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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 8051 50 MHz 64 kB 8-bit MCU C8051F381-GM Silicon Labs 1: 5,92 € 750In Stock	Mfr. Part No. C8051F381-GM Mouser Part No 634-C8051F381-GM	Silicon Labs	8-bit Microcontrollers - MCU 8051 50 MHz 64 kB 8-bit MCU Learn More about Silicon Labs silabs usb mcus	Datasheet	750In Stock	5,92 € 4,70 € 4,21 € 3,91 € View 3,81 € 3,63 € 3,60 € 3,54 €	Min.: 1 Mult.: 1	SMD/SMT	QFN-32	8051	25 I/O	8 bit	10 bit
8-bit Microcontrollers - MCU 8051 50 MHz 16 kB 8-bit MCU C8051F390-A-GM Silicon Labs 1: 3,55 € 1.322In Stock	Mfr. Part No. C8051F390-A-GM Mouser Part No 634-C8051F390-A-GM	Silicon Labs	8-bit Microcontrollers - MCU 8051 50 MHz 16 kB 8-bit MCU Learn More about Silicon Labs siliconlabs c8051f37x	Datasheet	1.322In Stock	3,55 € 2,93 € 2,49 € 2,37 € View 2,19 € 1,98 € 1,94 €	Min.: 1 Mult.: 1	SMD/SMT	QFN-24	8051	21 I/O	8 bit	10 bit
8-bit Microcontrollers - MCU 8051 50 MHz 16 kB LFO 8-bit MCU C8051F392-A-GM Silicon Labs 1: 3,40 € 1.210In Stock 1.911Expected 11/2/2026	Mfr. Part No. C8051F392-A-GM Mouser Part No 634-C8051F392-A-GM	Silicon Labs	8-bit Microcontrollers - MCU 8051 50 MHz 16 kB LFO 8-bit MCU Learn More about Silicon Labs siliconlabs c8051f37x	Datasheet	1.210In Stock 1.911Expected 11/2/2026	3,40 € 2,84 € 2,38 € 2,27 € View 2,21 € 2,12 € 2,00 € 1,92 €	Min.: 1 Mult.: 1	SMD/SMT	QFN-20	8051	17 I/O	8 bit	10 bit
8-bit Microcontrollers - MCU 8051 50 MHz 64 kB 5 V CAN LIN 8-bit MCU C8051F502-IM Silicon Labs 1: 10,07 € 548In Stock	Mfr. Part No. C8051F502-IM Mouser Part No 634-C8051F502-IM	Silicon Labs	8-bit Microcontrollers - MCU 8051 50 MHz 64 kB 5 V CAN LIN 8-bit MCU	Datasheet	548In Stock	10,07 € 8,08 € 7,28 € 6,81 € View 6,62 € 6,36 € 6,29 € Quote	Min.: 1 Mult.: 1	SMD/SMT	QFN-32	8051	25 I/O	8 bit	12 bit
8-bit Microcontrollers - MCU 50 MIPS, 64 kB, 4 kB, CAN2.0, LIN 2.1, SPI, UART, I2C, QFN32 C8051F502-IMR Silicon Labs 1: 9,92 € 296In Stock	Mfr. Part No. C8051F502-IMR Mouser Part No 634-C8051F502-IMR	Silicon Labs	8-bit Microcontrollers - MCU 50 MIPS, 64 kB, 4 kB, CAN2.0, LIN 2.1, SPI, UART, I2C, QFN32	Datasheet	296In Stock	Cut Tape 9,92 € 7,75 € 7,21 € 6,60 € 6,29 € Reel 6,21 €	Min.: 1 Mult.: 1 : 1.500			8051		8 bit
