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8051 microcontroller 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.	Mounting Style	Package/Case	Core	Program Memory Size	Data Bus Width	ADC Resolution	Maximum Clock Frequency	Number of I/Os	Data RAM Size	Supply Voltage - Min	Supply Voltage - Max	Minimum Operating Temperature	Maximum Operating Temperature	Packaging
8-bit Microcontrollers - MCU 16K Flash 50MHz 8051 1.71V to 5.5V CY8C3244AXI-153 Infineon Technologies 1: $15.34 33In Stock	Mfr. Part No. CY8C3244AXI-153 Mouser Part No 727-CY8C3244AXI-153	Infineon Technologies	8-bit Microcontrollers - MCU 16K Flash 50MHz 8051 1.71V to 5.5V Learn More about Infineon Technologies cypresspsoc3	Datasheet	33In Stock	$15.34 $11.94 $10.84 $8.72 View $8.68 $8.13 $7.92 Quote	Min.: 1 Mult.: 1	SMD/SMT	TQFP-100	8051	16 kB	8 bit	12 bit	50 MHz	70 I/O	2 kB	1.71 V	5.5 V	- 40 C	+ 85 C	Tray
8-bit Microcontrollers - MCU 8051 50 MHz 32 kB flash 2.25 kB RAM 8-bit Busy Bee MCU EFM8BB31F32G-D-QFN32 Silicon Labs 1: $3.13 457In Stock	Mfr. Part No. EFM8BB31F32G-D-QFN32 Mouser Part No 634-EF8BB31F32GDQN32	Silicon Labs	8-bit Microcontrollers - MCU 8051 50 MHz 32 kB flash 2.25 kB RAM 8-bit Busy Bee MCU Learn More about Silicon Labs siliconlabs efm8 busy bee	Datasheet	457In Stock	$3.13 $2.31 $2.11 $1.88 View $1.78 $1.71 $1.66 $1.62 $1.56	Min.: 1 Mult.: 1	SMD/SMT	QFN-32	CIP-51 8051	32 kB	8 bit	10 bit, 12 bit	50 MHz	29 I/O	2.3 kB	2.2 V	3.6 V	- 40 C	+ 85 C	Tray
8-bit Microcontrollers - MCU 64K Flash 50MHz 8051 1.71V to 5.5V CY8C3246LTI-125 Infineon Technologies 1: $16.46 1,091In Stock	Mfr. Part No. CY8C3246LTI-125 Mouser Part No 727-CY8C3246LTI-125	Infineon Technologies	8-bit Microcontrollers - MCU 64K Flash 50MHz 8051 1.71V to 5.5V Learn More about Infineon Technologies cypresspsoc3	Datasheet	1,091In Stock	$16.46 $12.89 $11.46 $11.03 View $10.54 $10.25 $9.89 Quote	Min.: 1 Mult.: 1	SMD/SMT	QFN-48	8051	64 kB	8 bit	12 bit	50 MHz	31 I/O	8 kB	1.71 V	5.5 V	- 40 C	+ 85 C	Tray
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 25 GPIO BB5 8-bit MCU EFM8BB52F16I-C-TSSOP28R Silicon Labs 1: $1.62 2,435In Stock	Mfr. Part No. EFM8BB52F16I-C-TSSOP28R Mouser Part No 634-EFM852F16ITOP28R	Silicon Labs	8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 25 GPIO BB5 8-bit MCU Learn More about Silicon Labs silabs efm8bb51 efm8bb52 busy bee mcus	Datasheet	2,435In Stock	Cut Tape $1.62 $1.18 $1.07 $0.944 Reel $0.789 View $0.885 $0.849 $0.812 $0.77	Min.: 1 Mult.: 1 : 2,500	SMD/SMT	TSSOP-28		16 kB				16 I/O	1.28 kB	1.8 V	5.5 V	- 40 C	+ 85 C	Reel, Cut Tape
