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8051 microcontroller 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 8051 25 MHz 2 kB Flash 0.25 kB RAM 8-bit Busy Bee MCU EFM8BB10F2A-A-QFN20 Silicon Labs 2,520: $1.30 Non-Stocked Lead-Time 12 Weeks	Mfr. Part No. EFM8BB10F2A-A-QFN20 Mouser Part No 634-FM8BB10F2AAQFN20	Silicon Labs	8-bit Microcontrollers - MCU 8051 25 MHz 2 kB Flash 0.25 kB RAM 8-bit Busy Bee MCU Learn More about Silicon Labs siliconlabs efm8 busy bee	Datasheet	Non-Stocked Lead-Time 12 Weeks	$1.30 $1.26	Min.: 2,520 Mult.: 2,520	SMD/SMT	QFN-20	CIP-51 8051	8 bit	25 MHz	2 kB	256 B	12 bit	16 I/O	2.2 V	3.6 V	+ 125 C	AEC-Q100	Tube
8-bit Microcontrollers - MCU 8051 50 MHz 64 kB 8-bit MCU C8051F385-GM Silicon Labs 1: $6.74 257In Stock NRND	Mfr. Part No. C8051F385-GM Mouser Part No 634-C8051F385-GM NRND	Silicon Labs	8-bit Microcontrollers - MCU 8051 50 MHz 64 kB 8-bit MCU Learn More about Silicon Labs silabs usb mcus	Datasheet	257In Stock	$6.74 $5.22 $4.80 $4.39 View $4.18 $4.06 $4.01 $3.96	Min.: 1 Mult.: 1	SMD/SMT	QFN-32	8051	8 bit	48 MHz	64 kB	4.35 kB		25 I/O	2.7 V	5.25 V	+ 85 C		Tube
8-bit Microcontrollers - MCU 8051 75 MHz 32 kB flash 2.25 kB RAM 8-bit Laser Bee MCU EFM8LB12F32E-C-QFN32R Silicon Labs 2,500: $1.64 Non-Stocked Lead-Time 26 Weeks	Mfr. Part No. EFM8LB12F32E-C-QFN32R Mouser Part No 634-LB12F32ECQFN32R	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	Non-Stocked Lead-Time 26 Weeks	Reel $1.64	Min.: 2,500 Mult.: 2,500 : 2,500	SMD/SMT	QFN-32	CIP-51 8051	8 bit	72 MHz	32 kB	2.25 kB	10 bit/12 bit/14 bit	29 I/O	2.2 V	3.6 V	+ 105 C		Reel
8-bit Microcontrollers - MCU 16K Flash 50MHz 8051 1.71V to 5.5V CY8C3244LTI-123 Infineon Technologies 1: $10.57 Non-Stocked Lead-Time 10 Weeks	Mfr. Part No. CY8C3244LTI-123 Mouser Part No 727-CY8C3244LTI-123	Infineon Technologies	8-bit Microcontrollers - MCU 16K Flash 50MHz 8051 1.71V to 5.5V Learn More about Infineon Technologies cypresspsoc3	Datasheet	Non-Stocked Lead-Time 10 Weeks	$10.57 $8.17 $7.79 $6.76 View $6.46 $5.71 $5.48 Quote	Min.: 1 Mult.: 1	SMD/SMT	QFN-48	8051	8 bit	50 MHz	16 kB	2 kB	12 bit	29 I/O	1.71 V	5.5 V	+ 85 C		Tray
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 0.5 kB RAM 9 GPIO BB5 8-bit MCU EFM8BB50F16I-A-QFN12R Silicon Labs 1: $1.02 Non-Stocked Lead-Time 12 Weeks	Mfr. Part No. EFM8BB50F16I-A-QFN12R Mouser Part No 634-M8BB50F16IAFN12R	Silicon Labs	8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 0.5 kB RAM 9 GPIO BB5 8-bit MCU Learn More about Silicon Labs efm8bb50 mcus	Datasheet	Non-Stocked Lead-Time 12 Weeks	Cut Tape $1.02 $0.735 $0.662 $0.582 Reel $0.482 View $0.544 $0.521 $0.504 $0.47 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	QFN-12		8 bit	50 MHz	16 kB	512 B	12 bit	9 I/O	1.8 V	5.5 V	+ 125 C		Reel, Cut Tape, MouseReel
