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8051 Core Microcontrollers - MCU

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (EUR) 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	Packaging
8-bit Microcontrollers - MCU 64K FLASH 32KHz 3.5-5V Ind. AT89C51ID2-SLSUM Microchip Technology 1: 10,90 € 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	10,90 € 9,98 € 9,05 €	Min.: 1 Mult.: 1	SMD/SMT	PLCC-44	8051	8 bit	60 MHz	64 kB	1.75 kB	No ADC	34 I/O	2.7 V	5.5 V	+ 85 C	Tube
8-bit Microcontrollers - MCU 32K FLASH 4.0 TO 5.5V - 24MHZ 5V AT89C51RC-24JU Microchip Technology 1: 4,01 € 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	4,01 € 3,69 €	Min.: 1 Mult.: 1	SMD/SMT	PLCC-44	8051	8 bit	24 MHz	32 kB	512 B	No ADC	32 I/O	4 V	5.5 V	+ 85 C	Tube
8-bit Microcontrollers - MCU 32K FLASH 4.0 TO 5.5V AT89C51RC-24PU Microchip Technology 1: 4,45 € 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	4,45 € 4,09 € 4,08 €	Min.: 1 Mult.: 1	Through Hole	PDIP-40	8051	8 bit	24 MHz	32 kB	512 B	No ADC	32 I/O	4 V	5.5 V	+ 85 C	Tube
8-bit Microcontrollers - MCU 32kB Flash 1280B RAM 2.7V-5.5V AT89C51RC2-3CSUM Microchip Technology 1: 8,10 € 201In Stock 360Expected 11/20/2026	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 11/20/2026	8,10 € 7,44 € 6,73 €	Min.: 1 Mult.: 1	Through Hole	PDIP-40	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 C51RD2 64K FLASH 3-5.5V AT89C51RD2-SLRUM Microchip Technology 1: 7,93 € 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 7,93 € 7,71 € Reel 6,59 €	Min.: 1 Mult.: 1 : 500	SMD/SMT	PLCC-44	8051	8 bit	60 MHz	64 kB	2 kB		34 I/O	2.7 V	5.5 V	+ 85 C	Reel, Cut Tape
8-bit Microcontrollers - MCU SINGLE CYCLE 4K FLASH-20MHZ 2.4-5.5V AT89LP4052-20PU Microchip Technology 1: 2,31 € 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	2,31 € 2,12 €	Min.: 1 Mult.: 1	Through Hole	PDIP-20	8051	8 bit	20 MHz	4 kB	256 B	No ADC	15 I/O	2.4 V	5.5 V	+ 85 C	Tube
8-bit Microcontrollers - MCU SINGLE CYCLE 4K FLASH-20MHZ 2.4-5.5V AT89LP4052-20SU Microchip Technology 1: 2,12 € 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	2,12 € 1,94 € 1,75 €	Min.: 1 Mult.: 1	SMD/SMT	SOIC-20	8051	8 bit	20 MHz	4 kB	256 B	No ADC	15 I/O	2.4 V	5.5 V	+ 85 C	Tube
8-bit Microcontrollers - MCU 8kB Flash 256B RAM 33MHz 2.7V-4.0V AT89LS52-16JU Microchip Technology 1: 3,27 € 598In 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	598In Stock	3,27 € 3,00 €	Min.: 1 Mult.: 1	SMD/SMT	PLCC-44	8051	8 bit	16 MHz	8 kB	256 B	No ADC	32 I/O	2.7 V	4 V	+ 85 C	Tube
8-bit Microcontrollers - MCU 4kB Flash 128B RAM 33MHz 4.0V-5.5V AT89S51-24PU Microchip Technology 1: 2,86 € 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	2,86 € 2,62 € 2,37 €	Min.: 1 Mult.: 1	Through Hole	PDIP-40	8051	8 bit	24 MHz	4 kB	128 B	No ADC	32 I/O	4 V	5.5 V	+ 85 C	Tube
8-bit Microcontrollers - MCU 12kB Flash 256B RAM 2.7V-5.5V AT89S8253-24AU Microchip Technology 1: 2,32 € 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	2,32 € 2,14 € 1,93 €	Min.: 1 Mult.: 1	SMD/SMT	TQFP-44	8051	8 bit	24 MHz	12 kB	256 B	No ADC	32 I/O	2.7 V	5.5 V	+ 85 C	Tray
8-bit Microcontrollers - MCU 12kB Flash 256B RAM 2.7V-5.5V AT89S8253-24PU Microchip Technology 1: 3,83 € 612In 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	612In Stock	3,83 € 3,52 €	Min.: 1 Mult.: 1	Through Hole	PDIP-40	8051	8 bit	24 MHz	12 kB	256 B	No ADC	32 I/O	2.7 V	5.5 V	+ 85 C	Tube
8-bit Microcontrollers - MCU MCU 8-Bit HI Perform ROMless 3-5V AT80C51RD2-SLRUM Microchip Technology 1: 3,96 € 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 3,96 € Reel 3,37 € MouseReel Available	Min.: 1 Mult.: 1 : 500	SMD/SMT	PLCC-44	8051	8 bit	40 MHz	1 kB	1.25 kB	No ADC	32 I/O	2.7 V	5.5 V	+ 85 C	Reel, Cut Tape, MouseReel
8-bit Microcontrollers - MCU MCU 8-Bit HI Perform ROMless 3-5V AT80C51RD2-SLSUM Microchip Technology 1: 3,53 € 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	3,53 € 3,25 € 3,24 €	Min.: 1 Mult.: 1	SMD/SMT	PLCC-44	8051	8 bit	40 MHz	1 kB	1.25 kB	No ADC	32 I/O	2.7 V	5.5 V	+ 85 C	Tube
