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8051 Core 8-bit Microcontrollers - MCU

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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.	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 MCU 8-BIT AT80 CISC ROMless 3-5V AT80C51RD2-3CSUM Microchip Technology 1: $6.87 257In 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	257In Stock	$6.87 $6.30 $6.17	Min.: 1 Mult.: 1	8051	0 B	1.25 kB	PDIP-40	40 MHz	No ADC	32 I/O	2.7 V	5.5 V	Through Hole	8 bit	- 40 C	+ 85 C	80C		Tube
8-bit Microcontrollers - MCU 24MHZ, PLCC, IND TEMP, GREEN, 5V AT89C55WD-24JU Microchip Technology 1: $6.34 268In Stock 702Expected 9/11/2026	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 9/11/2026	$6.34 $5.83 $5.77	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: $2.34 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	$2.34 $2.12 $1.93	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: $8.02 139In 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	139In Stock	$8.02 $7.34 $6.65	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: $7.26 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	$7.26 $6.69 $6.04	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: $4.69 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	$4.69 $4.30 $4.24	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: $4.01 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 $4.01 $2.99 $2.73 $2.45 Reel $2.08 View $2.31 $2.26 $2.15 $2.04 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: $13.11 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	$13.11 $10.20 $9.03 $8.66 View $8.27 $8.04 $7.72 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: $16.78 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	$16.78 $14.99 $11.59 $11.45 View $11.00 $10.21 $9.96 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: $23.20 62In Stock 180Expected 9/11/2026	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	62In Stock 180Expected 9/11/2026	$23.20 $17.63 $16.89 $14.88 View $14.16 $13.68 $13.25 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: $48.09 174In Stock 800Expected 22/1/2027 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 22/1/2027	$48.09 $40.17 $36.30 $34.27	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: $46.93 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 $46.93 $38.00 $35.77 $34.29 $32.14 Reel $32.14	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: $58.86 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 $58.86 $48.31 $45.07 $44.36 $44.24 Reel $39.52 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: $17.87 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	$17.87 $15.57 $13.03 $11.97 View $11.90 $11.51 $11.36 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: $7.86 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	$7.86 $5.98 $5.52 $5.00 View $4.76 $4.69 $4.62	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: $45.53 128In 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	128In Stock	$45.53 $35.60 $34.00 $30.90 View $29.84 $29.16 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: $55.12 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	$55.12 $46.40 $44.32 $37.73 View $36.68 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: $62.71 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	$62.71 $51.48 $47.25 $44.40 View $43.29 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: $23.58 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	$23.58 $17.92 $17.18 $15.14 View $13.65 $13.22 $12.82 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: $23.02 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	$23.02 $17.50 $16.77 $14.77 View $13.56 $13.04 $12.57 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: $81.26 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	$81.26 $67.62 $67.02 $62.78 View $58.22 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: $96.67 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	$96.67 $80.44 $79.72 $74.68 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: $67.62 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	$67.62 $55.52 $53.73 $50.35 View $49.29 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: $5.90 395In Stock 1,911Expected 2/11/2026 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 2/11/2026	$5.90 $4.45 $4.08 $3.69 View $3.50 $3.47 $3.26 $3.18	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: $1.17 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	$1.17 $1.01 $0.85 $0.802 View $0.729 $0.71 $0.684 $0.676	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