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 0.5 kB RAM 9 GPIO BB5 8-bit MCU EFM8BB50F16G-A-QFN12R Silicon Labs 3,000: $0.468 Non-Stocked Lead-Time 12 Weeks	Mfr. Part No. EFM8BB50F16G-A-QFN12R Mouser Part No 634-M8BB50F16GAFN12R	Silicon Labs	8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 0.5 kB RAM 9 GPIO BB5 8-bit MCU Learn More about Silicon Labs efm8bb50 mcus	Datasheet	Non-Stocked Lead-Time 12 Weeks	Reel $0.468 $0.456	Min.: 3,000 Mult.: 3,000 : 3,000	SMD/SMT	QFN-12		8 bit	50 MHz	16 kB	512 B	12 bit	9 I/O	1.8 V	5.5 V	+ 85 C		Reel
8-bit Microcontrollers - MCU 32K Flash 50MHz 8051 1.71V to 5.5V CY8C3245PVI-150 Infineon Technologies 1: $10.31 Non-Stocked Lead-Time 10 Weeks	Mfr. Part No. CY8C3245PVI-150 Mouser Part No 727-CY8C3245PVI-150	Infineon Technologies	8-bit Microcontrollers - MCU 32K Flash 50MHz 8051 1.71V to 5.5V Learn More about Infineon Technologies cypresspsoc3	Datasheet	Non-Stocked Lead-Time 10 Weeks	$10.31 $9.64 $7.04 $6.77 View $6.36 $6.15 Quote	Min.: 1 Mult.: 1	SMD/SMT	SSOP-48	8051	8 bit	50 MHz	32 kB	4 kB	12 bit	31 I/O	1.71 V	5.5 V	+ 85 C		Tube
8-bit Microcontrollers - MCU 8051 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU EFM8BB31F16I-D-QFP32R Silicon Labs 1: $2.44 Non-Stocked Lead-Time 26 Weeks	Mfr. Part No. EFM8BB31F16I-D-QFP32R Mouser Part No 634-EF8BB31F16IDP32R	Silicon Labs	8-bit Microcontrollers - MCU 8051 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU Learn More about Silicon Labs siliconlabs efm8 busy bee	Datasheet	Non-Stocked Lead-Time 26 Weeks	Cut Tape $2.44 $1.80 $1.64 $1.47 $1.38 Reel $1.34	Min.: 1 Mult.: 1 : 500	SMD/SMT	QFP-32	CIP-51 8051	8 bit	50 MHz	16 kB	2.3 kB	10 bit, 12 bit	28 I/O	2.2 V	3.6 V	+ 125 C		Reel, Cut Tape
8-bit Microcontrollers - MCU 8051 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU EFM8BB31F16A-D-4QFN24 Silicon Labs 1: $3.49 Non-Stocked Lead-Time 26 Weeks	Mfr. Part No. EFM8BB31F16A-D-4QFN24 Mouser Part No 634-EF8BB31F16AD4F24	Silicon Labs	8-bit Microcontrollers - MCU 8051 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU Learn More about Silicon Labs siliconlabs efm8 busy bee	Datasheet	Non-Stocked Lead-Time 26 Weeks	$3.49 $2.60 $2.38 $2.13 View $2.01 $1.97 $1.87	Min.: 1 Mult.: 1	SMD/SMT	QFN-24	CIP-51 8051	8 bit	50 MHz	16 kB	2.3 kB	10 bit, 12 bit	20 I/O	2.2 V	3.6 V	+ 125 C		Tube