8-bit Microcontrollers - MCU C51AC3 64kF ADC EEP TQFP44 ind 5V GREEN AT89C51AC3T-RLTUM Microchip Technology 1: 8,80 € 193In 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	193In Stock	8,80 € 8,06 € 7,31 €	Min.: 1 Mult.: 1	SMD/SMT	TQFP-64	8051	8 bit	60 MHz	64 kB	128 B	10 bit	36 I/O	3 V	5.5 V	+ 85 C	Tray
8-bit Microcontrollers - MCU C51ED2 64kF TQFP44 3-5.5V Ind GREEN AT89C51ED2T-RLTUM Microchip Technology 1: 8,44 € 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	8,44 € 7,74 € 7,01 €	Min.: 1 Mult.: 1	SMD/SMT	TQFP-44	8051	8 bit	60 MHz	64 kB	2 kB		34 I/O	2.7 V	5.5 V	+ 85 C	Tray
8-bit Microcontrollers - MCU C51RB2 FLASH 16k TQFP44 COM 5V GREEN AT89C51RB2T-RLTUM Microchip Technology 1: 6,16 € 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	6,16 € 5,64 € 5,11 €	Min.: 1 Mult.: 1	SMD/SMT	TQFP-44	8051	8 bit	60 MHz	16 kB	1.25 kB	No ADC	32 I/O	2.7 V	5.5 V	+ 85 C	Tray
8-bit Microcontrollers - MCU C51RD2 64kF TQFP44 3-5.5V Ind. GREEN AT89C51RD2T-RLTUM Microchip Technology 1: 7,55 € 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	7,55 € 6,93 € 6,28 €	Min.: 1 Mult.: 1	SMD/SMT	TQFP-44	8051	8 bit	60 MHz	64 kB	2 kB		34 I/O	2.7 V	5.5 V	+ 85 C	Tray
8-bit Microcontrollers - MCU 20K FLASH - 24MHZ IND TEMP 5V AT89C55WD-24PU Microchip Technology 1: 4,43 € 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	4,43 € 4,07 €	Min.: 1 Mult.: 1	Through Hole	PDIP-40	8051	8 bit	24 MHz	20 kB	256 B	No ADC	32 I/O	4 V	5.5 V	+ 85 C	Tube
8-bit Microcontrollers - MCU Single-Cycle 805124K ISP Flash,2.4-5.5V AT89LP51RB2-20JU Microchip Technology 1: 3,47 € 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	3,47 € 3,18 € 2,89 €	Min.: 1 Mult.: 1	SMD/SMT	PLCC-44	8051	8 bit	20 MHz	24 kB	256 B	10 bit	40 I/O	2.4 V	5.5 V	+ 85 C	Tube
8-bit Microcontrollers - MCU Single-Cycle 805132K ISP Flash,2.4-5.5V AT89LP51RC2-20JU Microchip Technology 1: 3,85 € 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	3,85 € 3,53 € 3,19 €	Min.: 1 Mult.: 1	SMD/SMT	PLCC-44	8051	8 bit	20 MHz	32 kB	256 B	10 bit	40 I/O	2.4 V	5.5 V	+ 85 C	Tube
8-bit Microcontrollers - MCU 64KB 20MHz 2.4V-5.5V AT89LP51RD2-20JU Microchip Technology 1: 5,12 € 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	5,12 € 4,70 € 4,68 €	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 Single-Cycle 8051 8K ISP Flash MCU AT89LP52-20AU Microchip Technology 1: 1,48 € 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	1,48 € 1,34 € 1,23 €	Min.: 1 Mult.: 1	SMD/SMT	TQFP-44	8051	8 bit	20 MHz	8 kB	256 B	No ADC	36 I/O	2.4 V	5.5 V	+ 85 C	Tray
8-bit Microcontrollers - MCU 24 MHZ, TQFP44, IND TEMP, GREEN AT89S52-24AUR Microchip Technology 1: 2,08 € 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 2,08 € 2,00 € Reel 1,72 € MouseReel Available	Min.: 1 Mult.: 1 : 2.000	SMD/SMT	TQFP-44	8051	8 bit	24 MHz	8 kB	256 B	No ADC	32 I/O	4 V	5.5 V	+ 85 C	Reel, Cut Tape, MouseReel
8-bit Microcontrollers - MCU 8kB Flash 256B RAM 33MHz 4.0V-5.5V AT89S52-24JU Microchip Technology 1: 3,26 € 2.211In Stock	Mfr. Part No. AT89S52-24JU Mouser Part No 556-AT89S52-24JU	Microchip Technology	8-bit Microcontrollers - MCU 8kB Flash 256B RAM 33MHz 4.0V-5.5V	Datasheet	2.211In Stock	3,26 € 3,00 €	Min.: 1 Mult.: 1	SMD/SMT	PLCC-44	8051	8 bit	24 MHz	8 kB	256 B	No ADC	32 I/O	4 V	5.5 V	+ 85 C	Tube
8-bit Microcontrollers - MCU 50 MIPS, 64 kB, 4 kB, CAN2.0, LIN 2.1, SPI, UART, I2C, QFN32 C8051F502-IMR Silicon Labs 1: 9,92 € 296In Stock	Mfr. Part No. C8051F502-IMR Mouser Part No 634-C8051F502-IMR	Silicon Labs	8-bit Microcontrollers - MCU 50 MIPS, 64 kB, 4 kB, CAN2.0, LIN 2.1, SPI, UART, I2C, QFN32	Datasheet	296In Stock	Cut Tape 9,92 € 7,75 € 7,21 € 6,60 € 6,29 € Reel 6,21 €	Min.: 1 Mult.: 1 : 2.500			8051	8 bit						1.8 V	5.25 V		Reel, Cut Tape