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8051 Core 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.	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	Qualification	Packaging
8-bit Microcontrollers - MCU 50 MIPS, 64 kB, 4 kB, CAN2.0, LIN 2.1, SPI, UART, I2C, QFN32 C8051F502-IMR Silicon Labs 1: $11.54 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 $11.54 $9.01 $8.38 $7.68 $7.31 Reel $7.22	Min.: 1 Mult.: 1 : 2,500			8051	8 bit						1.8 V	5.25 V			Reel, Cut Tape
8-bit Microcontrollers - MCU 32K Flash 50MHz 8051 1.71V to 5.5V CY8C3245LTI-163 Infineon Technologies 1: $9.75 533In Stock	Mfr. Part No. CY8C3245LTI-163 Mouser Part No 727-CY8C3245LTI-163	Infineon Technologies	8-bit Microcontrollers - MCU 32K Flash 50MHz 8051 1.71V to 5.5V Learn More about Infineon Technologies cypresspsoc3	Datasheet	533In Stock	$9.75 $7.59 $6.72 $6.45 View $6.15 $5.75 Quote	Min.: 1 Mult.: 1	SMD/SMT	QFN-68	8051	8 bit	50 MHz	32 kB	4 kB	12 bit	46 I/O	1.71 V	5.5 V	+ 85 C		Tray
8-bit Microcontrollers - MCU 64K Flash 50MHz 8051 1.71V to 5.5V CY8C3246AXI-131 Infineon Technologies 1: $14.80 666In Stock	Mfr. Part No. CY8C3246AXI-131 Mouser Part No 727-CY8C3246AXI-131	Infineon Technologies	8-bit Microcontrollers - MCU 64K Flash 50MHz 8051 1.71V to 5.5V Learn More about Infineon Technologies cypresspsoc3	Datasheet	666In Stock	$14.80 $11.49 $10.09 $9.76 View $9.34 $9.23 Quote	Min.: 1 Mult.: 1	SMD/SMT	TQFP-100	8051	8 bit	50 MHz	64 kB	8 kB	12 bit	70 I/O	1.71 V	5.5 V	+ 85 C		Tray
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	SMD/SMT	TQFP-100	8051	8 bit	50 MHz	64 kB	8 kB	12 bit	72 I/O	1.71 V	5.5 V	+ 85 C		Tray
8-bit Microcontrollers - MCU 64K Flash 67MHz 8051 0.5V to 5.5V CY8C3866AXI-040 Infineon Technologies 1: $26.91 297In Stock	Mfr. Part No. CY8C3866AXI-040 Mouser Part No 727-CY8C3866AXI-040	Infineon Technologies	8-bit Microcontrollers - MCU 64K Flash 67MHz 8051 0.5V to 5.5V Learn More about Infineon Technologies cypresspsoc3	Datasheet	297In Stock	$26.91 $21.60 $18.95 $18.40 View $18.22 $17.67 Quote	Min.: 1 Mult.: 1	SMD/SMT	TQFP-100	8051	8 bit	67 MHz	64 kB	8 kB	20 bit	72 I/O	1.71 V	1.89 V	+ 85 C		Tray
8-bit Microcontrollers - MCU 64K Flash 67MHz 8051 0.5V to 5.5V CY8C3866PVI-070 Infineon Technologies 1: $22.12 136In Stock	Mfr. Part No. CY8C3866PVI-070 Mouser Part No 727-CY8C3866PVI-070	Infineon Technologies	8-bit Microcontrollers - MCU 64K Flash 67MHz 8051 0.5V to 5.5V Learn More about Infineon Technologies cypresspsoc3	Datasheet	136In Stock	$22.12 $20.33 $15.73 $15.21 View $15.19 $14.39 Quote	Min.: 1 Mult.: 1	SMD/SMT	SSOP-48	8051	8 bit	67 MHz	64 kB	8 kB	20 bit	29 I/O	1.71 V	1.89 V	+ 85 C		Tube
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	SMD/SMT	TQFP-64	8051	8 bit	25 MHz	32 kB	2.25 kB	12 bit	32 I/O	2.7 V	3.6 V	+ 85 C		Reel, Cut Tape
