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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 SINGLE CYCLE 2K FLASH-20MHZ 2.4-5.5V AT89LP2052-20XU Microchip Technology 1: 2,38 € 8In Stock	Mfr. Part No. AT89LP2052-20XU Mouser Part No 556-A89LP2052-20XU	Microchip Technology	8-bit Microcontrollers - MCU SINGLE CYCLE 2K FLASH-20MHZ 2.4-5.5V	Datasheet	8In Stock	2,38 € 2,19 € 2,18 €	Min.: 1 Mult.: 1	SMD/SMT	TSSOP-20	8051	8 bit	20 MHz	2 kB	256 B		15 I/O	2.4 V	5.5 V	+ 85 C		Tube
8-bit Microcontrollers - MCU SINGLE CYCLE 4K FLASH-20MHZ 2.4-5.5V AT89LP4052-20PU Microchip Technology 1: 2,31 € 121In Stock 1 134Expected 02/10/2026	Mfr. Part No. AT89LP4052-20PU Mouser Part No 556-A89LP4052-20PU	Microchip Technology	8-bit Microcontrollers - MCU SINGLE CYCLE 4K FLASH-20MHZ 2.4-5.5V	Datasheet	121In Stock 1 134Expected 02/10/2026	2,31 € 2,12 €	Min.: 1 Mult.: 1	Through Hole	PDIP-20	8051	8 bit	20 MHz	4 kB	256 B	No ADC	15 I/O	2.4 V	5.5 V	+ 85 C		Tube
8-bit Microcontrollers - MCU 2K FLASH 24MHZ SOIC AT89S2051-24SU Microchip Technology 1: 2,24 € 504In Stock	Mfr. Part No. AT89S2051-24SU Mouser Part No 556-A89S2051-24SU	Microchip Technology	8-bit Microcontrollers - MCU 2K FLASH 24MHZ SOIC	Datasheet	504In Stock	2,24 € 2,06 € 1,87 €	Min.: 1 Mult.: 1	SMD/SMT	SOIC-20	8051	8 bit	24 MHz	2 kB	256 B	No ADC	15 I/O	2.7 V	5.5 V	+ 85 C		Tube
8-bit Microcontrollers - MCU 12kB Flash 256B RAM 2.7V-5.5V AT89S8253-24AU Microchip Technology 1: 2,32 € 31In Stock 4 960On Order	Mfr. Part No. AT89S8253-24AU Mouser Part No 556-A89S8253-24AU	Microchip Technology	8-bit Microcontrollers - MCU 12kB Flash 256B RAM 2.7V-5.5V	Datasheet	31In Stock 4 960On Order On Order Ship Dates Mfr. No: AT89S8253-24AU Stock: 31 Can Dispatch Immediately On Order: 2 560 Expected 01/10/2026 2 400 Expected 02/10/2026 Factory Lead Time: 11 Weeks	2,32 € 2,14 € 1,93 €	Min.: 1 Mult.: 1	SMD/SMT	TQFP-44	8051	8 bit	24 MHz	12 kB	256 B	No ADC	32 I/O	2.7 V	5.5 V	+ 85 C		Tray
8-bit Microcontrollers - MCU MCU 8-BIT AT80 CISC ROMless 3-5V AT80C51RD2-3CSUM Microchip Technology 1: 4,34 € 190In Stock 270Expected 05/10/2026	Mfr. Part No. AT80C51RD2-3CSUM Mouser Part No 556-AT80C51RD2-3CSUM	Microchip Technology	8-bit Microcontrollers - MCU MCU 8-BIT AT80 CISC ROMless 3-5V	Datasheet	190In Stock 270Expected 05/10/2026	4,34 € 3,98 € 3,95 €	Min.: 1 Mult.: 1	Through Hole	PDIP-40	8051	8 bit	40 MHz	0 B	1.25 kB	No ADC	32 I/O	2.7 V	5.5 V	+ 85 C		Tube
8-bit Microcontrollers - MCU Single Cycle 8051 4K ISP FL AT89LP51-20AU Microchip Technology 1: 1,48 € 130In Stock 480Expected 23/10/2026	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	130In Stock 480Expected 23/10/2026	1,48 € 1,34 € 1,23 €	Min.: 1 Mult.: 1	SMD/SMT	TQFP-44	8051	8 bit	20 MHz	4 kB	256 B	No ADC	36 I/O	2.4 V	5.5 V	+ 85 C		Tray
