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Silicon Labs 8-bit Microcontrollers - MCU

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (GBP) 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 8 kB flash 0.5 kB RAM 8-bit Busy Bee MCU EFM8BB10F8I-A-QFN20 Silicon Labs 1: £1.01 7,560Expected 04/12/2026	Mfr. Part No. EFM8BB10F8I-A-QFN20 Mouser Part No 634-FM8BB10F8IAQFN20	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	7,560Expected 04/12/2026	£1.01 £0.734 £0.664 £0.588 View £0.55 £0.528 £0.505 £0.491 £0.479	Min.: 1 Mult.: 1	CIP-51 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	+ 125 C	EFM8BB1		Tube
8-bit Microcontrollers - MCU 50MIPS,128KB,12ADC,100Pin MCU C8051F124-GQ Silicon Labs 1: £36.47 1,102Expected 04/12/2026 End of Life	Mfr. Part No. C8051F124-GQ Mouser Part No 634-C8051F124-GQ End of Life	Silicon Labs	8-bit Microcontrollers - MCU 50MIPS,128KB,12ADC,100Pin MCU	Datasheet	1,102Expected 04/12/2026	£36.47 £30.14 £28.23 £27.28 Quote Quote	Min.: 1 Mult.: 1	8051	128 kB	8.25 kB	TQFP-100	50 MHz	8 bit, 12 bit	64 I/O	2.7 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 85 C	C8051F124		Tray
8-bit Microcontrollers - MCU 25 MIPS, 8 kB, 256, SPI, UART, LIN 2.1, TSSOP20 C8051F530A-IT Silicon Labs 1: £4.92 3,854Expected 01/01/2027 End of Life	Mfr. Part No. C8051F530A-IT Mouser Part No 634-C8051F530A-IT End of Life	Silicon Labs	8-bit Microcontrollers - MCU 25 MIPS, 8 kB, 256, SPI, UART, LIN 2.1, TSSOP20	Datasheet	3,854Expected 01/01/2027	£4.92 £3.78 £3.28 £3.03 £2.92	Min.: 1 Mult.: 1	8051	8 kB	256 B	TSSOP-20	25 MHz	12 bit	16 I/O	1.8 V	5.25 V	SMD/SMT	8 bit	- 40 C	+ 125 C	C8051F530A		Tube
8-bit Microcontrollers - MCU 64kB/4kB RAM, 10b ADC, DC-DC, 0.9V, QFN32 C8051F930-G-GM Silicon Labs 1: £4.21 10,632Expected 02/04/2027 End of Life	Mfr. Part No. C8051F930-G-GM Mouser Part No 634-C8051F930-G-GM End of Life	Silicon Labs	8-bit Microcontrollers - MCU 64kB/4kB RAM, 10b ADC, DC-DC, 0.9V, QFN32 Learn More about Silicon Labs Silicon_Labs_C8051F9xx_MCU	Datasheet	10,632Expected 02/04/2027	£4.21 £3.33 £2.98 £2.76 View £2.69 £2.55 £2.54	Min.: 1 Mult.: 1	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			Tube
8-bit Microcontrollers - MCU 8051 50 MHz 8 kB 8-bit MCU C8051F353-GM Silicon Labs 1: £9.13 1,533Expected 17/11/2026 NRND	Mfr. Part No. C8051F353-GM Mouser Part No 634-C8051F353-GM NRND	Silicon Labs	8-bit Microcontrollers - MCU 8051 50 MHz 8 kB 8-bit MCU	Datasheet	1,533Expected 17/11/2026	£9.13 £7.15 £6.65 £6.11 View £6.05 £5.69 £5.56 Quote	Min.: 1 Mult.: 1	8051	8 kB	768 B	QFN-28	50 MHz	16 bit	17 I/O	2.7 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 85 C	C8051F353		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: £1.60 1,911On Order NRND	Mfr. Part No. EFM8SB20F16G-B-QFN24 Mouser Part No 634-EFM8SBF16GBQFN24 NRND	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	1,911On Order	£1.60 £1.22 £1.09 £1.00 View £0.952 £0.934 £0.908 £0.882	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 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU EFM8BB22F16I-C-QFN28 Silicon Labs 1: £1.69 1In Stock	Mfr. Part No. EFM8BB22F16I-C-QFN28 Mouser Part No 634-8BB22F16ICQFN28	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	1In Stock	£1.69 £1.25 £1.13 £1.01 View £0.952 £0.925 £0.89 £0.871 £0.849	Min.: 1 Mult.: 1	CIP-51 8051	16 kB	2.3 kB	QFN-28	50 MHz	12 bit	22 I/O	2.2 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 125 C	EFM8BB2		Tube