8-bit Microcontrollers - MCU 8051 25 MHz 64 kB CAN 8-bit MCU C8051F045-GQ Silicon Labs 1: $21.95 566In Stock End of Life	Mfr. Part No. C8051F045-GQ Mouser Part No 634-C8051F045-GQ End of Life	Silicon Labs	8-bit Microcontrollers - MCU 8051 25 MHz 64 kB CAN 8-bit MCU	Datasheet	566In Stock	$21.95 $18.00 $16.88 $15.64 View $15.04 $14.71 $14.62	Min.: 1 Mult.: 1	SMD/SMT	TQFP-64	8051	8 bit	25 MHz	64 kB	4.25 kB	8 bit, 10 bit	32 I/O	2.7 V	3.6 V	+ 85 C		Tray
8-bit Microcontrollers - MCU 8051 100 MHz 128 kB MAC 8-bit MCU C8051F130-GQR Silicon Labs 1: $40.57 251In Stock End of Life	Mfr. Part No. C8051F130-GQR Mouser Part No 634-C8051F130-GQR End of Life	Silicon Labs	8-bit Microcontrollers - MCU 8051 100 MHz 128 kB MAC 8-bit MCU	Datasheet	251In Stock	Cut Tape $40.57 $32.85 $31.35 Reel $30.23 View Quote MouseReel Available	Min.: 1 Mult.: 1 : 250	SMD/SMT	TQFP-100	8051	8 bit	100 MHz	128 kB	8.25 kB		64 I/O	3 V	3.6 V	+ 85 C		Reel, Cut Tape, MouseReel
8-bit Microcontrollers - MCU EPROM/ROM High-Speed Microcontrollers DS87C520-MCL+ Analog Devices / Maxim Integrated 1: $83.63 263In Stock	Mfr. Part No. DS87C520-MCL+ Mouser Part No 700-DS87C520-MCL	Analog Devices / Maxim Integrated	8-bit Microcontrollers - MCU EPROM/ROM High-Speed Microcontrollers Learn More about Analog Devices / Maxim Integrated maxim hvac solutions	Datasheet	263In Stock	$83.63 $70.42 $69.81 $63.94 View Quote	Min.: 1 Mult.: 1	Through Hole	PDIP-40	8051	8 bit	33 MHz	16 kB	1 kB	No ADC	32 I/O	4.5 V	5.5 V	+ 70 C		Tube
8-bit Microcontrollers - MCU EPROM/ROM High-Speed Microcontrollers DS87C520-QNL+ Analog Devices / Maxim Integrated 1: $85.10 334In Stock	Mfr. Part No. DS87C520-QNL+ Mouser Part No 700-DS87C520-QNL	Analog Devices / Maxim Integrated	8-bit Microcontrollers - MCU EPROM/ROM High-Speed Microcontrollers Learn More about Analog Devices / Maxim Integrated maxim hvac solutions	Datasheet	334In Stock	$85.10 $71.67 $71.05 $65.07 View Quote	Min.: 1 Mult.: 1	SMD/SMT	PLCC-44	8051	8 bit	33 MHz	16 kB	1 kB	No ADC	32 I/O	4.5 V	5.5 V	+ 85 C		Tube
8-bit Microcontrollers - MCU Ultra-High-Speed Flash Microcontrollers DS89C430-ENG+ Analog Devices / Maxim Integrated 1: $36.59 126In Stock	Mfr. Part No. DS89C430-ENG+ Mouser Part No 700-DS89C430-ENG	Analog Devices / Maxim Integrated	8-bit Microcontrollers - MCU Ultra-High-Speed Flash Microcontrollers	Datasheet	126In Stock	$36.59 $30.82 $29.43 $26.32 View $25.68 Quote	Min.: 1 Mult.: 1	SMD/SMT	TQFP-44	8051	8 bit	33 MHz	16 kB	1 kB	No ADC	32 I/O	4.5 V	5.5 V	+ 85 C		Tray
8-bit Microcontrollers - MCU Ultra-High-Speed Flash Microcontrollers DS89C430-MNL+ Analog Devices / Maxim Integrated 1: $41.20 74In Stock	Mfr. Part No. DS89C430-MNL+ Mouser Part No 700-DS89C430-MNL	Analog Devices / Maxim Integrated	8-bit Microcontrollers - MCU Ultra-High-Speed Flash Microcontrollers	Datasheet	74In Stock	$41.20 $34.60 $31.71 $29.83 View $28.76 Quote	Min.: 1 Mult.: 1	Through Hole	PDIP-40	8051	8 bit	33 MHz	16 kB	1 kB	No ADC	32 I/O	4.5 V	5.5 V	+ 85 C		Tube