8-bit Microcontrollers - MCU 64KB 20MHz 2.4V-5.5V AT89LP51ED2-20PU Microchip Technology 1: 5,07 € 140In Stock	Mfr. Part No. AT89LP51ED2-20PU Mouser Part No 556-AT89LP51ED2-20PU	Microchip Technology	8-bit Microcontrollers - MCU 64KB 20MHz 2.4V-5.5V Learn More about Microchip Technology atmelat89lp52	Datasheet	140In Stock	5,07 € 4,64 € 4,21 €	Min.: 1 Mult.: 1	Through Hole	PDIP-40	8051	8 bit	20 MHz	64 kB	256 B	10 bit	40 I/O	2.4 V	5.5 V	+ 85 C		Tube
8-bit Microcontrollers - MCU 64KB 20MHz 2.4V-5.5V AT89LP51RD2-20PU Microchip Technology 1: 4,59 € 59In Stock 150Expected 23/10/2026	Mfr. Part No. AT89LP51RD2-20PU Mouser Part No 556-AT89LP51RD2-20PU	Microchip Technology	8-bit Microcontrollers - MCU 64KB 20MHz 2.4V-5.5V Learn More about Microchip Technology atmelat89lp52	Datasheet	59In Stock 150Expected 23/10/2026	4,59 € 4,23 € 3,82 €	Min.: 1 Mult.: 1	Through Hole	PDIP-40	8051	8 bit	20 MHz	64 kB	256 B	10 bit	40 I/O	2.4 V	5.5 V	+ 85 C		Tube
8-bit Microcontrollers - MCU 8051 50 MHz 64 kB 8-bit MCU C8051F340-GQ Silicon Labs 1: 20,17 € 9In Stock 2 500Expected 06/10/2026	Mfr. Part No. C8051F340-GQ Mouser Part No 634-C8051F340-GQ	Silicon Labs	8-bit Microcontrollers - MCU 8051 50 MHz 64 kB 8-bit MCU	Datasheet	9In Stock 2 500Expected 06/10/2026	20,17 € 16,33 € 15,15 € 14,27 € View 13,69 € 13,41 € Quote	Min.: 1 Mult.: 1	SMD/SMT	TQFP-48	8051	8 bit	48 MHz	64 kB	4.25 kB	10 bit	40 I/O	2.7 V	5.25 V	+ 85 C		Tray
8-bit Microcontrollers - MCU 8KB,24ADC,28Pin MCU C8051F351-GMR Silicon Labs 1: 13,44 € 97In Stock	Mfr. Part No. C8051F351-GMR Mouser Part No 634-C8051F351-GMR	Silicon Labs	8-bit Microcontrollers - MCU 8KB,24ADC,28Pin MCU	Datasheet	97In Stock	Cut Tape 13,44 € 10,72 € 9,73 € 9,10 € View Reel 7,96 € 9,06 € 8,50 € 8,20 € 7,96 € Quote	Min.: 1 Mult.: 1 : 1 500	SMD/SMT	QFN-28	8051	8 bit	50 MHz	8 kB	768 B	24 bit	17 I/O	2.7 V	3.6 V	+ 85 C		Reel, Cut Tape
8-bit Microcontrollers - MCU USB-Flash-64k-ADC-QFN32 OTP available (T626-GM) C8051F381-GMR Silicon Labs 1: 6,19 € 60In Stock	Mfr. Part No. C8051F381-GMR Mouser Part No 634-C8051F381-GMR	Silicon Labs	8-bit Microcontrollers - MCU USB-Flash-64k-ADC-QFN32 OTP available (T626-GM)	Datasheet	60In Stock	Cut Tape 6,19 € 4,88 € 4,39 € 4,08 € Reel 3,59 € View 3,97 € 3,78 € 3,62 € 3,54 €	Min.: 1 Mult.: 1 : 1 500	SMD/SMT	QFN-32	8051	8 bit	48 MHz	64 kB	4.25 kB	10 bit	25 I/O	2.7 V	5.25 V	+ 85 C		Reel, Cut Tape
8-bit Microcontrollers - MCU 8051 50 MHz 32 kB 8-bit MCU C8051F387-GM Silicon Labs 1: 5,01 € 308In Stock	Mfr. Part No. C8051F387-GM Mouser Part No 634-C8051F387-GM	Silicon Labs	8-bit Microcontrollers - MCU 8051 50 MHz 32 kB 8-bit MCU Learn More about Silicon Labs silabs usb mcus	Datasheet	308In Stock	5,01 € 4,16 € 3,57 € 3,41 € View 3,08 € 2,92 € 2,90 € 2,88 € Quote	Min.: 1 Mult.: 1	SMD/SMT	QFN-32	8051	8 bit	48 MHz	32 kB	2.3 kB		25 I/O	2.7 V	5.25 V	+ 85 C		Tube
