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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	Packaging
8-bit Microcontrollers - MCU 16K Flash 50MHz 8051 1.71V to 5.5V CY8C3244AXI-153 Infineon Technologies 1: 9,70 € 33In Stock	Mfr. Part No. CY8C3244AXI-153 Mouser Part No 727-CY8C3244AXI-153	Infineon Technologies	8-bit Microcontrollers - MCU 16K Flash 50MHz 8051 1.71V to 5.5V Learn More about Infineon Technologies cypresspsoc3	Datasheet	33In Stock	9,70 € 7,55 € 6,85 € 5,51 € View 5,49 € 5,14 € 5,01 € Quote	Min.: 1 Mult.: 1	8051	16 kB	2 kB	TQFP-100	50 MHz	12 bit	70 I/O	1.71 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 85 C	CY8C3244	Tray
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	CIP-51 8051	32 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 64K Flash 50MHz 8051 1.71V to 5.5V CY8C3246LTI-125 Infineon Technologies 1: 10,41 € 1.091In Stock	Mfr. Part No. CY8C3246LTI-125 Mouser Part No 727-CY8C3246LTI-125	Infineon Technologies	8-bit Microcontrollers - MCU 64K Flash 50MHz 8051 1.71V to 5.5V Learn More about Infineon Technologies cypresspsoc3	Datasheet	1.091In Stock	10,41 € 8,15 € 7,25 € 6,97 € View 6,67 € 6,48 € 6,25 € Quote	Min.: 1 Mult.: 1	8051	64 kB	8 kB	QFN-48	50 MHz	12 bit	31 I/O	1.71 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 85 C	CY8C3246	Tray
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 25 GPIO BB5 8-bit MCU EFM8BB52F16I-C-TSSOP28R Silicon Labs 1: 1,02 € 2.435In Stock	Mfr. Part No. EFM8BB52F16I-C-TSSOP28R Mouser Part No 634-EFM852F16ITOP28R	Silicon Labs	8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 25 GPIO BB5 8-bit MCU Learn More about Silicon Labs silabs efm8bb51 efm8bb52 busy bee mcus	Datasheet	2.435In Stock	Cut Tape 1,02 € 0,747 € 0,676 € 0,597 € Reel 0,499 € View 0,56 € 0,537 € 0,513 € 0,487 €	Min.: 1 Mult.: 1 : 2.500		16 kB	1.28 kB	TSSOP-28			16 I/O	1.8 V	5.5 V	SMD/SMT		- 40 C	+ 85 C		Reel, Cut Tape
8-bit Microcontrollers - MCU Low Pin Count 8051 Series; 2.4V to 5.5V; -40 to 85 N76E003AQ20 Nuvoton 1: 1,28 € 1.016In Stock	Mfr. Part No. N76E003AQ20 Mouser Part No 503-N76E003AQ20	Nuvoton	8-bit Microcontrollers - MCU Low Pin Count 8051 Series; 2.4V to 5.5V; -40 to 85	Datasheet	1.016In Stock	Cut Tape 1,28 € 0,816 € 0,728 € 0,599 € Reel 0,396 € View 0,523 € 0,495 € 0,426 € 0,392 € MouseReel Available	Min.: 1 Mult.: 1 : 3.000	8051	18 kB	256 B	QFN-20	16 MHz	12 bit	18 I/O	2.4 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 105 C		Reel, Cut Tape, MouseReel
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 8 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU EFM8BB51F8I-C-TSSOP20 Silicon Labs 1: 0,98 € 166In Stock	Mfr. Part No. EFM8BB51F8I-C-TSSOP20 Mouser Part No 634-EFM851F8ICTSOP20	Silicon Labs	8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 8 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU Learn More about Silicon Labs silabs efm8bb51 efm8bb52 busy bee mcus	Datasheet	166In Stock	0,98 € 0,709 € 0,638 € 0,562 € View 0,525 € 0,502 € 0,487 € 0,465 € 0,453 €	Min.: 1 Mult.: 1		8 kB	1.28 kB	TSSOP-20			16 I/O	1.8 V	5.5 V	SMD/SMT		- 40 C	+ 125 C		Cut Tape
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 € 1,12 € 1,07 € 1,04 €	Min.: 1 Mult.: 1	CIP-51 8051	16 kB	1.25 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	Tube
8-bit Microcontrollers - MCU 64K Flash 50MHz 8051 1.71V to 5.5V CY8C3246PVI-147 Infineon Technologies 1: 10,30 € 371In Stock	Mfr. Part No. CY8C3246PVI-147 Mouser Part No 727-CY8C3246PVI-147	Infineon Technologies	8-bit Microcontrollers - MCU 64K Flash 50MHz 8051 1.71V to 5.5V Learn More about Infineon Technologies cypresspsoc3	Datasheet	371In Stock	10,30 € 9,72 € 7,10 € 6,83 € View 6,64 € 6,37 € 6,22 € Quote	Min.: 1 Mult.: 1	8051	64 kB	8 kB	SSOP-48	50 MHz	12 bit	31 I/O	1.71 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 85 C	CY8C3246	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 € 1,30 € 1,15 €	Min.: 1 Mult.: 1	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	Tube
