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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 (USD) 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 4K FLASH 2.7 TO 5.5V 12MHZ 4V-5.5V AT89C4051-12SU Microchip Technology 1: $1.50 552On Order	Mfr. Part No. AT89C4051-12SU Mouser Part No 556-A89C405112SU	Microchip Technology	8-bit Microcontrollers - MCU 8051 4K FLASH 2.7 TO 5.5V 12MHZ 4V-5.5V	Datasheet	552On Order	$1.50 $1.38 $1.24	Min.: 1 Mult.: 1	SMD/SMT	SOIC-20	8051	15 I/O	8 bit	No ADC
8-bit Microcontrollers - MCU 8051 50 MHz 64 kB 5 V CAN LIN 8-bit MCU C8051F508-IM Silicon Labs 1: $13.64 370Expected 25/06/2027 End of Life	Mfr. Part No. C8051F508-IM Mouser Part No 634-C8051F508-IM End of Life	Silicon Labs	8-bit Microcontrollers - MCU 8051 50 MHz 64 kB 5 V CAN LIN 8-bit MCU Learn More about Silicon Labs silicon c8051f58x automotive industrial mcus	Datasheet	370Expected 25/06/2027	$13.64 $10.69 $9.95 $9.14 View $9.05 $8.75	Min.: 1 Mult.: 1	SMD/SMT	QFN-40	8051	33 I/O	8 bit	12 bit
8-bit Microcontrollers - MCU 64KB Flash ROM, 4KB SRAM, 2 CHs of SPI,1T/8051 ML51LD1AE Nuvoton 1: $2.99 500Expected 15/07/2027	Mfr. Part No. ML51LD1AE Mouser Part No 503-ML51LD1AE	Nuvoton	8-bit Microcontrollers - MCU 64KB Flash ROM, 4KB SRAM, 2 CHs of SPI,1T/8051	Datasheet	500Expected 15/07/2027	Cut Tape $2.99 $1.95 $1.77 $1.53 Reel $1.29	Min.: 1 Mult.: 1 : 250	SMD/SMT	LQFP-48	8051	43 I/O	8 bit	12 bit
8-bit Microcontrollers - MCU 16KB Flash ROM, 1KB SRAM, 1 CHs of SPI,1T/8051 ML51PB9AE Nuvoton 1: $2.45 499Expected 21/10/2027	Mfr. Part No. ML51PB9AE Mouser Part No 503-ML51PB9AE	Nuvoton	8-bit Microcontrollers - MCU 16KB Flash ROM, 1KB SRAM, 1 CHs of SPI,1T/8051 Learn More about Nuvoton ml51 numicro mcus	Datasheet	499Expected 21/10/2027	$2.45 $1.58 $1.41 $1.17 View $1.09 $0.954 $0.843 $0.832	Min.: 1 Mult.: 1	SMD/SMT	LQFP-32	8051	28 I/O	8 bit	12 bit
8-bit Microcontrollers - MCU 32KB Flash ROM, 2KB SRAM, 2 CHs of SPI,1T/8051 ML51TC0AE Nuvoton 1: $1.59 490Expected 29/06/2027	Mfr. Part No. ML51TC0AE Mouser Part No 503-ML51TC0AE	Nuvoton	8-bit Microcontrollers - MCU 32KB Flash ROM, 2KB SRAM, 2 CHs of SPI,1T/8051 Learn More about Nuvoton ml51 numicro mcus	Datasheet	490Expected 29/06/2027	$1.59 $1.35 $1.18 $1.12 View $0.989 $0.969 $0.945	Min.: 1 Mult.: 1	SMD/SMT	QFN-33	8051	28 I/O	8 bit	12 bit
8-bit Microcontrollers - MCU 64KB 20MHz 2.4V-5.5V AT89LP51RD2-20AAU Microchip Technology 1: $5.11 275Expected 25/01/2027	Mfr. Part No. AT89LP51RD2-20AAU Mouser Part No 556-AT89LP51RD220AAU	Microchip Technology	8-bit Microcontrollers - MCU 64KB 20MHz 2.4V-5.5V Learn More about Microchip Technology atmelat89lp52	Datasheet	275Expected 25/01/2027	$5.11 $4.69 $4.25	Min.: 1 Mult.: 1	SMD/SMT	LQFP-44	8051	40 I/O	8 bit	10 bit
