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8051 Core 8-bit 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.	Core	Program Memory Size	Data RAM Size	Package/Case	Maximum Clock Frequency	ADC Resolution	Number of I/Os	Supply Voltage - Min	Supply Voltage - Max	Mounting Style	Data Bus Width	Minimum Operating Temperature	Maximum Operating Temperature	Series	Qualification	Packaging
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	8051	16 kB	1 kB	MSOP-10	24 MHz	12 bit	7 I/O	1.8 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 105 C			Tube
8-bit Microcontrollers - MCU 16KB Flash ROM, 1KB SRAM, 1 CHs of SPI,1T/8051 ML51FB9AE Nuvoton 1: £0.743 555In Stock	Mfr. Part No. ML51FB9AE Mouser Part No 503-ML51FB9AE	Nuvoton	8-bit Microcontrollers - MCU 16KB Flash ROM, 1KB SRAM, 1 CHs of SPI,1T/8051 Learn More about Nuvoton ml51 numicro mcus	Datasheet	555In Stock	£0.743 £0.636 £0.541 £0.511 View £0.464 £0.453 £0.437 £0.432	Min.: 1 Mult.: 1	8051	16 kB	1 kB	TSSOP-20	24 MHz	12 bit	16 I/O	1.8 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 105 C			Tube
8-bit Microcontrollers - MCU 64KB Flash, 4KB SRAM, 2 CHs of SPI,1T/8051,LCD,TK ML56LD1AE Nuvoton 1: £1.75 105In Stock	Mfr. Part No. ML56LD1AE Mouser Part No 503-ML56LD1AE	Nuvoton	8-bit Microcontrollers - MCU 64KB Flash, 4KB SRAM, 2 CHs of SPI,1T/8051,LCD,TK Learn More about Nuvoton ml56 numicro mcus	Datasheet	105In Stock	£1.75 £1.47 £1.28 £1.21 View £1.13 £1.08 £1.04 £1.03 £0.995	Min.: 1 Mult.: 1	8051	64 kB	4 kB	LQFP-48	24 MHz	12 bit	42 I/O	1.8 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 105 C			Tray
8-bit Microcontrollers - MCU 16K Bytes Shared with LDROM MS51BA9AE Nuvoton 1: £0.526 534In Stock	Mfr. Part No. MS51BA9AE Mouser Part No 503-MS51BA9AE	Nuvoton	8-bit Microcontrollers - MCU 16K Bytes Shared with LDROM Learn More about Nuvoton ms51 industrial mcus	Datasheet	534In Stock	£0.526 £0.452 £0.383 £0.361 View £0.327 £0.309 £0.302	Min.: 1 Mult.: 1	8051	8 kB	1 kB	MSOP-10	24 MHz	12 bit	8 I/O	2.4 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 105 C			Tube
8-bit Microcontrollers - MCU 32K Bytes Shared with LDROM MS51FC0AE Nuvoton 1: £0.646 744In Stock	Mfr. Part No. MS51FC0AE Mouser Part No 503-MS51FC0AE	Nuvoton	8-bit Microcontrollers - MCU 32K Bytes Shared with LDROM Learn More about Nuvoton ms51 industrial mcus	Datasheet	744In Stock	£0.646 £0.553 £0.471 £0.444 View £0.403 £0.393 £0.368 £0.361	Min.: 1 Mult.: 1	8051	32 kB	2 kB	TSSOP-20	24 MHz	12 bit	18 I/O	2.4 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 105 C			Tube
8-bit Microcontrollers - MCU 32K Bytes Shared with LDROM MS51PC0AE Nuvoton 1: £0.943 83In Stock 1,500Expected 19/07/2027	Mfr. Part No. MS51PC0AE Mouser Part No 503-MS51PC0AE	Nuvoton	8-bit Microcontrollers - MCU 32K Bytes Shared with LDROM Learn More about Nuvoton ms51 industrial mcus	Datasheet	83In Stock 1,500Expected 19/07/2027	£0.943 £0.811 £0.705 £0.667 View £0.62 £0.589 £0.548 £0.519	Min.: 1 Mult.: 1	8051	32 kB	2 kB	LQFP-32	24 MHz	12 bit	30 I/O	2.4 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 105 C			Tray
8-bit Microcontrollers - MCU 32K Bytes Shared with LDROM MS51TC0AE Nuvoton 1: £0.743 975In Stock	Mfr. Part No. MS51TC0AE Mouser Part No 503-MS51TC0AE	Nuvoton	8-bit Microcontrollers - MCU 32K Bytes Shared with LDROM Learn More about Nuvoton ms51 industrial mcus	Datasheet	975In Stock	£0.743 £0.636 £0.559 £0.528 View £0.467 £0.444 £0.443 £0.428 £0.423	Min.: 1 Mult.: 1	8051	32 kB	2 kB	QFN-33	24 MHz	12 bit	30 I/O	2.4 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 105 C			Tray
