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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 (SGD) 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 16KB Flash ROM, 1KB SRAM, 1 CHs of SPI,1T/8051 ML51FB9AE Nuvoton 1: $1.35 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	$1.35 $1.15 $0.981 $0.925 View $0.84 $0.821 $0.792 $0.782	Min.: 1 Mult.: 1	SMD/SMT	TSSOP-20	8051	16 I/O	8 bit	12 bit
8-bit Microcontrollers - MCU 64KB Flash, 4KB SRAM, 2 CHs of SPI,1T/8051,LCD,TK ML56LD1AE Nuvoton 1: $3.16 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	$3.16 $2.65 $2.33 $2.20 View $2.04 $1.96 $1.88 $1.86 $1.81	Min.: 1 Mult.: 1	SMD/SMT	LQFP-48	8051	42 I/O	8 bit	12 bit
8-bit Microcontrollers - MCU 16K Bytes Shared with LDROM MS51BA9AE Nuvoton 1: $0.952 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	$0.952 $0.819 $0.694 $0.654 View $0.593 $0.56 $0.547	Min.: 1 Mult.: 1	SMD/SMT	MSOP-10	8051	8 I/O	8 bit	12 bit
8-bit Microcontrollers - MCU 32K Bytes Shared with LDROM MS51FC0AE Nuvoton 1: $1.17 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	$1.17 $1.00 $0.853 $0.805 View $0.73 $0.711 $0.668 $0.653	Min.: 1 Mult.: 1	SMD/SMT	TSSOP-20	8051	18 I/O	8 bit	12 bit
8-bit Microcontrollers - MCU 32K Bytes Shared with LDROM MS51PC0AE Nuvoton 1: $1.71 83In Stock 1,500Expected 19/7/2027	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 19/7/2027	$1.71 $1.47 $1.28 $1.21 View $1.12 $1.07 $0.993 $0.94	Min.: 1 Mult.: 1	SMD/SMT	LQFP-32	8051	30 I/O	8 bit	12 bit
8-bit Microcontrollers - MCU 32K Bytes Shared with LDROM MS51TC0AE Nuvoton 1: $1.35 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	$1.35 $1.15 $1.01 $0.956 View $0.846 $0.805 $0.804 $0.775 $0.767	Min.: 1 Mult.: 1	SMD/SMT	QFN-33	8051	30 I/O	8 bit	12 bit
8-bit Microcontrollers - MCU 16K Bytes Shared with LDROM 0.4mm Pitch width MS51XB9AE Nuvoton 1: $0.884 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	$0.884 $0.758 $0.668 $0.631 View $0.555 $0.526 $0.498 $0.484	Min.: 1 Mult.: 1	SMD/SMT	QFN-20	8051	18 I/O	8 bit	12 bit
8-bit Microcontrollers - MCU Low Pin Count 8051 Series; 2.4V to 5.5V; -40 to 85 N76E003AT20 Nuvoton 1: $1.13 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	$1.13 $0.967 $0.824 $0.777 View $0.704 $0.687 $0.661 $0.654	Min.: 1 Mult.: 1	SMD/SMT	TSSOP-20	8051	18 I/O	8 bit	12 bit
8-bit Microcontrollers - MCU 2kB Flash 128B RAM 24MHz 2.7V-6.0V AT89C2051-24PU Microchip Technology 1: $2.83 674In Stock 576Expected 10/11/2026	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 576Expected 10/11/2026	$2.83 $2.60 $2.34	Min.: 1 Mult.: 1	Through Hole	PDIP-20	8051	15 I/O	8 bit	No ADC
8-bit Microcontrollers - MCU C51AC2 32K FLASHADC EEP 5V AT89C51AC2-SLSUM Microchip Technology 1: $14.02 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	$14.02 $12.85 $11.64	Min.: 1 Mult.: 1	SMD/SMT	PLCC-44	8051	34 I/O	8 bit	10 bit
8-bit Microcontrollers - MCU LO-VLTG 8K ISP FLASH -16MHZ 2.7-5.5V AT89LS52-16AU Microchip Technology 1: $3.11 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	$3.11 $2.84 $2.58	Min.: 1 Mult.: 1	SMD/SMT	TQFP-44	8051	32 I/O	8 bit	No ADC
8-bit Microcontrollers - MCU 64KB 20MHz 2.4V-5.5V AT89LP51ED2-20MU Microchip Technology 1: $7.67 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	$7.67 $7.00 $6.36	Min.: 1 Mult.: 1	SMD/SMT	VQFN-44	8051	36 I/O	8 bit	10 bit
