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50 MHz 8-bit 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.	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 FS70AB037A - Repl for Intel 80C188EB IA188EBPLC84IR2 Analog Devices 1: 143,78 € 17In Stock	Mfr. Part No. IA188EBPLC84IR2 Mouser Part No 584-IA188EBPLC84IR2	Analog Devices	8-bit Microcontrollers - MCU FS70AB037A - Repl for Intel 80C188EB	Datasheet	17In Stock	143,78 € 121,90 € 121,87 € 113,57 € View Quote	Min.: 1 Mult.: 1	80C188	0 B	0 B	PLCC-84	50 MHz	No ADC	16 I/O	4.5 V	5.5 V	SMD/SMT	8 bit/16 bit	- 40 C	+ 85 C	IA186EB, IA188EB		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: 1,38 € 43In 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	43In Stock 2 520Expected 08/01/2027	1,38 € 1,18 € 1,03 € 0,963 € 0,853 €	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 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU EFM8BB21F16G-C-QFN20R Silicon Labs 1: 1,42 € 34In Stock 58 500Expected 08/01/2027	Mfr. Part No. EFM8BB21F16G-C-QFN20R Mouser Part No 634-8BB21F16GCQFN20R	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	34In Stock 58 500Expected 08/01/2027	Cut Tape 1,42 € 1,20 € 1,06 € 0,98 € 0,869 € Reel 0,806 € MouseReel Available	Min.: 1 Mult.: 1 : 1 500	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		Reel, Cut Tape, MouseReel
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 312In 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 312In Stock	1,81 € 1,52 € 1,30 € 1,23 € View 1,20 € 1,07 € 0,851 € 0,832 €	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	+ 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: 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	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: 2,66 € 117In Stock 49 500On Order	Mfr. Part No. EFM8UB10F16G-C-QFN20R Mouser Part No 634-8UB10F16GCQFN20R	Silicon Labs	8-bit Microcontrollers - MCU 8051 25 MHz 16 kB flash 2 kB RAM 8-bit Universal Bee MCU	Datasheet	117In Stock 49 500On Order On Order Ship Dates Mfr. No: EFM8UB10F16G-C-QFN20R Stock: 117 Can Dispatch Immediately On Order: 9 000 Expected 07/01/2027 40 500 Expected 08/01/2027 Factory Lead Time: 31 Weeks	Cut Tape 2,66 € 1,94 € 1,75 € 1,57 € View Reel 1,30 € 1,55 € 1,38 € 1,30 € 1,30 € MouseReel Available	Min.: 1 Mult.: 1 : 1 500	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
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 € 110In Stock	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	110In Stock	Cut Tape 2,33 € 1,96 € 1,72 € 1,63 € View Reel 1,17 € 1,62 € 1,44 € 1,38 € 1,17 €	Min.: 1 Mult.: 1 : 1 500	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		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 € 166In 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	166In 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 : 1 500	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		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	CIP-51 8051	16 kB	2.3 kB	QFN-32	50 MHz	10 bit, 12 bit	29 I/O	2.2 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 85 C			Tray
8-bit Microcontrollers - MCU 8051 50 MHz 64 kB flash 4.25 kB RAM 8-bit Busy Bee MCU EFM8BB31F64G-D-QFN32 Silicon Labs 1: 2,30 € 88In Stock 9 800On Order	Mfr. Part No. EFM8BB31F64G-D-QFN32 Mouser Part No 634-EF8BB31F64GDQN32	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	88In Stock 9 800On Order On Order Ship Dates Mfr. No: EFM8BB31F64G-D-QFN32 Stock: 88 Can Dispatch Immediately On Order: 4 900 Expected 06/10/2026 4 900 Expected 30/10/2026 Factory Lead Time: 16 Weeks	2,30 € 1,70 € 1,56 € 1,39 € View 1,32 € 1,27 € 1,22 € 1,20 € 1,16 €	Min.: 1 Mult.: 1	CIP-51 