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50 MHz 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 C8051F550-AMR Silicon Labs 1,500: $5.14 Non-Stocked	Mfr. Part No. C8051F550-AMR Mouser Part No 634-C8051F550-AMR	Silicon Labs	8-bit Microcontrollers - MCU	Datasheet	Non-Stocked	$5.14 Quote Quote	Min.: 1,500 Mult.: 1	CIP-51 8051	32 kB	2.25 kB	QFN-24	50 MHz	12 bit	18 I/O	1.8 V	5.25 V	SMD/SMT	8 bit	- 40 C	+ 125 C	C8051F550	AEC-Q100
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	CIP-51 8051	16 kB	2.3 kB	QFN-24	50 MHz	10 bit, 12 bit	20 I/O	2.2 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 125 C			Reel
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	CIP-51 8051	16 kB	2.3 kB	QFN-24	50 MHz	10 bit, 12 bit	20 I/O	2.2 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 125 C			Tube
8-bit Microcontrollers - MCU 8051 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU EFM8BB31F16A-D-5QFN32R Silicon Labs 2,500: $2.01 Non-Stocked Lead-Time 26 Weeks	Mfr. Part No. EFM8BB31F16A-D-5QFN32R Mouser Part No 634-EF8BB31F16AD532R	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 $2.01 $1.97	Min.: 2,500 Mult.: 2,500 : 2,500	CIP-51 8051	16 kB	2.3 kB	QFN-32	50 MHz	10 bit, 12 bit	29 I/O	2.2 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 125 C			Reel
8-bit Microcontrollers - MCU 8051 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU EFM8BB31F16A-D-5QFN32 Silicon Labs 1,533: $2.07 Non-Stocked Lead-Time 26 Weeks	Mfr. Part No. EFM8BB31F16A-D-5QFN32 Mouser Part No 634-EF8BB31F16AD5F32	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	$2.07	Min.: 1,533 Mult.: 1,533	CIP-51 8051	16 kB	2.3 kB	QFN-32	50 MHz	10 bit, 12 bit	29 I/O	2.2 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 125 C			Tube
8-bit Microcontrollers - MCU 8051 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU EFM8BB31F16I-D-5QFN32R Silicon Labs 1: $2.13 Non-Stocked Lead-Time 26 Weeks	Mfr. Part No. EFM8BB31F16I-D-5QFN32R Mouser Part No 634-EF8BB31F16ID532R	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 $2.13 $1.57 $1.43 $1.28 Reel $1.10 View $1.20 $1.16 $1.11 $1.05	Min.: 1 Mult.: 1 : 2,500	CIP-51 8051	16 kB	2.3 kB	QFN-32	50 MHz	10 bit, 12 bit	29 I/O	2.2 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 125 C			Reel, Cut Tape
8-bit Microcontrollers - MCU 8051 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU EFM8BB31F16I-D-5QFN32 Silicon Labs 1: $2.13 Non-Stocked Lead-Time 26 Weeks	Mfr. Part No. EFM8BB31F16I-D-5QFN32 Mouser Part No 634-EF8BB31F16ID5F32	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	$2.13 $1.57 $1.43 $1.28 View $1.20 $1.16 $1.11	Min.: 1 Mult.: 1	CIP-51 8051	16 kB	2.3 kB	QFN-32	50 MHz	10 bit, 12 bit	29 I/O	2.2 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 125 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	CIP-51 8051	16 kB	2.3 kB	QFP-32	50 MHz	10 bit, 12 bit	28 I/O	2.2 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 125 C			Reel, Cut Tape
8-bit Microcontrollers - MCU 8051 50 MHz 32 kB flash 2.25 kB RAM 8-bit Busy Bee MCU EFM8BB31F32A-D-5QFN32R Silicon Labs 2,500: $2.08 Non-Stocked Lead-Time 26 Weeks	Mfr. Part No. EFM8BB31F32A-D-5QFN32R Mouser Part No 634-EF8BB31F32AD532R	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	Non-Stocked Lead-Time 26 Weeks	Reel $2.08 $2.04	Min.: 2,500 Mult.: 2,500 : 2,500	CIP-51 8051	32 kB	2.3 kB	QFN-32	50 MHz	10 bit, 12 bit	29 I/O	2.2 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 125 C			Reel