8-bit Microcontrollers - MCU 32K Flash 50MHz 8051 1.71V to 5.5V CY8C3445LTI-079 Infineon Technologies 2,600: $7.83 Non-Stocked Lead-Time 10 Weeks	Mfr. Part No. CY8C3445LTI-079 Mouser Part No 727-CY8C3445LTI-079	Infineon Technologies	8-bit Microcontrollers - MCU 32K Flash 50MHz 8051 1.71V to 5.5V Learn More about Infineon Technologies cypresspsoc3	Datasheet	Non-Stocked Lead-Time 10 Weeks	$7.83 Quote Quote	Min.: 2,600 Mult.: 2,600	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 8051 50 MHz 64 kB flash 4.25 kB RAM 8-bit Busy Bee MCU EFM8BB31F64A-D-5QFN32R Silicon Labs 2,500: $2.34 Non-Stocked Lead-Time 26 Weeks	Mfr. Part No. EFM8BB31F64A-D-5QFN32R Mouser Part No 634-EF8BB31F64AD532R	Silicon Labs	8-bit Microcontrollers - MCU 8051 50 MHz 64 kB flash 4.25 kB RAM 8-bit Busy Bee MCU Learn More about Silicon Labs siliconlabs efm8 busy bee	Datasheet	Non-Stocked Lead-Time 26 Weeks	Reel $2.34	Min.: 2,500 Mult.: 2,500 : 2,500	SMD/SMT	QFN-32	CIP-51 8051	8 bit	50 MHz	64 kB	4.35 kB	10 bit, 12 bit	29 I/O	2.2 V	3.6 V	+ 125 C		Reel
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU EFM8BB52F16G-C-TSSOP20R Silicon Labs 2,500: $0.541 Non-Stocked Lead-Time 24 Weeks	Mfr. Part No. EFM8BB52F16G-C-TSSOP20R Mouser Part No 634-EFM852F16GTOP20R	Silicon Labs	8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU Learn More about Silicon Labs silabs efm8bb51 efm8bb52 busy bee mcus	Datasheet	Non-Stocked Lead-Time 24 Weeks	Reel $0.541 $0.527	Min.: 2,500 Mult.: 2,500 : 2,500	SMD/SMT	TSSOP-20				16 kB	1.28 kB		16 I/O	1.8 V	5.5 V	+ 85 C		Reel
8-bit Microcontrollers - MCU 8051 75 MHz 16 kB flash 1.25 kB RAM 8-bit Laser Bee MCU EFM8LB10F16E-C-QFN32R Silicon Labs 2,500: $1.20 Non-Stocked Lead-Time 26 Weeks	Mfr. Part No. EFM8LB10F16E-C-QFN32R Mouser Part No 634-LB10F16ECQFN32R	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	Non-Stocked Lead-Time 26 Weeks	Reel $1.20	Min.: 2,500 Mult.: 2,500 : 2,500	SMD/SMT	QFN-32	CIP-51 8051	8 bit	72 MHz	16 kB	1.25 kB	10 bit/12 bit/14 bit	29 I/O	2.2 V	3.6 V	+ 105 C		Reel
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 8 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU EFM8BB51F8G-C-TSSOP20R Silicon Labs 2,500: $0.526 Non-Stocked Lead-Time 24 Weeks	Mfr. Part No. EFM8BB51F8G-C-TSSOP20R Mouser Part No 634-EFM851F8GCTOP20R	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	Non-Stocked Lead-Time 24 Weeks	Reel $0.526 $0.513	Min.: 2,500 Mult.: 2,500 : 2,500	SMD/SMT	TSSOP-20				16 kB	1.28 kB		16 I/O	1.8 V	5.5 V	+ 85 C		Reel
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 8 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU EFM8BB51F8I-C-TSSOP20R Silicon Labs 2,500: $0.541 Non-Stocked Lead-Time 24 Weeks	Mfr. Part No. EFM8BB51F8I-C-TSSOP20R Mouser Part No 634-EFM851F8ICTOP20R	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	Non-Stocked Lead-Time 24 Weeks	Reel $0.541 $0.527	Min.: 2,500 Mult.: 2,500 : 2,500	SMD/SMT	TSSOP-20				16 kB	1.28 kB		16 I/O	1.8 V	5.5 V	+ 85 C		Reel