8-bit Microcontrollers - MCU 8051 50 MHz 128 kB 5 V CAN LIN 8-bit MCU C8051F580-IM Silicon Labs 1: $16.07 10Expected 04/12/2026 End of Life	Mfr. Part No. C8051F580-IM Mouser Part No 634-C8051F580-IM End of Life	Silicon Labs	8-bit Microcontrollers - MCU 8051 50 MHz 128 kB 5 V CAN LIN 8-bit MCU Learn More about Silicon Labs silicon c8051f58x automotive industrial mcus	Datasheet	10Expected 04/12/2026	$16.07 $14.15 $12.47 $11.03	Min.: 1 Mult.: 1	SMD/SMT	QFN-48	8051	40 I/O	8 bit	12 bit
8-bit Microcontrollers - MCU C51AC3 64K FLASHADC EEP 5V AT89C51AC3-RDTUM Microchip Technology 1: $10.21 Non-Stocked Lead-Time 8 Weeks	Mfr. Part No. AT89C51AC3-RDTUM Mouser Part No 556-A89C51AC3RDTUM	Microchip Technology	8-bit Microcontrollers - MCU C51AC3 64K FLASHADC EEP 5V Learn More about Microchip Technology microchip at89c51 mcus	Datasheet	Non-Stocked Lead-Time 8 Weeks	$10.21 $9.38 $8.47	Min.: 1 Mult.: 1	SMD/SMT	VQFP-64	8051	36 I/O	8 bit	10 bit
8-bit Microcontrollers - MCU LPC/CAN/C51 BootUA IND AT89C51CC02UA-RATUM Microchip Technology 250: $6.81 Non-Stocked Lead-Time 10 Weeks	Mfr. Part No. AT89C51CC02UA-RATUM Mouser Part No 556-A89C51C02UARATUM	Microchip Technology	8-bit Microcontrollers - MCU LPC/CAN/C51 BootUA IND Learn More about Microchip Technology microchip at89c51 mcus	Datasheet	Non-Stocked Lead-Time 10 Weeks	$6.81	Min.: 250 Mult.: 250	SMD/SMT	VQFP-32	8051	20 I/O	8 bit
8-bit Microcontrollers - MCU C51ED2 64K FLASH 3-5.5V Ind AT89C51ED2-RDRUM Microchip Technology 1,500: $8.66 Non-Stocked Lead-Time 9 Weeks	Mfr. Part No. AT89C51ED2-RDRUM Mouser Part No 556-A89C51ED2RDRUM	Microchip Technology	8-bit Microcontrollers - MCU C51ED2 64K FLASH 3-5.5V Ind Learn More about Microchip Technology microchip at89c51 mcus	Datasheet	Non-Stocked Lead-Time 9 Weeks	Reel $8.66	Min.: 1,500 Mult.: 1,500 : 1,500	SMD/SMT	LQFP-64	8051	32 I/O	8 bit	No ADC
8-bit Microcontrollers - MCU 64kB Flash 2048B RAM 2.7V-5.5V AT89C51ED2-RDTUM Microchip Technology 160: $8.66 Non-Stocked Lead-Time 8 Weeks	Mfr. Part No. AT89C51ED2-RDTUM Mouser Part No 556-A89C51ED2RDTUM	Microchip Technology	8-bit Microcontrollers - MCU 64kB Flash 2048B RAM 2.7V-5.5V Learn More about Microchip Technology microchip at89c51 mcus	Datasheet	Non-Stocked Lead-Time 8 Weeks	$8.66	Min.: 160 Mult.: 160	SMD/SMT	VQFP-64	8051	50 I/O	8 bit	No ADC
8-bit Microcontrollers - MCU C51ED2 64K FLASH 3-5.5V Ind AT89C51ED2-SLRUM Microchip Technology 500: $8.72 Non-Stocked Lead-Time 8 Weeks	Mfr. Part No. AT89C51ED2-SLRUM Mouser Part No 556-A89C51ED2SLRUM	Microchip Technology	8-bit Microcontrollers - MCU C51ED2 64K FLASH 3-5.5V Ind Learn More about Microchip Technology microchip at89c51 mcus	Datasheet	Non-Stocked Lead-Time 8 Weeks	Reel $8.72	Min.: 500 Mult.: 500 : 500	SMD/SMT	PLCC-44	8051	32 I/O	8 bit	No ADC
