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8051 Core 8 bit Embedded Processors & Controllers

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Core = 8051 Data Bus Width = 8 bit

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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	Number of I/Os	Data Bus Width	ADC Resolution
8-bit Microcontrollers - MCU MCU 8-BIT AT80 CISC ROMless 3-5V AT80C51RD2-3CSUM Microchip Technology 1: 4,34 € 257In Stock	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	257In Stock	4,34 € 3,98 € 3,95 €	Min.: 1 Mult.: 1	Through Hole	PDIP-40	8051	32 I/O	8 bit	No ADC
8-bit Microcontrollers - MCU 24MHZ, PLCC, IND TEMP, GREEN, 5V AT89C55WD-24JU Microchip Technology 1: 4,01 € 268In Stock 702Expected 11/9/2026	Mfr. Part No. AT89C55WD-24JU Mouser Part No 556-AT89C55WD-24JU	Microchip Technology	8-bit Microcontrollers - MCU 24MHZ, PLCC, IND TEMP, GREEN, 5V	Datasheet	268In Stock 702Expected 11/9/2026	4,01 € 3,69 €	Min.: 1 Mult.: 1	SMD/SMT	PLCC-44	8051	32 I/O	8 bit	No ADC
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	SMD/SMT	TQFP-44	8051	36 I/O	8 bit	No ADC
8-bit Microcontrollers - MCU 64KB 20MHz 2.4V-5.5V AT89LP51ED2-20PU Microchip Technology 1: 5,07 € 139In 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	139In Stock	5,07 € 4,64 € 4,21 €	Min.: 1 Mult.: 1	Through Hole	PDIP-40	8051	40 I/O	8 bit	10 bit
8-bit Microcontrollers - MCU 64KB 20MHz 2.4V-5.5V AT89LP51RD2-20PU Microchip Technology 1: 4,59 € 209In Stock	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	209In Stock	4,59 € 4,23 € 3,82 €	Min.: 1 Mult.: 1	Through Hole	PDIP-40	8051	40 I/O	8 bit	10 bit
8-bit Microcontrollers - MCU Single-Cycle 8051 8K ISP Flash MCU AT89LP52-20JU Microchip Technology 1: 2,97 € 130In 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	130In Stock	2,97 € 2,72 €	Min.: 1 Mult.: 1	SMD/SMT	PLCC-44	8051	36 I/O	8 bit	No ADC
8-bit Microcontrollers - MCU 8kB/512B RAM, ADC, QFN20 C8051F850-C-GMR Silicon Labs 1: 2,54 € 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 2,54 € 1,89 € 1,73 € 1,55 € Reel 1,32 € View 1,46 € 1,43 € 1,36 € 1,29 € MouseReel Available	Min.: 1 Mult.: 1 : 2.500	SMD/SMT	QFN-20	8051	16 I/O	8 bit	12 bit
8-bit Microcontrollers - MCU 32K Flash 50MHz 8051 1.71V to 5.5V CY8C3245LTI-139 Infineon Technologies 1: 8,29 € 186In Stock	Mfr. Part No. CY8C3245LTI-139 Mouser Part No 727-CY8C3245LTI-139	Infineon Technologies	8-bit Microcontrollers - MCU 32K Flash 50MHz 8051 1.71V to 5.5V Learn More about Infineon Technologies cypresspsoc3	Datasheet	186In Stock	8,29 € 6,45 € 5,71 € 5,48 € View 5,23 € 5,08 € 4,88 € Quote	Min.: 1 Mult.: 1	SMD/SMT	QFN-48	8051	29 I/O	8 bit	12 bit
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	29 I/O	8 bit	12 bit
8-bit Microcontrollers - MCU 64K Flash 50MHz 8051 1.71V to 5.5V CY8C3446AXI-099 Infineon Technologies 1: 14,67 € 62In Stock 180Expected 11/9/2026	Mfr. Part No. CY8C3446AXI-099 Mouser Part No 727-CY8C3446AXI-099	Infineon Technologies	8-bit Microcontrollers - MCU 64K Flash 50MHz 8051 1.71V to 5.5V Learn More about Infineon Technologies cypresspsoc3	Datasheet	62In Stock 180Expected 11/9/2026	14,67 € 11,15 € 10,68 € 9,41 € View 8,95 € 8,65 € 8,38 € Quote	Min.: 1 Mult.: 1	SMD/SMT	TQFP-100	8051	72 I/O	8 bit	12 bit