8-bit Microcontrollers - MCU Single-Cycle 805124K ISP Flash,2.4-5.5V AT89LP51RB2-20AAU Microchip Technology 1: $5.22 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	$5.22 $4.79 $4.34	Min.: 1 Mult.: 1	SMD/SMT	LQFP-44	8051	40 I/O	8 bit	10 bit
8-bit Microcontrollers - MCU 8051 25 MHz 16 kB LFO 8-bit MCU C8051F338-GM Silicon Labs 1: $15.84 57In Stock NRND	Mfr. Part No. C8051F338-GM Mouser Part No 634-C8051F338-GM NRND	Silicon Labs	8-bit Microcontrollers - MCU 8051 25 MHz 16 kB LFO 8-bit MCU	Datasheet	57In Stock	$15.84 $12.40 $11.55 $10.61 View $10.50 $9.89 $9.66 Quote	Min.: 1 Mult.: 1	SMD/SMT	QFN-24	8051	21 I/O	8 bit	10 bit
8-bit Microcontrollers - MCU CTRL Boodloader UART AT89C51CC02UA-TISUM Microchip Technology 1: $11.11 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	$11.11 $10.20 $9.26	Min.: 1 Mult.: 1	SMD/SMT	SOIC-28	8051	20 I/O	8 bit	10 bit
8-bit Microcontrollers - MCU SINGLE CYCLE 2K FLASH-20MHZ 2.4-5.5V AT89LP2052-20XU Microchip Technology 1: $3.77 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	$3.77 $3.47 $3.40	Min.: 1 Mult.: 1	SMD/SMT	TSSOP-20	8051	15 I/O	8 bit
8-bit Microcontrollers - MCU 8KB,24ADC,28Pin MCU C8051F351-GMR Silicon Labs 1: $21.80 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 $21.80 $17.07 $15.90 $14.59 View Reel $12.59 $14.46 $13.60 $13.30 $12.59	Min.: 1 Mult.: 1 : 2,500	SMD/SMT	QFN-28	8051	17 I/O	8 bit	24 bit
8-bit Microcontrollers - MCU 64K Flash 50MHz 8051 1.71V to 5.5V CY8C3246LTI-149 Infineon Technologies 1: $19.53 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	$19.53 $15.16 $13.68 $12.89 View $12.29 $11.93 $11.37 Quote	Min.: 1 Mult.: 1	SMD/SMT	QFN-68	8051	46 I/O	8 bit	12 bit
8-bit Microcontrollers - MCU PSoC 32KB FLASH 1.7-5.5V 38 I/O CY8C3246LTI-149T Infineon Technologies 1: $19.76 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 $19.76 $15.01 $14.39 $12.68 View Reel $11.36 $12.06 $11.66 $11.37 $11.36 Quote	Min.: 1 Mult.: 1 : 2,000	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 CY8C3446LTI-085 Infineon Technologies 1: $21.96 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	$21.96 $17.19 $15.48 $14.63 View $13.97 $13.56 $13.33 Quote	Min.: 1 Mult.: 1	SMD/SMT	QFN-68	8051	48 I/O	8 bit	12 bit
8-bit Microcontrollers - MCU 8051 25 MHz 64 kB 8-bit MCU C8051F021-GQ Silicon Labs 1: $59.89 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	$59.89 $49.52 $46.25 $44.36 View $42.64 Quote	Min.: 1 Mult.: 1	SMD/SMT	TQFP-64	8051	32 I/O	8 bit	8 bit, 12 bit
8-bit Microcontrollers - MCU 64KB,10ADC,100Pin MCU C8051F022-GQ Silicon Labs 1: $50.09 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	$50.09 $40.56 $38.18 $36.60 $34.30	Min.: 1 Mult.: 1	SMD/SMT	TQFP-100	8051	64 I/O	8 bit	8 bit, 10 bit
8-bit Microcontrollers - MCU 100MIPS,128KB,12ADC,100Pin MCU C8051F120-GQ Silicon Labs 1: $75.14 5In Stock 859Expected 24/9/2027 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 24/9/2027	$75.14 $61.40 $57.96 $56.36 $52.39	Min.: 1 Mult.: 1	SMD/SMT	TQFP-100	8051	64 I/O	8 bit	8 bit, 12 bit
8-bit Microcontrollers - MCU 100MIPS,128KB,12ADC,100Pin MCU C8051F120-GQR Silicon Labs 1: $75.14 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 $75.14 $61.40 $57.96 $56.36 Reel $52.39	Min.: 1 Mult.: 1 : 250	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 C8051F503-IM Silicon Labs 1: $14.97 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	$14.97 $11.68 $10.87 $9.97 View $9.47 $9.28 $8.80	Min.: 1 Mult.: 1	SMD/SMT	QFN-32	8051	25 I/O	8 bit	12 bit