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8051 Core Microcontrollers - MCU

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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	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 64K Flash 50MHz 8051 1.71V to 5.5V CY8C3446LTI-085 Infineon Technologies 1: £12.13 6In Stock	Mfr. Part No. CY8C3446LTI-085 Mouser Part No 727-CY8C3446LTI-085	Infineon Technologies	8-bit Microcontrollers - MCU 64K Flash 50MHz 8051 1.71V to 5.5V Learn More about Infineon Technologies cypresspsoc3	Datasheet	6In Stock	£12.13 £9.49 £8.55 £8.08 View £7.71 £7.48 £7.36 Quote	Min.: 1 Mult.: 1	SMD/SMT	QFN-68	8051	8 bit	50 MHz	64 kB	8 kB	12 bit	48 I/O	1.71 V	5.5 V	+ 85 C		Tray
8-bit Microcontrollers - MCU 8051 25 MHz 64 kB 8-bit MCU C8051F021-GQ Silicon Labs 1: £32.85 5In Stock End of Life	Mfr. Part No. C8051F021-GQ Mouser Part No 634-C8051F021-GQ End of Life	Silicon Labs	8-bit Microcontrollers - MCU 8051 25 MHz 64 kB 8-bit MCU	Datasheet	5In Stock	£32.85 £27.13 £25.33 £24.49 View £23.33 Quote	Min.: 1 Mult.: 1	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		Tray
8-bit Microcontrollers - MCU 64KB,10ADC,100Pin MCU C8051F022-GQ Silicon Labs 1: £27.65 6In Stock End of Life	Mfr. Part No. C8051F022-GQ Mouser Part No 634-C8051F022-GQ End of Life	Silicon Labs	8-bit Microcontrollers - MCU 64KB,10ADC,100Pin MCU	Datasheet	6In Stock	£27.65 £22.39 £21.07 £20.20 £18.94	Min.: 1 Mult.: 1	SMD/SMT	TQFP-100	8051	8 bit	25 MHz	64 kB	4.35 kB	8 bit, 10 bit	64 I/O	2.7 V	3.6 V	+ 85 C		Tray
8-bit Microcontrollers - MCU 100MIPS,128KB,12ADC,100Pin MCU C8051F120-GQ Silicon Labs 1: £41.48 Lead-Time 28 Weeks 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	Lead-Time 28 Weeks	£41.48 £33.90 £32.00 £31.11 £28.92	Min.: 1 Mult.: 1	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		Tray
8-bit Microcontrollers - MCU 100MIPS,128KB,12ADC,100Pin MCU C8051F120-GQR Silicon Labs 1: £41.48 5In Stock 250On Order 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	5In Stock 250On Order	Cut Tape £41.48 £33.90 £32.00 £31.11 Reel £28.92	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 8051 50 MHz 64 kB 5 V 8-bit MCU C8051F503-IM Silicon Labs 1: £8.27 44In Stock End of Life	Mfr. Part No. C8051F503-IM Mouser Part No 634-C8051F503-IM End of Life	Silicon Labs	8-bit Microcontrollers - MCU 8051 50 MHz 64 kB 5 V 8-bit MCU	Datasheet	44In Stock	£8.27 £6.45 £6.00 £5.50 View £5.23 £5.12 £4.85	Min.: 1 Mult.: 1	SMD/SMT	QFN-32	8051	8 bit	50 MHz	64 kB	4.25 kB	12 bit	25 I/O	1.8 V	5.25 V	+ 125 C	AEC-Q100	Tube
8-bit Microcontrollers - MCU 8051 50 MHz 32 kB 5 V 8-bit MCU C8051F563-IQ Silicon Labs 1: £7.16 175In Stock End of Life	Mfr. Part No. C8051F563-IQ Mouser Part No 634-C8051F563-IQ End of Life	Silicon Labs	8-bit Microcontrollers - MCU 8051 50 MHz 32 kB 5 V 8-bit MCU	Datasheet	175In Stock	£7.16 £5.54 £5.13 £4.70 View £4.48 £4.36 £4.24 £4.02	Min.: 1 Mult.: 1	SMD/SMT	QFP-32	8051	8 bit	50 MHz	32 kB	2.25 kB		25 I/O	1.8 V	5.25 V	+ 125 C	AEC-Q100	Tray
