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CIP-51 8051 Core 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	Data Bus Width	Maximum Clock Frequency	Program Memory Size	Data RAM Size	ADC Resolution	Number of I/Os	Supply Voltage - Min	Supply Voltage - Max	Maximum Operating Temperature	Qualification	Packaging
8-bit Microcontrollers - MCU 8051 75 MHz 64 kB flash 4.25 kB RAM 8-bit Laser Bee MCU EFM8LB12F64E-C-QSOP24 Silicon Labs 1: 3,05 € 1 855In Stock End of Life	Mfr. Part No. EFM8LB12F64E-C-QSOP24 Mouser Part No 634-LB12F64ECQSOP24 End of Life	Silicon Labs	8-bit Microcontrollers - MCU 8051 75 MHz 64 kB flash 4.25 kB RAM 8-bit Laser Bee MCU Learn More about Silicon Labs silabs efm8 laser bee	Datasheet	1 855In Stock	3,05 € 2,28 € 2,08 € 1,87 € View 1,77 € 1,73 € 1,64 € 1,58 € 1,56 €	Min.: 1 Mult.: 1	SMD/SMT	QSOP-24	CIP-51 8051	8 bit	72 MHz	64 kB	4.25 kB	10 bit/12 bit/14 bit	21 I/O	2.2 V	3.6 V	+ 105 C		Tube
8-bit Microcontrollers - MCU 8051 75 MHz 16 kB flash 1.25 kB RAM 8-bit Laser Bee MCU EFM8LB10F16E-C-QFN32 Silicon Labs 1: 2,32 € 70In Stock	Mfr. Part No. EFM8LB10F16E-C-QFN32 Mouser Part No 634-LB10F16ECQFN32	Silicon Labs	8-bit Microcontrollers - MCU 8051 75 MHz 16 kB flash 1.25 kB RAM 8-bit Laser Bee MCU Learn More about Silicon Labs silabs efm8 laser bee	Datasheet	70In Stock	2,32 € 2,10 € 1,87 € 1,69 € View 1,50 € 1,32 € 1,08 € 0,939 €	Min.: 1 Mult.: 1	SMD/SMT	QFN-32	CIP-51 8051	8 bit	72 MHz	16 kB	1.25 kB	10 bit/12 bit/14 bit	29 I/O	2.2 V	3.6 V	+ 105 C		Tray
8-bit Microcontrollers - MCU 8051 50 MHz 32 kB flash 2.25 kB RAM 8-bit Busy Bee MCU EFM8BB31F32G-D-QFP32R Silicon Labs 1: 2,26 € 477In Stock	Mfr. Part No. EFM8BB31F32G-D-QFP32R Mouser Part No 634-EF8BB31F32GDP32R	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	477In Stock	Cut Tape 2,26 € 1,68 € 1,53 € 1,37 € Reel 1,25 € View 1,29 € 1,20 € 1,19 € 1,14 €	Min.: 1 Mult.: 1 : 500	SMD/SMT	QFP-32	CIP-51 8051	8 bit	50 MHz	32 kB	2.3 kB	10 bit, 12 bit	28 I/O	2.2 V	3.6 V	+ 85 C		Reel, Cut Tape
8-bit Microcontrollers - MCU 8051 50 MHz 32 kB flash 2.25 kB RAM 8-bit Busy Bee MCU EFM8BB31F32G-D-QFN32 Silicon Labs 1: 1,98 € 457In Stock	Mfr. Part No. EFM8BB31F32G-D-QFN32 Mouser Part No 634-EF8BB31F32GDQN32	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	457In Stock	1,98 € 1,46 € 1,33 € 1,19 € View 1,13 € 1,08 € 1,05 € 1,02 € 0,989 €	Min.: 1 Mult.: 1	SMD/SMT	QFN-32	CIP-51 8051	8 bit	50 MHz	32 kB	2.3 kB	10 bit, 12 bit	29 I/O	2.2 V	3.6 V	+ 85 C		Tray