8-bit Microcontrollers - MCU 8kB/256B RAM, 8b ADC, 2% osc, QFN11 OTP available (T600-GM) C8051F300-GMR Silicon Labs 1: £5.76 1,400Expected 27/11/2026	Mfr. Part No. C8051F300-GMR Mouser Part No 634-C8051F300-GMR	Silicon Labs	8-bit Microcontrollers - MCU 8kB/256B RAM, 8b ADC, 2% osc, QFN11 OTP available (T600-GM)	Datasheet	1,400Expected 27/11/2026	Cut Tape £5.76 £4.48 £4.12 £3.75 £3.62 Reel £3.10 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	8051	8 kB	256 B	QFN-11	25 MHz	8 bit	8 I/O	2.7 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 85 C	C8051F300		Reel, Cut Tape, MouseReel
8-bit Microcontrollers - MCU 8kB/256B RAM, 2% osc, QFN11 OTP available (T601-GM) C8051F301-GMR Silicon Labs 1: £5.44 3,000Expected 27/11/2026	Mfr. Part No. C8051F301-GMR Mouser Part No 634-C8051F301-GMR	Silicon Labs	8-bit Microcontrollers - MCU 8kB/256B RAM, 2% osc, QFN11 OTP available (T601-GM)	Datasheet	3,000Expected 27/11/2026	Cut Tape £5.44 £4.29 £3.85 £3.58 View Reel £3.05 £3.49 £3.33 £3.05 £3.05 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	8051	8 kB	256 B	QFN-11	25 MHz	No ADC	8 I/O	2.7 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 85 C	C8051F301		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-CSP16 Silicon Labs 1: £1.42 3,550On Order NRND	Mfr. Part No. EFM8SB10F8G-A-CSP16 Mouser Part No 634-8SB10F8G-A-CSP16 NRND	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	3,550On Order On Order Ship Dates Mfr. No: EFM8SB10F8G-A-CSP16 Stock: 0 On Order: 1,150 Expected 06/11/2026 2,400 Expected 10/11/2026 Factory Lead Time: 20 Weeks	£1.42 £1.11 £0.995 £0.882 View £0.849 £0.796 £0.788 £0.759 £0.751	Min.: 1 Mult.: 1	CIP-51 8051	8 kB	512 B	CSP-16	25 MHz	12 bit	13 I/O	1.8 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 85 C			Cut Tape
8-bit Microcontrollers - MCU 8051 75 MHz 16 kB flash 1.25 kB RAM 8-bit Laser Bee MCU EFM8LB10F16E-C-QFP32 Silicon Labs 1: £2.01 1,249On Order NRND	Mfr. Part No. EFM8LB10F16E-C-QFP32 Mouser Part No 634-LB10F16ECQFP32 NRND	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	1,249On Order	£2.01 £1.48 £1.36 £1.21 £1.19	Min.: 1 Mult.: 1	CIP-51 8051	16 kB	1.25 kB	QFP-32	72 MHz	10 bit/12 bit/14 bit	28 I/O	2.2 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 105 C	EFM8LB1		Tray
8-bit Microcontrollers - MCU 8051 50 MHz 64 kB 5 V CAN LIN 8-bit MCU C8051F508-IM Silicon Labs 1: £10.24 370Expected 25/06/2027 End of Life	Mfr. Part No. C8051F508-IM Mouser Part No 634-C8051F508-IM End of Life	Silicon Labs	8-bit Microcontrollers - MCU 8051 50 MHz 64 kB 5 V CAN LIN 8-bit MCU Learn More about Silicon Labs silicon c8051f58x automotive industrial mcus	Datasheet	370Expected 25/06/2027	£10.24 £8.02 £7.47 £6.86 View £6.79 £6.57	Min.: 1 Mult.: 1	8051	64 kB	4.25 kB	QFN-40	50 MHz	12 bit	33 I/O	1.8 V	5.25 V	SMD/SMT	8 bit	- 40 C	+ 125 C	C8051F508	AEC-Q100	Tube