8-bit Microcontrollers - MCU C51IC2 32K FLASH I2C 32KHz 3V AT89C51IC2-SLRUL Microchip Technology 500: $7.66 Non-Stocked Lead-Time 9 Weeks	Mfr. Part No. AT89C51IC2-SLRUL Mouser Part No 556-A89C51IC2SLRUL	Microchip Technology	8-bit Microcontrollers - MCU C51IC2 32K FLASH I2C 32KHz 3V Learn More about Microchip Technology microchip at89c51 mcus	Datasheet	Non-Stocked Lead-Time 9 Weeks	Reel $7.66	Min.: 500 Mult.: 500 : 500	SMD/SMT	PLCC-44	8051	34 I/O	8 bit	No ADC
8-bit Microcontrollers - MCU C51IC2 32K FLASH I2C 32KHz 5V AT89C51IC2-SLRUM Microchip Technology 500: $7.49 Non-Stocked Lead-Time 9 Weeks	Mfr. Part No. AT89C51IC2-SLRUM Mouser Part No 556-A89C51IC2SLRUM	Microchip Technology	8-bit Microcontrollers - MCU C51IC2 32K FLASH I2C 32KHz 5V Learn More about Microchip Technology microchip at89c51 mcus	Datasheet	Non-Stocked Lead-Time 9 Weeks	Reel $7.49	Min.: 500 Mult.: 500 : 500	SMD/SMT	PLCC-44	8051	34 I/O	8 bit	No ADC
8-bit Microcontrollers - MCU C51ID2 64K FLASH TWI 32KHz 5V AT89C51ID2-SLRUM Microchip Technology 500: $10.68 Non-Stocked Lead-Time 9 Weeks	Mfr. Part No. AT89C51ID2-SLRUM Mouser Part No 556-A89C51ID2SLRUM	Microchip Technology	8-bit Microcontrollers - MCU C51ID2 64K FLASH TWI 32KHz 5V Learn More about Microchip Technology microchip at89c51 mcus	Datasheet	Non-Stocked Lead-Time 9 Weeks	Reel $10.68	Min.: 500 Mult.: 500 : 500	SMD/SMT	PLCC-44	8051	32 I/O	8 bit	No ADC
8-bit Microcontrollers - MCU C51RB2 FLASH 3V 16k Ind AT89C51RB2-SLRUL Microchip Technology 500: $6.75 Non-Stocked Lead-Time 9 Weeks	Mfr. Part No. AT89C51RB2-SLRUL Mouser Part No 556-A89C51RB2SLRUL	Microchip Technology	8-bit Microcontrollers - MCU C51RB2 FLASH 3V 16k Ind Learn More about Microchip Technology microchip at89c51 mcus	Datasheet	Non-Stocked Lead-Time 9 Weeks	Reel $6.75	Min.: 500 Mult.: 500 : 500	SMD/SMT	PLCC-44	8051	32 I/O	8 bit	No ADC
8-bit Microcontrollers - MCU C51RB2 FLASH 5V 16k ind AT89C51RB2-SLRUM Microchip Technology 500: $6.75 Non-Stocked Lead-Time 9 Weeks	Mfr. Part No. AT89C51RB2-SLRUM Mouser Part No 556-A89C51RB2SLRUM	Microchip Technology	8-bit Microcontrollers - MCU C51RB2 FLASH 5V 16k ind Learn More about Microchip Technology microchip at89c51 mcus	Datasheet	Non-Stocked Lead-Time 9 Weeks	Reel $6.75	Min.: 500 Mult.: 500 : 500	SMD/SMT	PLCC-44	8051	32 I/O	8 bit	No ADC
8-bit Microcontrollers - MCU C51RC2 32K FLASH 3V Ind AT89C51RC2-SLRUL Microchip Technology 500: $8.01 Non-Stocked Lead-Time 9 Weeks	Mfr. Part No. AT89C51RC2-SLRUL Mouser Part No 556-A89C51RC2SLRUL	Microchip Technology	8-bit Microcontrollers - MCU C51RC2 32K FLASH 3V Ind Learn More about Microchip Technology microchip at89c51 mcus	Datasheet	Non-Stocked Lead-Time 9 Weeks	Reel $8.01	Min.: 500 Mult.: 500 : 500	SMD/SMT	PLCC-44	8051	32 I/O	8 bit	No ADC