8-bit Microcontrollers - MCU 16K Bytes Shared with LDROM 0.4mm Pitch width MS51XB9AE Nuvoton 1: £0.488 627In Stock	Mfr. Part No. MS51XB9AE Mouser Part No 503-MS51XB9AE	Nuvoton	8-bit Microcontrollers - MCU 16K Bytes Shared with LDROM 0.4mm Pitch width Learn More about Nuvoton ms51 industrial mcus	Datasheet	627In Stock	£0.488 £0.418 £0.368 £0.348 View £0.306 £0.291 £0.275 £0.267	Min.: 1 Mult.: 1	8051	16 kB	1 kB	QFN-20	24 MHz	12 bit	18 I/O	2.4 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 105 C			Tray
8-bit Microcontrollers - MCU Low Pin Count 8051 Series; 2.4V to 5.5V; -40 to 85 N76E003AT20 Nuvoton 1: £0.623 1,227In Stock	Mfr. Part No. N76E003AT20 Mouser Part No 503-N76E003AT20	Nuvoton	8-bit Microcontrollers - MCU Low Pin Count 8051 Series; 2.4V to 5.5V; -40 to 85	Datasheet	1,227In Stock	£0.623 £0.533 £0.455 £0.429 View £0.388 £0.379 £0.365 £0.361	Min.: 1 Mult.: 1	8051	18 kB	256 B	TSSOP-20	16 MHz	12 bit	18 I/O	2.4 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 105 C			Tube
8-bit Microcontrollers - MCU 2kB Flash 128B RAM 24MHz 2.7V-6.0V AT89C2051-24PU Microchip Technology 1: £1.56 674In Stock 576On Order	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	674In Stock 576On Order	£1.56 £1.43 £1.29	Min.: 1 Mult.: 1	8051	2 kB	128 B	PDIP-20	24 MHz	No ADC	15 I/O	4 V	6 V	Through Hole	8 bit	- 40 C	+ 85 C	89C		Tube
8-bit Microcontrollers - MCU C51AC2 32K FLASHADC EEP 5V AT89C51AC2-SLSUM Microchip Technology 1: £7.74 101In Stock	Mfr. Part No. AT89C51AC2-SLSUM Mouser Part No 556-A89C51AC2SLSUM	Microchip Technology	8-bit Microcontrollers - MCU C51AC2 32K FLASHADC EEP 5V Learn More about Microchip Technology microchip at89c51 mcus	Datasheet	101In Stock	£7.74 £7.10 £6.43	Min.: 1 Mult.: 1	8051	32 kB	1.25 kB	PLCC-44	40 MHz	10 bit	34 I/O	3 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 85 C	89C		Tube
8-bit Microcontrollers - MCU LO-VLTG 8K ISP FLASH -16MHZ 2.7-5.5V AT89LS52-16AU Microchip Technology 1: £1.72 176In Stock	Mfr. Part No. AT89LS52-16AU Mouser Part No 556-A89LS52-16AU	Microchip Technology	8-bit Microcontrollers - MCU LO-VLTG 8K ISP FLASH -16MHZ 2.7-5.5V	Datasheet	176In Stock	£1.72 £1.57 £1.43	Min.: 1 Mult.: 1	8051	8 kB	256 B	TQFP-44	16 MHz	No ADC	32 I/O	2.7 V	4 V	SMD/SMT	8 bit	- 40 C	+ 85 C	89LS		Tray
8-bit Microcontrollers - MCU 64KB 20MHz 2.4V-5.5V AT89LP51ED2-20MU Microchip Technology 1: £4.23 30In Stock	Mfr. Part No. AT89LP51ED2-20MU Mouser Part No 556-AT89LP51ED2-20MU	Microchip Technology	8-bit Microcontrollers - MCU 64KB 20MHz 2.4V-5.5V Learn More about Microchip Technology atmelat89lp52	Datasheet	30In Stock	£4.23 £3.87 £3.51	Min.: 1 Mult.: 1	8051	64 kB	256 B	VQFN-44	20 MHz	10 bit	36 I/O	2.4 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 85 C			Tray
8-bit Microcontrollers - MCU Single-Cycle 805124K ISP Flash,2.4-5.5V AT89LP51RB2-20AAU Microchip Technology 1: £2.88 196In Stock	Mfr. Part No. AT89LP51RB2-20AAU Mouser Part No 556-AT89LP51RB220AAU	Microchip Technology	8-bit Microcontrollers - MCU Single-Cycle 805124K ISP Flash,2.4-5.5V Learn More about Microchip Technology atmelat89lp52	Datasheet	196In Stock	£2.88 £2.65 £2.41	Min.: 1 Mult.: 1	8051	24 kB	256 B	LQFP-44	20 MHz	10 bit	40 I/O	2.4 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 85 C			Tray