8051	64 kB	4.35 kB	QFN-32	50 MHz	10 bit, 12 bit	29 I/O	2.2 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 85 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: 2,70 € 463In Stock 2 520Expected 30/09/2026	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	463In Stock 2 520Expected 30/09/2026	2,70 € 2,01 € 1,84 € 1,65 € View 1,56 € 1,52 € 1,44 € 1,40 € 1,38 €	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 50 MHz 32 kB 5 V CAN LIN 8-bit MCU C8051F506-IM Silicon Labs 1: 9,32 € 6In Stock	Mfr. Part No. C8051F506-IM Mouser Part No 634-C8051F506-IM	Silicon Labs	8-bit Microcontrollers - MCU 8051 50 MHz 32 kB 5 V CAN LIN 8-bit MCU	Datasheet	6In Stock	9,32 € 7,28 € 6,77 € 6,21 € View 5,90 € Quote	Min.: 1 Mult.: 1	8051	32 kB	4.25 kB	QFN-32	50 MHz	12 bit	25 I/O	1.8 V	5.25 V	SMD/SMT	8 bit	- 40 C	+ 125 C	C8051F506	AEC-Q100	Tube
8-bit Microcontrollers - MCU 64K Flash 50MHz 8051 1.71V to 5.5V CY8C3246LTI-149 Infineon Technologies 1: 12,35 € 8In Stock	Mfr. Part No. CY8C3246LTI-149 Mouser Part No 727-CY8C3246LTI-149	Infineon Technologies	8-bit Microcontrollers - MCU 64K Flash 50MHz 8051 1.71V to 5.5V Learn More about Infineon Technologies cypresspsoc3	Datasheet	8In Stock	12,35 € 9,59 € 8,65 € 8,15 € View 7,77 € 7,54 € 7,19 € Quote	Min.: 1 Mult.: 1	8051	64 kB	8 kB	QFN-68	50 MHz	12 bit	46 I/O	1.71 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 85 C	CY8C3246		Tray
8-bit Microcontrollers - MCU PSoC 32KB FLASH 1.7-5.5V 38 I/O CY8C3246LTI-149T Infineon Technologies 1: 12,50 € 23In Stock	Mfr. Part No. CY8C3246LTI-149T Mouser Part No 727-CY8C3246LTI-149T	Infineon Technologies	8-bit Microcontrollers - MCU PSoC 32KB FLASH 1.7-5.5V 38 I/O Learn More about Infineon Technologies cypress psoc	Datasheet	23In Stock	Cut Tape 12,50 € 9,49 € 9,10 € 8,02 € View Reel 7,18 € 7,63 € 7,37 € 7,19 € 7,18 € Quote	Min.: 1 Mult.: 1 : 2 000	8051	64 kB	8 kB	QFN-68	50 MHz	12 bit	46 I/O	1.71 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 85 C	CY8C3246		Reel, Cut Tape
8-bit Microcontrollers - MCU 64K Flash 50MHz 8051 1.71V to 5.5V CY8C3446LTI-085 Infineon Technologies 1: 13,89 € 6In Stock	Mfr. Part No. CY8C3446LTI-085 Mouser Part No 727-CY8C3446LTI-085	Infineon Technologies	8-bit Microcontrollers - MCU 64K Flash 50MHz 8051 1.71V to 5.5V Learn More about Infineon Technologies cypresspsoc3	Datasheet	6In Stock	13,89 € 10,87 € 9,79 € 9,25 € View 8,83 € 8,57 € 8,43 € Quote	Min.: 1 Mult.: 1	8051	64 kB	8 kB	QFN-68	50 MHz	12 bit	48 I/O	1.71 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 85 C	CY8C3446		Tray
8-bit Microcontrollers - MCU 8051 50 MHz 64 kB 5 V 8-bit MCU C8051F503-IM Silicon Labs 1: 9,47 € 44In Stock End of Life	Mfr. Part No. C8051F503-IM Mouser Part No 634-C8051F503-IM End of Life	Silicon Labs	8-bit Microcontrollers - MCU 8051 50 MHz 64 kB 5 V 8-bit MCU	Datasheet	44In Stock	9,47 € 7,39 € 6,87 € 6,30 € View 5,99 € 5,87 € 5,56 €	Min.: 1 Mult.: 1	8051	64 kB	4.25 kB	QFN-32	50 MHz	12 bit	25 I/O	1.8 V	5.25 V	SMD/SMT	8 bit	- 40 C	+ 125 C	C8051F503	AEC-Q100	Tube
8-bit Microcontrollers - MCU 8051 50 MHz 128 kB 5 V 8-bit MCU C8051F581-IM Silicon Labs 1: 13,54 € 106In Stock End of Life	Mfr. Part No. C8051F581-IM Mouser Part No 634-C8051F581-IM End of Life	Silicon Labs	8-bit Microcontrollers - MCU 8051 50 MHz 128 kB 5 V 8-bit MCU Learn More about Silicon Labs silicon c8051f58x automotive industrial mcus	Datasheet	106In Stock	13,54 € 10,60 € 9,87 € 9,06 € View 8,98 € 8,85 € 8,75 € Quote	Min.: 1 Mult.: 1	8051	128 kB	8.25 kB	QFN-48	50 MHz	12 bit	40 I/O	1.8 V	5.25 V	SMD/SMT	8 bit	- 40 C	+ 125 C	C8051F581	AEC-Q100	Tube
