8-bit Microcontrollers - MCU

.hide-partial { max-height: none; } .show-more { display: none; }

EFM8™ Sleepy Bee 8-bit MCUs

Silicon Labs EFM8™ Sleepy Bee Family of MCUs are energy-friendly 8-bit microcontrollers with comprehensive features in small packages. They have low power consumption by combining innovative low energy techniques and short wake-up times from energy-saving modes. The Silicon Labs EFM8 are well suited for any battery-operated applications.

.catnav-wrapper { height: auto; overflow: visible; } .catalog-nav-tabs ul { white-space: normal; }

Results: 14

Applied Filters:

Core

Program Memory Size

Data RAM Size

Package/Case

Maximum Clock Frequency

ADC Resolution

Number of I/Os

Supply Voltage - Min

Supply Voltage - Max

Mounting Style

Data Bus Width

Minimum Operating Temperature

Maximum Operating Temperature

Qualification

Packaging

Reset All

Search within results

In Stock

Normally Stocked

Active

New Products

RoHS Compliant

.search-refine-wrapper { display: inline-block; min-width: 100%; } .scroll-body { overflow-x: visible; } .search-table-wrapper { overflow: visible; } .hide-partial { max-height: none; } .show-more { display: none; }

Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (EUR) Filter the results in the table by unit price based on your quantity.	Qty.	Core	Program Memory Size	Data RAM Size	Package/Case	Maximum Clock Frequency	ADC Resolution	Number of I/Os	Supply Voltage - Min	Supply Voltage - Max	Mounting Style	Data Bus Width	Minimum Operating Temperature	Maximum Operating Temperature	Series	Qualification	Packaging
8-bit Microcontrollers - MCU 8051 25 MHz 64 kB flash 4 kB RAM 8-bit Sleepy Bee MCU EFM8SB20F64G-B-QFN24 Silicon Labs 1: 2,44 € 2.654In Stock	Mfr. Part No. EFM8SB20F64G-B-QFN24 Mouser Part No 634-EFM8SBF64GBQFN24	Silicon Labs	8-bit Microcontrollers - MCU 8051 25 MHz 64 kB flash 4 kB RAM 8-bit Sleepy Bee MCU Learn More about Silicon Labs silabs efm8 sleepy bee	Datasheet	2.654In Stock	2,44 € 1,85 € 1,69 € 1,51 € View 1,43 € 1,40 € 1,33 € 1,29 € 1,26 €	Min.: 1 Mult.: 1	CIP-51 8051	64 kB	4.25 kB	QFN-24	25 MHz	10 bit	16 I/O	1.8 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 85 C	EFM8SB		Tube
8-bit Microcontrollers - MCU 8051 25 MHz 8 kB flash 0.5 kB RAM 8-bit Sleepy Bee MCU EFM8SB10F8A-A-QFN24 Silicon Labs 1: 2,48 € 1.519In Stock	Mfr. Part No. EFM8SB10F8A-A-QFN24 Mouser Part No 634-FM8SB10F8AAQFN24	Silicon Labs	8-bit Microcontrollers - MCU 8051 25 MHz 8 kB flash 0.5 kB RAM 8-bit Sleepy Bee MCU Learn More about Silicon Labs silabs efm8 sleepy bee	Datasheet	1.519In Stock	2,48 € 2,03 € 1,91 € 1,78 € View 1,69 € 1,65 € 1,53 € 1,40 €	Min.: 1 Mult.: 1	CIP-51 8051	8 kB	512 B		25 MHz	12 bit	17 I/O	1.8 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 85 C	EFM8SB	AEC-Q100	Tube