8-bit Microcontrollers - MCU 8051 50 MHz 32 kB 5 V 8-bit MCU C8051F553-IM Silicon Labs 1: 7,46 € Non-Stocked Lead-Time 12 Weeks	Mfr. Part No. C8051F553-IM Mouser Part No 634-C8051F553-IM	Silicon Labs	8-bit Microcontrollers - MCU 8051 50 MHz 32 kB 5 V 8-bit MCU	Datasheet	Non-Stocked Lead-Time 12 Weeks	7,46 € 6,18 € 5,25 € 5,03 € View 4,75 € 4,04 € 3,94 €	Min.: 1 Mult.: 1	SMD/SMT	QFN-24	8051	18 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 € 449In 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	449In 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 CY8C3245LTI-163 Infineon Technologies 1: 8,39 € 533In Stock	Mfr. Part No. CY8C3245LTI-163 Mouser Part No 727-CY8C3245LTI-163	Infineon Technologies	8-bit Microcontrollers - MCU 32K Flash 50MHz 8051 1.71V to 5.5V Learn More about Infineon Technologies cypresspsoc3	Datasheet	533In Stock	8,39 € 6,53 € 5,78 € 5,55 € View 5,29 € 4,95 € Quote	Min.: 1 Mult.: 1	SMD/SMT	QFN-68	8051	46 I/O	8 bit	12 bit
8-bit Microcontrollers - MCU 64K Flash 50MHz 8051 1.71V to 5.5V CY8C3246PVI-147 Infineon Technologies 1: 10,31 € 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	10,31 € 9,72 € 7,10 € 6,84 € View 6,43 € 6,24 € Quote	Min.: 1 Mult.: 1	SMD/SMT	SSOP-48	8051	31 I/O	8 bit	12 bit
8-bit Microcontrollers - MCU 32K Flash 4K SRAM 8bit 67 MHz CY8C3666LTI-203 Infineon Technologies 1: 14,47 € 510In Stock	Mfr. Part No. CY8C3666LTI-203 Mouser Part No 727-CY8C3666LTI-203	Infineon Technologies	8-bit Microcontrollers - MCU 32K Flash 4K SRAM 8bit 67 MHz Learn More about Infineon Technologies cypresspsoc3	Datasheet	510In Stock	14,47 € 11,46 € 10,25 € 9,87 € View 9,47 € 9,23 € 9,13 € Quote	Min.: 1 Mult.: 1	SMD/SMT	QFN-68	8051	46 I/O	8 bit	12 bit
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 € 15,13 € Quote	Min.: 1 Mult.: 1	SMD/SMT	TQFP-100	8051	72 I/O	8 bit	20 bit
8-bit Microcontrollers - MCU 8051 8bit 67MHz 64KB CY8C3866AXI-040T Infineon Technologies 1: 23,14 € 559In Stock	Mfr. Part No. CY8C3866AXI-040T Mouser Part No 727-CY8C3866AXI-040T	Infineon Technologies	8-bit Microcontrollers - MCU 8051 8bit 67MHz 64KB Learn More about Infineon Technologies cypress psoc	Datasheet	559In Stock	Cut Tape 23,14 € 18,58 € 16,78 € 16,16 € View Reel 14,70 € 15,85 € 15,46 € 14,83 € 14,70 € Quote MouseReel Available	Min.: 1 Mult.: 1 : 1.500	SMD/SMT	TQFP-100	8051	72 I/O	8 bit	20 bit
8-bit Microcontrollers - MCU 64K Flash 67MHz 8051 0.5V to 5.5V CY8C3866PVI-070 Infineon Technologies 1: 19,02 € 237In Stock	Mfr. Part No. CY8C3866PVI-070 Mouser Part No 727-CY8C3866PVI-070	Infineon Technologies	8-bit Microcontrollers - MCU 64K Flash 67MHz 8051 0.5V to 5.5V Learn More about Infineon Technologies cypresspsoc3	Datasheet	237In Stock	19,02 € 18,01 € 13,53 € 13,08 € View 13,07 € 12,38 € 11,54 € Quote	Min.: 1 Mult.: 1	SMD/SMT	SSOP-48	8051	29 I/O	8 bit	20 bit
