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8051 Core 8-bit Microcontrollers - MCU

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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.	Core	Program Memory Size	Data RAM Size	Package/Case	Maximum Clock Frequency	ADC Resolution	Number of I/Os	Supply Voltage - Min	Supply Voltage - Max	Mounting Style	Data Bus Width	Minimum Operating Temperature	Maximum Operating Temperature	Series	Qualification	Packaging
8-bit Microcontrollers - MCU 24MHZ, PLCC, IND TEMP, GREEN, 5V AT89C55WD-24JU Microchip Technology 1: $4.66 268In Stock 702Expected 09/11/2026	Mfr. Part No. AT89C55WD-24JU Mouser Part No 556-AT89C55WD-24JU	Microchip Technology	8-bit Microcontrollers - MCU 24MHZ, PLCC, IND TEMP, GREEN, 5V	Datasheet	268In Stock 702Expected 09/11/2026	$4.66 $4.29 $4.24	Min.: 1 Mult.: 1	8051	20 kB	256 B	PLCC-44	24 MHz	No ADC	32 I/O	4 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 85 C	AT89C55WD		Tube
8-bit Microcontrollers - MCU Single Cycle 8051 4K ISP FL AT89LP51-20AU Microchip Technology 1: $1.72 610In Stock	Mfr. Part No. AT89LP51-20AU Mouser Part No 556-AT89LP51-20AU	Microchip Technology	8-bit Microcontrollers - MCU Single Cycle 8051 4K ISP FL Learn More about Microchip Technology atmelat89lp52	Datasheet	610In Stock	$1.72 $1.56 $1.42	Min.: 1 Mult.: 1	8051	4 kB	256 B	TQFP-44	20 MHz	No ADC	36 I/O	2.4 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 85 C			Tray
8-bit Microcontrollers - MCU 64KB 20MHz 2.4V-5.5V AT89LP51ED2-20PU Microchip Technology 1: $5.90 133In Stock	Mfr. Part No. AT89LP51ED2-20PU Mouser Part No 556-AT89LP51ED2-20PU	Microchip Technology	8-bit Microcontrollers - MCU 64KB 20MHz 2.4V-5.5V Learn More about Microchip Technology atmelat89lp52	Datasheet	133In Stock	$5.90 $5.40 $4.89	Min.: 1 Mult.: 1	8051	64 kB	256 B	PDIP-40	20 MHz	10 bit	40 I/O	2.4 V	5.5 V	Through Hole	8 bit	- 40 C	+ 85 C			Tube
8-bit Microcontrollers - MCU 64KB 20MHz 2.4V-5.5V AT89LP51RD2-20PU Microchip Technology 1: $5.34 209In Stock	Mfr. Part No. AT89LP51RD2-20PU Mouser Part No 556-AT89LP51RD2-20PU	Microchip Technology	8-bit Microcontrollers - MCU 64KB 20MHz 2.4V-5.5V Learn More about Microchip Technology atmelat89lp52	Datasheet	209In Stock	$5.34 $4.92 $4.44	Min.: 1 Mult.: 1	8051	64 kB	256 B	PDIP-40	20 MHz	10 bit	40 I/O	2.4 V	5.5 V	Through Hole	8 bit	- 40 C	+ 85 C			Tube
8-bit Microcontrollers - MCU Single-Cycle 8051 8K ISP Flash MCU AT89LP52-20JU Microchip Technology 1: $3.45 103In Stock	Mfr. Part No. AT89LP52-20JU Mouser Part No 556-AT89LP52-20JU	Microchip Technology	8-bit Microcontrollers - MCU Single-Cycle 8051 8K ISP Flash MCU Learn More about Microchip Technology atmelat89lp52	Datasheet	103In Stock	$3.45 $3.16 $3.04	Min.: 1 Mult.: 1	8051	8 kB	256 B	PLCC-44	20 MHz	No ADC	36 I/O	2.4 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 85 C			Tube