8-bit Microcontrollers - MCU 8051 25 MHz 32 kB flash 4 kB RAM 8-bit Sleepy Bee MCU EFM8SB20F32G-B-QFN24R Silicon Labs 1: 3,12 € 865In Stock	Mfr. Part No. EFM8SB20F32G-B-QFN24R Mouser Part No 634-EFM8SB32GBQFN24R	Silicon Labs	8-bit Microcontrollers - MCU 8051 25 MHz 32 kB flash 4 kB RAM 8-bit Sleepy Bee MCU Learn More about Silicon Labs silabs efm8 sleepy bee	Datasheet	865In Stock	Cut Tape 3,12 € 2,28 € 2,03 € 1,78 € Reel 1,10 € View 1,53 € 1,15 € 1,08 €	Min.: 1 Mult.: 1 : 1.500	CIP-51 8051	32 kB	4.25 kB	QFN-24	25 MHz	10 bit	16 I/O	1.8 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 85 C	EFM8SB		Reel, Cut Tape
8-bit Microcontrollers - MCU 8051 25 MHz 8 kB flash 0.5 kB RAM 8-bit Sleepy Bee MCU EFM8SB10F8A-A-QFN20R Silicon Labs 1: 2,80 € 1.221In Stock End of Life	Mfr. Part No. EFM8SB10F8A-A-QFN20R Mouser Part No 634-M8SB10F8AAQFN20R End of Life	Silicon Labs	8-bit Microcontrollers - MCU 8051 25 MHz 8 kB flash 0.5 kB RAM 8-bit Sleepy Bee MCU Learn More about Silicon Labs silabs efm8 sleepy bee	Datasheet	1.221In Stock	Cut Tape 2,80 € 2,09 € 1,91 € 1,71 € View Reel 1,34 € 1,62 € 1,58 € 1,47 € 1,34 €	Min.: 1 Mult.: 1 : 1.500	CIP-51 8051	8 kB	512 B	QFN-20	25 MHz	12 bit	16 I/O	1.8 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 85 C	EFM8SB	AEC-Q100	Reel, Cut Tape
8-bit Microcontrollers - MCU 8051 25 MHz 64 kB flash 4 kB RAM 8-bit Sleepy Bee MCU EFM8SB20F64G-B-QFN24R Silicon Labs 1: 2,48 € 1.500In Stock	Mfr. Part No. EFM8SB20F64G-B-QFN24R Mouser Part No 634-EFM8SB64GBQFN24R	Silicon Labs	8-bit Microcontrollers - MCU 8051 25 MHz 64 kB flash 4 kB RAM 8-bit Sleepy Bee MCU Learn More about Silicon Labs silabs efm8 sleepy bee	Datasheet	1.500In Stock	Cut Tape 2,48 € 1,85 € 1,69 € 1,51 € View Reel 1,19 € 1,43 € 1,40 € 1,32 € 1,19 € MouseReel Available	Min.: 1 Mult.: 1 : 1.500	CIP-51 8051	64 kB	4.25 kB		25 MHz	10 bit	16 I/O	1.8 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 85 C	EFM8SB		Reel, Cut Tape, MouseReel
8-bit Microcontrollers - MCU 8051 25 MHz 64 kB flash 4 kB RAM 8-bit Sleepy Bee MCU EFM8SB20F64G-B-QFN32 Silicon Labs 1: 3,87 € 1.111In Stock End of Life	Mfr. Part No. EFM8SB20F64G-B-QFN32 Mouser Part No 634-EFM8SBF64GBQFN32 End of Life	Silicon Labs	8-bit Microcontrollers - MCU 8051 25 MHz 64 kB flash 4 kB RAM 8-bit Sleepy Bee MCU Learn More about Silicon Labs silabs efm8 sleepy bee	Datasheet	1.111In Stock	3,87 € 2,56 € 2,17 € 1,99 € View 1,89 € 1,69 € 1,67 € 1,52 € 1,51 €	Min.: 1 Mult.: 1	CIP-51 8051	64 kB	4.25 kB	QFN-32	25 MHz	10 bit	24 I/O	1.8 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 85 C	EFM8SB		Tube