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 25 GPIO BB5 8-bit MCU EFM8BB52F16I-C-TSSOP28 Silicon Labs 1: $1.19 Non-Stocked Lead-Time 24 Weeks	Mfr. Part No. EFM8BB52F16I-C-TSSOP28 Mouser Part No 634-EFM852F16ITSOP28	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	Non-Stocked Lead-Time 24 Weeks	$1.19 $0.869 $0.786 $0.694 View $0.651 $0.624 $0.597 $0.58 $0.566	Min.: 1 Mult.: 1	SMD/SMT	TSSOP-28				16 kB	1.28 kB		16 I/O	1.8 V	5.5 V	+ 85 C		Cut Tape
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU EFM8BB51F16G-C-TSSOP20R Silicon Labs 1: $1.17 Non-Stocked Lead-Time 24 Weeks	Mfr. Part No. EFM8BB51F16G-C-TSSOP20R Mouser Part No 634-EFM851GCTSSOP20R	Silicon Labs	8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU Learn More about Silicon Labs silabs efm8bb51 efm8bb52 busy bee mcus	Datasheet	Non-Stocked Lead-Time 24 Weeks	Cut Tape $1.17 $0.847 $0.762 $0.67 Reel $0.555 View $0.627 $0.60 $0.581 $0.541	Min.: 1 Mult.: 1 : 2,500	SMD/SMT	TSSOP-20				16 kB	1.28 kB		16 I/O	1.8 V	5.5 V	+ 85 C		Reel, Cut Tape
8-bit Microcontrollers - MCU 8051 50 MHz 64 kB flash 4.25 kB RAM 8-bit Busy Bee MCU EFM8BB31F64I-D-QFN24R Silicon Labs 2,500: $1.52 Non-Stocked Lead-Time 26 Weeks	Mfr. Part No. EFM8BB31F64I-D-QFN24R Mouser Part No 634-EF8BB31F64IDF24R	Silicon Labs	8-bit Microcontrollers - MCU 8051 50 MHz 64 kB flash 4.25 kB RAM 8-bit Busy Bee MCU Learn More about Silicon Labs siliconlabs efm8 busy bee	Datasheet	Non-Stocked Lead-Time 26 Weeks	Reel $1.52 $1.49	Min.: 2,500 Mult.: 2,500 : 2,500	SMD/SMT	QFN-24	CIP-51 8051	8 bit	50 MHz	64 kB	4.35 kB	10 bit, 12 bit	20 I/O	2.2 V	3.6 V	+ 125 C		Reel
8-bit Microcontrollers - MCU 8051 75 MHz 32 kB flash 2.25 kB RAM 8-bit Laser Bee MCU EFM8LB11F32E-C-QFN32R Silicon Labs 2,500: $1.52 Non-Stocked Lead-Time 26 Weeks	Mfr. Part No. EFM8LB11F32E-C-QFN32R Mouser Part No 634-LB11F32ECQFN32R	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	Non-Stocked Lead-Time 26 Weeks	Reel $1.52	Min.: 2,500 Mult.: 2,500 : 2,500	SMD/SMT	QFN-32	CIP-51 8051	8 bit	72 MHz	32 kB	2.25 kB	10 bit/12 bit/14 bit	29 I/O	2.2 V	3.6 V	+ 105 C		Reel
8-bit Microcontrollers - MCU 8051 75 MHz 16 kB flash 1.25 kB RAM 8-bit Laser Bee MCU EFM8LB10F16E-C-QFN32 Silicon Labs 1: $2.70 Non-Stocked Lead-Time 26 Weeks	Mfr. Part No. EFM8LB10F16E-C-QFN32 Mouser Part No 634-LB10F16ECQFN32	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	Non-Stocked Lead-Time 26 Weeks	$2.70 $2.44 $2.18 $1.96 View $1.74 $1.53 $1.26 $1.06	Min.: 1 Mult.: 1	SMD/SMT	QFN-32	CIP-51 8051	8 bit	72 MHz	16 kB	1.25 kB	10 bit/12 bit/14 bit	29 I/O	2.2 V	3.6 V	+ 105 C		Tray