8-bit Microcontrollers - MCU EFM8LB12F64ES1-C-QFN24 Silicon Labs 1: 2,89 € 1 274In Stock	Mfr. Part No. EFM8LB12F64ES1-C-QFN24 Mouser Part No 634-LB12F64ES1CQFN24	Silicon Labs	8-bit Microcontrollers - MCU Learn More about Silicon Labs silabs efm8 laser bee	Datasheet	1 274In Stock	2,89 € 2,30 € 2,05 € 1,88 € View 1,78 € 1,73 € 1,65 € 1,61 € 1,57 €	Min.: 1 Mult.: 1	SMD/SMT	QFN-24	CIP-51 8051	8 bit	72 MHz	64 kB	4.25 kB	10 bit/12 bit/14 bit	20 I/O	2.2 V	3.6 V	+ 105 C		Tube
8-bit Microcontrollers - MCU 8051 75 MHz 16 kB flash 1.25 kB RAM 8-bit Laser Bee MCU EFM8LB11F16E-C-QFN24 Silicon Labs 1: 2,08 € 2 259In Stock	Mfr. Part No. EFM8LB11F16E-C-QFN24 Mouser Part No 634-LB11F16ECQFN24	Silicon Labs	8-bit Microcontrollers - MCU 8051 75 MHz 16 kB flash 1.25 kB RAM 8-bit Laser Bee MCU Learn More about Silicon Labs silabs efm8 laser bee	Datasheet	2 259In Stock	2,08 € 1,54 € 1,40 € 1,26 € View 1,19 € 1,15 € 1,11 € 1,08 € 1,04 €	Min.: 1 Mult.: 1	SMD/SMT	QFN-24	CIP-51 8051	8 bit	72 MHz	16 kB	1.25 kB	10 bit/12 bit/14 bit	20 I/O	2.2 V	3.6 V	+ 105 C		Tube
8-bit Microcontrollers - MCU EFM8LB12F64ES1-C-QFN24R Silicon Labs 1: 3,03 € 5 732In Stock	Mfr. Part No. EFM8LB12F64ES1-C-QFN24R Mouser Part No 634-LB12F64ES1CFN24R	Silicon Labs	8-bit Microcontrollers - MCU Learn More about Silicon Labs silabs efm8 laser bee	Datasheet	5 732In Stock	Cut Tape 3,03 € 2,29 € 2,09 € 1,87 € Reel 1,59 € View 1,77 € 1,73 € 1,64 € 1,57 €	Min.: 1 Mult.: 1 : 2 500	SMD/SMT	QFN-24	CIP-51 8051	8 bit	72 MHz	64 kB	4.25 kB	10 bit/12 bit/14 bit	20 I/O	2.2 V	3.6 V	+ 105 C		Reel, Cut Tape
8-bit Microcontrollers - MCU 8051 48 MHz 32 kB flash 2 kB RAM 8-bit Universal Bee MCU EFM8UB20F32G-B-QFN32 Silicon Labs 1: 2,86 € 587In Stock NRND	Mfr. Part No. EFM8UB20F32G-B-QFN32 Mouser Part No 634-EFM8UBF32GBQFN32 NRND	Silicon Labs	8-bit Microcontrollers - MCU 8051 48 MHz 32 kB flash 2 kB RAM 8-bit Universal Bee MCU	Datasheet	587In Stock	2,86 € 2,21 € 1,99 € 1,81 € View 1,71 € 1,68 € 1,59 € 1,54 € 1,51 €	Min.: 1 Mult.: 1	SMD/SMT	QFN-32	CIP-51 8051	8 bit	48 MHz	32 kB	2.25 kB	10 bit	25 I/O	3.3 V	3.3 V	+ 85 C		Tube