8-bit Microcontrollers - MCU 8051 25 MHz 32 kB 8-bit MCU C8051F005-GQ Silicon Labs 1: 30,41 € 174In Stock 800Expected 1/22/2027 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	174In Stock 800Expected 1/22/2027	30,41 € 25,40 € 22,95 € 21,67 €	Min.: 1 Mult.: 1	SMD/SMT	TQFP-64	8051	32 I/O	8 bit	12 bit
8-bit Microcontrollers - MCU 8051 25 MHz 32 kB 8-bit MCU C8051F005-GQR Silicon Labs 1: 29,68 € 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 29,68 € 24,03 € 22,62 € 21,68 € 20,32 € Reel 20,32 €	Min.: 1 Mult.: 1 : 500	SMD/SMT	TQFP-64	8051	32 I/O	8 bit	12 bit
8-bit Microcontrollers - MCU 8051 25 MHz 64 kB 8-bit MCU C8051F021-GQR Silicon Labs 1: 37,22 € 278In 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	278In Stock	Cut Tape 37,22 € 30,55 € 28,50 € 28,05 € 27,98 € Reel 24,99 € MouseReel Available	Min.: 1 Mult.: 1 : 500	SMD/SMT	TQFP-64	8051	32 I/O	8 bit	8 bit, 12 bit
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	40 I/O	8 bit	12 bit
8-bit Microcontrollers - MCU 8051 25 MHz 8 kB 5 V LIN 8-bit MCU C8051F530-C-IM Silicon Labs 1: 4,97 € 777In 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	777In 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	16 I/O	8 bit	12 bit
Microprocessors - MPU 128k Soft Microprocessor Chip DS5001FP-16N+ Analog Devices / Maxim Integrated 1: 40,72 € 11In Stock	Mfr. Part No. DS5001FP-16N+ Mouser Part No 700-DS5001FP-16N	Analog Devices / Maxim Integrated	Microprocessors - MPU 128k Soft Microprocessor Chip	Datasheet	11In Stock	40,72 € 39,82 € 39,70 €	Min.: 1 Mult.: 1	SMD/SMT	MQFP-80	8051	32 I/O	8 bit
8-bit Microcontrollers - MCU High-Speed/Low-Power Microcontrollers DS80C320-MCG+ Analog Devices / Maxim Integrated 1: 28,79 € 128In Stock	Mfr. Part No. DS80C320-MCG+ Mouser Part No 700-DS80C320-MCG	Analog Devices / Maxim Integrated	8-bit Microcontrollers - MCU High-Speed/Low-Power Microcontrollers Learn More about Analog Devices / Maxim Integrated maxim hvac solutions	Datasheet	128In Stock	28,79 € 22,51 € 21,50 € 19,54 € View 18,87 € 18,44 € Quote	Min.: 1 Mult.: 1	Through Hole	PDIP-40	8051	32 I/O	8 bit	No ADC
8-bit Microcontrollers - MCU High-Speed/Low-Power Microcontrollers DS80C320-MNG+ Analog Devices / Maxim Integrated 1: 34,86 € 128In Stock	Mfr. Part No. DS80C320-MNG+ Mouser Part No 700-DS80C320-MNG	Analog Devices / Maxim Integrated	8-bit Microcontrollers - MCU High-Speed/Low-Power Microcontrollers Learn More about Analog Devices / Maxim Integrated maxim hvac solutions	Datasheet	128In Stock	34,86 € 29,34 € 28,03 € 23,86 € View 23,19 € 22,90 € Quote	Min.: 1 Mult.: 1	Through Hole	PDIP-40	8051	32 I/O	8 bit	No ADC
8-bit Microcontrollers - MCU High-Speed/Low-Power Microcontrollers DS80C320-MNL+ Analog Devices / Maxim Integrated 1: 39,65 € 8In Stock	Mfr. Part No. DS80C320-MNL+ Mouser Part No 700-DS80C320-MNL	Analog Devices / Maxim Integrated	8-bit Microcontrollers - MCU High-Speed/Low-Power Microcontrollers Learn More about Analog Devices / Maxim Integrated maxim hvac solutions	Datasheet	8In Stock	39,65 € 32,55 € 29,88 € 28,08 € View 27,37 € Quote	Min.: 1 Mult.: 1	Through Hole	PDIP-40	8051	32 I/O	8 bit	No ADC