8-bit Microcontrollers - MCU 8kB/512B RAM, ADC, QFN20 C8051F850-C-GMR Silicon Labs 1: $2.95 309In Stock	Mfr. Part No. C8051F850-C-GMR Mouser Part No 634-C8051F850-C-GMR	Silicon Labs	8-bit Microcontrollers - MCU 8kB/512B RAM, ADC, QFN20 Learn More about Silicon Labs silabs c8051f85 c8051f86 mcus	Datasheet	309In Stock	Cut Tape $2.95 $2.20 $2.01 $1.80 Reel $1.53 View $1.70 $1.66 $1.58 $1.50 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	8051	8 kB	512 B	QFN-20	25 MHz	12 bit	16 I/O	2.2 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 85 C	C8051F850		Reel, Cut Tape, MouseReel
8-bit Microcontrollers - MCU 32K Flash 50MHz 8051 1.71V to 5.5V CY8C3245LTI-139 Infineon Technologies 1: $9.64 186In Stock	Mfr. Part No. CY8C3245LTI-139 Mouser Part No 727-CY8C3245LTI-139	Infineon Technologies	8-bit Microcontrollers - MCU 32K Flash 50MHz 8051 1.71V to 5.5V Learn More about Infineon Technologies cypresspsoc3	Datasheet	186In Stock	$9.64 $7.50 $6.64 $6.37 View $6.08 $5.91 $5.68 Quote	Min.: 1 Mult.: 1	8051	32 kB	4 kB	QFN-48	50 MHz	12 bit	29 I/O	1.71 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 85 C	CY8C3245		Tray
8-bit Microcontrollers - MCU 32K Flash 50MHz 8051 1.71V to 5.5V CY8C3445PVI-094 Infineon Technologies 1: $12.34 134In Stock	Mfr. Part No. CY8C3445PVI-094 Mouser Part No 727-CY8C3445PVI-094	Infineon Technologies	8-bit Microcontrollers - MCU 32K Flash 50MHz 8051 1.71V to 5.5V Learn More about Infineon Technologies cypresspsoc3	Datasheet	134In Stock	$12.34 $11.02 $8.52 $8.42 View $8.09 $7.51 $7.32 Quote	Min.: 1 Mult.: 1	8051	32 kB	4 kB	SSOP-48	50 MHz	12 bit	29 I/O	1.71 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 85 C	CY8C3445		Tube
8-bit Microcontrollers - MCU 64K Flash 50MHz 8051 1.71V to 5.5V CY8C3446AXI-099 Infineon Technologies 1: $17.06 242In Stock	Mfr. Part No. CY8C3446AXI-099 Mouser Part No 727-CY8C3446AXI-099	Infineon Technologies	8-bit Microcontrollers - MCU 64K Flash 50MHz 8051 1.71V to 5.5V Learn More about Infineon Technologies cypresspsoc3	Datasheet	242In Stock	$17.06 $12.96 $12.42 $10.94 View $10.41 $10.06 $9.74 Quote	Min.: 1 Mult.: 1	8051	64 kB	8 kB	TQFP-100	50 MHz	12 bit	72 I/O	1.71 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 85 C	CY8C3446		Tray
8-bit Microcontrollers - MCU 8051 25 MHz 32 kB 8-bit MCU C8051F005-GQ Silicon Labs 1: $35.36 174In Stock 800Expected 22/01/2027 End of Life	Mfr. Part No. C8051F005-GQ Mouser Part No 634-C8051F005-GQ End of Life	Silicon Labs	8-bit Microcontrollers - MCU 8051 25 MHz 32 kB 8-bit MCU	Datasheet	174In Stock 800Expected 22/01/2027	$35.36 $29.54 $26.69 $25.20	Min.: 1 Mult.: 1	8051	32 kB	2.25 kB	TQFP-64	25 MHz	12 bit	32 I/O	2.7 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 85 C	C8051F005		Tray