8-bit Microcontrollers - MCU 8051 75 MHz 32 kB flash 2.25 kB RAM 8-bit Laser Bee MCU EFM8LB11F32E-C-QFN24 Silicon Labs 1: 2,40 € 723In Stock	Mfr. Part No. EFM8LB11F32E-C-QFN24 Mouser Part No 634-LB11F32ECQFN24	Silicon Labs	8-bit Microcontrollers - MCU 8051 75 MHz 32 kB flash 2.25 kB RAM 8-bit Laser Bee MCU Learn More about Silicon Labs silabs efm8 laser bee	Datasheet	723In Stock	2,40 € 1,78 € 1,63 € 1,46 € View 1,38 € 1,35 € 1,29 € 1,24 € 1,22 €	Min.: 1 Mult.: 1	SMD/SMT	QFN-24	CIP-51 8051	8 bit	72 MHz	32 kB	2.25 kB	10 bit/12 bit/14 bit	20 I/O	2.2 V	3.6 V	+ 105 C		Tube
8-bit Microcontrollers - MCU USB-Flash-16k-ADC-QFN28 OTP available (T321-GM) C8051F321-GM Silicon Labs 1: 12,90 € 1 533In Stock NRND	Mfr. Part No. C8051F321-GM Mouser Part No 634-C8051F321-GM NRND	Silicon Labs	8-bit Microcontrollers - MCU USB-Flash-16k-ADC-QFN28 OTP available (T321-GM)	Datasheet	1 533In Stock	12,90 € 10,37 € 9,37 € 8,78 € View 8,74 € 8,23 € 8,01 € Quote	Min.: 1 Mult.: 1	SMD/SMT	QFN-28	CIP-51 8051	8 bit	25 MHz	16 kB	2.3 kB	10 bit	21 I/O	2.7 V	3.6 V	+ 85 C		Tube
8-bit Microcontrollers - MCU 8051 25 MHz 8 kB flash 0.5 kB RAM 8-bit Busy Bee MCU EFM8BB10F8G-A-QFN20R Silicon Labs 1: 0,791 € 50 406In Stock 15 000On Order	Mfr. Part No. EFM8BB10F8G-A-QFN20R Mouser Part No 634-8BB10F8GAQF20R	Silicon Labs	8-bit Microcontrollers - MCU 8051 25 MHz 8 kB flash 0.5 kB RAM 8-bit Busy Bee MCU Learn More about Silicon Labs siliconlabs efm8 busy bee	Datasheet	50 406In Stock 15 000On Order On Order Ship Dates Mfr. No: EFM8BB10F8G-A-QFN20R Stock: 50 406 Can Dispatch Immediately On Order: 6 000 Pending 9 000 Expected 12/11/2026 Factory Lead Time: 12 Weeks	Cut Tape 0,791 € 0,67 € 0,55 € 0,514 € 0,481 € Reel 0,481 € MouseReel Available	Min.: 1 Mult.: 1 : 2 500	SMD/SMT	QFN-20	CIP-51 8051	8 bit	25 MHz	8 kB	512 B	12 bit	16 I/O	2.2 V	3.6 V	+ 85 C		Reel, Cut Tape, MouseReel
8-bit Microcontrollers - MCU 8051 25 MHz 2 kB flash 0.25 kB RAM 8-bit Busy Bee MCU EFM8BB10F2G-A-QFN20R Silicon Labs 1: 0,74 € 15 521In Stock	Mfr. Part No. EFM8BB10F2G-A-QFN20R Mouser Part No 634-8BB10F2GAQF20R	Silicon Labs	8-bit Microcontrollers - MCU 8051 25 MHz 2 kB flash 0.25 kB RAM 8-bit Busy Bee MCU Learn More about Silicon Labs siliconlabs efm8 busy bee	Datasheet	15 521In Stock	Cut Tape 0,74 € 0,569 € 0,508 € 0,464 € Reel 0,383 € View 0,448 € 0,413 € 0,391 € 0,378 € MouseReel Available	Min.: 1 Mult.: 1 : 2 500	SMD/SMT	QFN-20	CIP-51 8051	8 bit	25 MHz	2 kB	256 B	12 bit	16 I/O	2.2 V	3.6 V	+ 85 C		Reel, Cut Tape, MouseReel