8-bit Microcontrollers - MCU Low Pin Count 8051 Series; 2.4V to 5.5V; -40 to 85 N76E003AQ20 Nuvoton 1: $2.03 1,016In Stock	Mfr. Part No. N76E003AQ20 Mouser Part No 503-N76E003AQ20	Nuvoton	8-bit Microcontrollers - MCU Low Pin Count 8051 Series; 2.4V to 5.5V; -40 to 85	Datasheet	1,016In Stock	Cut Tape $2.03 $1.29 $1.15 $0.948 Reel $0.627 View $0.827 $0.783 $0.673 $0.62 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	QFN-20	8051	18 kB	8 bit	12 bit	16 MHz	18 I/O	256 B	2.4 V	5.5 V	- 40 C	+ 105 C	Reel, Cut Tape, MouseReel
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 8 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU EFM8BB51F8I-C-TSSOP20 Silicon Labs 1: $1.55 166In Stock	Mfr. Part No. EFM8BB51F8I-C-TSSOP20 Mouser Part No 634-EFM851F8ICTSOP20	Silicon Labs	8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 8 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU Learn More about Silicon Labs silabs efm8bb51 efm8bb52 busy bee mcus	Datasheet	166In Stock	$1.55 $1.12 $1.01 $0.888 View $0.83 $0.794 $0.77 $0.736 $0.717	Min.: 1 Mult.: 1	SMD/SMT	TSSOP-20		8 kB				16 I/O	1.28 kB	1.8 V	5.5 V	- 40 C	+ 125 C	Cut Tape
8-bit Microcontrollers - MCU 8051 75 MHz 16 kB flash 1.25 kB RAM 8-bit Laser Bee MCU EFM8LB11F16E-C-QFN24 Silicon Labs 1: $3.29 2,259In Stock	Mfr. Part No. EFM8LB11F16E-C-QFN24 Mouser Part No 634-LB11F16ECQFN24	Silicon Labs	8-bit Microcontrollers - MCU 8051 75 MHz 16 kB flash 1.25 kB RAM 8-bit Laser Bee MCU Learn More about Silicon Labs silabs efm8 laser bee	Datasheet	2,259In Stock	$3.29 $2.43 $2.22 $1.99 View $1.88 $1.82 $1.77 $1.69 $1.65	Min.: 1 Mult.: 1	SMD/SMT	QFN-24	CIP-51 8051	16 kB	8 bit	10 bit/12 bit/14 bit	72 MHz	20 I/O	1.25 kB	2.2 V	3.6 V	- 40 C	+ 105 C	Tube
8-bit Microcontrollers - MCU 64K Flash 50MHz 8051 1.71V to 5.5V CY8C3246PVI-147 Infineon Technologies 1: $16.29 371In Stock	Mfr. Part No. CY8C3246PVI-147 Mouser Part No 727-CY8C3246PVI-147	Infineon Technologies	8-bit Microcontrollers - MCU 64K Flash 50MHz 8051 1.71V to 5.5V Learn More about Infineon Technologies cypresspsoc3	Datasheet	371In Stock	$16.29 $15.37 $11.22 $10.80 View $10.50 $10.08 $9.83 Quote	Min.: 1 Mult.: 1	SMD/SMT	SSOP-48	8051	64 kB	8 bit	12 bit	50 MHz	31 I/O	8 kB	1.71 V	5.5 V	- 40 C	+ 85 C	Tube
8-bit Microcontrollers - MCU 8051 75 MHz 32 kB flash 2.25 kB RAM 8-bit Laser Bee MCU EFM8LB11F32E-C-QFN24 Silicon Labs 1: $3.79 723In Stock	Mfr. Part No. EFM8LB11F32E-C-QFN24 Mouser Part No 634-LB11F32ECQFN24	Silicon Labs	8-bit Microcontrollers - MCU 8051 75 MHz 32 kB flash 2.25 kB RAM 8-bit Laser Bee MCU Learn More about Silicon Labs silabs efm8 laser bee	Datasheet	723In Stock	$3.79 $2.82 $2.58 $2.31 View $2.19 $2.14 $2.05 $1.74	Min.: 1 Mult.: 1	SMD/SMT	QFN-24	CIP-51 8051	32 kB	8 bit	10 bit/12 bit/14 bit	72 MHz	20 I/O	2.25 kB	2.2 V	3.6 V	- 40 C	+ 105 C	Tube