8-bit Microcontrollers - MCU High-Speed Microcontroller DS80C310-MCG+ Analog Devices / Maxim Integrated 1: £24.84 60In Stock	Mfr. Part No. DS80C310-MCG+ Mouser Part No 700-DS80C310-MCG	Analog Devices / Maxim Integrated	8-bit Microcontrollers - MCU High-Speed Microcontroller Learn More about Analog Devices / Maxim Integrated maxim hvac solutions	Datasheet	60In Stock	£24.84 £20.91 £19.97 £17.86 View £16.54 £16.30 Quote	Min.: 1 Mult.: 1	Through Hole	PDIP-40	8051	8 bit	25 MHz	64 kB	256 B	No ADC	32 I/O	4 V	5.5 V	+ 70 C		Tube
8-bit Microcontrollers - MCU High-Speed Microcontroller DS80C310-QCG+ Analog Devices / Maxim Integrated 1: £23.33 13In Stock	Mfr. Part No. DS80C310-QCG+ Mouser Part No 700-DS80C310-QCG	Analog Devices / Maxim Integrated	8-bit Microcontrollers - MCU High-Speed Microcontroller Learn More about Analog Devices / Maxim Integrated maxim hvac solutions	Datasheet	13In Stock	£23.33 £18.25 £17.43 £14.95 View £14.54 £14.18 Quote	Min.: 1 Mult.: 1	SMD/SMT	PLCC-44	8051	8 bit	25 MHz	64 kB	256 B	No ADC	32 I/O	4 V	5.5 V	+ 70 C		Tube
8-bit Microcontrollers - MCU High-Speed/Low-Power Microcontrollers DS80C320-MCL+ Analog Devices / Maxim Integrated 1: £31.25 5In Stock	Mfr. Part No. DS80C320-MCL+ Mouser Part No 700-DS80C320-MCL	Analog Devices / Maxim Integrated	8-bit Microcontrollers - MCU High-Speed/Low-Power Microcontrollers Learn More about Analog Devices / Maxim Integrated maxim hvac solutions	Datasheet	5In Stock	£31.25 £26.30 £25.12 £21.46 View £20.86 £20.61 Quote	Min.: 1 Mult.: 1	Through Hole	PDIP-40	8051	8 bit	33 MHz	64 kB	256 B	No ADC	32 I/O	4.5 V	5.5 V	+ 70 C		Tube
8-bit Microcontrollers - MCU 8051 50 MHz 32 kB 5 V CAN LIN 8-bit MCU C8051F506-IM Silicon Labs 1: £8.66 6In Stock NRND	Mfr. Part No. C8051F506-IM Mouser Part No 634-C8051F506-IM NRND	Silicon Labs	8-bit Microcontrollers - MCU 8051 50 MHz 32 kB 5 V CAN LIN 8-bit MCU	Datasheet	6In Stock	£8.66 £6.78 £6.31 £5.80 View £5.74 £5.40 £5.28 Quote	Min.: 1 Mult.: 1	SMD/SMT	QFN-32	8051	8 bit	50 MHz	32 kB	4.25 kB	12 bit	25 I/O	1.8 V	5.25 V	+ 125 C	AEC-Q100	Tube
8-bit Microcontrollers - MCU Sngl-Cycle 8051 IND 2.4-3.6V 32K ISP FL AT89LP3240-20AU Microchip Technology 1: £7.87 60In Stock	Mfr. Part No. AT89LP3240-20AU Mouser Part No 556-AT89LP3240-20AU	Microchip Technology	8-bit Microcontrollers - MCU Sngl-Cycle 8051 IND 2.4-3.6V 32K ISP FL	Datasheet	60In Stock	£7.87 £7.25 £7.22	Min.: 1 Mult.: 1	SMD/SMT	TQFP-44	8051	8 bit	20 MHz	32 kB	4.25 kB	10 bit	38 I/O	2.4 V	3.6 V	+ 85 C		Tray
RF Microcontrollers - MCU RF Bluetooth SMART S OC with USB BLE A 5 A 595-CC2540F128RHAR CC2540F128RHAT Texas Instruments 1: £6.15 250In Stock	Mfr. Part No. CC2540F128RHAT Mouser Part No 595-CC2540F128RHAT	Texas Instruments	RF Microcontrollers - MCU RF Bluetooth SMART S OC with USB BLE A 5 A 595-CC2540F128RHAR Learn More about Texas Instruments ticc2540	Datasheet	250In Stock	Cut Tape £6.15 £5.07 £4.75 £4.53 Reel £3.91 View £3.90 £3.82 MouseReel Available	Min.: 1 Mult.: 1 : 250	SMD/SMT	VQFN-40	8051	8 bit		128 kB	8 kB			2 V	3.6 V	+ 85 C		Reel, Cut Tape, MouseReel