8-bit Microcontrollers - MCU 8051 25 MHz 32 kB 8-bit MCU C8051F005-GQR Silicon Labs 1: $34.51 234In Stock End of Life	Mfr. Part No. C8051F005-GQR Mouser Part No 634-C8051F005-GQR End of Life	Silicon Labs	8-bit Microcontrollers - MCU 8051 25 MHz 32 kB 8-bit MCU	Datasheet	234In Stock	Cut Tape $34.51 $27.94 $26.30 $25.21 $23.63 Reel $23.63	Min.: 1 Mult.: 1 : 500	8051	32 kB	2.25 kB	TQFP-64	25 MHz	12 bit	32 I/O	2.7 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 85 C	C8051F005		Reel, Cut Tape
8-bit Microcontrollers - MCU 8051 25 MHz 64 kB 8-bit MCU C8051F021-GQR Silicon Labs 1: $43.28 278In Stock End of Life	Mfr. Part No. C8051F021-GQR Mouser Part No 634-C8051F021-GQR End of Life	Silicon Labs	8-bit Microcontrollers - MCU 8051 25 MHz 64 kB 8-bit MCU	Datasheet	278In Stock	Cut Tape $43.28 $35.52 $33.14 $32.62 $32.53 Reel $29.06 MouseReel Available	Min.: 1 Mult.: 1 : 500	8051	64 kB	4.35 kB	TQFP-64	25 MHz	8 bit, 12 bit	32 I/O	2.7 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 85 C	C8051F021		Reel, Cut Tape, MouseReel
8-bit Microcontrollers - MCU 8051 50 MHz 64 kB 5 V CAN LIN 8-bit MCU C8051F500-IM Silicon Labs 1: $13.14 181In Stock End of Life	Mfr. Part No. C8051F500-IM Mouser Part No 634-C8051F500-IM End of Life	Silicon Labs	8-bit Microcontrollers - MCU 8051 50 MHz 64 kB 5 V CAN LIN 8-bit MCU	Datasheet	181In Stock	$13.14 $11.45 $9.58 $8.80 View $8.75 $8.46 $8.35 Quote	Min.: 1 Mult.: 1	8051	64 kB	4.25 kB	QFN-48	50 MHz	12 bit	40 I/O	1.8 V	5.25 V	SMD/SMT	8 bit	- 40 C	+ 125 C	C8051F500	AEC-Q100	Tube
8-bit Microcontrollers - MCU 8051 25 MHz 8 kB 5 V LIN 8-bit MCU C8051F530-C-IM Silicon Labs 1: $5.78 777In Stock End of Life	Mfr. Part No. C8051F530-C-IM Mouser Part No 634-C8051F530-C-IM End of Life	Silicon Labs	8-bit Microcontrollers - MCU 8051 25 MHz 8 kB 5 V LIN 8-bit MCU	Datasheet	777In Stock	$5.78 $4.40 $4.06 $3.68 View $3.50 $3.45 $3.40	Min.: 1 Mult.: 1	8051	8 kB	256 B	QFN-20	25 MHz	12 bit	16 I/O	2 V	5.25 V	SMD/SMT	8 bit	- 40 C	+ 125 C	C8051F530	AEC-Q100	Tube
8-bit Microcontrollers - MCU High-Speed/Low-Power Microcontrollers DS80C320-MCG+ Analog Devices / Maxim Integrated 1: $33.48 98In Stock	Mfr. Part No. DS80C320-MCG+ Mouser Part No 700-DS80C320-MCG	Analog Devices / Maxim Integrated	8-bit Microcontrollers - MCU High-Speed/Low-Power Microcontrollers Learn More about Analog Devices / Maxim Integrated maxim hvac solutions	Datasheet	98In Stock	$33.48 $26.18 $25.00 $22.72 View $21.94 $21.44 Quote	Min.: 1 Mult.: 1	8051	64 kB	256 B	PDIP-40	25 MHz	No ADC	32 I/O	4.5 V	5.5 V	Through Hole	8 bit	0 C	+ 70 C	DS80C320		Tube
