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Silicon Labs 8-bit Microcontrollers - MCU

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (JPY) 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 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU EFM8BB21F16A-C-QFN20 Silicon Labs 1: ¥558.1 2,983In Stock	Mfr. Part # EFM8BB21F16A-C-QFN20 Mouser Part # 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	¥558.1 ¥440.2 ¥393.7 ¥360.4 View ¥347.1 ¥328.9 ¥320.6 ¥313.9 ¥305.6	Min.: 1 Mult.: 1	CIP-51 8051	16 kB	2.25 kB	QFN-20	50 MHz	12 bit	16 I/O	2.2 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 125 C	EFM8BB2	AEC-Q100	Tube
8-bit Microcontrollers - MCU 8051 75 MHz 32 kB flash 2.25 kB RAM 8-bit Laser Bee MCU EFM8LB12F32E-C-QFN24R Silicon Labs 1: ¥503.3 980In Stock	Mfr. Part # EFM8LB12F32E-C-QFN24R Mouser Part # 634-LB12F32ECQFN24R	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	980In Stock	Cut Tape ¥503.3 ¥375.4 ¥342.2 ¥307.3 Reel ¥260.8 View ¥290.7 ¥284 ¥269.1 ¥255.8 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	CIP-51 8051	32 kB	2.25 kB	QFN-24	72 MHz	10 bit/12 bit/14 bit	20 I/O	2.2 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 105 C	EFM8LB1		Reel, Cut Tape, MouseReel
8-bit Microcontrollers - MCU 8051 75 MHz 64 kB flash 4.25 kB RAM 8-bit Laser Bee MCU EFM8LB12F64E-C-QFN32R Silicon Labs 1: ¥588 3,892In Stock	Mfr. Part # EFM8LB12F64E-C-QFN32R Mouser Part # 634-LB12F64ECQFN32R	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	3,892In Stock	Cut Tape ¥588 ¥456.8 ¥406.9 ¥373.7 View Reel ¥295.7 ¥363.8 ¥348.8 ¥295.7	Min.: 1 Mult.: 1 : 2,500	CIP-51 8051	64 kB	4.25 kB	QFN-32	72 MHz	10 bit/12 bit/14 bit	29 I/O	2.2 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 105 C	EFM8LB1		Reel, Cut Tape
8-bit Microcontrollers - MCU 8051 25 MHz 8 kB LFO 8-bit MCU C8051F330-GM Silicon Labs 1: ¥1,749 826In Stock 1,085On Order NRND	Mfr. Part # C8051F330-GM Mouser Part # 634-C8051F330-GM NRND	Silicon Labs	8-bit Microcontrollers - MCU 8051 25 MHz 8 kB LFO 8-bit MCU	Datasheet	826In Stock 1,085On Order	¥1,749 ¥1,365.3 ¥1,269 ¥1,164.4 View ¥1,104.6 ¥1,083 ¥1,058.1 ¥1,008.2	Min.: 1 Mult.: 1	8051	8 kB	768 B	QFN-20	25 MHz	10 bit	17 I/O	2.7 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 85 C	C8051F330		Tube
8-bit Microcontrollers - MCU 8051 25 MHz 16 kB LFO 8-bit MCU C8051F338-GM Silicon Labs 1: ¥1,935.1 57In Stock NRND	Mfr. Part # C8051F338-GM Mouser Part # 634-C8051F338-GM NRND	Silicon Labs	8-bit Microcontrollers - MCU 8051 25 MHz 16 kB LFO 8-bit MCU	Datasheet	57In Stock	¥1,935.1 ¥1,514.8 ¥1,410.2 ¥1,295.6 View ¥1,282.3 ¥1,207.5 ¥1,179.3 Quote	Min.: 1 Mult.: 1	8051	16 kB	768 B	QFN-24	25 MHz	10 bit	21 I/O	2.7 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 85 C	C8051F338		Tube