8-bit Microcontrollers - MCU 16kB/1kB RAM, 10b ADC, 10b 2xDAC, QFN20 C8051F392-A-GMR Silicon Labs 1: 3,48 € 72In Stock	Mfr. Part No. C8051F392-A-GMR Mouser Part No 634-C8051F392-A-GMR	Silicon Labs	8-bit Microcontrollers - MCU 16kB/1kB RAM, 10b ADC, 10b 2xDAC, QFN20	Datasheet	72In Stock	Cut Tape 3,48 € 3,07 € 2,61 € 2,22 € Reel 1,92 € View 2,15 € 2,05 € 1,95 € 1,91 € MouseReel Available	Min.: 1 Mult.: 1 : 1 500	SMD/SMT	QFN-20	8051	8 bit	50 MHz	16 kB	1 kB	10 bit	17 I/O	1.8 V	3.6 V	+ 105 C		Reel, Cut Tape, MouseReel
8-bit Microcontrollers - MCU 8051 50 MHz 32 kB 5 V CAN LIN 8-bit MCU C8051F550-IM Silicon Labs 1: 7,74 € 222In Stock 1 911Expected 02/10/2026	Mfr. Part No. C8051F550-IM Mouser Part No 634-C8051F550-IM	Silicon Labs	8-bit Microcontrollers - MCU 8051 50 MHz 32 kB 5 V CAN LIN 8-bit MCU	Datasheet	222In Stock 1 911Expected 02/10/2026	7,74 € 6,19 € 5,51 € 5,15 € View 5,02 € 4,69 € 4,62 € 4,49 € Quote	Min.: 1 Mult.: 1	SMD/SMT	QFN-24	8051	8 bit	50 MHz	32 kB	2.25 kB	12 bit	18 I/O	1.8 V	5.25 V	+ 125 C	AEC-Q100	Tube
8-bit Microcontrollers - MCU 8kB/512B RAM, ADC, QFN20 C8051F850-C-GMR Silicon Labs 1: 2,43 € 309In Stock	Mfr. Part No. C8051F850-C-GMR Mouser Part No 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 2,43 € 1,90 € 1,53 € 1,45 € Reel 1,22 € View 1,41 € 1,25 € 1,20 € MouseReel Available	Min.: 1 Mult.: 1 : 1 500	SMD/SMT	QFN-20	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 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	SMD/SMT	TQFP-100	8051	8 bit	50 MHz	16 kB	2 kB	12 bit	70 I/O	1.71 V	5.5 V	+ 85 C		Tray
8-bit Microcontrollers - MCU 32K Flash 50MHz 8051 1.71V to 5.5V CY8C3445PVI-094 Infineon Technologies 1: 10,61 € 134In Stock	Mfr. Part No. CY8C3445PVI-094 Mouser Part No 727-CY8C3445PVI-094	Infineon Technologies	8-bit Microcontrollers - MCU 32K Flash 50MHz 8051 1.71V to 5.5V Learn More about Infineon Technologies cypresspsoc3	Datasheet	134In Stock	10,61 € 9,48 € 7,33 € 7,24 € View 6,96 € 6,46 € 6,30 € Quote	Min.: 1 Mult.: 1	SMD/SMT	SSOP-48	8051	8 bit	50 MHz	32 kB	4 kB	12 bit	29 I/O	1.71 V	5.5 V	+ 85 C		Tube
8-bit Microcontrollers - MCU PSoC 64KB FLASH 1.7-5.5V 62 I/O CY8C3446AXI-099T Infineon Technologies 1: 14,30 € 113In Stock	Mfr. Part No. CY8C3446AXI-099T Mouser Part No 727-CY8C3446AXI-099T	Infineon Technologies	8-bit Microcontrollers - MCU PSoC 64KB FLASH 1.7-5.5V 62 I/O Learn More about Infineon Technologies cypress psoc	Datasheet	113In Stock	Cut Tape 14,30 € 11,21 € 10,10 € 9,55 € View Reel 8,08 € 9,30 € 8,70 € 8,18 € 8,08 € Quote MouseReel Available	Min.: 1 Mult.: 1 : 1 500	SMD/SMT	TQFP-100	8051	8 bit	50 MHz	64 kB	8 kB	12 bit	72 I/O	1.71 V	5.5 V	+ 85 C		Reel, Cut Tape, MouseReel