8-bit Microcontrollers - MCU CTRL Boodloader UART AT89C51CC02UA-TISUM Microchip Technology 1: £6.14 54In Stock	Mfr. Part No. AT89C51CC02UA-TISUM Mouser Part No 556-A89C51C02UATISUM	Microchip Technology	8-bit Microcontrollers - MCU CTRL Boodloader UART Learn More about Microchip Technology microchip at89c51 mcus	Datasheet	54In Stock	£6.14 £5.63 £5.12	Min.: 1 Mult.: 1	8051	16 kB	512 B	SOIC-28	40 MHz	10 bit	20 I/O	3 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 85 C	89C		Tube
8-bit Microcontrollers - MCU SINGLE CYCLE 2K FLASH-20MHZ 2.4-5.5V AT89LP2052-20XU Microchip Technology 1: £2.08 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	£2.08 £1.91 £1.90	Min.: 1 Mult.: 1	8051	2 kB	256 B	TSSOP-20	20 MHz		15 I/O	2.4 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 85 C	89LP		Tube
8-bit Microcontrollers - MCU 8KB,24ADC,28Pin MCU C8051F351-GMR Silicon Labs 1: £12.04 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 £12.04 £9.42 £8.77 £8.06 View Reel £6.95 £7.98 £7.51 £7.34 £6.95	Min.: 1 Mult.: 1 : 2,500	8051	8 kB	768 B	QFN-28	50 MHz	24 bit	17 I/O	2.7 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 85 C	C8051F351		Reel, Cut Tape
8-bit Microcontrollers - MCU 64K Flash 50MHz 8051 1.71V to 5.5V CY8C3246LTI-149 Infineon Technologies 1: £10.78 8In Stock	Mfr. Part No. CY8C3246LTI-149 Mouser Part No 727-CY8C3246LTI-149	Infineon Technologies	8-bit Microcontrollers - MCU 64K Flash 50MHz 8051 1.71V to 5.5V Learn More about Infineon Technologies cypresspsoc3	Datasheet	8In Stock	£10.78 £8.37 £7.55 £7.11 View £6.78 £6.58 £6.28 Quote	Min.: 1 Mult.: 1	8051	64 kB	8 kB	QFN-68	50 MHz	12 bit	46 I/O	1.71 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 85 C	CY8C3246		Tray
8-bit Microcontrollers - MCU PSoC 32KB FLASH 1.7-5.5V 38 I/O CY8C3246LTI-149T Infineon Technologies 1: £10.91 23In Stock	Mfr. Part No. CY8C3246LTI-149T Mouser Part No 727-CY8C3246LTI-149T	Infineon Technologies	8-bit Microcontrollers - MCU PSoC 32KB FLASH 1.7-5.5V 38 I/O Learn More about Infineon Technologies cypress psoc	Datasheet	23In Stock	Cut Tape £10.91 £8.28 £7.94 £7.00 View Reel £6.27 £6.66 £6.43 £6.28 £6.27 Quote	Min.: 1 Mult.: 1 : 2,000	8051	64 kB	8 kB	QFN-68	50 MHz	12 bit	46 I/O	1.71 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 85 C	CY8C3246		Reel, Cut Tape
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	8051	64 kB	8 kB	QFN-68	50 MHz	12 bit	48 I/O	1.71 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 85 C	CY8C3446		Tray
8-bit Microcontrollers - MCU 8051 25 MHz 64 kB 8-bit MCU C8051F021-GQ Silicon Labs 1: £32.64 28In 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	28In Stock	£32.64 £26.68 £25.18 £24.48 £22.77	Min.: 1 Mult.: 1	8051	64 kB	4.35 kB	TQFP-64	25 MHz	8 bit, 12 bit	32 I/O	2.7 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 85 C	C8051F021		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	8051	64 kB	4.35 kB	TQFP-100	25 MHz	8 bit, 10 bit	64 I/O	2.7 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 85 C	C8051F022		Tray
8-bit Microcontrollers - MCU 100MIPS,128KB,12ADC,100Pin MCU C8051F120-GQ Silicon Labs 1: £41.48 5In Stock 859Expected 24/09/2027 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	5In Stock 859Expected 24/09/2027	£41.48 £33.90 £32.00 £31.11 £28.92	Min.: 1 Mult.: 1	8051	128 kB	8.25 kB	TQFP-100	100 MHz	8 bit, 12 bit	64 I/O	3 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 85 C	C8051F120		Tray
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	8051	64 kB	4.25 kB	QFN-32	50 MHz	12 bit	25 I/O	1.8 V	5.25 V	SMD/SMT	8 bit	- 40 C	+ 125 C	C8051F503	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	8051	32 kB	2.25 kB	QFP-32	50 MHz		25 I/O	1.8 V	5.25 V	SMD/SMT	8 bit	- 40 C	+ 125 C	C8051F563	AEC-Q100	Tray