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8051 Core Embedded Processors & Controllers

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Core = 8051

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (IDR) 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 C51IC2 32K FLASH I2C 32KHz 5V AT89C51IC2-SLSUM Microchip Technology 1: Rp161.628,26 377In Stock	Mfr. Part No. AT89C51IC2-SLSUM Mouser Part No 556-A89C51IC2SLSUM	Microchip Technology	8-bit Microcontrollers - MCU C51IC2 32K FLASH I2C 32KHz 5V Learn More about Microchip Technology microchip at89c51 mcus	Datasheet	377In Stock	Rp161.628,26 Rp148.235,68 Rp133.925,80	Min.: 1 Mult.: 1	SMD/SMT	PLCC-44	8051	34 I/O	8 bit	No ADC
8-bit Microcontrollers - MCU 64K FLASH 32KHz 3.5-5V Ind. AT89C51ID2-SLSUM Microchip Technology 1: Rp232.443,82 365In Stock	Mfr. Part No. AT89C51ID2-SLSUM Mouser Part No 556-A89C51ID2SLSUM	Microchip Technology	8-bit Microcontrollers - MCU 64K FLASH 32KHz 3.5-5V Ind. Learn More about Microchip Technology microchip at89c51 mcus	Datasheet	365In Stock	Rp232.443,82 Rp212.997,06 Rp192.999,92	Min.: 1 Mult.: 1	SMD/SMT	PLCC-44	8051	34 I/O	8 bit	No ADC
8-bit Microcontrollers - MCU C51RB2 16K FLASH 5V COM AT89C51RB2-SLSUM Microchip Technology 1: Rp137.778,46 584In Stock 2.646Expected 06/11/2026	Mfr. Part No. AT89C51RB2-SLSUM Mouser Part No 556-A89C51RB2SLSUM	Microchip Technology	8-bit Microcontrollers - MCU C51RB2 16K FLASH 5V COM Learn More about Microchip Technology microchip at89c51 mcus	Datasheet	584In Stock 2.646Expected 06/11/2026	Rp137.778,46 Rp126.403,94 Rp114.662,50	Min.: 1 Mult.: 1	SMD/SMT	PLCC-44	8051	32 I/O	8 bit	No ADC
8-bit Microcontrollers - MCU 32K FLASH 4.0 TO 5.5V - 24MHZ 5V AT89C51RC-24JU Microchip Technology 1: Rp85.492,36 699In Stock	Mfr. Part No. AT89C51RC-24JU Mouser Part No 556-A89C51RC-24JU	Microchip Technology	8-bit Microcontrollers - MCU 32K FLASH 4.0 TO 5.5V - 24MHZ 5V Learn More about Microchip Technology microchip at89c51 mcus	Datasheet	699In Stock	Rp85.492,36 Rp78.704,34 Rp77.787,04	Min.: 1 Mult.: 1	SMD/SMT	PLCC-44	8051	32 I/O	8 bit	No ADC
8-bit Microcontrollers - MCU 32K FLASH 4.0 TO 5.5V AT89C51RC-24PU Microchip Technology 1: Rp94.848,82 999In Stock	Mfr. Part No. AT89C51RC-24PU Mouser Part No 556-A89C51RC-24PU	Microchip Technology	8-bit Microcontrollers - MCU 32K FLASH 4.0 TO 5.5V Learn More about Microchip Technology microchip at89c51 mcus	Datasheet	999In Stock	Rp94.848,82 Rp87.143,50 Rp85.859,28	Min.: 1 Mult.: 1	Through Hole	PDIP-40	8051	32 I/O	8 bit	No ADC
8-bit Microcontrollers - MCU 32kB Flash 1280B RAM 2.7V-5.5V AT89C51RC2-3CSUM Microchip Technology 1: Rp172.819,32 201In Stock 360Expected 20/11/2026	Mfr. Part No. AT89C51RC2-3CSUM Mouser Part No 556-A89C51RC2-3CSUM	Microchip Technology	8-bit Microcontrollers - MCU 32kB Flash 1280B RAM 2.7V-5.5V Learn More about Microchip Technology microchip at89c51 mcus	Datasheet	201In Stock 360Expected 20/11/2026	Rp172.819,32 Rp158.692,90 Rp143.649,18	Min.: 1 Mult.: 1	Through Hole	PDIP-40	8051	32 I/O	8 bit	No ADC