8-bit Microcontrollers - MCU 8051 25 MHz 16 kB flash 2 kB RAM 8-bit Universal Bee MCU EFM8UB10F16G-C-QFN28 Silicon Labs 1: £1.97 526Expected 08/01/2027	Mfr. Part No. EFM8UB10F16G-C-QFN28 Mouser Part No 634-8UB10F16GCQFN28	Silicon Labs	8-bit Microcontrollers - MCU 8051 25 MHz 16 kB flash 2 kB RAM 8-bit Universal Bee MCU	Datasheet	526Expected 08/01/2027	£1.97 £1.47 £1.34 £1.20 View £1.13 £1.09 £1.05	Min.: 1 Mult.: 1	CIP-51 8051	16 kB	2.25 kB	QFN-28	50 MHz	12 bit	22 I/O	2.2 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 85 C	EFM8UB		Tube
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU EFM8BB52F16G-C-TSSOP20 Silicon Labs 1: £0.856 179On Order	Mfr. Part No. EFM8BB52F16G-C-TSSOP20 Mouser Part No 634-EFM852F16GCTOP20	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	179On Order	£0.856 £0.641 £0.573 £0.513 View £0.512 £0.488 £0.481 £0.467 £0.455	Min.: 1 Mult.: 1		16 kB	1.28 kB	TSSOP-20			16 I/O	1.8 V	5.5 V	SMD/SMT		- 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 EFM8BB52F16I-C-TSSOP20 Silicon Labs 1: £0.882 198Expected 01/01/2027	Mfr. Part No. EFM8BB52F16I-C-TSSOP20 Mouser Part No 634-EFM852F16ITSOP20	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	198Expected 01/01/2027	£0.882 £0.636 £0.572 £0.503 View £0.471 £0.45 £0.437 £0.416 £0.406	Min.: 1 Mult.: 1		16 kB	1.28 kB	TSSOP-20			16 I/O	1.8 V	5.5 V	SMD/SMT		- 40 C	+ 85 C			Cut Tape
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 32 kB flash 2.304 kB RAM 16 GPIO BB5 8-bit MCU EFM8BB52F32G-C-TSSOP20 Silicon Labs 1: £1.05 197Expected 18/12/2026	Mfr. Part No. EFM8BB52F32G-C-TSSOP20 Mouser Part No 634-EFM852F32GCTOP20	Silicon Labs	8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 32 kB flash 2.304 kB RAM 16 GPIO BB5 8-bit MCU Learn More about Silicon Labs silabs efm8bb51 efm8bb52 busy bee mcus	Datasheet	197Expected 18/12/2026	£1.05 £0.826 £0.731 £0.633 View £0.632 £0.607 £0.58 £0.563 £0.55	Min.: 1 Mult.: 1		16 kB	1.28 kB	TSSOP-20			16 I/O	1.8 V	5.5 V	SMD/SMT		- 40 C	+ 85 C			Cut Tape
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 32 kB flash 2.304 kB RAM 25 GPIO BB5 8-bit MCU EFM8BB52F32I-C-TSSOP28 Silicon Labs 1: £1.06 200Expected 04/12/2026	Mfr. Part No. EFM8BB52F32I-C-TSSOP28 Mouser Part No 634-EFM852F32ICTOP28	Silicon Labs	8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 32 kB flash 2.304 kB RAM 25 GPIO BB5 8-bit MCU Learn More about Silicon Labs silabs efm8bb51 efm8bb52 busy bee mcus	Datasheet	200Expected 04/12/2026	£1.06 £0.826 £0.732 £0.658 View £0.636 £0.596 £0.582 £0.574 £0.567	Min.: 1 Mult.: 1		16 kB	1.28 kB	TSSOP-28			16 I/O	1.8 V	5.5 V	SMD/SMT		- 40 C	+ 85 C			Cut Tape
8-bit Microcontrollers - MCU 8051 50 MHz 128 kB 5 V CAN LIN 8-bit MCU C8051F580-IM Silicon Labs 1: £12.06 10Expected 04/12/2026 End of Life	Mfr. Part No. C8051F580-IM Mouser Part No 634-C8051F580-IM End of Life	Silicon Labs	8-bit Microcontrollers - MCU 8051 50 MHz 128 kB 5 V CAN LIN 8-bit MCU Learn More about Silicon Labs silicon c8051f58x automotive industrial mcus	Datasheet	10Expected 04/12/2026	£12.06 £10.62 £9.36 £8.28	Min.: 1 Mult.: 1	8051	128 kB	8.25 kB	QFN-48	24 MHz	12 bit	40 I/O	1.8 V	5.25 V	SMD/SMT	8 bit	- 40 C	+ 125 C	C8051F580	AEC-Q100	Tube