8-bit Microcontrollers - MCU High-Speed/Low-Power Microcontrollers DS80C320-MNG+ Analog Devices / Maxim Integrated 1: $40.53 128In Stock	Mfr. Part No. DS80C320-MNG+ Mouser Part No 700-DS80C320-MNG	Analog Devices / Maxim Integrated	8-bit Microcontrollers - MCU High-Speed/Low-Power Microcontrollers Learn More about Analog Devices / Maxim Integrated maxim hvac solutions	Datasheet	128In Stock	$40.53 $34.12 $32.59 $27.74 View $26.97 Quote	Min.: 1 Mult.: 1	8051	64 kB	256 B	PDIP-40	25 MHz	No ADC	32 I/O	4.5 V	5.5 V	Through Hole	8 bit	- 40 C	+ 85 C	DS80C320		Tube
8-bit Microcontrollers - MCU High-Speed/Low-Power Microcontrollers DS80C320-MNL+ Analog Devices / Maxim Integrated 1: $46.11 8In Stock	Mfr. Part No. DS80C320-MNL+ Mouser Part No 700-DS80C320-MNL	Analog Devices / Maxim Integrated	8-bit Microcontrollers - MCU High-Speed/Low-Power Microcontrollers Learn More about Analog Devices / Maxim Integrated maxim hvac solutions	Datasheet	8In Stock	$46.11 $37.85 $34.74 $32.65 View $31.83 Quote	Min.: 1 Mult.: 1	8051	64 kB	256 B	PDIP-40	33 MHz	No ADC	32 I/O	4.5 V	5.5 V	Through Hole	8 bit	- 40 C	+ 85 C	DS80C320		Tube
8-bit Microcontrollers - MCU High-Speed/Low-Power Microcontrollers DS80C323-ECD+ Analog Devices / Maxim Integrated 1: $17.34 208In Stock	Mfr. Part No. DS80C323-ECD+ Mouser Part No 700-DS80C323-ECD	Analog Devices / Maxim Integrated	8-bit Microcontrollers - MCU High-Speed/Low-Power Microcontrollers Learn More about Analog Devices / Maxim Integrated maxim hvac solutions	Datasheet	208In Stock	$17.34 $13.18 $12.63 $11.13 View $10.04 $9.72 $9.43 Quote	Min.: 1 Mult.: 1	8051	64 kB	256 B	TQFP-44	18 MHz	No ADC	32 I/O	2.7 V	5.5 V	SMD/SMT	8 bit	0 C	+ 70 C	DS80C323		Tray
8-bit Microcontrollers - MCU High-Speed/Low-Power Microcontrollers DS80C323-QCD+ Analog Devices / Maxim Integrated 1: $16.93 56In Stock	Mfr. Part No. DS80C323-QCD+ Mouser Part No 700-DS80C323-QCD	Analog Devices / Maxim Integrated	8-bit Microcontrollers - MCU High-Speed/Low-Power Microcontrollers Learn More about Analog Devices / Maxim Integrated maxim hvac solutions	Datasheet	56In Stock	$16.93 $12.87 $12.33 $10.86 View $9.97 $9.59 $9.24 Quote	Min.: 1 Mult.: 1	8051	64 kB	256 B	PLCC-44	18 MHz	No ADC	32 I/O	2.7 V	5.5 V	SMD/SMT	8 bit	0 C	+ 70 C	DS80C323		Tube
8-bit Microcontrollers - MCU Dual CAN High-Speed Microprocessor DS80C390-FNR+ Analog Devices / Maxim Integrated 1: $59.75 214In Stock	Mfr. Part No. DS80C390-FNR+ Mouser Part No 700-DS80C390-FNR	Analog Devices / Maxim Integrated	8-bit Microcontrollers - MCU Dual CAN High-Speed Microprocessor	Datasheet	214In Stock	$59.75 $49.72 $49.28 $46.16 View $42.81 Quote	Min.: 1 Mult.: 1	8051	4 kB	4 kB	LQFP-64	40 MHz	No ADC	32 I/O	3.85 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 85 C	DS80C390		Tray
