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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 20 PINS UART 2K FLASH-24MHZ 4-5.5V AT89C2051-24SU Microchip Technology 1: 1,24 € 2.438In Stock	Mfr. Part No. AT89C2051-24SU Mouser Part No 556-A89C2051-24SU	Microchip Technology	8-bit Microcontrollers - MCU 20 PINS UART 2K FLASH-24MHZ 4-5.5V	Datasheet	2.438In Stock	1,24 € 1,14 € 1,03 €	Min.: 1 Mult.: 1	SMD/SMT	SOIC-20	8051	8 bit	24 MHz	2 kB	128 B	No ADC	15 I/O	4 V	6 V	+ 85 C	Tube
8-bit Microcontrollers - MCU 8051 4K FLASH 2.7 TO 5.5V 24MHZ 4V-5.5V AT89C4051-24PU Microchip Technology 1: 1,82 € 2.346In Stock	Mfr. Part No. AT89C4051-24PU Mouser Part No 556-A89C4051-24PU	Microchip Technology	8-bit Microcontrollers - MCU 8051 4K FLASH 2.7 TO 5.5V 24MHZ 4V-5.5V	Datasheet	2.346In Stock	1,82 € 1,67 € 1,51 €	Min.: 1 Mult.: 1	Through Hole	PDIP-20	8051	8 bit	24 MHz	4 kB	128 B	No ADC	15 I/O	4 V	6 V	+ 85 C	Tube
8-bit Microcontrollers - MCU C51 16K Flash ADC AT89C5115-SISUM Microchip Technology 1: 8,32 € 396In Stock	Mfr. Part No. AT89C5115-SISUM Mouser Part No 556-A89C5115SISUM	Microchip Technology	8-bit Microcontrollers - MCU C51 16K Flash ADC Learn More about Microchip Technology microchip at89c51 mcus	Datasheet	396In Stock	8,32 € 7,62 € 6,89 €	Min.: 1 Mult.: 1	SMD/SMT	PLCC-28	8051	8 bit	40 MHz	16 kB	512 B	10 bit	20 I/O	3 V	5.5 V	+ 85 C	Tube
8-bit Microcontrollers - MCU C5130A 16K Flash USB 5V AT89C5130A-RDTUM Microchip Technology 1: 7,89 € 166In Stock	Mfr. Part No. AT89C5130A-RDTUM Mouser Part No 556-A89C5130ARDTUM	Microchip Technology	8-bit Microcontrollers - MCU C5130A 16K Flash USB 5V Learn More about Microchip Technology microchip at89c51 mcus	Datasheet	166In Stock	7,89 € 7,24 €	Min.: 1 Mult.: 1	SMD/SMT	VQFP-64	8051	8 bit	48 MHz	16 kB	1 kB	No ADC	34 I/O	2.7 V	5.5 V	+ 85 C	Tray
8-bit Microcontrollers - MCU C51AC3 64K FLASHADC EEP 5V AT89C51AC3-SLSUM Microchip Technology 1: 9,22 € 267In Stock	Mfr. Part No. AT89C51AC3-SLSUM Mouser Part No 556-A89C51AC3SLSUM	Microchip Technology	8-bit Microcontrollers - MCU C51AC3 64K FLASHADC EEP 5V Learn More about Microchip Technology microchip at89c51 mcus	Datasheet	267In Stock	9,22 € 8,46 € 7,66 €	Min.: 1 Mult.: 1	SMD/SMT	PLCC-44	8051	8 bit	60 MHz	64 kB	2 kB	10 bit	36 I/O	3 V	5.5 V	+ 85 C	Tube
8-bit Microcontrollers - MCU CAN/C51 Boot CAN AT89C51CC02CA-RATUM Microchip Technology 1: 7,03 € 495In Stock	Mfr. Part No. AT89C51CC02CA-RATUM Mouser Part No 556-A89C51C02CARATUM	Microchip Technology	8-bit Microcontrollers - MCU CAN/C51 Boot CAN Learn More about Microchip Technology microchip at89c51 mcus	Datasheet	495In Stock	7,03 € 6,45 € 5,86 €	Min.: 1 Mult.: 1	SMD/SMT	VQFP-32	8051	8 bit	40 MHz	16 kB	512 B	10 bit	20 I/O	3 V	5.5 V	+ 85 C	Tray
8-bit Microcontrollers - MCU CAN C51 64K FLASH UAR BOOT AT89C51CC03UA-RDTUM Microchip Technology 1: 9,21 € 405In Stock	Mfr. Part No. AT89C51CC03UA-RDTUM Mouser Part No 556-A89C51C03UARDTUM	Microchip Technology	8-bit Microcontrollers - MCU CAN C51 64K FLASH UAR BOOT Learn More about Microchip Technology microchip at89c51 mcus	Datasheet	405In Stock	9,21 € 8,45 € 7,64 €	Min.: 1 Mult.: 1	SMD/SMT	VQFP-64	8051	8 bit	60 MHz	64 kB	2 kB	10 bit	36 I/O	3 V	5.5 V	+ 85 C	Tray