8-bit Microcontrollers - MCU 8051 50 MHz 32 kB flash 2.25 kB RAM 8-bit Busy Bee MCU EFM8BB31F32A-D-5QFN32 Silicon Labs 1,533: $2.15 Non-Stocked Lead-Time 26 Weeks	Mfr. Part No. EFM8BB31F32A-D-5QFN32 Mouser Part No 634-EF8BB31F32AD5F32	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	Non-Stocked Lead-Time 26 Weeks	$2.15	Min.: 1,533 Mult.: 1,533	CIP-51 8051	32 kB	2.3 kB	QFN-32	50 MHz	10 bit, 12 bit	29 I/O	2.2 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 125 C			Tube
8-bit Microcontrollers - MCU 8051 50 MHz 32 kB flash 2.25 kB RAM 8-bit Busy Bee MCU EFM8BB31F32G-D-QFN32R Silicon Labs 1: $2.30 Non-Stocked Lead-Time 26 Weeks	Mfr. Part No. EFM8BB31F32G-D-QFN32R Mouser Part No 634-EF8BB31F32GDN32R	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	Non-Stocked Lead-Time 26 Weeks	Cut Tape $2.30 $1.70 $1.55 $1.38 View Reel $1.19 $1.31 $1.26 $1.22 $1.19	Min.: 1 Mult.: 1 : 2,500	CIP-51 8051	32 kB	2.3 kB	QFN-32	50 MHz	10 bit, 12 bit	29 I/O	2.2 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 85 C			Reel, Cut Tape
8-bit Microcontrollers - MCU 8051 50 MHz 32 kB flash 2.25 kB RAM 8-bit Busy Bee MCU EFM8BB31F32G-D-QFN24 Silicon Labs 1: $2.16 Non-Stocked Lead-Time 26 Weeks	Mfr. Part No. EFM8BB31F32G-D-QFN24 Mouser Part No 634-EF8BB31F32GDQF24	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	Non-Stocked Lead-Time 26 Weeks	$2.16 $1.59 $1.45 $1.29 View $1.22 $1.17 $1.13 $1.11	Min.: 1 Mult.: 1	CIP-51 8051	32 kB	2.3 kB	QFN-24	50 MHz	10 bit, 12 bit	20 I/O	2.2 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 85 C			Tube
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	CIP-51 8051	64 kB	4.35 kB	QFN-32	50 MHz	10 bit, 12 bit	29 I/O	2.2 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 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	CIP-51 8051	64 kB	4.35 kB	QFN-32	50 MHz	10 bit, 12 bit	29 I/O	2.2 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 125 C			Tube
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	CIP-51 8051	64 kB	4.35 kB	QFN-24	50 MHz	10 bit, 12 bit	20 I/O	2.2 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 125 C			Reel
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	CIP-51 8051	64 kB	4.35 kB	QFN-24	50 MHz	10 bit, 12 bit	20 I/O	2.2 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 125 C			Tube
8-bit Microcontrollers - MCU 8051 50 MHz 128 kB 5 V 8-bit MCU C8051F583-IM Silicon Labs 1,533: $9.83 Non-Stocked Lead-Time 29 Weeks NRND	Mfr. Part No. C8051F583-IM Mouser Part No 634-C8051F583-IM NRND	Silicon Labs	8-bit Microcontrollers - MCU 8051 50 MHz 128 kB 5 V 8-bit MCU Learn More about Silicon Labs silicon c8051f58x automotive industrial mcus	Datasheet	Non-Stocked Lead-Time 29 Weeks	$9.83	Min.: 1,533 Mult.: 1,533	8051	128 kB	8.25 kB	QFN-32	50 MHz	12 bit	25 I/O	1.8 V	5.25 V	SMD/SMT	8 bit	- 40 C	+ 125 C	C8051F583	AEC-Q100	Tube
8-bit Microcontrollers - MCU 8051 50 MHz 32 kB flash 2.25 kB RAM 8-bit Busy Bee MCU EFM8BB31F32G-D-QFP32 Silicon Labs 1,250: $1.39 Non-Stocked Lead-Time 26 Weeks NRND	Mfr. Part No. EFM8BB31F32G-D-QFP32 Mouser Part No 634-EF8BB31F32GDQP32 NRND	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	Non-Stocked Lead-Time 26 Weeks	$1.39	Min.: 1,250 Mult.: 1,250	CIP-51 8051	32 kB	2.3 kB	QFP-32	50 MHz	10 bit, 12 bit	28 I/O	2.2 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 85 C			Tray