8-bit Microcontrollers - MCU 8051 50 MHz 64 kB 8-bit MCU C8051F381-GM Silicon Labs 1: ¥1,205.9 415In Stock 1,533Expected 6/18/2027 NRND	Mfr. Part # C8051F381-GM Mouser Part # 634-C8051F381-GM NRND	Silicon Labs	8-bit Microcontrollers - MCU 8051 50 MHz 64 kB 8-bit MCU Learn More about Silicon Labs silabs usb mcus	Datasheet	415In Stock 1,533Expected 6/18/2027	¥1,205.9 ¥930.2 ¥860.4 ¥784 View ¥727.5 ¥725.9 ¥704.3	Min.: 1 Mult.: 1	8051	64 kB	4.25 kB	QFN-32	48 MHz	10 bit	25 I/O	2.7 V	5.25 V	SMD/SMT	8 bit	- 40 C	+ 85 C	C8051F381		Tube
8-bit Microcontrollers - MCU 8051 50 MHz 32 kB 8-bit MCU C8051F411-GM Silicon Labs 1: ¥2,244 1,052In Stock 1,533Expected 11/4/2026 NRND	Mfr. Part # C8051F411-GM Mouser Part # 634-C8051F411-GM NRND	Silicon Labs	8-bit Microcontrollers - MCU 8051 50 MHz 32 kB 8-bit MCU	Datasheet	1,052In Stock 1,533Expected 11/4/2026	¥2,244 ¥1,842 ¥1,680.9 ¥1,587.9 View ¥1,581.3 ¥1,501.5 Quote	Min.: 1 Mult.: 1	8051	32 kB	2.31 kB	QFN-28	50 MHz	12 bit	20 I/O	2 V	5.25 V	SMD/SMT	8 bit	- 40 C	+ 85 C	C8051F411		Tube
8-bit Microcontrollers - MCU 8051 25 MHz 8 kB flash 0.5 kB RAM 8-bit Busy Bee MCU EFM8BB10F8G-A-SOIC16 Silicon Labs 1: ¥192.7 1,235In Stock	Mfr. Part # EFM8BB10F8G-A-SOIC16 Mouser Part # 634-8BB10F8GASO16	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	1,235In Stock	¥192.7 ¥136.7 ¥132.4 ¥120.1 View ¥107.1 ¥97.7 ¥94	Min.: 1 Mult.: 1	CIP-51 8051	8 kB	512 B	SOIC-16	25 MHz	12 bit	13 I/O	2.2 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 85 C	EFM8BB1		Tube
8-bit Microcontrollers - MCU 8051 25 MHz 4 kB flash 0.5 kB RAM 8-bit Sleepy Bee MCU EFM8SB10F4G-A-QFN20 Silicon Labs 1: ¥265.8 2In Stock	Mfr. Part # EFM8SB10F4G-A-QFN20 Mouser Part # 634-8SB10F4GAQF20	Silicon Labs	8-bit Microcontrollers - MCU 8051 25 MHz 4 kB flash 0.5 kB RAM 8-bit Sleepy Bee MCU Learn More about Silicon Labs silabs efm8 sleepy bee	Datasheet	2In Stock	¥265.8 ¥194.3 ¥176.1 ¥156.6 View ¥147.2 ¥141.4 ¥139.7 ¥130.9 ¥127.9	Min.: 1 Mult.: 1	CIP-51 8051	4 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			Tube
8-bit Microcontrollers - MCU 8051 25 MHz 8 kB flash 0.5 kB RAM 8-bit Sleepy Bee MCU EFM8SB10F8G-A-QFN20R Silicon Labs 1: ¥280.7 408In Stock 4,500Expected 11/27/2026	Mfr. Part # EFM8SB10F8G-A-QFN20R Mouser Part # 634-8SB10F8GAQF20R	Silicon Labs	8-bit Microcontrollers - MCU 8051 25 MHz 8 kB flash 0.5 kB RAM 8-bit Sleepy Bee MCU	Datasheet	408In Stock 4,500Expected 11/27/2026	Cut Tape ¥280.7 ¥217.6 ¥192.7 ¥176.1 Reel ¥150.5 View ¥169.4 ¥155.8 ¥150.5 ¥143.2 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	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			Reel, Cut Tape, MouseReel