8-bit Microcontrollers - MCU C51RD2 64K FLASH 3-5.5V AT89C51RD2-SLRUM Microchip Technology 1: Rp169.150,12 426In Stock	Mfr. Part No. AT89C51RD2-SLRUM Mouser Part No 556-A89C51RD2SLRUM	Microchip Technology	8-bit Microcontrollers - MCU C51RD2 64K FLASH 3-5.5V Learn More about Microchip Technology microchip at89c51 mcus	Datasheet	426In Stock	Cut Tape Rp169.150,12 Rp164.563,62 Reel Rp140.530,36	Min.: 1 Mult.: 1 : 500	SMD/SMT	PLCC-44	8051	34 I/O	8 bit
8-bit Microcontrollers - MCU SINGLE CYCLE 4K FLASH-20MHZ 2.4-5.5V AT89LP4052-20PU Microchip Technology 1: Rp49.350,74 1.225In Stock	Mfr. Part No. AT89LP4052-20PU Mouser Part No 556-A89LP4052-20PU	Microchip Technology	8-bit Microcontrollers - MCU SINGLE CYCLE 4K FLASH-20MHZ 2.4-5.5V	Datasheet	1.225In Stock	Rp49.350,74 Rp45.131,16 Rp44.764,24	Min.: 1 Mult.: 1	Through Hole	PDIP-20	8051	15 I/O	8 bit	No ADC
8-bit Microcontrollers - MCU SINGLE CYCLE 4K FLASH-20MHZ 2.4-5.5V AT89LP4052-20SU Microchip Technology 1: Rp45.131,16 905In Stock	Mfr. Part No. AT89LP4052-20SU Mouser Part No 556-A89LP4052-20SU	Microchip Technology	8-bit Microcontrollers - MCU SINGLE CYCLE 4K FLASH-20MHZ 2.4-5.5V	Datasheet	905In Stock	Rp45.131,16 Rp41.278,50 Rp37.242,38	Min.: 1 Mult.: 1	SMD/SMT	SOIC-20	8051	15 I/O	8 bit	No ADC
8-bit Microcontrollers - MCU 8kB Flash 256B RAM 33MHz 2.7V-4.0V AT89LS52-16JU Microchip Technology 1: Rp69.714,80 1.098In Stock	Mfr. Part No. AT89LS52-16JU Mouser Part No 556-A89LS52-16JU	Microchip Technology	8-bit Microcontrollers - MCU 8kB Flash 256B RAM 33MHz 2.7V-4.0V	Datasheet	1.098In Stock	Rp69.714,80 Rp63.844,08 Rp63.293,70	Min.: 1 Mult.: 1	SMD/SMT	PLCC-44	8051	32 I/O	8 bit	No ADC
8-bit Microcontrollers - MCU 4kB Flash 128B RAM 33MHz 4.0V-5.5V AT89S51-24PU Microchip Technology 1: Rp60.908,72 2.229In Stock	Mfr. Part No. AT89S51-24PU Mouser Part No 556-A89S51-24PU	Microchip Technology	8-bit Microcontrollers - MCU 4kB Flash 128B RAM 33MHz 4.0V-5.5V	Datasheet	2.229In Stock	Rp60.908,72 Rp55.955,30 Rp50.634,96	Min.: 1 Mult.: 1	Through Hole	PDIP-40	8051	32 I/O	8 bit	No ADC
8-bit Microcontrollers - MCU 12kB Flash 256B RAM 2.7V-5.5V AT89S8253-24AU Microchip Technology 1: Rp49.534,20 4.442In Stock	Mfr. Part No. AT89S8253-24AU Mouser Part No 556-A89S8253-24AU	Microchip Technology	8-bit Microcontrollers - MCU 12kB Flash 256B RAM 2.7V-5.5V	Datasheet	4.442In Stock	Rp49.534,20 Rp45.681,54 Rp41.095,04	Min.: 1 Mult.: 1	SMD/SMT	TQFP-44	8051	32 I/O	8 bit	No ADC