8-bit Microcontrollers - MCU 8051 48 MHz 32 kB flash 2 kB RAM 8-bit Universal Bee MCU EFM8UB20F32G-B-QFN32 Silicon Labs 1: 2,80 € 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	2,80 € 2,21 € 1,97 € 1,81 € View 1,71 € 1,68 € 1,65 € 1,57 € 1,56 €	Min.: 1 Mult.: 1	CIP-51 8051	32 kB	2.25 kB	QFN-32	48 MHz	10 bit	25 I/O	3.3 V	3.3 V	SMD/SMT	8 bit	- 40 C	+ 85 C	EFM8UB2	Tube
8-bit Microcontrollers - MCU Sngl-Cycle 8051 IND 2.4-3.6V 32K ISP FL AT89LP3240-20MU Microchip Technology 1: 4,09 € 315In Stock	Mfr. Part No. AT89LP3240-20MU Mouser Part No 556-AT89LP3240-20MU	Microchip Technology	8-bit Microcontrollers - MCU Sngl-Cycle 8051 IND 2.4-3.6V 32K ISP FL	Datasheet	315In Stock	4,09 € 3,76 € 3,41 €	Min.: 1 Mult.: 1	8051	32 kB	4.25 kB	VQFN-44	20 MHz	10 bit	38 I/O	2.4 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 85 C		Tray
8-bit Microcontrollers - MCU 32K FLASH 4.0 TO 5.5V AT89C51RC-24AU Microchip Technology 1: 2,71 € 3.742In Stock	Mfr. Part No. AT89C51RC-24AU Mouser Part No 556-A89C51RC-24AU	Microchip Technology	8-bit Microcontrollers - MCU 32K FLASH 4.0 TO 5.5V Learn More about Microchip Technology microchip at89c51 mcus	Datasheet	3.742In Stock	2,71 € 2,50 €	Min.: 1 Mult.: 1	8051	32 kB	512 B	TQFP-44	24 MHz	No ADC	32 I/O	4 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 85 C	89C	Tray
8-bit Microcontrollers - MCU Single-Cycle 8051 8K ISP Flash MCU AT89LP52-20AU Microchip Technology 1: 1,48 € 2.754In Stock	Mfr. Part No. AT89LP52-20AU Mouser Part No 556-AT89LP52-20AU	Microchip Technology	8-bit Microcontrollers - MCU Single-Cycle 8051 8K ISP Flash MCU Learn More about Microchip Technology atmelat89lp52	Datasheet	2.754In Stock	1,48 € 1,34 € 1,23 €	Min.: 1 Mult.: 1	8051	8 kB	256 B	TQFP-44	20 MHz	No ADC	36 I/O	2.4 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 85 C		Tray
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 € 54.906In Stock 10.500On 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	54.906In Stock 10.500On Order On Order Ship Dates Mfr. No: EFM8BB10F8G-A-QFN20R Stock: 54.906 Can Dispatch Immediately On Order: 1.500 Pending 9.000 Expected 11/13/2026 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	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	+ 85 C	EFM8BB1	Reel, Cut Tape, MouseReel
8-bit Microcontrollers - MCU 8051 4K FLASH 2.7 TO 5.5V 24MHZ 4V-5.5V AT89C4051-24PU Microchip Technology 1: 1,82 € 2.246In Stock	Mfr. Part No. AT89C4051-24PU Mouser Part No 556-A89C4051-24PU	Microchip Technology	8-bit Microcontrollers - MCU 8051 4K FLASH 2.7 TO 5.5V 24MHZ 4V-5.5V	Datasheet	2.246In Stock	1,82 € 1,67 € 1,51 €	Min.: 1 Mult.: 1	8051	4 kB	128 B	PDIP-20	24 MHz	No ADC	15 I/O	4 V	6 V	Through Hole	8 bit	- 40 C	+ 85 C	89C	Tube
8-bit Microcontrollers - MCU Single-Cycle 8051 8K ISP Flash MCU AT89LP52-20JU Microchip Technology 1: 2,97 € 103In Stock	Mfr. Part No. AT89LP52-20JU Mouser Part No 556-AT89LP52-20JU	Microchip Technology	8-bit Microcontrollers - MCU Single-Cycle 8051 8K ISP Flash MCU Learn More about Microchip Technology atmelat89lp52	Datasheet	103In Stock	2,97 € 2,72 €	Min.: 1 Mult.: 1	8051	8 kB	256 B	PLCC-44	20 MHz	No ADC	36 I/O	2.4 V	5.5 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-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	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		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-QFN20 Silicon Labs 1: 1,14 € 7.303In Stock	Mfr. Part No. EFM8SB10F2G-A-QFN20 Mouser Part No 634-8SB10F2GAQF20	Silicon Labs	8-bit Microcontrollers - MCU 8051 25 MHz 2 kB flash 0.25 kB RAM 8-bit Sleepy