8-bit Microcontrollers - MCU 8kB/512B RAM, ADC, QFN20 C8051F850-C-GMR Silicon Labs 1: ¥490 309In Stock	Mfr. Part # C8051F850-C-GMR Mouser Part # 634-C8051F850-C-GMR	Silicon Labs	8-bit Microcontrollers - MCU 8kB/512B RAM, ADC, QFN20 Learn More about Silicon Labs silabs c8051f85 c8051f86 mcus	Datasheet	309In Stock	Cut Tape ¥490 ¥365.4 ¥333.9 ¥299 Reel ¥254.1 View ¥282.4 ¥275.7 ¥262.4 ¥249.2 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	8051	8 kB	512 B	QFN-20	25 MHz	12 bit	16 I/O	2.2 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 85 C	C8051F850		Reel, Cut Tape, MouseReel
8-bit Microcontrollers - MCU 8051 25 MHz 8 kB flash 0.5 kB RAM 8-bit Busy Bee MCU EFM8BB10F8A-A-QFN20 Silicon Labs 1: ¥423.6 20In Stock	Mfr. Part # EFM8BB10F8A-A-QFN20 Mouser Part # 634-FM8BB10F8AAQFN20	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	20In Stock	¥423.6 ¥313.9 ¥285.7 ¥255.8 View ¥242.5 ¥232.5 ¥224.2 ¥220.9 ¥214.3	Min.: 1 Mult.: 1	CIP-51 8051	8 kB	512 B		25 MHz	12 bit	16 I/O	2.2 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 125 C	EFM8BB1	AEC-Q100	Tube
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 0.5 kB RAM 9 GPIO BB5 8-bit MCU EFM8BB50F16I-A-QFN12 Silicon Labs 1: ¥169.4 100In Stock	Mfr. Part # EFM8BB50F16I-A-QFN12 Mouser Part # 634-M8BB50F16IAQFN12	Silicon Labs	8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 0.5 kB RAM 9 GPIO BB5 8-bit MCU Learn More about Silicon Labs efm8bb50 mcus	Datasheet	100In Stock	¥169.4 ¥122.1 ¥110 ¥96.7 View ¥90.4 ¥86.5 ¥83.7 ¥80.1 ¥78.1	Min.: 1 Mult.: 1		16 kB	512 B	QFN-12	50 MHz	12 bit	9 I/O	1.8 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 125 C	BB50		Cut Tape
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 0.5 kB RAM 12 GPIO BB5 8-bit MCU EFM8BB50F16I-A-QFN16 Silicon Labs 1: ¥152.8 71In Stock	Mfr. Part # EFM8BB50F16I-A-QFN16 Mouser Part # 634-M8BB50F16IAQFN16	Silicon Labs	8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 0.5 kB RAM 12 GPIO BB5 8-bit MCU Learn More about Silicon Labs efm8bb50 mcus	Datasheet	71In Stock	¥152.8 ¥122.4 ¥110 ¥92.5 View ¥92.4 ¥90.4 ¥87.5 ¥83.7 ¥81.7	Min.: 1 Mult.: 1		16 kB	512 B	QFN-16	50 MHz	12 bit	12 I/O	1.8 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 125 C	BB50		Cut Tape
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 4 kB flash 0.5 kB RAM 12 GPIO BB5 8-bit MCU EFM8BB50F4G-A-QFN16 Silicon Labs 1: ¥137.9 352In Stock	Mfr. Part # EFM8BB50F4G-A-QFN16 Mouser Part # 634-M8BB50F4GAQFN16	Silicon Labs	8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 4 kB flash 0.5 kB RAM 12 GPIO BB5 8-bit MCU Learn More about Silicon Labs efm8bb50 mcus	Datasheet	352In Stock	¥137.9 ¥118.3 ¥104.1 ¥93 View ¥70.6 ¥67.8 ¥64.9 ¥63.1	Min.: 1 Mult.: 1		4 kB	512 B	QFN-16	50 MHz	12 bit	12 I/O	1.8 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 85 C	BB50		Cut Tape