8-bit Microcontrollers - MCU 12kB Flash 256B RAM 2.7V-5.5V AT89S8253-24PU Microchip Technology 1: Rp81.639,70 677In Stock	Mfr. Part No. AT89S8253-24PU Mouser Part No 556-A89S8253-24PU	Microchip Technology	8-bit Microcontrollers - MCU 12kB Flash 256B RAM 2.7V-5.5V	Datasheet	677In Stock	Rp81.639,70 Rp75.035,14 Rp74.117,84	Min.: 1 Mult.: 1	Through Hole	PDIP-40	8051	32 I/O	8 bit	No ADC
8-bit Microcontrollers - MCU MCU 8-Bit HI Perform ROMless 3-5V AT80C51RD2-SLRUM Microchip Technology 1: Rp84.575,06 634In Stock	Mfr. Part No. AT80C51RD2-SLRUM Mouser Part No 556-AT80C51RD2-SLRUM	Microchip Technology	8-bit Microcontrollers - MCU MCU 8-Bit HI Perform ROMless 3-5V	Datasheet	634In Stock	Cut Tape Rp84.575,06 Reel Rp70.815,56 MouseReel Available	Min.: 1 Mult.: 1 : 500	SMD/SMT	PLCC-44	8051	32 I/O	8 bit	No ADC
8-bit Microcontrollers - MCU MCU 8-Bit HI Perform ROMless 3-5V AT80C51RD2-SLSUM Microchip Technology 1: Rp75.218,60 424In Stock	Mfr. Part No. AT80C51RD2-SLSUM Mouser Part No 556-AT80C51RD2-SLSUM	Microchip Technology	8-bit Microcontrollers - MCU MCU 8-Bit HI Perform ROMless 3-5V	Datasheet	424In Stock	Rp75.218,60 Rp69.347,88 Rp68.063,66	Min.: 1 Mult.: 1	SMD/SMT	PLCC-44	8051	32 I/O	8 bit	No ADC
8-bit Microcontrollers - MCU C51AC3 64kF ADC EEP TQFP44 ind 5V GREEN AT89C51AC3T-RLTUM Microchip Technology 1: Rp187.679,58 296In Stock	Mfr. Part No. AT89C51AC3T-RLTUM Mouser Part No 556-AT89C51AC3TLTUM	Microchip Technology	8-bit Microcontrollers - MCU C51AC3 64kF ADC EEP TQFP44 ind 5V GREEN Learn More about Microchip Technology microchip at89c51 mcus	Datasheet	296In Stock	Rp187.679,58 Rp171.902,02 Rp155.941,00	Min.: 1 Mult.: 1	SMD/SMT	TQFP-64	8051	36 I/O	8 bit	10 bit
8-bit Microcontrollers - MCU C51ED2 64kF TQFP44 3-5.5V Ind GREEN AT89C51ED2T-RLTUM Microchip Technology 1: Rp179.974,26 1.073In Stock	Mfr. Part No. AT89C51ED2T-RLTUM Mouser Part No 556-AT89C51ED2TLTUM	Microchip Technology	8-bit Microcontrollers - MCU C51ED2 64kF TQFP44 3-5.5V Ind GREEN Learn More about Microchip Technology microchip at89c51 mcus	Datasheet	1.073In Stock	Rp179.974,26 Rp165.114,00 Rp149.519,90	Min.: 1 Mult.: 1	SMD/SMT	TQFP-44	8051	34 I/O	8 bit
8-bit Microcontrollers - MCU C51RB2 FLASH 16k TQFP44 COM 5V GREEN AT89C51RB2T-RLTUM Microchip Technology 1: Rp131.357,36 330In Stock	Mfr. Part No. AT89C51RB2T-RLTUM Mouser Part No 556-AT89C51RB2TLTUM	Microchip Technology	8-bit Microcontrollers - MCU C51RB2 FLASH 16k TQFP44 COM 5V GREEN Learn More about Microchip Technology microchip at89c51 mcus	Datasheet	330In Stock	Rp131.357,36 Rp120.349,76 Rp108.975,24	Min.: 1 Mult.: 1	SMD/SMT	TQFP-44	8051	32 I/O	8 bit	No ADC
8-bit Microcontrollers - MCU C51RD2 64kF TQFP44 3-5.5V Ind. GREEN AT89C51RD2T-RLTUM Microchip Technology 1: Rp161.077,88 281In Stock	Mfr. Part No. AT89C51RD2T-RLTUM Mouser Part No 556-AT89C51RD2TLTUM	Microchip Technology	8-bit Microcontrollers - MCU C51RD2 64kF TQFP44 3-5.5V Ind. GREEN Learn More about Microchip Technology microchip at89c51 mcus	Datasheet	281In Stock	Rp161.077,88 Rp147.868,76 Rp133.925,80	Min.: 1 Mult.: 1	SMD/SMT	TQFP-44	8051	34 I/O	8 bit