8-bit Microcontrollers - MCU C8051F507-AM Silicon Labs 1: $10.39 Non-Stocked End of Life	Mfr. Part No. C8051F507-AM Mouser Part No 634-C8051F507-AM End of Life	Silicon Labs	8-bit Microcontrollers - MCU	Datasheet	Non-Stocked	$10.39 $8.08 $7.50 $6.87 View $6.51 $6.38 $6.23 Quote	Min.: 1 Mult.: 1	CIP-51 8051	32 kB	256 B	QFN-32	50 MHz	12 bit	25 I/O	1.8 V	5.25 V	SMD/SMT	8 bit	- 40 C	+ 125 C	C8051F507	AEC-Q100
8-bit Microcontrollers - MCU 8051 MHz 16 kB flash industrial 8-bit MCU C8051F542-IM Silicon Labs 1: $8.64 Non-Stocked Lead-Time 29 Weeks End of Life	Mfr. Part No. C8051F542-IM Mouser Part No 634-C8051F542-IM End of Life	Silicon Labs	8-bit Microcontrollers - MCU 8051 MHz 16 kB flash industrial 8-bit MCU	Datasheet	Non-Stocked Lead-Time 29 Weeks	$8.64 $6.70 $6.21 $5.68 View $5.42 $5.31	Min.: 1 Mult.: 1	8051	16 kB	1.25 kB	QFN-24	50 MHz	12 bit	18 I/O	1.8 V	5.25 V	SMD/SMT	8 bit	- 40 C	+ 125 C	C8051F542	AEC-Q100	Tube
8-bit Microcontrollers - MCU MCU 8051 50MHz 16kB 5V C8051F543-IM Silicon Labs 1: $8.48 Non-Stocked Lead-Time 29 Weeks End of Life	Mfr. Part No. C8051F543-IM Mouser Part No 634-C8051F543-IM End of Life	Silicon Labs	8-bit Microcontrollers - MCU MCU 8051 50MHz 16kB 5V	Datasheet	Non-Stocked Lead-Time 29 Weeks	$8.48 $6.57 $6.09 $5.82	Min.: 1 Mult.: 1	8051	16 kB	256 B	QFN-24	50 MHz		18 I/O	1.8 V	5.25 V	SMD/SMT	8 bit	- 40 C	+ 125 C	C8051F543	AEC-Q100	Tube
8-bit Microcontrollers - MCU C8051F553-AM Silicon Labs 1: $8.43 Non-Stocked End of Life	Mfr. Part No. C8051F553-AM Mouser Part No 634-C8051F553-AM End of Life	Silicon Labs	8-bit Microcontrollers - MCU	Datasheet	Non-Stocked	$8.43 $6.49 $5.66 $5.56 View $5.34 $5.33 $5.25 Quote	Min.: 1 Mult.: 1	CIP-51 8051	32 kB	2.25 kB	QFN-24	50 MHz	12 bit	18 I/O	1.8 V	5.25 V	SMD/SMT	8 bit	- 40 C	+ 125 C	C8051F553	AEC-Q100
8-bit Microcontrollers - MCU C8051F554-AM Silicon Labs 1: $8.35 Non-Stocked End of Life	Mfr. Part No. C8051F554-AM Mouser Part No 634-C8051F554-AM End of Life	Silicon Labs	8-bit Microcontrollers - MCU	Datasheet	Non-Stocked	$8.35 $6.44 $5.96 $5.43 View $5.03 $4.87 $4.64	Min.: 1 Mult.: 1	CIP-51 8051	16 kB	2.25 kB	QFN-24	50 MHz	12 bit	18 I/O	1.8 V	5.25 V	SMD/SMT	8 bit	- 40 C	+ 125 C	C8051F554	AEC-Q100
8-bit Microcontrollers - MCU C8051F569-AM Silicon Labs 1: $11.04 Non-Stocked End of Life	Mfr. Part No. C8051F569-AM Mouser Part No 634-C8051F569-AM End of Life	Silicon Labs	8-bit Microcontrollers - MCU	Datasheet	Non-Stocked	$11.04 $8.62 $7.80 $7.28 View $6.98 $6.85 $6.71 Quote	Min.: 1 Mult.: 1	CIP-51 8051	32 kB	2.25 kB	QFN-40	50 MHz	12 bit	33 I/O	1.8 V	5.25 V	SMD/SMT	8 bit	- 40 C	+ 125 C	C8051F569	AEC-Q100
8-bit Microcontrollers - MCU 8051 50 MHz 128 kB 5 V 8-bit MCU C8051F581-IM Silicon Labs 1: $15.74 Non-Stocked Lead-Time 29 Weeks End of Life	Mfr. Part No. C8051F581-IM Mouser Part No 634-C8051F581-IM End of Life	Silicon Labs	8-bit Microcontrollers - MCU 8051 50 MHz 128 kB 5 V 8-bit MCU Learn More about Silicon Labs silicon c8051f58x automotive industrial mcus	Datasheet	Non-Stocked Lead-Time 29 Weeks	$15.74 $12.33 $11.48 $10.54 View $10.44 $10.29 $10.17 Quote	Min.: 1 Mult.: 1	8051	128 kB	8.25 kB	QFN-48	50 MHz	12 bit	40 I/O	1.8 V	5.25 V	SMD/SMT	8 bit	- 40 C	+ 125 C	C8051F581	AEC-Q100	Tube