8-bit Microcontrollers - MCU 8051 48 MHz 32 kB flash 2 kB RAM 8-bit Universal Bee MCU EFM8UB20F32G-B-QFN32 Silicon Labs 1: $4.43 587In Stock NRND	Mfr. Part No. EFM8UB20F32G-B-QFN32 Mouser Part No 634-EFM8UBF32GBQFN32 NRND	Silicon Labs	8-bit Microcontrollers - MCU 8051 48 MHz 32 kB flash 2 kB RAM 8-bit Universal Bee MCU	Datasheet	587In Stock	$4.43 $3.50 $3.11 $2.87 View $2.71 $2.65 $2.61 $2.49 $2.46	Min.: 1 Mult.: 1	SMD/SMT	QFN-32	CIP-51 8051	32 kB	8 bit	10 bit	48 MHz	25 I/O	2.25 kB	3.3 V	3.3 V	- 40 C	+ 85 C	Tube
8-bit Microcontrollers - MCU Sngl-Cycle 8051 IND 2.4-3.6V 32K ISP FL AT89LP3240-20MU Microchip Technology 1: $6.46 315In Stock	Mfr. Part No. AT89LP3240-20MU Mouser Part No 556-AT89LP3240-20MU	Microchip Technology	8-bit Microcontrollers - MCU Sngl-Cycle 8051 IND 2.4-3.6V 32K ISP FL	Datasheet	315In Stock	$6.46 $5.94 $5.39	Min.: 1 Mult.: 1	SMD/SMT	VQFN-44	8051	32 kB	8 bit	10 bit	20 MHz	38 I/O	4.25 kB	2.4 V	3.6 V	- 40 C	+ 85 C	Tray
8-bit Microcontrollers - MCU 32K FLASH 4.0 TO 5.5V AT89C51RC-24AU Microchip Technology 1: $4.28 3,742In Stock	Mfr. Part No. AT89C51RC-24AU Mouser Part No 556-A89C51RC-24AU	Microchip Technology	8-bit Microcontrollers - MCU 32K FLASH 4.0 TO 5.5V Learn More about Microchip Technology microchip at89c51 mcus	Datasheet	3,742In Stock	$4.28 $3.93 $3.89	Min.: 1 Mult.: 1	SMD/SMT	TQFP-44	8051	32 kB	8 bit	No ADC	24 MHz	32 I/O	512 B	4 V	5.5 V	- 40 C	+ 85 C	Tray
8-bit Microcontrollers - MCU Single-Cycle 8051 8K ISP Flash MCU AT89LP52-20AU Microchip Technology 1: $2.34 2,754In Stock	Mfr. Part No. AT89LP52-20AU Mouser Part No 556-AT89LP52-20AU	Microchip Technology	8-bit Microcontrollers - MCU Single-Cycle 8051 8K ISP Flash MCU Learn More about Microchip Technology atmelat89lp52	Datasheet	2,754In Stock	$2.34 $2.12 $1.93	Min.: 1 Mult.: 1	SMD/SMT	TQFP-44	8051	8 kB	8 bit	No ADC	20 MHz	36 I/O	256 B	2.4 V	5.5 V	- 40 C	+ 85 C	Tray
8-bit Microcontrollers - MCU 8051 25 MHz 8 kB flash 0.5 kB RAM 8-bit Busy Bee MCU EFM8BB10F8G-A-QFN20R Silicon Labs 1: $1.25 54,906In Stock 10,500On Order	Mfr. Part No. EFM8BB10F8G-A-QFN20R Mouser Part No 634-8BB10F8GAQF20R	Silicon Labs	8-bit Microcontrollers - MCU 8051 25 MHz 8 kB flash 0.5 kB RAM 8-bit Busy Bee MCU Learn More about Silicon Labs siliconlabs efm8 busy bee	Datasheet	54,906In Stock 10,500On Order On Order Ship Dates Mfr. No: EFM8BB10F8G-A-QFN20R Stock: 54,906 Can Dispatch Immediately On Order: 1,500 Pending 9,000 Expected 13/11/2026 Factory Lead Time: 12 Weeks	Cut Tape $1.25 $1.06 $0.87 $0.813 View Reel $0.68 $0.718 $0.698 $0.68 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	SMD/SMT	QFN-20	CIP-51 8051	8 kB	8 bit	12 bit	25 MHz	16 I/O	512 B	2.2 V	3.6 V	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel
8-bit Microcontrollers - MCU 8051 4K FLASH 2.7 TO 5.5V 24MHZ 4V-5.5V AT89C4051-24PU Microchip Technology 1: $2.88 2,246In 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	2,246In Stock	$2.88 $2.64 $2.39	Min.: 1 Mult.: 1	Through Hole	PDIP-20	8051	4 kB	8 bit	No ADC	24 MHz	15 I/O	128 B	4 V	6 V	- 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	SMD/SMT	PLCC-44	8051	8 kB	8 bit	No ADC	20 MHz	36 I/O	256 B	2.4 V	5.5 V	- 40 C	+ 85 C	Tube
8-bit Microcontrollers - MCU 8051 25 MHz 8 kB flash 0.5 kB RAM 8-bit Sleepy Bee MCU EFM8SB10F8G-A-QFN24R Silicon Labs 1: $2.38 3,031In Stock	Mfr. Part No. EFM8SB10F8G-A-QFN24R Mouser Part No 634-8SB10F8GAQF24R	Silicon Labs	8-bit Microcontrollers - MCU 8051 25 MHz 8 kB flash 0.5 kB RAM 8-bit Sleepy Bee MCU	Datasheet	3,031In Stock	Cut Tape $2.38 $1.88 $1.67 $1.52 Reel $1.27 View $1.47 $1.37 $1.32 $1.26 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	SMD/SMT		CIP-51 8051	8 kB	8 bit	12 bit	25 MHz	17 I/O	512 B	1.8 V	3.6 V	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel
8-bit Microcontrollers - MCU 8051 25 MHz 2 kB flash 0.25 kB RAM 8-bit Sleepy Bee MCU EFM8SB10F2G-A-QFN20 Silicon Labs 1: $1.81 7,303In Stock	Mfr. Part No. EFM8SB10F2G-A-QFN20 Mouser Part No 634-8SB10F2GAQF20	Silicon Labs	8-bit Microcontrollers - MCU 8051 25 MHz 2 kB flash 0.25 kB RAM 8-bit Sleepy Bee MCU Learn More about Silicon Labs silabs efm8 sleepy bee	Datasheet	7,303In Stock	$1.81 $1.40 $1.25 $1.11 View $1.07 $1.02 $0.994 $0.96 $0.914	Min.: 1 Mult.: 1	SMD/SMT	QFN-20	CIP-51 8051	2 kB	8 bit	12 bit	25 MHz	16 I/O	256 B	1.8 V	3.6 V	- 40 C	+ 85 C	Tube
8-bit Microcontrollers - MCU 64K Flash 50MHz 8051 1.71V to 5.5V CY8C3446LTI-073 Infineon Technologies 1: $19.73 2,600In Stock	Mfr. Part No. CY8C3446LTI-073 Mouser Part No 727-CY8C3446LTI-073	Infineon Technologies	8-bit Microcontrollers - MCU 64K Flash 50MHz 8051 1.71V to 5.5V Learn More about Infineon Technologies cypresspsoc3	Datasheet	2,600In Stock	$19.73 $16.09 $14.38 $13.83 View $13.25 $12.91 $12.76 Quote	Min.: 1 Mult.: 1	SMD/SMT	QFN-48	8051	64 kB	8 bit	12 bit	50 MHz	31 I/O	8 kB	1.71 V	5.5 V	- 40 C	+ 85 C	Tray
