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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 CAN/C51 Boot CAN AT89C51CC02CA-RATUM Microchip Technology 1: $11.11 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	$11.11 $10.20 $9.26	Min.: 1 Mult.: 1	SMD/SMT	VQFP-32	8051	20 I/O	8 bit	10 bit
8-bit Microcontrollers - MCU CAN C51 64K FLASH UAR BOOT AT89C51CC03UA-RDTUM Microchip Technology 1: $14.57 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	$14.57 $13.36 $12.08	Min.: 1 Mult.: 1	SMD/SMT	VQFP-64	8051	36 I/O	8 bit	10 bit
8-bit Microcontrollers - MCU 64kB Flash 2048B RAM 2.7V-5.5V AT89C51ED2-SLSUM Microchip Technology 1: $14.02 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	$14.02 $12.85 $11.64	Min.: 1 Mult.: 1	SMD/SMT	PLCC-44	8051	34 I/O	8 bit	No ADC
8-bit Microcontrollers - MCU C51ED2 64K FLASH 3-5.5V Ind AT89C51ED2-SMSUM Microchip Technology 1: $14.91 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	$14.91 $13.65 $12.38	Min.: 1 Mult.: 1	SMD/SMT	PLCC-68	8051	48 I/O	8 bit	No ADC
8-bit Microcontrollers - MCU C51IC2 32K FLASH I2C 32KHz 5V AT89C51IC2-SLSUM Microchip Technology 1: $11.98 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	$11.98 $11.68	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: $10.21 584In Stock 2,646Expected 6/11/2026	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 6/11/2026	$10.21 $9.37 $8.50	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: $6.34 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	$6.34 $5.83 $5.77	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: $7.03 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	$7.03 $6.46 $6.22	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: $12.81 198In Stock 360Expected 21/12/2026	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 21/12/2026	$12.81 $11.76 $10.65	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: $12.54 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 $12.54 $12.20 Reel $10.42	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: $3.66 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	$3.66 $3.35 $3.32	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: $3.35 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	$3.35 $3.06 $2.76	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: $5.17 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	$5.17 $4.73 $4.69	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: $4.52 2,329In 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	2,329In Stock	$4.52 $4.15 $3.75	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: $3.67 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	$3.67 $3.39 $3.05	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: $6.05 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	$6.05 $5.56 $5.34	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: $6.27 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 $6.27 Reel $5.25 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: $5.58 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	$5.58 $5.14 $5.05	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: $13.91 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	$13.91 $12.74 $11.56	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: $13.34 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	$13.34 $12.24 $11.08	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: $9.74 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	$9.74 $8.92 $8.08	Min.: 1 Mult.: 1	SMD/SMT	TQFP-44	8051	32 I/O	8 bit	No ADC
8-bit Microcontrollers - MCU C51RC2 FLASH 32k TQFP44 Com 5V GREEN AT89C51RC2T-RLTUM Microchip Technology 1: $11.14 39In Stock	Mfr. Part No. AT89C51RC2T-RLTUM Mouser Part No 556-AT89C51RC2TLTUM	Microchip Technology	8-bit Microcontrollers - MCU C51RC2 FLASH 32k TQFP44 Com 5V GREEN Learn More about Microchip Technology microchip at89c51 mcus	Datasheet	39In Stock	$11.14 $10.20 $9.23	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: $11.94 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	$11.94 $10.96 $9.93	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: $7.00 787In Stock 900Expected 30/10/2026	Mfr. Part No. AT89C55WD-24PU Mouser Part No 556-AT89C55WD-24PU	Microchip Technology	8-bit Microcontrollers - MCU 20K FLASH - 24MHZ IND TEMP 5V	Datasheet	787In Stock 900Expected 30/10/2026	$7.00 $6.43 $6.35	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: $5.48 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	$5.48 $5.03 $4.56	Min.: 1 Mult.: 1	SMD/SMT	PLCC-44	8051	40 I/O	8 bit	10 bit