8-bit Microcontrollers - MCU EPROM/ROM High-Speed Microcontrollers DS87C520-QCL+ Analog Devices / Maxim Integrated 1: $71.08 192In Stock	Mfr. Part No. DS87C520-QCL+ Mouser Part No 700-DS87C520-QCL	Analog Devices / Maxim Integrated	8-bit Microcontrollers - MCU EPROM/ROM High-Speed Microcontrollers Learn More about Analog Devices / Maxim Integrated maxim hvac solutions	Datasheet	192In Stock	$71.08 $59.15 $58.62 $54.91 View Quote	Min.: 1 Mult.: 1	8051	16 kB	1 kB	PLCC-44	33 MHz	No ADC	32 I/O	4.5 V	5.5 V	SMD/SMT	8 bit	0 C	+ 70 C	DS87C520		Tube
8-bit Microcontrollers - MCU Ultra-High-Speed Flash Microcontrollers DS89C450-ENL+ Analog Devices / Maxim Integrated 1: $49.72 85In Stock	Mfr. Part No. DS89C450-ENL+ Mouser Part No 700-DS89C450-ENL	Analog Devices / Maxim Integrated	8-bit Microcontrollers - MCU Ultra-High-Speed Flash Microcontrollers	Datasheet	85In Stock	$49.72 $40.82 $39.51 $37.02 View $36.24 Quote	Min.: 1 Mult.: 1	8051	64 kB	1 kB	TQFP-44	33 MHz	No ADC	32 I/O	4.5 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 85 C	DS89C450		Tray
8-bit Microcontrollers - MCU 8051 50 MHz 16 kB LFO 8-bit MCU C8051F392-A-GM Silicon Labs 1: $4.34 395In Stock 1,911Expected 02/11/2026 NRND	Mfr. Part No. C8051F392-A-GM Mouser Part No 634-C8051F392-A-GM NRND	Silicon Labs	8-bit Microcontrollers - MCU 8051 50 MHz 16 kB LFO 8-bit MCU Learn More about Silicon Labs siliconlabs c8051f37x	Datasheet	395In Stock 1,911Expected 02/11/2026	$4.34 $3.27 $3.00 $2.71 View $2.57 $2.55 $2.40 $2.34	Min.: 1 Mult.: 1	8051	16 kB	1 kB	QFN-20	50 MHz	10 bit	17 I/O	1.8 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 105 C	C8051F392		Tube
8-bit Microcontrollers - MCU 16KB Flash ROM, 1KB SRAM, 1 CHs of SPI,1T/8051 ML51BB9AE Nuvoton 1: $0.86 775In Stock	Mfr. Part No. ML51BB9AE Mouser Part No 503-ML51BB9AE	Nuvoton	8-bit Microcontrollers - MCU 16KB Flash ROM, 1KB SRAM, 1 CHs of SPI,1T/8051 Learn More about Nuvoton ml51 numicro mcus	Datasheet	775In Stock	$0.86 $0.74 $0.625 $0.59 View $0.536 $0.522 $0.503 $0.497	Min.: 1 Mult.: 1	8051	16 kB	1 kB	MSOP-10	24 MHz	12 bit	7 I/O	1.8 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 105 C			Tube
8-bit Microcontrollers - MCU 16KB Flash ROM, 1KB SRAM, 1 CHs of SPI,1T/8051 ML51FB9AE Nuvoton 1: $0.99 555In Stock	Mfr. Part No. ML51FB9AE Mouser Part No 503-ML51FB9AE	Nuvoton	8-bit Microcontrollers - MCU 16KB Flash ROM, 1KB SRAM, 1 CHs of SPI,1T/8051 Learn More about Nuvoton ml51 numicro mcus	Datasheet	555In Stock	$0.99 $0.847 $0.721 $0.68 View $0.618 $0.604 $0.582 $0.575	Min.: 1 Mult.: 1	8051	16 kB	1 kB	TSSOP-20	24 MHz	12 bit	16 I/O	1.8 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 105 C			Tube