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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 8051 75 MHz 16 kB flash 1.25 kB RAM 8-bit Laser Bee MCU EFM8LB11F16E-C-QFP32R Silicon Labs 500: $1.69 Non-Stocked Lead-Time 26 Weeks	Mfr. Part No. EFM8LB11F16E-C-QFP32R Mouser Part No 634-LB11F16ECQFP32R	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 $1.69	Min.: 500 Mult.: 500 : 500	CIP-51 8051	16 kB	1.25 kB	QFP-32	72 MHz	10 bit/12 bit/14 bit	28 I/O	2.2 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 105 C	EFM8LB1		Reel
8-bit Microcontrollers - MCU 8051 75 MHz 32 kB flash 2.25 kB RAM 8-bit Laser Bee MCU EFM8LB11F32E-C-QFP32R Silicon Labs 500: $1.91 Non-Stocked Lead-Time 26 Weeks	Mfr. Part No. EFM8LB11F32E-C-QFP32R Mouser Part No 634-LB11F32ECQFP32R	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 $1.91	Min.: 500 Mult.: 500 : 500	CIP-51 8051	32 kB	2.25 kB	QFP-32	72 MHz	10 bit/12 bit/14 bit	28 I/O	2.2 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 105 C	EFM8LB1		Reel
8-bit Microcontrollers - MCU 8051 75 MHz 16 kB flash 1.25 kB RAM 8-bit Laser Bee MCU EFM8LB11F16E-C-QFN32R Silicon Labs 2,500: $1.30 Non-Stocked Lead-Time 26 Weeks	Mfr. Part No. EFM8LB11F16E-C-QFN32R Mouser Part No 634-LB11F16ECQFN32R	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 $1.30	Min.: 2,500 Mult.: 2,500 : 2,500	CIP-51 8051	16 kB	1.25 kB	QFN-32	72 MHz	10 bit/12 bit/14 bit	29 I/O	2.2 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 105 C	EFM8LB1		Reel
8-bit Microcontrollers - MCU 32K Flash 50MHz 8051 1.71V to 5.5V CY8C3445AXI-104 Infineon Technologies 450: $8.79 Non-Stocked Lead-Time 10 Weeks	Mfr. Part No. CY8C3445AXI-104 Mouser Part No 727-CY8C3445AXI-104	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	$8.79 $8.64 View Quote	Min.: 450 Mult.: 450	8051	32 kB	4 kB	TQFP-100	50 MHz	12 bit	70 I/O	1.71 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 85 C	CY8C3445		Tray
8-bit Microcontrollers - MCU 16K Flash 50MHz 8051 1.71V to 5.5V CY8C3244PVI-133 Infineon Technologies 600: $5.23 Non-Stocked Lead-Time 10 Weeks	Mfr. Part No. CY8C3244PVI-133 Mouser Part No 727-CY8C3244PVI-133	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	$5.23 Quote Quote	Min.: 600 Mult.: 600	8051	16 kB	2 kB	SSOP-48	50 MHz	12 bit	29 I/O	1.71 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 85 C	CY8C3244		Tube
8-bit Microcontrollers - MCU 8051 25 MHz 32 kB flash 4 kB RAM 8-bit Sleepy Bee MCU EFM8SB20F32G-B-QFN24 Silicon Labs 1,911: $1.27 Non-Stocked Lead-Time 12 Weeks NRND	Mfr. Part No. EFM8SB20F32G-B-QFN24 Mouser Part No 634-EFM8SBF32GBQFN24 NRND	Silicon Labs	8-bit Microcontrollers - MCU 8051 25 MHz 32 kB flash 4 kB RAM 8-bit Sleepy Bee MCU Learn More about Silicon Labs silabs efm8 sleepy bee	Datasheet	Non-Stocked Lead-Time 12 Weeks	$1.27 $1.24	Min.: 1,911 Mult.: 1,911	CIP-51 8051	32 kB	4.25 kB	QFN-24	25 MHz	10 bit	16 I/O	1.8 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 85 C	EFM8SB		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 8051 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU EFM8BB22F16I-C-QFN28R Silicon Labs 2,500: $1.16 Non-Stocked Lead-Time 31 Weeks	Mfr. Part No. EFM8BB22F16I-C-QFN28R Mouser Part No 634-8BB22F16ICQFN28R	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 31 Weeks	Reel $1.16	Min.: 2,500 Mult.: 2,500 : 2,500	CIP-51 8051	16 kB	2.3 kB	QFN-28	50 MHz	12 bit	22 I/O	2.2 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 125 C	EFM8BB2		Reel
8-bit Microcontrollers - MCU Low Pin Count 8051 Series; 2.4V to 5.5V; -40 to 105 N76E616AM44 Nuvoton 480: $1.09 Non-Stocked Lead-Time 40 Weeks Verify Status with Factory	Mfr. Part No. N76E616AM44 Mouser Part No 503-N76E616AM44 Verify Status with Factory	Nuvoton	8-bit Microcontrollers - MCU Low Pin Count 8051 Series; 2.4V to 5.5V; -40 to 105	Datasheet	Non-Stocked Lead-Time 40 Weeks	$1.09	Min.: 480 Mult.: 160	8051	18 kB	256 B	LQFP-44	16 MHz	10 bit	42 I/O	2.4 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 105 C			Tray