8-bit Microcontrollers - MCU 20K FLASH - 24MHZ IND TEMP 5V AT89C55WD-24PU Microchip Technology 1: Rp94.481,90 1.662In Stock	Mfr. Part No. AT89C55WD-24PU Mouser Part No 556-AT89C55WD-24PU	Microchip Technology	8-bit Microcontrollers - MCU 20K FLASH - 24MHZ IND TEMP 5V	Datasheet	1.662In Stock	Rp94.481,90 Rp86.776,58 Rp85.675,82	Min.: 1 Mult.: 1	Through Hole	PDIP-40	8051	32 I/O	8 bit	No ADC
8-bit Microcontrollers - MCU Single-Cycle 805124K ISP Flash,2.4-5.5V AT89LP51RB2-20JU Microchip Technology 1: Rp73.934,38 436In Stock	Mfr. Part No. AT89LP51RB2-20JU Mouser Part No 556-AT89LP51RB2-20JU	Microchip Technology	8-bit Microcontrollers - MCU Single-Cycle 805124K ISP Flash,2.4-5.5V Learn More about Microchip Technology atmelat89lp52	Datasheet	436In Stock	Rp73.934,38 Rp67.880,20 Rp61.459,10	Min.: 1 Mult.: 1	SMD/SMT	PLCC-44	8051	40 I/O	8 bit	10 bit
8-bit Microcontrollers - MCU Single-Cycle 805132K ISP Flash,2.4-5.5V AT89LP51RC2-20JU Microchip Technology 1: Rp82.190,08 358In Stock	Mfr. Part No. AT89LP51RC2-20JU Mouser Part No 556-AT89LP51RC2-20JU	Microchip Technology	8-bit Microcontrollers - MCU Single-Cycle 805132K ISP Flash,2.4-5.5V Learn More about Microchip Technology atmelat89lp52	Datasheet	358In Stock	Rp82.190,08 Rp75.218,60 Rp68.063,66	Min.: 1 Mult.: 1	SMD/SMT	PLCC-44	8051	40 I/O	8 bit	10 bit
8-bit Microcontrollers - MCU 64KB 20MHz 2.4V-5.5V AT89LP51RD2-20JU Microchip Technology 1: Rp109.158,70 278In Stock	Mfr. Part No. AT89LP51RD2-20JU Mouser Part No 556-AT89LP51RD2-20JU	Microchip Technology	8-bit Microcontrollers - MCU 64KB 20MHz 2.4V-5.5V Learn More about Microchip Technology atmelat89lp52	Datasheet	278In Stock	Rp109.158,70 Rp100.169,16 Rp98.701,48	Min.: 1 Mult.: 1	SMD/SMT	PLCC-44	8051	40 I/O	8 bit	10 bit
8-bit Microcontrollers - MCU Single-Cycle 8051 8K ISP Flash MCU AT89LP52-20AU Microchip Technology 1: Rp31.555,12 2.754In Stock	Mfr. Part No. AT89LP52-20AU Mouser Part No 556-AT89LP52-20AU	Microchip Technology	8-bit Microcontrollers - MCU Single-Cycle 8051 8K ISP Flash MCU Learn More about Microchip Technology atmelat89lp52	Datasheet	2.754In Stock	Rp31.555,12 Rp28.619,76 Rp26.051,32	Min.: 1 Mult.: 1	SMD/SMT	TQFP-44	8051	36 I/O	8 bit	No ADC
8-bit Microcontrollers - MCU 24 MHZ, TQFP44, IND TEMP, GREEN AT89S52-24AUR Microchip Technology 1: Rp44.397,32 2.453In Stock	Mfr. Part No. AT89S52-24AUR Mouser Part No 556-AT89S52-24AUR	Microchip Technology	8-bit Microcontrollers - MCU 24 MHZ, TQFP44, IND TEMP, GREEN	Datasheet	2.453In Stock	Cut Tape Rp44.397,32 Rp42.746,18 Reel Rp36.692,00 MouseReel Available	Min.: 1 Mult.: 1 : 2.000	SMD/SMT	TQFP-44	8051	32 I/O	8 bit	No ADC