8-bit Microcontrollers - MCU Automotive MCU with 2KB SRAM and 32Kx16 ECC E-Flash, QFN-24 (4mm x 4mm) IS32CS8974A-QWLCA3-TR Lumissil 1: $1.29 2,450In Stock New Product	Mfr. Part No. IS32CS8974A-QWLCA3-TR Mouser Part No 870-32CS8974AQWLA3TR New Product	Lumissil	8-bit Microcontrollers - MCU Automotive MCU with 2KB SRAM and 32Kx16 ECC E-Flash, QFN-24 (4mm x 4mm) Learn More about Lumissil is3xcs8974 mcus	Datasheet	2,450In Stock	Cut Tape $1.29 $1.10 $0.96 $0.907 Reel $0.715 View $0.804 $0.787 $0.70	Min.: 1 Mult.: 1 : 2,500	SMD/SMT	WQFN-24	8051	8 bit	25 MHz	32 KB	2 KB		20 I/O	2.5 V	5.5 V	+ 125 C		Reel, Cut Tape
8-bit Microcontrollers - MCU 8KB,24ADC,28Pin MCU C8051F351-GM Silicon Labs 1: $16.04 978In Stock NRND	Mfr. Part No. C8051F351-GM Mouser Part No 634-C8051F351-GM NRND	Silicon Labs	8-bit Microcontrollers - MCU 8KB,24ADC,28Pin MCU	Datasheet	978In Stock	$16.04 $12.56 $11.66 $10.74 View $10.64 $9.97 $9.79 Quote	Min.: 1 Mult.: 1	SMD/SMT	QFN-28	8051	8 bit	50 MHz	8 kB	768 B	24 bit	17 I/O	2.7 V	3.6 V	+ 85 C		Tube
8-bit Microcontrollers - MCU 8051 50 MHz 16 kB 8-bit MCU C8051F390-A-GM Silicon Labs 1: $4.37 997In Stock NRND	Mfr. Part No. C8051F390-A-GM Mouser Part No 634-C8051F390-A-GM NRND	Silicon Labs	8-bit Microcontrollers - MCU 8051 50 MHz 16 kB 8-bit MCU Learn More about Silicon Labs siliconlabs c8051f37x	Datasheet	997In Stock	$4.37 $3.30 $3.03 $2.73 View $2.59 $2.58 $2.42 $2.36	Min.: 1 Mult.: 1	SMD/SMT	QFN-24	8051	8 bit	50 MHz	16 kB	1 kB	10 bit	21 I/O	1.8 V	3.6 V	+ 105 C		Tube
8-bit Microcontrollers - MCU 8051 50 MHz 64 kB 5 V CAN LIN 8-bit MCU C8051F502-IM Silicon Labs 1: $11.71 548In Stock NRND	Mfr. Part No. C8051F502-IM Mouser Part No 634-C8051F502-IM NRND	Silicon Labs	8-bit Microcontrollers - MCU 8051 50 MHz 64 kB 5 V CAN LIN 8-bit MCU	Datasheet	548In Stock	$11.71 $9.39 $8.46 $7.92 View $7.70 $7.40 $7.31 Quote	Min.: 1 Mult.: 1	SMD/SMT	QFN-32	8051	8 bit	50 MHz	64 kB	4.25 kB	12 bit	25 I/O	1.8 V	5.25 V	+ 125 C	AEC-Q100	Tube
8-bit Microcontrollers - MCU 8051 50 MHz 32 kB 5 V CAN LIN 8-bit MCU C8051F550-IM Silicon Labs 1: $9.25 1,814In Stock NRND	Mfr. Part No. C8051F550-IM Mouser Part No 634-C8051F550-IM NRND	Silicon Labs	8-bit Microcontrollers - MCU 8051 50 MHz 32 kB 5 V CAN LIN 8-bit MCU	Datasheet	1,814In Stock	$9.25 $7.17 $6.65 $6.07 View $5.80 $5.63 $5.48 $5.20	Min.: 1 Mult.: 1	SMD/SMT	QFN-24	8051	8 bit	50 MHz	32 kB	2.25 kB	12 bit	18 I/O	1.8 V	5.25 V	+ 125 C	AEC-Q100	Tube
8-bit Microcontrollers - MCU 8051 50 MHz 32 kB 5 V 8-bit MCU C8051F553-IM Silicon Labs 1: $8.90 Non-Stocked Lead-Time 12 Weeks NRND	Mfr. Part No. C8051F553-IM Mouser Part No 634-C8051F553-IM NRND	Silicon Labs	8-bit Microcontrollers - MCU 8051 50 MHz 32 kB 5 V 8-bit MCU	Datasheet	Non-Stocked Lead-Time 12 Weeks	$8.90 $7.11 $6.34 $5.92 View $5.77 $5.39 $4.87 $4.73	Min.: 1 Mult.: 1	SMD/SMT	QFN-24	8051	8 bit	50 MHz	32 kB	2.25 kB	12 bit	18 I/O	1.8 V	5.25 V	+ 125 C	AEC-Q100	Tube
