 €	Min.: 1 Mult.: 1 : 2 500	SMD/SMT	QFN-28	CIP-51 8051	16 kB	8 bit	12 bit	50 MHz	22 I/O	2.25 kB	2.2 V	3.6 V	- 40 C	+ 85 C		Reel, Cut Tape
8-bit Microcontrollers - MCU 8051 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU EFM8BB21F16A-C-QFN20R Silicon Labs 1: 2,86 € 298In Stock	Mfr. Part No. EFM8BB21F16A-C-QFN20R Mouser Part No 634-BB21F16ACQFN20R	Silicon Labs	8-bit Microcontrollers - MCU 8051 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU Learn More about Silicon Labs siliconlabs efm8 busy bee	Datasheet	298In Stock	Cut Tape 2,86 € 2,13 € 1,95 € 1,75 € Reel 1,49 € View 1,65 € 1,62 € 1,53 € 1,46 €	Min.: 1 Mult.: 1 : 2 500	SMD/SMT	QFN-20	CIP-51 8051	16 kB	8 bit	12 bit	50 MHz	16 I/O	2.25 kB	2.2 V	3.6 V	- 40 C	+ 125 C	AEC-Q100	Reel, Cut Tape
8-bit Microcontrollers - MCU 8051 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU EFM8BB21F16I-C-QFN20R Silicon Labs 1: 1,59 € 331In Stock	Mfr. Part No. EFM8BB21F16I-C-QFN20R Mouser Part No 634-BB21F16ICQFN20R	Silicon Labs	8-bit Microcontrollers - MCU 8051 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU Learn More about Silicon Labs siliconlabs efm8 busy bee	Datasheet	331In Stock	Cut Tape 1,59 € 1,35 € 1,19 € 1,12 € View Reel 0,777 € 0,894 € 0,856 € 0,777 € 0,777 € MouseReel Available	Min.: 1 Mult.: 1 : 2 500	SMD/SMT	QFN-20	CIP-51 8051	16 kB	8 bit	12 bit	50 MHz	16 I/O	2.25 kB	2.2 V	3.6 V	- 40 C	+ 125 C		Reel, Cut Tape, MouseReel
8-bit Microcontrollers - MCU 8051 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU EFM8BB31F16G-D-QFN32 Silicon Labs 1: 1,51 € 1 432In Stock	Mfr. Part No. EFM8BB31F16G-D-QFN32 Mouser Part No 634-EF8BB31F16GDQN32	Silicon Labs	8-bit Microcontrollers - MCU 8051 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU Learn More about Silicon Labs siliconlabs efm8 busy bee	Datasheet	1 432In Stock	1,51 € 1,28 € 1,13 € 1,07 € View 0,946 € 0,903 € 0,869 € 0,832 € 0,823 €	Min.: 1 Mult.: 1	SMD/SMT	QFN-32	CIP-51 8051	16 kB	8 bit	10 bit, 12 bit	50 MHz	29 I/O	2.3 kB	2.2 V	3.6 V	- 40 C	+ 85 C		Tray
8-bit Microcontrollers - MCU 8051 50 MHz 32 kB flash 2.25 kB RAM 8-bit Busy Bee MCU EFM8BB31F32I-D-4QFN24R Silicon Labs 1: 2,07 € 617In Stock	Mfr. Part No. EFM8BB31F32I-D-4QFN24R Mouser Part No 634-EF8BB31F32ID424R	Silicon Labs	8-bit Microcontrollers - MCU 8051 50 MHz 32 kB flash 2.25 kB RAM 8-bit Busy Bee MCU Learn More about Silicon Labs siliconlabs efm8 busy bee	Datasheet	617In Stock	Cut Tape 2,07 € 1,53 € 1,39 € 1,25 € Reel 1,07 € View 1,18 € 1,14 € 1,10 € 1,04 €	Min.: 1 Mult.: 1 : 2 500	SMD/SMT	QFN-24	CIP-51 8051	32 kB	8 bit	10 bit, 12 bit	50 MHz	20 I/O	2.3 kB	2.2 V	3.6 V	- 40 C	+ 125 C		Reel, Cut Tape
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU EFM8BB51F16G-C-TSSOP20 Silicon Labs 1: 0,86 € 1 452In Stock	Mfr. Part No. EFM8BB51F16G-C-TSSOP20 Mouser Part No 634-EFM8516GCTSSOP20	Silicon Labs	8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU Learn More about Silicon Labs silabs efm8bb51 efm8bb52 busy bee mcus	Datasheet	1 452In Stock	0,86 € 0,68 € 0,67 € 0,617 € View 0,477 € 0,465 €	Min.: 1 Mult.: 1	SMD/SMT	TSSOP-20		16 kB				16 I/O	1.28 kB	1.8 V	5.5 V	- 40 C	+ 85 C		Cut Tape
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU EFM8BB51F16G-C-QFN20 Silicon Labs 1: 0,929 € 151In Stock	Mfr. Part No. EFM8BB51F16G-C-QFN20 Mouser Part No 634-EFM851F16GCQFN20	Silicon Labs	8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU Learn More about Silicon Labs silabs efm8bb51 efm8bb52 busy bee mcus	Datasheet	151In Stock	0,929 € 0,671 € 0,604 € 0,531 € View 0,496 € 0,476 € 0,46 € 0,439 € 0,429 €	Min.: 1 Mult.: 1	SMD/SMT	QFN-20		16 kB				16 I/O	1.28 kB	1.8 V	5.5 V	- 40 C	+ 85 C		Cut Tape