8-bit Microcontrollers - MCU 8051 25 MHz 8 kB flash 0.5 kB RAM 8-bit Busy Bee MCU EFM8BB10F8I-A-SOIC16R Silicon Labs 2,500: £0.512 Non-Stocked Lead-Time 12 Weeks	Mfr. Part No. EFM8BB10F8I-A-SOIC16R Mouser Part No 634-8BB10F8IASOIC16R	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	Non-Stocked Lead-Time 12 Weeks	Reel £0.512 £0.499	Min.: 2,500 Mult.: 2,500 : 2,500	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	+ 125 C	EFM8BB1		Reel
8-bit Microcontrollers - MCU 8051 25 MHz 4 kB flash 0.5 kB RAM 8-bit Sleepy Bee MCU EFM8SB10F4G-A-QFN20R Silicon Labs 2,500: £0.592 Non-Stocked Lead-Time 12 Weeks	Mfr. Part No. EFM8SB10F4G-A-QFN20R Mouser Part No 634-8SB10F4GAQF20R	Silicon Labs	8-bit Microcontrollers - MCU 8051 25 MHz 4 kB flash 0.5 kB RAM 8-bit Sleepy Bee MCU	Datasheet	Non-Stocked Lead-Time 12 Weeks	Reel £0.592 £0.578	Min.: 2,500 Mult.: 2,500 : 2,500	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			Reel
8-bit Microcontrollers - MCU Next gen available (F381-GM) 48 MIPS,64KB,10ADC,USB,32Pin C8051F342-GMR Silicon Labs 2,500: £12.07 Non-Stocked Lead-Time 12 Weeks	Mfr. Part No. C8051F342-GMR Mouser Part No 634-C8051F342-GMR	Silicon Labs	8-bit Microcontrollers - MCU Next gen available (F381-GM) 48 MIPS,64KB,10ADC,USB,32Pin Learn More about Silicon Labs silicon c8051f34x full speed flash mcus	Datasheet	Non-Stocked Lead-Time 12 Weeks	Reel £12.07	Min.: 2,500 Mult.: 2,500 : 2,500	8051							2.7 V	5.25 V		8 bit			C8051F342		Reel
8-bit Microcontrollers - MCU Next gen available (F381-GM) 25 MIPS,64KB,10ADC,USB,32Pin C8051F346-GMR Silicon Labs 2,500: £11.45 Non-Stocked Lead-Time 12 Weeks	Mfr. Part No. C8051F346-GMR Mouser Part No 634-C8051F346-GMR	Silicon Labs	8-bit Microcontrollers - MCU Next gen available (F381-GM) 25 MIPS,64KB,10ADC,USB,32Pin Learn More about Silicon Labs silicon c8051f34x full speed flash mcus	Datasheet	Non-Stocked Lead-Time 12 Weeks	Reel £11.45	Min.: 2,500 Mult.: 2,500 : 2,500														C8051F346		Reel
8-bit Microcontrollers - MCU Next gen available (F381-GM) 48 MIPS,64KB,10ADC,2xUART, USB,32Pin C8051F34A-GMR Silicon Labs 2,500: £12.33 Non-Stocked Lead-Time 12 Weeks	Mfr. Part No. C8051F34A-GMR Mouser Part No 634-C8051F34A-GMR	Silicon Labs	8-bit Microcontrollers - MCU Next gen available (F381-GM) 48 MIPS,64KB,10ADC,2xUART, USB,32Pin Learn More about Silicon Labs silicon c8051f34x full speed flash mcus	Datasheet	Non-Stocked Lead-Time 12 Weeks	Reel £12.33	Min.: 2,500 Mult.: 2,500 : 2,500	8051							2.7 V	5.25 V		8 bit			C8051F34A		Reel
8-bit Microcontrollers - MCU 8051 50 MHz 8 kB 8-bit MCU C8051F353-GMR Silicon Labs 2,500: £5.27 Non-Stocked Lead-Time 12 Weeks	Mfr. Part No. C8051F353-GMR Mouser Part No 634-C8051F353-GMR	Silicon Labs	8-bit Microcontrollers - MCU 8051 50 MHz 8 kB 8-bit MCU	Datasheet	Non-Stocked Lead-Time 12 Weeks	Reel £5.27	Min.: 2,500 Mult.: 2,500 : 2,500	8051	8 kB	768 B	QFN-28	50 MHz	16 bit	17 I/O	2.7 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 85 C	C8051F353		Reel
8-bit Microcontrollers - MCU 16kB/1kB RAM, QFN24 C8051F391-A-GMR Silicon Labs 2,500: £1.68 Non-Stocked Lead-Time 12 Weeks	Mfr. Part No. C8051F391-A-GMR Mouser Part No 634-C8051F391-A-GMR	Silicon Labs	8-bit Microcontrollers - MCU 16kB/1kB RAM, QFN24	Datasheet	Non-Stocked Lead-Time 12 Weeks	Reel £1.68	Min.: 2,500 Mult.: 2,500 : 2,500														C8051F391		Reel