8-bit Microcontrollers - MCU 16K Bytes Shared with LDROM MS51FB9AE Nuvoton 1: $1.87 5,276In Stock	Mfr. Part No. MS51FB9AE Mouser Part No 503-MS51FB9AE	Nuvoton	8-bit Microcontrollers - MCU 16K Bytes Shared with LDROM Learn More about Nuvoton ms51 industrial mcus	Datasheet	5,276In Stock	Cut Tape $1.87 $1.14 $0.959 Reel $0.959 $0.727 View $0.629 $0.552 $0.496 $0.425 $0.406	Min.: 1 Mult.: 1 : 74	SMD/SMT	TSSOP-20	8051	8 bit	24 MHz	16 kB	1 kB	12 bit	18 I/O	2.4 V	5.5 V	+ 105 C		Reel, Cut Tape
8-bit Microcontrollers - MCU 2kB Flash 128B RAM 24MHz 2.7V-6.0V AT89C2051-24PU Microchip Technology 1: $2.08 1,250In Stock	Mfr. Part No. AT89C2051-24PU Mouser Part No 556-A89C2051-24PU	Microchip Technology	8-bit Microcontrollers - MCU 2kB Flash 128B RAM 24MHz 2.7V-6.0V	Datasheet	1,250In Stock	$2.08 $1.91 $1.72	Min.: 1 Mult.: 1	Through Hole	PDIP-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 20 PINS 2K FLASH 12MHZ 2.7 - 5.5V AT89C2051-12PU Microchip Technology 1: $2.08 841In Stock	Mfr. Part No. AT89C2051-12PU Mouser Part No 556-A89C205112PU	Microchip Technology	8-bit Microcontrollers - MCU 20 PINS 2K FLASH 12MHZ 2.7 - 5.5V	Datasheet	841In Stock	$2.08 $1.91 $1.72	Min.: 1 Mult.: 1	Through Hole	PDIP-20	8051	8 bit	12 MHz	2 kB	128 B	No ADC	15 I/O	2.7 V	6 V	+ 85 C		Tube
8-bit Microcontrollers - MCU C5130A 32K Flash AT89C5131A-RDTUM Microchip Technology 1: $7.77 315In Stock 640Expected 21/06/2027	Mfr. Part No. AT89C5131A-RDTUM Mouser Part No 556-A89C5131ARDTUM	Microchip Technology	8-bit Microcontrollers - MCU C5130A 32K Flash	Datasheet	315In Stock 640Expected 21/06/2027	$7.77 $7.13 $6.44	Min.: 1 Mult.: 1	SMD/SMT	VQFP-64	8051	8 bit	48 MHz	32 kB	1 kB	No ADC	34 I/O	2.7 V	5.5 V	+ 85 C		Tray
8-bit Microcontrollers - MCU CAN-STICK Bootloader UART IND AT89C51CC01UA-SLSUM Microchip Technology 1: $9.57 937In Stock 999Expected 09/11/2026	Mfr. Part No. AT89C51CC01UA-SLSUM Mouser Part No 556-A89C51C01UASLSUM	Microchip Technology	8-bit Microcontrollers - MCU CAN-STICK Bootloader UART IND Learn More about Microchip Technology microchip at89c51 mcus	Datasheet	937In Stock 999Expected 09/11/2026	$9.57 $8.75 $7.94	Min.: 1 Mult.: 1	SMD/SMT	PLCC-44	8051	8 bit	40 MHz	32 kB	1.2 kB	10 bit	34 I/O	3 V	5.5 V	+ 85 C		Tube
8-bit Microcontrollers - MCU 4K ISP FLASH 2.7 TO 5.5V - 24MHz AT89S51-24AU Microchip Technology 1: $2.10 3,559In Stock	Mfr. Part No. AT89S51-24AU Mouser Part No 556-A89S51-24AU	Microchip Technology	8-bit Microcontrollers - MCU 4K ISP FLASH 2.7 TO 5.5V - 24MHz	Datasheet	3,559In Stock	$2.10 $1.93 $1.75	Min.: 1 Mult.: 1	SMD/SMT	TQFP-44	8051	8 bit	24 MHz	4 kB	128 B	No ADC	32 I/O	4 V	5.5 V	+ 85 C		Tray