8-bit Microcontrollers - MCU 8051 25 MHz 32 kB 8-bit MCU C8051F005-GQ Silicon Labs 1: 30,41 € 327In Stock 800Expected 08/01/2027 End of Life	Mfr. Part No. C8051F005-GQ Mouser Part No 634-C8051F005-GQ End of Life	Silicon Labs	8-bit Microcontrollers - MCU 8051 25 MHz 32 kB 8-bit MCU	Datasheet	327In Stock 800Expected 08/01/2027	30,41 € 25,40 € 22,95 € 21,67 € Quote Quote	Min.: 1 Mult.: 1	SMD/SMT	TQFP-64	8051	8 bit	25 MHz	32 kB	2.25 kB	12 bit	32 I/O	2.7 V	3.6 V	+ 85 C		Tray
8-bit Microcontrollers - MCU 8051 25 MHz 32 kB 8-bit MCU C8051F005-GQR Silicon Labs 1: 27,40 € 234In Stock End of Life	Mfr. Part No. C8051F005-GQR Mouser Part No 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 27,40 € 25,19 € 19,58 € Reel 19,57 €	Min.: 1 Mult.: 1 : 500	SMD/SMT	TQFP-64	8051	8 bit	25 MHz	32 kB	2.25 kB	12 bit	32 I/O	2.7 V	3.6 V	+ 85 C		Reel, Cut Tape
8-bit Microcontrollers - MCU 8051 25 MHz 64 kB 8-bit MCU C8051F021-GQR Silicon Labs 1: 36,13 € 379In Stock End of Life	Mfr. Part No. C8051F021-GQR Mouser Part No 634-C8051F021-GQR End of Life	Silicon Labs	8-bit Microcontrollers - MCU 8051 25 MHz 64 kB 8-bit MCU	Datasheet	379In Stock	Cut Tape 36,13 € 29,50 € 27,47 € 26,85 € 24,38 € Reel 24,37 € MouseReel Available	Min.: 1 Mult.: 1 : 500	SMD/SMT	TQFP-64	8051	8 bit	25 MHz	64 kB	4.35 kB	8 bit, 12 bit	32 I/O	2.7 V	3.6 V	+ 85 C		Reel, Cut Tape, MouseReel
8-bit Microcontrollers - MCU 100MIPS,128KB,12ADC,100Pin MCU C8051F120-GQR Silicon Labs 1: 43,80 € 211In Stock End of Life	Mfr. Part No. C8051F120-GQR Mouser Part No 634-C8051F120-GQR End of Life	Silicon Labs	8-bit Microcontrollers - MCU 100MIPS,128KB,12ADC,100Pin MCU	Datasheet	211In Stock	Cut Tape 43,80 € 36,36 € Reel 36,36 € View Quote	Min.: 1 Mult.: 1 : 250	SMD/SMT	TQFP-100	8051	8 bit	100 MHz	128 kB	8.25 kB	8 bit, 12 bit	64 I/O	3 V	3.6 V	+ 85 C		Reel, Cut Tape
8-bit Microcontrollers - MCU 50MIPS,128KB,12ADC,100Pin MCU C8051F124-GQ Silicon Labs 1: 38,42 € 50In Stock 1 350Expected 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	50In Stock 1 350Expected 04/12/2026	38,42 € 34,44 € 32,12 € 31,25 €	Min.: 1 Mult.: 1	SMD/SMT	TQFP-100	8051	8 bit	50 MHz	128 kB	8.25 kB	8 bit, 12 bit	64 I/O	2.7 V	3.6 V	+ 85 C		Tray
8-bit Microcontrollers - MCU 8051 50 MHz 64 kB 5 V CAN LIN 8-bit MCU C8051F500-IM Silicon Labs 1: 11,30 € 181In Stock End of Life	Mfr. Part No. C8051F500-IM Mouser Part No 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	11,30 € 9,85 € 8,24 € 7,57 € View 7,53 € 7,28 € 7,18 € Quote	Min.: 1 Mult.: 1	SMD/SMT	QFN-48	8051	8 bit	50 MHz	64 kB	4.25 kB	12 bit	40 I/O	1.8 V	5.25 V	+ 125 C	AEC-Q100	Tube
8-bit Microcontrollers - MCU 8051 25 MHz 8 kB 5 V LIN 8-bit MCU C8051F530-C-IM Silicon Labs 1: 4,97 € 793In Stock End of Life	Mfr. Part No. C8051F530-C-IM Mouser Part No 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	793In Stock	4,97 € 3,78 € 3,49 € 3,16 € View 3,01 € 2,97 € 2,92 €	Min.: 1 Mult.: 1	SMD/SMT	QFN-20	8051	8 bit	25 MHz	8 kB	256 B	12 bit	16 I/O	2 V	5.25 V	+ 125 C	AEC-Q100	Tube