Bee MCU Learn More about Silicon Labs silabs efm8 sleepy bee	Datasheet	7.303In Stock	1,14 € 0,886 € 0,789 € 0,702 € View 0,679 € 0,643 € 0,629 € 0,607 € 0,578 €	Min.: 1 Mult.: 1	CIP-51 8051	2 kB	256 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 64K Flash 50MHz 8051 1.71V to 5.5V CY8C3446LTI-073 Infineon Technologies 1: 12,48 € 2.600In Stock	Mfr. Part No. CY8C3446LTI-073 Mouser Part No 727-CY8C3446LTI-073	Infineon Technologies	8-bit Microcontrollers - MCU 64K Flash 50MHz 8051 1.71V to 5.5V Learn More about Infineon Technologies cypresspsoc3	Datasheet	2.600In Stock	12,48 € 10,17 € 9,09 € 8,75 € View 8,38 € 8,16 € 8,07 € Quote	Min.: 1 Mult.: 1	8051	64 kB	8 kB	QFN-48	50 MHz	12 bit	31 I/O	1.71 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 85 C	CY8C3446	Tray
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 12/4/2026	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 12/4/2026	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	CIP-51 8051	2 kB	256 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 5 Volt 8051 50 Mhz 4 kB flash 0.5 kB RAM 12 GPIO BB5 8-bit MCU EFM8BB50F4I-A-SOIC16 Silicon Labs 1: 0,877 € 648In Stock	Mfr. Part No. EFM8BB50F4I-A-SOIC16 Mouser Part No 634-M8BB50F4IASOIC16	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	648In Stock	0,877 € 0,632 € 0,569 € 0,501 € View 0,468 € 0,448 € 0,433 € 0,415 € 0,404 €	Min.: 1 Mult.: 1		4 kB	512 B	SOIC-16	50 MHz	12 bit	12 I/O	1.8 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 125 C	BB50	Tube
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 8 kB flash 0.5 kB RAM 12 GPIO BB5 8-bit MCU EFM8BB50F8G-A-SOIC16 Silicon Labs 1: 0,903 € 995In Stock	Mfr. Part No. EFM8BB50F8G-A-SOIC16 Mouser Part No 634-M8BB50F8GASOIC16	Silicon Labs	8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 8 kB flash 0.5 kB RAM 12 GPIO BB5 8-bit MCU Learn More about Silicon Labs efm8bb50 mcus	Datasheet	995In Stock	0,903 € 0,703 € 0,624 € 0,559 € View 0,523 € 0,501 € 0,485 € 0,463 € 0,451 €	Min.: 1 Mult.: 1		8 kB	512 B	SOIC-16	50 MHz	12 bit	12 I/O	1.8 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 85 C		Tube
8-bit Microcontrollers - MCU Single Cycle 8051 4K ISP FL AT89LP51-20AU Microchip Technology 1: 1,48 € 610In Stock	Mfr. Part No. AT89LP51-20AU Mouser Part No 556-AT89LP51-20AU	Microchip Technology	8-bit Microcontrollers - MCU Single Cycle 8051 4K ISP FL Learn More about Microchip Technology atmelat89lp52	Datasheet	610In Stock	1,48 € 1,34 € 1,23 €	Min.: 1 Mult.: 1	8051	4 kB	256 B	TQFP-44	20 MHz	No ADC	36 I/O	2.4 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 85 C		Tray
8-bit Microcontrollers - MCU 64K Flash 67MHz 8051 0.5V to 5.5V CY8C3866AXI-040 Infineon Technologies 1: 23,14 € 297In Stock	Mfr. Part No. CY8C3866AXI-040 Mouser Part No 727-CY8C3866AXI-040	Infineon Technologies	8-bit Microcontrollers - MCU 64K Flash 67MHz 8051 0.5V to 5.5V Learn More about Infineon Technologies cypresspsoc3	Datasheet	297In Stock	23,14 € 18,58 € 16,30 € 15,82 € View 15,67 € 15,20 € Quote	Min.: 1 Mult.: 1	8051	64 kB	8 kB	TQFP-100	67 MHz	20 bit	72 I/O	1.71 V	1.89 V	SMD/SMT	8 bit	- 40 C	+ 85 C	CY8C3866	Tray
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 32 kB flash 2.304 kB RAM 29 GPIO BB5 8-bit MCU EFM8BB52F32G-C-QFN32R Silicon Labs 1: 0,955 € 4.000In Stock	Mfr. Part No. EFM8BB52F32G-C-QFN32R Mouser Part No 634-EFM852F32GQFN32R	Silicon Labs	8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 32 kB flash 2.304 kB RAM 29 GPIO BB5 8-bit MCU Learn More about Silicon Labs silabs efm8bb51 efm8bb52 busy bee mcus	Datasheet	4.000In Stock	Cut Tape 0,955 € 0,69 € 0,621 € 0,546 € Reel 0,452 € View 0,511 € 0,488 € 0,473 € 0,441 €	Min.: 1 Mult.: 1 : 2.500		16 kB	1.28 kB	QFN-32			16 I/O	1.8 V	5.5 V	SMD/SMT		- 40 C	+ 85 C		Reel, Cut Tape