8-bit Microcontrollers - MCU 8051 25 MHz 32 kB flash 4 kB RAM 8-bit Sleepy Bee MCU EFM8SB20F32G-B-QFN32R Silicon Labs 1: 2,20 € 81In Stock End of Life	Mfr. Part No. EFM8SB20F32G-B-QFN32R Mouser Part No 634-EFM8SB32GBQFN32R End of Life	Silicon Labs	8-bit Microcontrollers - MCU 8051 25 MHz 32 kB flash 4 kB RAM 8-bit Sleepy Bee MCU Learn More about Silicon Labs silabs efm8 sleepy bee	Datasheet	81In Stock	Cut Tape 2,20 € 1,98 € 1,54 € 1,45 € Reel 1,20 € View 1,40 € 1,22 € 1,19 €	Min.: 1 Mult.: 1 : 1.500	CIP-51 8051	32 kB	4.25 kB		25 MHz	10 bit	24 I/O	1.8 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 85 C	EFM8SB		Reel, Cut Tape
8-bit Microcontrollers - MCU 8051 25 MHz 32 kB flash 4 kB RAM 8-bit Sleepy Bee MCU EFM8SB20F32G-B-QFN32 Silicon Labs 1: 2,33 € Non-Stocked Lead-Time 20 Weeks End of Life	Mfr. Part No. EFM8SB20F32G-B-QFN32 Mouser Part No 634-EFM8SBF32GBQFN32 End of Life	Silicon Labs	8-bit Microcontrollers - MCU 8051 25 MHz 32 kB flash 4 kB RAM 8-bit Sleepy Bee MCU Learn More about Silicon Labs silabs efm8 sleepy bee	Datasheet	Non-Stocked Lead-Time 20 Weeks	2,33 € 1,76 € 1,52 € 1,40 € View 1,32 € 1,27 €	Min.: 1 Mult.: 1	CIP-51 8051	32 kB	4.25 kB	QFN-32	25 MHz	10 bit	24 I/O	1.8 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 85 C	EFM8SB		Tube
8-bit Microcontrollers - MCU 8051 25 MHz 16 kB flash 4 kB RAM 8-bit Sleepy Bee MCU EFM8SB20F16G-B-QFN24 Silicon Labs 1: 1,83 € 1.911Expected 11/13/2026	Mfr. Part No. EFM8SB20F16G-B-QFN24 Mouser Part No 634-EFM8SBF16GBQFN24	Silicon Labs	8-bit Microcontrollers - MCU 8051 25 MHz 16 kB flash 4 kB RAM 8-bit Sleepy Bee MCU Learn More about Silicon Labs silabs efm8 sleepy bee	Datasheet	1.911Expected 11/13/2026	1,83 € 1,40 € 1,25 € 1,15 € View 1,09 € 1,07 € 1,04 € 1,01 €	Min.: 1 Mult.: 1	CIP-51 8051	16 kB	4.25 kB	QFN-24	25 MHz	10 bit	16 I/O	1.8 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 85 C	EFM8SB		Tube
8-bit Microcontrollers - MCU 8051 25 MHz 16 kB flash 4 kB RAM 8-bit Sleepy Bee MCU EFM8SB20F16G-B-QFN24R Silicon Labs 1.500: 0,989 € Non-Stocked Lead-Time 12 Weeks	Mfr. Part No. EFM8SB20F16G-B-QFN24R Mouser Part No 634-EFM8SB16GBQFN24R	Silicon Labs	8-bit Microcontrollers - MCU 8051 25 MHz 16 kB flash 4 kB RAM 8-bit Sleepy Bee MCU Learn More about Silicon Labs silabs efm8 sleepy bee	Datasheet	Non-Stocked Lead-Time 12 Weeks	Reel 0,989 € 0,972 €	Min.: 1.500 Mult.: 1.500 : 1.500	CIP-51 8051	16 kB	4.25 kB		25 MHz	10 bit	16 I/O	1.8 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 85 C	EFM8SB		Reel