8-bit Microcontrollers - MCU 8051 25 MHz 2 kB flash 0.25 kB RAM 8-bit Sleepy Bee MCU EFM8SB10F2G-A-QFN20R Silicon Labs 1: $1.85 3,518In Stock 16,500Expected 4/12/2026	Mfr. Part No. EFM8SB10F2G-A-QFN20R Mouser Part No 634-8SB10F2GAQF20R	Silicon Labs	8-bit Microcontrollers - MCU 8051 25 MHz 2 kB flash 0.25 kB RAM 8-bit Sleepy Bee MCU	Datasheet	3,518In Stock 16,500Expected 4/12/2026	Cut Tape $1.85 $1.43 $1.26 $1.15 Reel $1.04 View $1.12 $1.04 $0.917 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	SMD/SMT	QFN-20	CIP-51 8051	2 kB	8 bit	12 bit	25 MHz	16 I/O	256 B	1.8 V	3.6 V	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 4 kB flash 0.5 kB RAM 12 GPIO BB5 8-bit MCU EFM8BB50F4I-A-SOIC16 Silicon Labs 1: $1.39 648In Stock	Mfr. Part No. EFM8BB50F4I-A-SOIC16 Mouser Part No 634-M8BB50F4IASOIC16	Silicon Labs	8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 4 kB flash 0.5 kB RAM 12 GPIO BB5 8-bit MCU Learn More about Silicon Labs efm8bb50 mcus	Datasheet	648In Stock	$1.39 $1.00 $0.90 $0.792 View $0.74 $0.709 $0.685 $0.656 $0.639	Min.: 1 Mult.: 1	SMD/SMT	SOIC-16		4 kB	8 bit	12 bit	50 MHz	12 I/O	512 B	1.8 V	5.5 V	- 40 C	+ 125 C	Tube
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 8 kB flash 0.5 kB RAM 12 GPIO BB5 8-bit MCU EFM8BB50F8G-A-SOIC16 Silicon Labs 1: $1.43 995In Stock	Mfr. Part No. EFM8BB50F8G-A-SOIC16 Mouser Part No 634-M8BB50F8GASOIC16	Silicon Labs	8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 8 kB flash 0.5 kB RAM 12 GPIO BB5 8-bit MCU Learn More about Silicon Labs efm8bb50 mcus	Datasheet	995In Stock	$1.43 $1.11 $0.987 $0.884 View $0.827 $0.792 $0.767 $0.732 $0.713	Min.: 1 Mult.: 1	SMD/SMT	SOIC-16		8 kB	8 bit	12 bit	50 MHz	12 I/O	512 B	1.8 V	5.5 V	- 40 C	+ 85 C	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	SMD/SMT	TQFP-44	8051	4 kB	8 bit	No ADC	20 MHz	36 I/O	256 B	2.4 V	5.5 V	- 40 C	+ 85 C	Tray
8-bit Microcontrollers - MCU 64K Flash 67MHz 8051 0.5V to 5.5V CY8C3866AXI-040 Infineon Technologies 1: $36.60 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	$36.60 $29.38 $25.77 $25.02 View $24.78 $24.03 Quote	Min.: 1 Mult.: 1	SMD/SMT	TQFP-100	8051	64 kB	8 bit	20 bit	67 MHz	72 I/O	8 kB	1.71 V	1.89 V	- 40 C	+ 85 C	Tray
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 32 kB flash 2.304 kB RAM 29 GPIO BB5 8-bit MCU EFM8BB52F32G-C-QFN32R Silicon Labs 1: $1.51 4,000In Stock	Mfr. Part No. EFM8BB52F32G-C-QFN32R Mouser Part No 634-EFM852F32GQFN32R	Silicon Labs	8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 32 kB flash 2.304 kB RAM 29 GPIO BB5 8-bit MCU Learn More about Silicon Labs silabs efm8bb51 efm8bb52 busy bee mcus	Datasheet	4,000In Stock	Cut Tape $1.51 $1.09 $0.982 $0.864 Reel $0.715 View $0.808 $0.772 $0.748 $0.698	Min.: 1 Mult.: 1 : 2,500	SMD/SMT	QFN-32		16 kB				16 I/O	1.28 kB	1.8 V	5.5 V	- 40 C	+ 85 C	Reel, Cut Tape