8-bit Microcontrollers - MCU C51RC2 32K FLASH 5V Com AT89C51RC2-SLRUM Microchip Technology 500: $8.01 Non-Stocked Lead-Time 9 Weeks	Mfr. Part No. AT89C51RC2-SLRUM Mouser Part No 556-A89C51RC2SLRUM	Microchip Technology	8-bit Microcontrollers - MCU C51RC2 32K FLASH 5V Com Learn More about Microchip Technology microchip at89c51 mcus	Datasheet	Non-Stocked Lead-Time 9 Weeks	Reel $8.01	Min.: 500 Mult.: 500 : 500	SMD/SMT	PLCC-44	8051	32 I/O	8 bit	No ADC
8-bit Microcontrollers - MCU LO-VLTG 8K ISP FLASH -16MHZ 2.7-5.5V AT89LS52-16PU Microchip Technology 220: $3.07 Non-Stocked Lead-Time 9 Weeks	Mfr. Part No. AT89LS52-16PU Mouser Part No 556-A89LS52-16PU	Microchip Technology	8-bit Microcontrollers - MCU LO-VLTG 8K ISP FLASH -16MHZ 2.7-5.5V	Datasheet	Non-Stocked Lead-Time 9 Weeks	$3.07	Min.: 220 Mult.: 10	Through Hole	PDIP-40	8051	32 I/O	8 bit	No ADC
8-bit Microcontrollers - MCU 32K Flash 3V USB AT89C5131A-TIRUL Microchip Technology 1,000: $6.62 Non-Stocked Lead-Time 9 Weeks	Mfr. Part No. AT89C5131A-TIRUL Mouser Part No 556-AT89C5131A-TIRUL	Microchip Technology	8-bit Microcontrollers - MCU 32K Flash 3V USB	Datasheet	Non-Stocked Lead-Time 9 Weeks	Reel $6.62	Min.: 1,000 Mult.: 1,000 : 1,000	SMD/SMT	SOIC-28	8051	18 I/O	8 bit	No ADC
8-bit Microcontrollers - MCU 8-bit 16K Flash C51RB2 AT89C51RB2-3CSUL Microchip Technology 100: $6.75 Non-Stocked Lead-Time 8 Weeks	Mfr. Part No. AT89C51RB2-3CSUL Mouser Part No 556-AT89C51RB2-3CSUL	Microchip Technology	8-bit Microcontrollers - MCU 8-bit 16K Flash C51RB2 Learn More about Microchip Technology microchip at89c51 mcus	Datasheet	Non-Stocked Lead-Time 8 Weeks	$6.75	Min.: 100 Mult.: 10	Through Hole	PDIP-40	8051	32 I/O	8 bit	No ADC
8-bit Microcontrollers - MCU C51RB2 FLASH 16k TQFP44 ind 3V GREEN AT89C51RB2T-RLRUL Microchip Technology 1: $7.77 Non-Stocked Lead-Time 9 Weeks	Mfr. Part No. AT89C51RB2T-RLRUL Mouser Part No 556-AT89C51RB2TLRUL	Microchip Technology	8-bit Microcontrollers - MCU C51RB2 FLASH 16k TQFP44 ind 3V GREEN Learn More about Microchip Technology microchip at89c51 mcus	Datasheet	Non-Stocked Lead-Time 9 Weeks	Cut Tape $7.77 $7.58 Reel $6.45	Min.: 1 Mult.: 1 : 2,000	SMD/SMT	TQFP-44	8051	32 I/O	8 bit	No ADC
8-bit Microcontrollers - MCU Single-Cycle 805124K ISP Flash,2.4-5.5V AT89LP51RB2-20AU Microchip Technology 320: $3.19 Non-Stocked Lead-Time 12 Weeks	Mfr. Part No. AT89LP51RB2-20AU Mouser Part No 556-AT89LP51RB2-20AU	Microchip Technology	8-bit Microcontrollers - MCU Single-Cycle 805124K ISP Flash,2.4-5.5V Learn More about Microchip Technology atmelat89lp52	Datasheet	Non-Stocked Lead-Time 12 Weeks	$3.19	Min.: 320 Mult.: 160	SMD/SMT	TQFP-44	8051	40 I/O	8 bit	10 bit
8-bit Microcontrollers - MCU Single-Cycle 8051 64K ISP Flash AT89LP6440-20MU Microchip Technology 360: $4.25 Non-Stocked Lead-Time 9 Weeks	Mfr. Part No. AT89LP6440-20MU Mouser Part No 556-AT89LP6440-20MU	Microchip Technology	8-bit Microcontrollers - MCU Single-Cycle 8051 64K ISP Flash	Datasheet	Non-Stocked Lead-Time 9 Weeks	$4.25	Min.: 360 Mult.: 360	SMD/SMT	VQFN-44	8051	38 I/O	8 bit	10 bit