8-bit Microcontrollers - MCU 100MIPS,128KB,12ADC,100Pin MCU C8051F120-GQ Silicon Labs 1: 44,01 € 1.137In Stock End of Life	Mfr. Part No. C8051F120-GQ Mouser Part No 634-C8051F120-GQ End of Life	Silicon Labs	8-bit Microcontrollers - MCU 100MIPS,128KB,12ADC,100Pin MCU	Datasheet	1.137In Stock	44,01 € 35,78 € 32,86 € 32,71 € Quote Quote	Min.: 1 Mult.: 1	SMD/SMT	TQFP-100	8051	64 I/O	8 bit	8 bit, 12 bit
8-bit Microcontrollers - MCU 8051 50 MHz 64 kB 5 V 8-bit MCU C8051F501-IM Silicon Labs 1: 10,94 € 600In Stock End of Life	Mfr. Part No. C8051F501-IM Mouser Part No 634-C8051F501-IM End of Life	Silicon Labs	8-bit Microcontrollers - MCU 8051 50 MHz 64 kB 5 V 8-bit MCU	Datasheet	600In Stock	10,94 € 8,79 € 8,05 € 7,45 € View 7,39 € 6,88 € 6,87 € Quote	Min.: 1 Mult.: 1	SMD/SMT	QFN-48	8051	40 I/O	8 bit	12 bit
8-bit Microcontrollers - MCU 8051 50 MHz 128 kB 5 V CAN LIN 8-bit MCU C8051F582-IM Silicon Labs 1: 13,75 € 3.094In Stock End of Life	Mfr. Part No. C8051F582-IM Mouser Part No 634-C8051F582-IM End of Life	Silicon Labs	8-bit Microcontrollers - MCU 8051 50 MHz 128 kB 5 V CAN LIN 8-bit MCU	Datasheet	3.094In Stock	13,75 € 11,41 € 9,94 € 9,66 € View 9,18 € 8,59 € 8,27 €	Min.: 1 Mult.: 1	SMD/SMT	QFN-32	8051	25 I/O	8 bit	12 bit
8-bit Microcontrollers - MCU EPROM/ROM High-Speed Microcontrollers DS87C520-MCL+ Analog Devices / Maxim Integrated 1: 71,92 € 643In Stock	Mfr. Part No. DS87C520-MCL+ Mouser Part No 700-DS87C520-MCL	Analog Devices / Maxim Integrated	8-bit Microcontrollers - MCU EPROM/ROM High-Speed Microcontrollers Learn More about Analog Devices / Maxim Integrated maxim hvac solutions	Datasheet	643In Stock	71,92 € 60,56 € 60,04 € 54,99 € View Quote	Min.: 1 Mult.: 1 Max.: 514	Through Hole	PDIP-40	8051	32 I/O	8 bit	No ADC
8-bit Microcontrollers - MCU EPROM/ROM High-Speed Microcontrollers DS87C520-QNL+ Analog Devices / Maxim Integrated 1: 73,19 € 334In Stock	Mfr. Part No. DS87C520-QNL+ Mouser Part No 700-DS87C520-QNL	Analog Devices / Maxim Integrated	8-bit Microcontrollers - MCU EPROM/ROM High-Speed Microcontrollers Learn More about Analog Devices / Maxim Integrated maxim hvac solutions	Datasheet	334In Stock	73,19 € 61,64 € 61,10 € 55,96 € Quote Quote	Min.: 1 Mult.: 1 Max.: 267	SMD/SMT	PLCC-44	8051	32 I/O	8 bit	No ADC
8-bit Microcontrollers - MCU Ultra-High-Speed Flash Microcontrollers DS89C430-ENL+ Analog Devices / Maxim Integrated 1: 35,45 € 193In Stock	Mfr. Part No. DS89C430-ENL+ Mouser Part No 700-DS89C430-ENL	Analog Devices / Maxim Integrated	8-bit Microcontrollers - MCU Ultra-High-Speed Flash Microcontrollers	Datasheet	193In Stock	35,45 € 29,85 € 28,51 € 25,49 €	Min.: 1 Mult.: 1 Max.: 154	SMD/SMT	TQFP-44	8051	32 I/O	8 bit	No ADC