8-bit Microcontrollers - MCU 8051 25 MHz 2 kB flash 0.25 kB RAM 8-bit Sleepy Bee MCU EFM8SB10F2G-A-QFN20R Silicon Labs 1: 1,17 € 3 518In Stock 16 500Expected 20/11/2026	Mfr. Part No. EFM8SB10F2G-A-QFN20R Mouser Part No 634-8SB10F2GAQF20R	Silicon Labs	8-bit Microcontrollers - MCU 8051 25 MHz 2 kB flash 0.25 kB RAM 8-bit Sleepy Bee MCU	Datasheet	3 518In Stock 16 500Expected 20/11/2026	Cut Tape 1,17 € 0,903 € 0,797 € 0,726 € Reel 0,657 € View 0,708 € 0,657 € 0,58 € MouseReel Available	Min.: 1 Mult.: 1 : 2 500	SMD/SMT	QFN-20	CIP-51 8051	8 bit	25 MHz	2 kB	256 B	12 bit	16 I/O	1.8 V	3.6 V	+ 85 C		Reel, Cut Tape, MouseReel
8-bit Microcontrollers - MCU 8051 25 MHz 8 kB flash 0.5 kB RAM 8-bit Sleepy Bee MCU EFM8SB10F8G-A-QFN24R Silicon Labs 1: 1,51 € 3 031In Stock	Mfr. Part No. EFM8SB10F8G-A-QFN24R Mouser Part No 634-8SB10F8GAQF24R	Silicon Labs	8-bit Microcontrollers - MCU 8051 25 MHz 8 kB flash 0.5 kB RAM 8-bit Sleepy Bee MCU	Datasheet	3 031In Stock	Cut Tape 1,51 € 1,19 € 1,06 € 0,963 € Reel 0,805 € View 0,929 € 0,869 € 0,834 € 0,796 € MouseReel Available	Min.: 1 Mult.: 1 : 2 500	SMD/SMT		CIP-51 8051	8 bit	25 MHz	8 kB	512 B	12 bit	17 I/O	1.8 V	3.6 V	+ 85 C		Reel, Cut Tape, MouseReel
8-bit Microcontrollers - MCU 8051 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU EFM8BB21F16I-C-QSOP24 Silicon Labs 1: 1,64 € 3 126In Stock End of Life	Mfr. Part No. EFM8BB21F16I-C-QSOP24 Mouser Part No 634-8BB21F16ICQSOP24 End of Life	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	3 126In Stock	1,64 € 1,39 € 1,22 € 1,15 € View 1,04 € 0,886 €	Min.: 1 Mult.: 1	SMD/SMT	QSOP-24	CIP-51 8051	8 bit	50 MHz	16 kB	2.3 kB	12 bit	21 I/O	2.2 V	3.6 V	+ 125 C		Tube
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 076In 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 076In Stock	3,87 € 2,56 € 2,17 € 1,99 € View 1,89 € 1,69 € 1,67 € 1,52 € 1,51 €	Min.: 1 Mult.: 1	SMD/SMT	QFN-32	CIP-51 8051	8 bit	25 MHz	64 kB	4.25 kB	10 bit	24 I/O	1.8 V	3.6 V	+ 85 C		Tube
8-bit Microcontrollers - MCU 8051 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU EFM8BB21F16I-C-QFN20 Silicon Labs 1: 1,51 € 3 229In Stock	Mfr. Part No. EFM8BB21F16I-C-QFN20 Mouser Part No 634-8BB21F16I-CQFN20	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	3 229In Stock	1,51 € 1,27 € 1,12 € 1,04 € View 1,01 € 0,877 € 0,741 € 0,694 €	Min.: 1 Mult.: 1	SMD/SMT	QFN-20	CIP-51 8051	8 bit	50 MHz	16 kB	2.3 kB	12 bit	16 I/O	2.2 V	3.6 V	+ 125 C		Tube