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU EFM8BB51F16G-C-QFN20R Silicon Labs 1: 0,80 € 1 016In Stock 7 500On Order	Mfr. Part No. EFM8BB51F16G-C-QFN20R Mouser Part No 634-EFM851F16GQFN20R	Silicon Labs	8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU Learn More about Silicon Labs silabs efm8bb51 efm8bb52 busy bee mcus	Datasheet	1 016In Stock 7 500On Order	Cut Tape 0,80 € 0,575 € 0,519 € 0,456 € View Reel 0,408 € 0,427 € 0,409 € 0,408 €	Min.: 1 Mult.: 1 : 2 500	SMD/SMT	QFN-20		16 kB				16 I/O	1.28 kB	1.8 V	5.5 V	- 40 C	+ 85 C		Reel, Cut Tape
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU EFM8BB51F16I-C-QFN20 Silicon Labs 1: 0,98 € 194In Stock	Mfr. Part No. EFM8BB51F16I-C-QFN20 Mouser Part No 634-EFM851F16ICQFN20	Silicon Labs	8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU Learn More about Silicon Labs silabs efm8bb51 efm8bb52 busy bee mcus	Datasheet	194In Stock	0,98 € 0,709 € 0,638 € 0,562 € View 0,525 € 0,502 € 0,487 € 0,465 € 0,453 €	Min.: 1 Mult.: 1	SMD/SMT	QFN-20		16 kB				16 I/O	1.28 kB	1.8 V	5.5 V	- 40 C	+ 85 C		Cut Tape
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU EFM8BB51F16I-C-TSSOP20 Silicon Labs 1: 1,02 € 146In Stock	Mfr. Part No. EFM8BB51F16I-C-TSSOP20 Mouser Part No 634-EFM851F16TSSOP20	Silicon Labs	8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU Learn More about Silicon Labs silabs efm8bb51 efm8bb52 busy bee mcus	Datasheet	146In Stock	1,02 € 0,747 € 0,676 € 0,597 € View 0,56 € 0,537 € 0,513 € 0,499 € 0,487 €	Min.: 1 Mult.: 1	SMD/SMT	TSSOP-20		16 kB				16 I/O	1.28 kB	1.8 V	5.5 V	- 40 C	+ 85 C		Cut Tape
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 8 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU EFM8BB51F8G-C-TSSOP20 Silicon Labs 1: 0,955 € 297In Stock	Mfr. Part No. EFM8BB51F8G-C-TSSOP20 Mouser Part No 634-EFM851F8GCTSOP20	Silicon Labs	8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 8 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU Learn More about Silicon Labs silabs efm8bb51 efm8bb52 busy bee mcus	Datasheet	297In Stock	0,955 € 0,69 € 0,621 € 0,546 € View 0,511 € 0,488 € 0,473 € 0,452 € 0,441 €	Min.: 1 Mult.: 1	SMD/SMT	TSSOP-20		16 kB				16 I/O	1.28 kB	1.8 V	5.5 V	- 40 C	+ 85 C		Cut Tape
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU EFM8BB52F16G-C-QFN20 Silicon Labs 1: 0,791 € 234In Stock	Mfr. Part No. EFM8BB52F16G-C-QFN20 Mouser Part No 634-EFM852F16GCQFN20	Silicon Labs	8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU Learn More about Silicon Labs silabs efm8bb51 efm8bb52 busy bee mcus	Datasheet	234In Stock	0,791 € 0,63 € 0,449 € 0,429 € View 0,412 € 0,395 € 0,384 €	Min.: 1 Mult.: 1	SMD/SMT	QFN-20		16 kB				16 I/O	1.28 kB	1.8 V	5.5 V	- 40 C	+ 85 C		Cut Tape
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 29 GPIO BB5 8-bit MCU EFM8BB52F16G-C-QFN32 Silicon Labs 1: 0,834 € 722In Stock 400On Order	Mfr. Part No. EFM8BB52F16G-C-QFN32 Mouser Part No 634-EFM852F16GCQFN32	Silicon Labs	8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 29 GPIO BB5 8-bit MCU Learn More about Silicon Labs silabs efm8bb51 efm8bb52 busy bee mcus	Datasheet	722In Stock 400On Order	0,834 € 0,64 € 0,624 € 0,557 € View 0,513 € 0,418 €	Min.: 1 Mult.: 1	SMD/SMT	QFN-32		16 kB		12 bit		29I/O	1.28 kB	1.8 V	5.5 V	- 40 C	+ 85 C		Cut Tape
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU EFM8BB52F16G-C-QFN20R Silicon Labs 1: 0,826 € 874In Stock	Mfr. Part No. EFM8BB52F16G-C-QFN20R Mouser Part No 634-EFM852F16GQFN20R	Silicon Labs	8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU Learn More about Silicon Labs silabs efm8bb51 efm8bb52 busy bee mcus	Datasheet	874In Stock	Cut Tape 0,826 € 0,594 € 0,535 € 0,47 € Reel 0,39 € View 0,439 € 0,421 € 0,408 € 0,38 €	Min.: 1 Mult.: 1 : 2 500	SMD/SMT	QFN-20		16 kB				16 I/O	1.28 kB	1.8 V	5.5 V	- 40 C	+ 85 C		Reel, Cut Tape