8-bit Microcontrollers - MCU USB-Flash-64k-ADC-QFN32 OTP available (T626-GM) C8051F381-GMR Silicon Labs 1: £5.45 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 £5.45 £4.21 £3.88 £3.54 View Reel £3.03 £3.29 £3.28 £3.19 £3.03	Min.: 1 Mult.: 1 : 2,500	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 C8051F383-GM Silicon Labs 1: £4.53 3In Stock NRND	Mfr. Part No. C8051F383-GM Mouser Part No 634-C8051F383-GM NRND	Silicon Labs	8-bit Microcontrollers - MCU 8051 50 MHz 32 kB 8-bit MCU Learn More about Silicon Labs silabs usb mcus	Datasheet	3In Stock	£4.53 £3.47 £3.20 £2.92 View £2.78 £2.70 £2.65	Min.: 1 Mult.: 1	SMD/SMT	QFN-32	8051	8 bit	48 MHz	32 kB	2.25 kB	10 bit	25 I/O	2.7 V	5.25 V	+ 85 C		Tube
8-bit Microcontrollers - MCU Next gen available (F380-GQ) 48 MIPS, 64KB,10ADC,USB,48Pin C8051F340-GQR Silicon Labs 1: £19.43 998Expected 15/01/2027	Mfr. Part No. C8051F340-GQR Mouser Part No 634-C8051F340-GQR	Silicon Labs	8-bit Microcontrollers - MCU Next gen available (F380-GQ) 48 MIPS, 64KB,10ADC,USB,48Pin	Datasheet	998Expected 15/01/2027	Cut Tape £19.43 £15.69 £14.37 £13.99 Reel £12.43 MouseReel Available	Min.: 1 Mult.: 1 : 500	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		Reel, Cut Tape, MouseReel
8-bit Microcontrollers - MCU 8051 25 MHz 16 kB 8-bit MCU C8051F311-GMR Silicon Labs 1: £9.28 4,952On Order	Mfr. Part No. C8051F311-GMR Mouser Part No 634-C8051F311-GMR	Silicon Labs	8-bit Microcontrollers - MCU 8051 25 MHz 16 kB 8-bit MCU	Datasheet	4,952On Order On Order Ship Dates Mfr. No: C8051F311-GMR Stock: 0 On Order: 2,452 Expected 27/11/2026 2,500 Expected 01/01/2027 Factory Lead Time: 16 Weeks	Cut Tape £9.28 £7.39 £6.70 £6.26 View Reel £5.46 £6.23 £5.81 £5.62 £5.46 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	SMD/SMT	QFN-28	8051	8 bit	25 MHz	16 kB	1.25 kB	10 bit	25 I/O	2.7 V	3.6 V	+ 85 C		Reel, Cut Tape, MouseReel
8-bit Microcontrollers - MCU 8051 25 MHz 8 kB 8-bit MCU C8051F313-GMR Silicon Labs 1: £7.24 Lead-Time 16 Weeks	Mfr. Part No. C8051F313-GMR Mouser Part No 634-C8051F313-GMR	Silicon Labs	8-bit Microcontrollers - MCU 8051 25 MHz 8 kB 8-bit MCU	Datasheet	Lead-Time 16 Weeks	Cut Tape £7.24 £5.63 £5.23 £4.79 £4.54 Reel £4.46	Min.: 1 Mult.: 1 : 2,500	SMD/SMT	QFN-24	8051	8 bit	25 MHz	8 kB	1.25 kB	10 bit	25 I/O	2.7 V	3.6 V	+ 85 C		Reel, Cut Tape
8-bit Microcontrollers - MCU 8051 100 MHz 32 kB MAC 8-bit MCU C8051F362-C-GM Silicon Labs 1: £11.72 1,421Expected 15/01/2027 NRND	Mfr. Part No. C8051F362-C-GM Mouser Part No 634-C8051F362-C-GM NRND	Silicon Labs	8-bit Microcontrollers - MCU 8051 100 MHz 32 kB MAC 8-bit MCU	Datasheet	1,421Expected 15/01/2027	£11.72 £9.42 £8.50 £7.98 View £7.94 £7.48 £7.25 Quote	Min.: 1 Mult.: 1	SMD/SMT	QFN-28	8051	8 bit	100 MHz	32 kB	1 kB	10 bit	25 I/O	3 V	3.6 V	+ 85 C		Tube