8-bit Microcontrollers - MCU 8051 25 MHz 8 kB flash 0.5 kB RAM 8-bit Sleepy Bee MCU EFM8SB10F8G-A-CSP16R Silicon Labs 1: 1,71 € 4 899In Stock 7 500On Order	Mfr. Part No. EFM8SB10F8G-A-CSP16R Mouser Part No 634-8SB10F8GA-CSP16R	Silicon Labs	8-bit Microcontrollers - MCU 8051 25 MHz 8 kB flash 0.5 kB RAM 8-bit Sleepy Bee MCU	Datasheet	4 899In Stock 7 500On Order	Cut Tape 1,71 € 1,26 € 1,15 € 1,02 € Reel 0,877 € View 0,963 € 0,929 € 0,894 € 0,85 € MouseReel Available	Min.: 1 Mult.: 1 : 2 500	SMD/SMT	CSP-16	CIP-51 8051	8 bit	25 MHz	8 kB	256 B	12 bit	13 I/O	3.6 V	2.2 V	+ 85 C		Reel, Cut Tape, MouseReel
8-bit Microcontrollers - MCU 8051 50 MHz 64 kB flash 4.25 kB RAM 8-bit Busy Bee MCU EFM8BB31F64G-D-QFN24R Silicon Labs 1: 3,16 € 2 120In Stock	Mfr. Part No. EFM8BB31F64G-D-QFN24R Mouser Part No 634-EF8BB31F64GDF24R	Silicon Labs	8-bit Microcontrollers - MCU 8051 50 MHz 64 kB flash 4.25 kB RAM 8-bit Busy Bee MCU Learn More about Silicon Labs siliconlabs efm8 busy bee	Datasheet	2 120In Stock	Cut Tape 3,16 € 2,13 € 1,98 € 1,72 € Reel 1,33 € View 1,61 € 1,41 € 1,33 € 1,14 € MouseReel Available	Min.: 1 Mult.: 1 : 2 500	SMD/SMT	QFN-24	CIP-51 8051	8 bit	50 MHz	64 kB	4.35 kB	10 bit, 12 bit	20 I/O	2.2 V	3.6 V	+ 85 C		Reel, Cut Tape, MouseReel
8-bit Microcontrollers - MCU 8051 50 MHz 64 kB flash 4.25 kB RAM 8-bit Busy Bee MCU EFM8BB31F64G-D-QFN24 Silicon Labs 1: 2,18 € 5 887In Stock	Mfr. Part No. EFM8BB31F64G-D-QFN24 Mouser Part No 634-EF8BB31F64GDQF24	Silicon Labs	8-bit Microcontrollers - MCU 8051 50 MHz 64 kB flash 4.25 kB RAM 8-bit Busy Bee MCU Learn More about Silicon Labs siliconlabs efm8 busy bee	Datasheet	5 887In Stock	2,18 € 1,83 € 1,60 € 1,50 € View 1,34 € 1,25 € 1,15 € 1,11 €	Min.: 1 Mult.: 1	SMD/SMT	QFN-24	CIP-51 8051	8 bit	50 MHz	64 kB	4.35 kB	10 bit, 12 bit	20 I/O	2.2 V	3.6 V	+ 85 C		Tube
8-bit Microcontrollers - MCU 8051 50 MHz 64 kB flash 4.25 kB RAM 8-bit Busy Bee MCU EFM8BB31F64I-D-4QFN24R Silicon Labs 1: 2,45 € 993In Stock 1 500Expected 30/11/2026	Mfr. Part No. EFM8BB31F64I-D-4QFN24R Mouser Part No 634-EF8BB31F64ID424R	Silicon Labs	8-bit Microcontrollers - MCU 8051 50 MHz 64 kB flash 4.25 kB RAM 8-bit Busy Bee MCU Learn More about Silicon Labs siliconlabs efm8 busy bee	Datasheet	993In Stock 1 500Expected 30/11/2026	Cut Tape 2,45 € 1,82 € 1,67 € 1,50 € Reel 1,35 € View 1,42 € 1,38 € 1,34 € MouseReel Available	Min.: 1 Mult.: 1 : 2 500	SMD/SMT	QFN-24	CIP-51 8051	8 bit	50 MHz	64 kB	4.35 kB	10 bit, 12 bit	20 I/O	2.2 V	3.6 V	+ 125 C		Reel, Cut Tape, MouseReel