8-bit Microcontrollers - MCU Ultra-High-Speed Flash Microcontrollers DS89C430-MNL+ Analog Devices / Maxim Integrated 1: 35,43 € 77In Stock	Mfr. Part No. DS89C430-MNL+ Mouser Part No 700-DS89C430-MNL	Analog Devices / Maxim Integrated	8-bit Microcontrollers - MCU Ultra-High-Speed Flash Microcontrollers	Datasheet	77In Stock	35,43 € 29,76 € 27,27 € 25,65 € View 24,73 € Quote	Min.: 1 Mult.: 1	Through Hole	PDIP-40	8051	32 I/O	8 bit	No ADC
8-bit Microcontrollers - MCU Automotive MCU with 2KB SRAM and 32Kx16 ECC E-Flash, QFN-24 (4mm x 4mm) IS32CS8974A-QWLCA3-TR Lumissil 1: 1,11 € 2.450In Stock New Product	Mfr. Part No. IS32CS8974A-QWLCA3-TR Mouser Part No 870-32CS8974AQWLA3TR New Product	Lumissil	8-bit Microcontrollers - MCU Automotive MCU with 2KB SRAM and 32Kx16 ECC E-Flash, QFN-24 (4mm x 4mm) Learn More about Lumissil is3xcs8974 mcus	Datasheet	2.450In Stock	Cut Tape 1,11 € 0,946 € 0,826 € 0,78 € Reel 0,615 € View 0,691 € 0,677 € 0,602 €	Min.: 1 Mult.: 1 : 2.500	SMD/SMT	WQFN-24	8051	20 I/O	8 bit
8-bit Microcontrollers - MCU 8051 25 MHz 2 kB 8-bit MCU C8051F860-C-GS Silicon Labs 1: 2,31 € 375In Stock NRND	Mfr. Part No. C8051F860-C-GS Mouser Part No 634-C8051F860-C-GS NRND	Silicon Labs	8-bit Microcontrollers - MCU 8051 25 MHz 2 kB 8-bit MCU Learn More about Silicon Labs silabs c8051f85 c8051f86 mcus	Datasheet	375In Stock	2,31 € 2,02 € 1,65 € 1,56 € View 1,44 € 1,40 € 1,37 € 1,36 €	Min.: 1 Mult.: 1	SMD/SMT	SOIC-16	8051	13 I/O	8 bit	12 bit
8-bit Microcontrollers - MCU 2kB Flash 128B RAM 24MHz 2.7V-6.0V AT89C2051-24PU Microchip Technology 1: 1,79 € 1.260In Stock	Mfr. Part No. AT89C2051-24PU Mouser Part No 556-A89C2051-24PU	Microchip Technology	8-bit Microcontrollers - MCU 2kB Flash 128B RAM 24MHz 2.7V-6.0V	Datasheet	1.260In Stock	1,79 € 1,64 € 1,48 €	Min.: 1 Mult.: 1	Through Hole	PDIP-20	8051	15 I/O	8 bit	No ADC
8-bit Microcontrollers - MCU 20 PINS 2K FLASH 12MHZ 2.7 - 5.5V AT89C2051-12PU Microchip Technology 1: 1,79 € 951In Stock	Mfr. Part No. AT89C2051-12PU Mouser Part No 556-A89C205112PU	Microchip Technology	8-bit Microcontrollers - MCU 20 PINS 2K FLASH 12MHZ 2.7 - 5.5V	Datasheet	951In Stock	1,79 € 1,64 € 1,48 €	Min.: 1 Mult.: 1	Through Hole	PDIP-20	8051	15 I/O	8 bit	No ADC
8-bit Microcontrollers - MCU C5130A 32K Flash AT89C5131A-RDTUM Microchip Technology 1: 6,68 € 779In Stock	Mfr. Part No. AT89C5131A-RDTUM Mouser Part No 556-A89C5131ARDTUM	Microchip Technology	8-bit Microcontrollers - MCU C5130A 32K Flash	Datasheet	779In Stock	6,68 € 6,13 € 5,54 €	Min.: 1 Mult.: 1	SMD/SMT	VQFP-64	8051	34 I/O	8 bit	No ADC