8-bit Microcontrollers - MCU CAN C51 64K FLASH CAN BOOT AT89C51CC03CA-RDTUM Microchip Technology 1: £8.28 319Expected 17/11/2026	Mfr. Part No. AT89C51CC03CA-RDTUM Mouser Part No 556-A89C51C03CARDTUM	Microchip Technology	8-bit Microcontrollers - MCU CAN C51 64K FLASH CAN BOOT Learn More about Microchip Technology microchip at89c51 mcus	Datasheet	319Expected 17/11/2026	£8.28 £7.60 £6.89	Min.: 1 Mult.: 1	SMD/SMT	VQFP-64	8051	8 bit	60 MHz	64 kB	2 kB	10 bit	36 I/O	3 V	5.5 V	+ 85 C		Tray
8-bit Microcontrollers - MCU C51RC2 32K FLASH 5V Com AT89C51RC2-SLSUM Microchip Technology 1: £6.45 Lead-Time 10 Weeks	Mfr. Part No. AT89C51RC2-SLSUM Mouser Part No 556-A89C51RC2SLSUM	Microchip Technology	8-bit Microcontrollers - MCU C51RC2 32K FLASH 5V Com Learn More about Microchip Technology microchip at89c51 mcus	Datasheet	Lead-Time 10 Weeks	£6.45 £5.92 £5.36	Min.: 1 Mult.: 1	SMD/SMT	PLCC-44	8051	8 bit	60 MHz	32 kB	1.25 kB	No ADC	32 I/O	2.7 V	5.5 V	+ 85 C		Tube
8-bit Microcontrollers - MCU 64KB 20MHz 2.4V-5.5V AT89LP51ED2-20JU Microchip Technology 1: £4.44 999Expected 21/12/2026	Mfr. Part No. AT89LP51ED2-20JU Mouser Part No 556-AT89LP51ED2-20JU	Microchip Technology	8-bit Microcontrollers - MCU 64KB 20MHz 2.4V-5.5V Learn More about Microchip Technology atmelat89lp52	Datasheet	999Expected 21/12/2026	£4.44 £4.06 £3.68	Min.: 1 Mult.: 1	SMD/SMT	PLCC-44	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 8KB/512B RAM, ADC, SOIC16 C8051F860-C-GSR Silicon Labs 1: £2.23 3,674On Order	Mfr. Part No. C8051F860-C-GSR Mouser Part No 634-C8051F860-C-GSR	Silicon Labs	8-bit Microcontrollers - MCU 8KB/512B RAM, ADC, SOIC16 Learn More about Silicon Labs silabs c8051f85 c8051f86 mcus	Datasheet	3,674On Order On Order Ship Dates Mfr. No: C8051F860-C-GSR Stock: 0 On Order: 1,174 Expected 13/11/2026 2,500 Expected 25/12/2026 Factory Lead Time: 12 Weeks	Cut Tape £2.23 £1.75 £1.55 £1.42 View Reel £1.10 £1.39 £1.31 £1.10 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	SMD/SMT	SOIC-16	8051	8 bit	25 MHz	8 kB	512 B	12 bit	13 I/O	2.2 V	3.6 V	+ 85 C		Reel, Cut Tape, MouseReel
8-bit Microcontrollers - MCU 50MIPS,128KB,12ADC,100Pin MCU C8051F124-GQ Silicon Labs 1: £36.47 1,102Expected 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	1,102Expected 04/12/2026	£36.47 £30.14 £28.23 £27.28 Quote Quote	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 25 MIPS, 8 kB, 256, SPI, UART, LIN 2.1, TSSOP20 C8051F530A-IT Silicon Labs 1: £4.92 3,854Expected 01/01/2027 End of Life	Mfr. Part No. C8051F530A-IT Mouser Part No 634-C8051F530A-IT End of Life	Silicon Labs	8-bit Microcontrollers - MCU 25 MIPS, 8 kB, 256, SPI, UART, LIN 2.1, TSSOP20	Datasheet	3,854Expected 01/01/2027	£4.92 £3.78 £3.28 £3.03 £2.92	Min.: 1 Mult.: 1	SMD/SMT	TSSOP-20	8051	8 bit	25 MHz	8 kB	256 B	12 bit	16 I/O	1.8 V	5.25 V	+ 125 C		Tube