8-bit Microcontrollers - MCU 8051 75 MHz 16 kB flash 1.25 kB RAM 8-bit Laser Bee MCU EFM8LB10F16E-C-QFP32R Silicon Labs 500: $1.57 Non-Stocked Lead-Time 26 Weeks	Mfr. Part No. EFM8LB10F16E-C-QFP32R Mouser Part No 634-LB10F16ECQFP32R	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	Non-Stocked Lead-Time 26 Weeks	Reel $1.57	Min.: 500 Mult.: 500 : 500	SMD/SMT	QFP-32	CIP-51 8051	8 bit	72 MHz	16 kB	1.25 kB	10 bit/12 bit/14 bit	28 I/O	2.2 V	3.6 V	+ 105 C		Reel
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU EFM8BB52F16I-C-TSSOP20R Silicon Labs 2,500: $0.555 Non-Stocked Lead-Time 24 Weeks	Mfr. Part No. EFM8BB52F16I-C-TSSOP20R Mouser Part No 634-EFM852F16ITOP20R	Silicon Labs	8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU Learn More about Silicon Labs silabs efm8bb51 efm8bb52 busy bee mcus	Datasheet	Non-Stocked Lead-Time 24 Weeks	Reel $0.555 $0.541	Min.: 2,500 Mult.: 2,500 : 2,500	SMD/SMT	TSSOP-20				16 kB	1.28 kB		16 I/O	1.8 V	5.5 V	+ 85 C		Reel
8-bit Microcontrollers - MCU 8051 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU EFM8BB31F16A-D-4QFN24R Silicon Labs 2,500: $1.81 Non-Stocked Lead-Time 26 Weeks	Mfr. Part No. EFM8BB31F16A-D-4QFN24R Mouser Part No 634-EF8BB31F16AD424R	Silicon Labs	8-bit Microcontrollers - MCU 8051 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU Learn More about Silicon Labs siliconlabs efm8 busy bee	Datasheet	Non-Stocked Lead-Time 26 Weeks	Reel $1.81 $1.78	Min.: 2,500 Mult.: 2,500 : 2,500	SMD/SMT	QFN-24	CIP-51 8051	8 bit	50 MHz	16 kB	2.3 kB	10 bit, 12 bit	20 I/O	2.2 V	3.6 V	+ 125 C		Reel
8-bit Microcontrollers - MCU 8051 50 MHz 64 kB flash 4.25 kB RAM 8-bit Busy Bee MCU EFM8BB31F64A-D-5QFN32 Silicon Labs 1,533: $2.40 Non-Stocked Lead-Time 26 Weeks	Mfr. Part No. EFM8BB31F64A-D-5QFN32 Mouser Part No 634-EF8BB31F64AD5F32	Silicon Labs	8-bit Microcontrollers - MCU 8051 50 MHz 64 kB flash 4.25 kB RAM 8-bit Busy Bee MCU Learn More about Silicon Labs siliconlabs efm8 busy bee	Datasheet	Non-Stocked Lead-Time 26 Weeks	$2.40	Min.: 1,533 Mult.: 1,533	SMD/SMT	QFN-32	CIP-51 8051	8 bit	50 MHz	64 kB	4.35 kB	10 bit, 12 bit	29 I/O	2.2 V	3.6 V	+ 125 C		Tube
8-bit Microcontrollers - MCU 8051 50 MHz 64 kB flash 4.25 kB RAM 8-bit Busy Bee MCU EFM8BB31F64I-D-QFN24 Silicon Labs 2,520: $1.52 Non-Stocked Lead-Time 26 Weeks	Mfr. Part No. EFM8BB31F64I-D-QFN24 Mouser Part No 634-EF8BB31F64IDQF24	Silicon Labs	8-bit Microcontrollers - MCU 8051 50 MHz 64 kB flash 4.25 kB RAM 8-bit Busy Bee MCU Learn More about Silicon Labs siliconlabs efm8 busy bee	Datasheet	Non-Stocked Lead-Time 26 Weeks	$1.52	Min.: 2,520 Mult.: 2,520	SMD/SMT	QFN-24	CIP-51 8051	8 bit	50 MHz	64 kB	4.35 kB	10 bit, 12 bit	20 I/O	2.2 V	3.6 V	+ 125 C		Tube