8-bit Microcontrollers - MCU 8051 50 MHz 64 kB flash 4.25 kB RAM 8-bit Busy Bee MCU EFM8BB31F64I-D-4QFN24 Silicon Labs 1: 2,58 € 2 758In Stock	Mfr. Part No. EFM8BB31F64I-D-4QFN24 Mouser Part No 634-EF8BB31F64ID4F24	Silicon Labs	8-bit Microcontrollers - MCU 8051 50 MHz 64 kB flash 4.25 kB RAM 8-bit Busy Bee MCU Learn More about Silicon Labs siliconlabs efm8 busy bee	Datasheet	2 758In Stock	2,58 € 1,93 € 1,75 € 1,57 € View 1,49 € 1,45 € 1,39 € 1,33 € 1,32 €	Min.: 1 Mult.: 1	SMD/SMT	QFN-24	CIP-51 8051	8 bit	50 MHz	64 kB	4.35 kB	10 bit, 12 bit	20 I/O	2.2 V	3.6 V	+ 125 C		Tube
8-bit Microcontrollers - MCU 8051 50 MHz 64 kB flash 4.25 kB RAM 8-bit Busy Bee MCU EFM8BB31F64I-D-QFN32R Silicon Labs 1: 2,63 € 2 500In Stock	Mfr. Part No. EFM8BB31F64I-D-QFN32R Mouser Part No 634-EF8BB31F64IDN32R	Silicon Labs	8-bit Microcontrollers - MCU 8051 50 MHz 64 kB flash 4.25 kB RAM 8-bit Busy Bee MCU Learn More about Silicon Labs siliconlabs efm8 busy bee	Datasheet	2 500In Stock	Cut Tape 2,63 € 1,96 € 1,79 € 1,61 € Reel 1,37 € View 1,51 € 1,48 € 1,41 € 1,34 €	Min.: 1 Mult.: 1 : 2 500	SMD/SMT	QFN-32	CIP-51 8051	8 bit	50 MHz	64 kB	4.35 kB	10 bit, 12 bit	29 I/O	2.2 V	3.6 V	+ 125 C		Reel, Cut Tape
8-bit Microcontrollers - MCU 8051 50 MHz 64 kB flash 4.25 kB RAM 8-bit Busy Bee MCU EFM8BB31F64I-D-QFN32 Silicon Labs 1: 2,64 € 1 517In Stock	Mfr. Part No. EFM8BB31F64I-D-QFN32 Mouser Part No 634-EF8BB31F64IDQN32	Silicon Labs	8-bit Microcontrollers - MCU 8051 50 MHz 64 kB flash 4.25 kB RAM 8-bit Busy Bee MCU Learn More about Silicon Labs siliconlabs efm8 busy bee	Datasheet	1 517In Stock	2,64 € 1,97 € 1,80 € 1,62 € View 1,52 € 1,49 € 1,42 € 1,37 € 1,34 €	Min.: 1 Mult.: 1	SMD/SMT	QFN-32	CIP-51 8051	8 bit	50 MHz	64 kB	4.35 kB	10 bit, 12 bit	29 I/O	2.2 V	3.6 V	+ 125 C		Tray
8-bit Microcontrollers - MCU 8051 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU EFM8BB21F16A-C-QFN20 Silicon Labs 1: 2,89 € 2 983In Stock	Mfr. Part No. EFM8BB21F16A-C-QFN20 Mouser Part No 634-EFM8BB21F16FN20	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	2 983In Stock	2,89 € 2,28 € 2,04 € 1,87 € View 1,80 € 1,70 € 1,66 € 1,63 € 1,58 €	Min.: 1 Mult.: 1	SMD/SMT	QFN-20	CIP-51 8051	8 bit	50 MHz	16 kB	2.25 kB	12 bit	16 I/O	2.2 V	3.6 V	+ 125 C	AEC-Q100	Tube