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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 (GBP) 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 24MHZ, PLCC, IND TEMP, GREEN, 5V AT89C55WD-24JU Microchip Technology 1: £3.50 268In Stock 702Expected 09/11/2026	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 09/11/2026	£3.50 £3.22	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: £1.29 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	£1.29 £1.17 £1.07	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: £4.43 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	£4.43 £4.05 £3.68	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: £4.01 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	£4.01 £3.69 £3.33	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: £2.59 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	£2.59 £2.37	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: £2.22 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 £2.22 £1.65 £1.51 £1.35 Reel £1.15 View £1.27 £1.25 £1.19 £1.13 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: £7.24 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	£7.24 £5.63 £4.98 £4.78 View £4.57 £4.43 £4.26 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: £9.26 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	£9.26 £8.28 £6.40 £6.32 View £6.08 £5.64 £5.50 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: £12.81 242In Stock	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	242In Stock	£12.81 £9.73 £9.32 £8.21 View £7.81 £7.55 £7.32 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: £26.55 174In Stock 800Expected 22/01/2027 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	174In Stock 800Expected 22/01/2027	£26.55 £22.17 £20.04 £18.92	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: £25.91 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 £25.91 £20.98 £19.75 £18.93 £17.74 Reel £17.74	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: £32.49 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 £32.49 £26.67 £24.88 £24.49 £24.43 Reel £21.82 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: £9.86 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	£9.86 £8.60 £7.19 £6.61 View £6.57 £6.36 £6.27 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: £4.34 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	£4.34 £3.30 £3.05 £2.76 View £2.63 £2.59 £2.55	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: £35.55 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	£35.55 £34.76 £34.66	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: £25.13 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	£25.13 £19.65 £18.77 £17.06 View £16.47 £16.10 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: £30.43 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	£30.43 £25.61 £24.47 £20.83 View £20.24 £19.99 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: £34.61 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	£34.61 £28.42 £26.09 £24.51 View £23.89 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: £13.02 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	£13.02 £9.89 £9.48 £8.35 View £7.53 £7.30 £7.08 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: £12.71 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	£12.71 £9.66 £9.25 £8.15 View £7.48 £7.20 £6.94 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: £44.86 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	£44.86 £37.33 £37.00 £34.66 View £32.14 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: £53.37 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	£53.37 £44.41 £44.01 £41.22 View £40.30 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: £37.33 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	£37.33 £30.65 £29.66 £27.80 View £27.21 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: £3.26 395In Stock 1,911Expected 02/11/2026 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 02/11/2026	£3.26 £2.45 £2.25 £2.03 View £1.93 £1.91 £1.80 £1.75	Min.: 1 Mult.: 1	SMD/SMT	QFN-20	8051	17 I/O	8 bit	10 bit
8-bit Microcontrollers - MCU 16KB Flash ROM, 1KB SRAM, 1 CHs of SPI,1T/8051 ML51BB9AE Nuvoton 1: £0.646 775In Stock	Mfr. Part No. ML51BB9AE Mouser Part No 503-ML51BB9AE	Nuvoton	8-bit Microcontrollers - MCU 16KB Flash ROM, 1KB SRAM, 1 CHs of SPI,1T/8051 Learn More about Nuvoton ml51 numicro mcus	Datasheet	775In Stock	£0.646 £0.555 £0.47 £0.443 View £0.402 £0.392 £0.378 £0.373	Min.: 1 Mult.: 1	SMD/SMT	MSOP-10	8051	7 I/O	8 bit	12 bit