8-bit Microcontrollers - MCU 8051 25 MHz 32 kB flash 4 kB RAM 8-bit Sleepy Bee MCU EFM8SB20F32G-B-QFN24 Silicon Labs 1: 1,96 € Non-Stocked Lead-Time 12 Weeks	Mfr. Part No. EFM8SB20F32G-B-QFN24 Mouser Part No 634-EFM8SBF32GBQFN24	Silicon Labs	8-bit Microcontrollers - MCU 8051 25 MHz 32 kB flash 4 kB RAM 8-bit Sleepy Bee MCU Learn More about Silicon Labs silabs efm8 sleepy bee	Datasheet	Non-Stocked Lead-Time 12 Weeks	1,96 € 1,57 € 1,42 € 1,27 € View 1,25 € 1,17 € 1,14 € 1,10 € 1,08 €	Min.: 1 Mult.: 1	CIP-51 8051	32 kB	4.25 kB	QFN-24	25 MHz	10 bit	16 I/O	1.8 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 85 C	EFM8SB		Tube
8-bit Microcontrollers - MCU 8051 25 MHz 8 kB flash 0.5 kB RAM 8-bit Sleepy Bee MCU EFM8SB10F8A-A-QFN24R Silicon Labs 1.500: 1,61 € Non-Stocked Lead-Time 12 Weeks	Mfr. Part No. EFM8SB10F8A-A-QFN24R Mouser Part No 634-M8SB10F8AAQFN24R	Silicon Labs	8-bit Microcontrollers - MCU 8051 25 MHz 8 kB flash 0.5 kB RAM 8-bit Sleepy Bee MCU Learn More about Silicon Labs silabs efm8 sleepy bee	Datasheet	Non-Stocked Lead-Time 12 Weeks	Reel 1,61 € 1,59 €	Min.: 1.500 Mult.: 1.500 : 1.500	CIP-51 8051	8 kB	512 B	QFN-24	25 MHz	12 bit	17 I/O	1.8 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 85 C	EFM8SB	AEC-Q100	Reel
8-bit Microcontrollers - MCU 8051 25 MHz 64 kB flash 4 kB RAM 8-bit Sleepy Bee MCU EFM8SB20F64G-B-QFN32R Silicon Labs 1: 2,73 € Non-Stocked Lead-Time 20 Weeks End of Life	Mfr. Part No. EFM8SB20F64G-B-QFN32R Mouser Part No 634-EFM8SB64GBQFN32R End of Life	Silicon Labs	8-bit Microcontrollers - MCU 8051 25 MHz 64 kB flash 4 kB RAM 8-bit Sleepy Bee MCU Learn More about Silicon Labs silabs efm8 sleepy bee	Datasheet	Non-Stocked Lead-Time 20 Weeks	Cut Tape 2,73 € 2,04 € 1,87 € 1,67 € 1,66 € Reel 1,65 €	Min.: 1 Mult.: 1 : 1.500														EFM8SB		Reel, Cut Tape
8-bit Microcontrollers - MCU 8051 25 MHz 8 kB flash 0.5 kB RAM 8-bit Sleepy Bee MCU EFM8SB10F8A-A-QFN20 Silicon Labs 1: 2,85 € Non-Stocked Lead-Time 20 Weeks End of Life	Mfr. Part No. EFM8SB10F8A-A-QFN20 Mouser Part No 634-FM8SB10F8AAQFN20 End of Life	Silicon Labs	8-bit Microcontrollers - MCU 8051 25 MHz 8 kB flash 0.5 kB RAM 8-bit Sleepy Bee MCU Learn More about Silicon Labs silabs efm8 sleepy bee	Datasheet	Non-Stocked Lead-Time 20 Weeks	2,85 € 2,24 € 2,14 € 2,03 € View 1,98 € 1,96 € 1,84 € 1,81 € 1,80 €	Min.: 1 Mult.: 1														EFM8SB	AEC-Q100	Tube

EFM8™ Sleepy Bee 8-bit MCUs

Applied Filters:

Customer Service Office

Company

Resources

Support