8-bit Microcontrollers - MCU 8051 50 MHz 64 kB flash 4.25 kB RAM 8-bit Busy Bee MCU EFM8BB31F64I-D-QFP32 Silicon Labs 1: 2,87 € 11In Stock End of Life	Mfr. Part No. EFM8BB31F64I-D-QFP32 Mouser Part No 634-EF8BB31F64IDQP32 End of Life	Silicon Labs	8-bit Microcontrollers - MCU 8051 50 MHz 64 kB flash 4.25 kB RAM 8-bit Busy Bee MCU	Datasheet	11In Stock	2,87 € 2,14 € 1,96 € 1,75 € 1,73 €	Min.: 1 Mult.: 1	CIP-51 8051	64 kB	4.35 kB	QFP-32	50 MHz	10 bit, 12 bit	28 I/O	2.2 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 125 C			Tray
8-bit Microcontrollers - MCU 8051 50 MHz 32 kB flash 2.25 kB RAM 8-bit Busy Bee MCU EFM8BB31F32I-D-4QFN24 Silicon Labs 1: 1,96 € 475In Stock	Mfr. Part No. EFM8BB31F32I-D-4QFN24 Mouser Part No 634-EF8BB31F32ID4F24	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	475In Stock	1,96 € 1,45 € 1,32 € 1,19 € View 1,12 € 1,09 € 1,07 € 1,05 €	Min.: 1 Mult.: 1	CIP-51 8051	32 kB	2.3 kB	QFN-24	50 MHz	10 bit, 12 bit	20 I/O	2.2 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 125 C			Tube
8-bit Microcontrollers - MCU eZ80AcclaimPlus! Connectivity ASSP Rev AC EZ80F91AZA50EK ZiLOG 1: 15,54 € 15In Stock 1 980On Order	Mfr. Part No. EZ80F91AZA50EK Mouser Part No 692-EZ80F91AZA50EK	ZiLOG	8-bit Microcontrollers - MCU eZ80AcclaimPlus! Connectivity ASSP Rev AC	Datasheet	15In Stock 1 980On Order On Order Ship Dates Mfr. No: EZ80F91AZA50EK Stock: 15 Can Dispatch Immediately On Order: 1 020 Expected 31/12/2026 960 TBD Factory Lead Time: 32 Weeks	15,54 € 12,08 € 11,13 € 9,38 €	Min.: 1 Mult.: 1	eZ80	256 kB	8 kB		50 MHz	No ADC	32 I/O	3 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 105 C	EZ80F91
8-bit Microcontrollers - MCU eZ80AcclaimPlus! Connectivity ASSP Rev AB ZiLOG EZ80F91AZ050EK EZ80F91AZ050EK ZiLOG 1: 16,23 € 2In Stock 780On Order	Mfr. Part No. EZ80F91AZ050EK Mouser Part No 692-EZ80F91AZ050EK	ZiLOG	8-bit Microcontrollers - MCU eZ80AcclaimPlus! Connectivity ASSP Rev AB	Datasheet	2In Stock 780On Order	16,23 € 12,61 € 11,47 € 9,64 €	Min.: 1 Mult.: 1	eZ80	256 kB	8 kB		50 MHz	No ADC	32 I/O	3 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 105 C
8-bit Microcontrollers - MCU 8051 50 MHz 8 kB 8-bit MCU C8051F353-GM Silicon Labs 1: 9,97 € 1 014Expected 02/10/2026	Mfr. Part No. C8051F353-GM Mouser Part No 634-C8051F353-GM	Silicon Labs	8-bit Microcontrollers - MCU 8051 50 MHz 8 kB 8-bit MCU	Datasheet	1 014Expected 02/10/2026	9,97 € 8,00 € 7,20 € 6,87 € View 6,15 € 6,06 € 6,01 € 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 16kB/1kB RAM, 10b ADC, 10b 2xDAC, QFN24 C8051F390-A-GMR Silicon Labs 1: 3,53 € 1 497Expected 02/10/2026	Mfr. Part No. C8051F390-A-GMR Mouser Part No 634-C8051F390-A-GMR	Silicon Labs	8-bit Microcontrollers - MCU 16kB/1kB RAM, 10b ADC, 10b 2xDAC, QFN24	Datasheet	1 497Expected 02/10/2026	Cut Tape 3,53 € 2,67 € 2,45 € 2,21 € View Reel 2,00 € 2,10 € 2,08 € 2,04 € 2,00 € MouseReel Available	Min.: 1 Mult.: 1 : 1 500	8051	16 kB	1 kB	QFN-24	50 MHz	10 bit	21 I/O	1.8 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 105 C	C8051F390		Reel, Cut Tape, MouseReel
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: 1,84 € 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	1,84 € 1,51 € 1,43 € 1,21 € View 1,17 € 1,07 € 0,989 € 0,972 € 0,946 €	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 8051 50 MHz 64 kB flash 4.25 kB RAM 8-bit Busy Bee MCU EFM8BB31F64I-D-QFN32R Silicon Labs 1: 2,49 € 2 500On Order	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 500On Order	Cut Tape 2,49 € 1,87 € 1,70 € 1,53 € View Reel 1,37 € 1,44 € 1,41 € 1,38 € 1,37 €	Min.: 1 Mult.: 1 : 2 500	CIP-51 8051	64 kB	4.35 kB	QFN-32	50 MHz	10 bit, 12 bit	29 I/O	2.2 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 125 C			Reel, Cut Tape