8-bit Microcontrollers - MCU 64kB Flash 2048B RAM 2.7V-5.5V AT89C51ED2-SLSUM Microchip Technology 1: 8,87 € 930In Stock	Mfr. Part No. AT89C51ED2-SLSUM Mouser Part No 556-A89C51ED2SLSUM	Microchip Technology	8-bit Microcontrollers - MCU 64kB Flash 2048B RAM 2.7V-5.5V Learn More about Microchip Technology microchip at89c51 mcus	Datasheet	930In Stock	8,87 € 8,13 € 7,36 €	Min.: 1 Mult.: 1	SMD/SMT	PLCC-44	8051	8 bit	60 MHz	64 kB	2 kB	No ADC	34 I/O	2.7 V	5.5 V	+ 85 C	Tube
8-bit Microcontrollers - MCU C51ED2 64K FLASH 3-5.5V Ind AT89C51ED2-SMSUM Microchip Technology 1: 9,43 € 727In Stock	Mfr. Part No. AT89C51ED2-SMSUM Mouser Part No 556-A89C51ED2SMSUM	Microchip Technology	8-bit Microcontrollers - MCU C51ED2 64K FLASH 3-5.5V Ind Learn More about Microchip Technology microchip at89c51 mcus	Datasheet	727In Stock	9,43 € 8,63 € 7,83 €	Min.: 1 Mult.: 1	SMD/SMT	PLCC-68	8051	8 bit	60 MHz	64 kB	2 kB	No ADC	48 I/O	2.7 V	5.5 V	+ 85 C	Tube
8-bit Microcontrollers - MCU C51IC2 32K FLASH I2C 32KHz 5V AT89C51IC2-SLSUM Microchip Technology 1: 7,58 € 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	7,58 € 7,39 €	Min.: 1 Mult.: 1	SMD/SMT	PLCC-44	8051	8 bit	60 MHz	32 kB	1.25 kB	No ADC	34 I/O	2.7 V	5.5 V	+ 85 C	Tube
8-bit Microcontrollers - MCU C51RB2 16K FLASH 5V COM AT89C51RB2-SLSUM Microchip Technology 1: 6,46 € 1.178In Stock 2.646Expected 11/6/2026	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	1.178In Stock 2.646Expected 11/6/2026	6,46 € 5,93 € 5,38 €	Min.: 1 Mult.: 1	SMD/SMT	PLCC-44	8051	8 bit	60 MHz	16 kB	1.25 kB	No ADC	32 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 € 1.004In 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	1.004In 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 € 198In Stock 360Expected 12/21/2026	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	198In Stock 360Expected 12/21/2026	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 € 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	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 € 2.299In 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	2.299In 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 € 4.443In 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	4.443In 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 € 672In 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	672In 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 AT80 CISC ROMless 3-5V AT80C51RD2-3CSUM Microchip Technology 1: 4,34 € 317In Stock	Mfr. Part No. AT80C51RD2-3CSUM Mouser Part No 556-AT80C51RD2-3CSUM	Microchip Technology	8-bit Microcontrollers - MCU MCU 8-BIT AT80 CISC ROMless 3-5V	Datasheet	317In Stock	4,34 € 3,98 € 3,95 €	Min.: 1 Mult.: 1	Through Hole	PDIP-40	8051	8 bit	40 MHz	0 B	1.25 kB	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 € 637In 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	637In 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 € 316In 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	316In 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