8-bit Microcontrollers - MCU 8051 25 MHz 32 kB 8-bit MCU C8051F005-GQ Silicon Labs 1: ¥5,873.3 174In Stock 800Expected 1/22/2027 End of Life	Mfr. Part # C8051F005-GQ Mouser Part # 634-C8051F005-GQ End of Life	Silicon Labs	8-bit Microcontrollers - MCU 8051 25 MHz 32 kB 8-bit MCU	Datasheet	174In Stock 800Expected 1/22/2027	¥5,873.3 ¥4,906.6 ¥4,433.2 ¥4,185.7	Min.: 1 Mult.: 1	8051	32 kB	2.25 kB	TQFP-64	25 MHz	12 bit	32 I/O	2.7 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 85 C	C8051F005		Tray
8-bit Microcontrollers - MCU 8051 25 MHz 32 kB 8-bit MCU C8051F005-GQR Silicon Labs 1: ¥5,732.1 234In Stock End of Life	Mfr. Part # C8051F005-GQR Mouser Part # 634-C8051F005-GQR End of Life	Silicon Labs	8-bit Microcontrollers - MCU 8051 25 MHz 32 kB 8-bit MCU	Datasheet	234In Stock	Cut Tape ¥5,732.1 ¥4,640.8 ¥4,368.4 ¥4,187.4 ¥3,924.9 Reel ¥3,924.9	Min.: 1 Mult.: 1 : 500	8051	32 kB	2.25 kB	TQFP-64	25 MHz	12 bit	32 I/O	2.7 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 85 C	C8051F005		Reel, Cut Tape
8-bit Microcontrollers - MCU 8051 25 MHz 64 kB 8-bit MCU C8051F021-GQ Silicon Labs 1: ¥7,222 48In Stock End of Life	Mfr. Part # C8051F021-GQ Mouser Part # 634-C8051F021-GQ End of Life	Silicon Labs	8-bit Microcontrollers - MCU 8051 25 MHz 64 kB 8-bit MCU	Datasheet	48In Stock	¥7,222 ¥5,901.5 ¥5,571 ¥5,416.5 ¥5,036.2	Min.: 1 Mult.: 1	8051	64 kB	4.35 kB	TQFP-64	25 MHz	8 bit, 12 bit	32 I/O	2.7 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 85 C	C8051F021		Tray
8-bit Microcontrollers - MCU 8051 25 MHz 64 kB 8-bit MCU C8051F021-GQR Silicon Labs 1: ¥7,188.8 178In Stock End of Life	Mfr. Part # C8051F021-GQR Mouser Part # 634-C8051F021-GQR End of Life	Silicon Labs	8-bit Microcontrollers - MCU 8051 25 MHz 64 kB 8-bit MCU	Datasheet	178In Stock	Cut Tape ¥7,188.8 ¥5,899.9 ¥5,504.6 ¥5,418.2 ¥5,403.2 Reel ¥4,826.9 MouseReel Available	Min.: 1 Mult.: 1 : 500	8051	64 kB	4.35 kB	TQFP-64	25 MHz	8 bit, 12 bit	32 I/O	2.7 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 85 C	C8051F021		Reel, Cut Tape, MouseReel
8-bit Microcontrollers - MCU 100MIPS,128KB,12ADC,100Pin MCU C8051F120-GQR Silicon Labs 1: ¥9,177 181In Stock End of Life	Mfr. Part # C8051F120-GQR Mouser Part # 634-C8051F120-GQR End of Life	Silicon Labs	8-bit Microcontrollers - MCU 100MIPS,128KB,12ADC,100Pin MCU	Datasheet	181In Stock	Cut Tape ¥9,177 ¥7,499.4 ¥7,079.2 ¥6,883.2 Reel ¥6,398.2	Min.: 1 Mult.: 1 : 250	8051	128 kB	8.25 kB	TQFP-100	100 MHz	8 bit, 12 bit	64 I/O	3 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 85 C	C8051F120		Reel, Cut Tape