8-bit Microcontrollers - MCU High-Speed/Low-Power Microcontrollers DS80C323-ECD+ Analog Devices / Maxim Integrated 1: 14,91 € 208In Stock	Mfr. Part No. DS80C323-ECD+ Mouser Part No 700-DS80C323-ECD	Analog Devices / Maxim Integrated	8-bit Microcontrollers - MCU High-Speed/Low-Power Microcontrollers Learn More about Analog Devices / Maxim Integrated maxim hvac solutions	Datasheet	208In Stock	14,91 € 11,33 € 10,86 € 9,57 € View 8,63 € 8,36 € 8,11 € Quote	Min.: 1 Mult.: 1	SMD/SMT	TQFP-44	8051	32 I/O	8 bit	No ADC
8-bit Microcontrollers - MCU High-Speed/Low-Power Microcontrollers DS80C323-QCD+ Analog Devices / Maxim Integrated 1: 14,56 € 56In Stock	Mfr. Part No. DS80C323-QCD+ Mouser Part No 700-DS80C323-QCD	Analog Devices / Maxim Integrated	8-bit Microcontrollers - MCU High-Speed/Low-Power Microcontrollers Learn More about Analog Devices / Maxim Integrated maxim hvac solutions	Datasheet	56In Stock	14,56 € 11,07 € 10,60 € 9,34 € View 8,57 € 8,25 € 7,95 € Quote	Min.: 1 Mult.: 1	SMD/SMT	PLCC-44	8051	32 I/O	8 bit	No ADC
8-bit Microcontrollers - MCU Dual CAN High-Speed Microprocessor DS80C390-FNR+ Analog Devices / Maxim Integrated 1: 51,39 € 214In Stock	Mfr. Part No. DS80C390-FNR+ Mouser Part No 700-DS80C390-FNR	Analog Devices / Maxim Integrated	8-bit Microcontrollers - MCU Dual CAN High-Speed Microprocessor	Datasheet	214In Stock	51,39 € 42,76 € 42,38 € 39,70 € View 36,82 € Quote	Min.: 1 Mult.: 1	SMD/SMT	LQFP-64	8051	32 I/O	8 bit	No ADC
8-bit Microcontrollers - MCU EPROM/ROM High-Speed Microcontrollers DS87C520-QCL+ Analog Devices / Maxim Integrated 1: 61,13 € 192In Stock	Mfr. Part No. DS87C520-QCL+ Mouser Part No 700-DS87C520-QCL	Analog Devices / Maxim Integrated	8-bit Microcontrollers - MCU EPROM/ROM High-Speed Microcontrollers Learn More about Analog Devices / Maxim Integrated maxim hvac solutions	Datasheet	192In Stock	61,13 € 50,87 € 50,41 € 47,22 € View 46,16 € Quote	Min.: 1 Mult.: 1	SMD/SMT	PLCC-44	8051	32 I/O	8 bit	No ADC
8-bit Microcontrollers - MCU Ultra-High-Speed Flash Microcontrollers DS89C450-ENL+ Analog Devices / Maxim Integrated 1: 42,76 € 85In Stock	Mfr. Part No. DS89C450-ENL+ Mouser Part No 700-DS89C450-ENL	Analog Devices / Maxim Integrated	8-bit Microcontrollers - MCU Ultra-High-Speed Flash Microcontrollers	Datasheet	85In Stock	42,76 € 35,11 € 33,98 € 31,84 € View 31,17 € Quote	Min.: 1 Mult.: 1	SMD/SMT	TQFP-44	8051	32 I/O	8 bit	No ADC
8-bit Microcontrollers - MCU 8051 50 MHz 16 kB LFO 8-bit MCU C8051F392-A-GM Silicon Labs 1: 3,73 € 395In Stock 1.911Expected 11/2/2026 NRND	Mfr. Part No. C8051F392-A-GM Mouser Part No 634-C8051F392-A-GM NRND	Silicon Labs	8-bit Microcontrollers - MCU 8051 50 MHz 16 kB LFO 8-bit MCU Learn More about Silicon Labs siliconlabs c8051f37x	Datasheet	395In Stock 1.911Expected 11/2/2026	3,73 € 2,81 € 2,58 € 2,33 € View 2,21 € 2,19 € 2,06 € 2,01 €	Min.: 1 Mult.: 1	SMD/SMT	QFN-20	8051	17 I/O	8 bit	10 bit