8-bit Microcontrollers - MCU 8051 50 MHz 64 kB 5 V CAN LIN 8-bit MCU C8051F500-IM Silicon Labs 1: ¥2,182.6 181In Stock End of Life	Mfr. Part # C8051F500-IM Mouser Part # 634-C8051F500-IM End of Life	Silicon Labs	8-bit Microcontrollers - MCU 8051 50 MHz 64 kB 5 V CAN LIN 8-bit MCU	Datasheet	181In Stock	¥2,182.6 ¥1,901.8 ¥1,591.2 ¥1,461.7 View ¥1,453.4 ¥1,405.2 ¥1,386.9 Quote	Min.: 1 Mult.: 1	8051	64 kB	4.25 kB	QFN-48	50 MHz	12 bit	40 I/O	1.8 V	5.25 V	SMD/SMT	8 bit	- 40 C	+ 125 C	C8051F500	AEC-Q100	Tube
8-bit Microcontrollers - MCU 8051 25 MHz 8 kB 5 V LIN 8-bit MCU C8051F530-C-IM Silicon Labs 1: ¥960.1 778In Stock End of Life	Mfr. Part # C8051F530-C-IM Mouser Part # 634-C8051F530-C-IM End of Life	Silicon Labs	8-bit Microcontrollers - MCU 8051 25 MHz 8 kB 5 V LIN 8-bit MCU	Datasheet	778In Stock	¥960.1 ¥730.8 ¥674.4 ¥611.2 View ¥581.4 ¥573 ¥564.7	Min.: 1 Mult.: 1	8051	8 kB	256 B	QFN-20	25 MHz	12 bit	16 I/O	2 V	5.25 V	SMD/SMT	8 bit	- 40 C	+ 125 C	C8051F530	AEC-Q100	Tube
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: ¥284 50In Stock 2,520Expected 1/8/2027	Mfr. Part # EFM8BB21F16G-C-QFN20 Mouser Part # 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 1/8/2027	¥284 ¥240.8 ¥210.9 ¥176.1	Min.: 1 Mult.: 1	CIP-51 8051	16 kB	2.3 kB	QFN-20	50 MHz	12 bit	16 I/O	2.2 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 85 C	EFM8BB2		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: ¥428.5 164In Stock	Mfr. Part # EFM8UB10F16G-C-QFN20 Mouser Part # 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	¥428.5 ¥360.4 ¥315.6 ¥295.7 ¥264.1	Min.: 1 Mult.: 1	CIP-51 8051	16 kB	2.25 kB	QFN-20	50 MHz	12 bit	13 I/O	2.2 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 85 C	EFM8UB		Tube
8-bit Microcontrollers - MCU 8051 25 MHz 16 kB flash 2 kB RAM 8-bit Universal Bee MCU EFM8UB10F16G-C-QFN20R Silicon Labs 1: ¥438.5 110In Stock 49,500On Order	Mfr. Part # EFM8UB10F16G-C-QFN20R Mouser Part # 634-8UB10F16GCQFN20R	Silicon Labs	8-bit Microcontrollers - MCU 8051 25 MHz 16 kB flash 2 kB RAM 8-bit Universal Bee MCU	Datasheet	110In Stock 49,500On Order On Order Ship Dates Mfr. #: EFM8UB10F16G-C-QFN20R Stock: 110 Can Ship Immediately On Order: 40,500 Expected 1/8/2027 9,000 Expected 1/12/2027 Factory Lead-Time: 31 Weeks	Cut Tape ¥438.5 ¥367.1 ¥322.2 ¥305.6 View Reel ¥250.8 ¥299 ¥267.4 ¥250.8 ¥250.8 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	CIP-51 8051	16 kB	2.25 kB	QFN-20	50 MHz	12 bit	13 I/O	2.2 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 85 C	EFM8UB		Reel, Cut Tape, MouseReel