8-bit Microcontrollers - MCU 8051 50 MHz 64 kB 8-bit MCU C8051F385-GM Silicon Labs 1: $6.73 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	$6.73 $5.22 $4.79 $4.39 View $4.18 $4.06 $4.01 $3.96	Min.: 1 Mult.: 1	8051	64 kB	4.35 kB	QFN-32	48 MHz		25 I/O	2.7 V	5.25 V	SMD/SMT	8 bit	- 40 C	+ 85 C	C8051F385		Tube
8-bit Microcontrollers - MCU 8051 75 MHz 32 kB flash 2.25 kB RAM 8-bit Laser Bee MCU EFM8LB11F32E-C-QFP32 Silicon Labs 1,250: $1.81 Non-Stocked Lead-Time 26 Weeks NRND	Mfr. Part No. EFM8LB11F32E-C-QFP32 Mouser Part No 634-LB11F32ECQFP32 NRND	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	$1.81	Min.: 1,250 Mult.: 1,250	CIP-51 8051	32 kB	2.25 kB	QFP-32	72 MHz	10 bit/12 bit/14 bit	28 I/O	2.2 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 105 C	EFM8LB1		Tray
8-bit Microcontrollers - MCU 8051 50 MHz 32 kB flash 2.25 kB RAM 8-bit Busy Bee MCU EFM8BB31F32I-D-QSOP24 Silicon Labs 1: $2.42 Non-Stocked End of Life	Mfr. Part No. EFM8BB31F32I-D-QSOP24 Mouser Part No 634-EF8BB31F32IDSO24 End of Life	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	$2.42 $1.79 $1.63 $1.46 View $1.38 $1.34 $1.29 $1.24 $1.21	Min.: 1 Mult.: 1	CIP-51 8051	32 kB	2.3 kB	QSOP-24	50 MHz	10 bit, 12 bit	21 I/O	2.2 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 125 C			Tube
8-bit Microcontrollers - MCU Low Pin Count 8051 Series; 2.4V to 5.5V; -40 to 85 N79E715AS20 Nuvoton 874: $0.593 Non-Stocked Lead-Time 40 Weeks NRND	Mfr. Part No. N79E715AS20 Mouser Part No 503-N79E715AS20 NRND	Nuvoton	8-bit Microcontrollers - MCU Low Pin Count 8051 Series; 2.4V to 5.5V; -40 to 85	Datasheet	Non-Stocked Lead-Time 40 Weeks	$0.593 $0.532 $0.446	Min.: 874 Mult.: 38	8051	16 kB	256 B	SOP-20	24 MHz	10 bit	25 I/O	2.4 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 85 C			Tube
8-bit Microcontrollers - MCU Low Pin Count 8051 Series; 2.4V to 5.5V; -40 to 85 N79E715AS16 Nuvoton 864: $0.575 Non-Stocked Lead-Time 40 Weeks NRND	Mfr. Part No. N79E715AS16 Mouser Part No 503-N79E715AS16 NRND	Nuvoton	8-bit Microcontrollers - MCU Low Pin Count 8051 Series; 2.4V to 5.5V; -40 to 85	Datasheet	Non-Stocked Lead-Time 40 Weeks	$0.575 $0.494 $0.456	Min.: 864 Mult.: 48	8051	16 kB	256 B	SOP-16	24 MHz	10 bit	25 I/O	2.4 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 85 C			Tube
8-bit Microcontrollers - MCU Low Pin Count 8051 Series; 2.4V to 5.5V; -40 to 85 N76E616AL48 Nuvoton 500: $0.883 Non-Stocked Lead-Time 40 Weeks Verify Status with Factory	Mfr. Part No. N76E616AL48 Mouser Part No 503-N76E616AL48 Verify Status with Factory	Nuvoton	8-bit Microcontrollers - MCU Low Pin Count 8051 Series; 2.4V to 5.5V; -40 to 85	Datasheet	Non-Stocked Lead-Time 40 Weeks	$0.883 $0.78 $0.753	Min.: 500 Mult.: 250	8051	18 kB	256 B	LQFP-48	16 MHz	10 bit	46 I/O	2.4 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 105 C			Tray
8-bit Microcontrollers - MCU 16kB/1kB RAM, 10b ADC, 10b 2xDAC, QFN24 C8051F390-A-GMR Silicon Labs 1: $4.36 1,497In Stock	Mfr. Part No. C8051F390-A-GMR Mouser Part No 634-C8051F390-A-GMR	Silicon Labs	8-bit Microcontrollers - MCU 16kB/1kB RAM, 10b ADC, 10b 2xDAC, QFN24	Datasheet	1,497In Stock	Cut Tape $4.36 $3.29 $3.02 $2.72 View Reel $2.18 $2.58 $2.57 $2.18 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	8051	16 kB	1 kB	QFN-24	50 MHz	10 bit	21 I/O	1.8 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 105 C	C8051F390		Reel, Cut Tape, MouseReel
8-bit Microcontrollers - MCU 8051 50 MHz 32 kB 8-bit MCU C8051F411-GM Silicon Labs 1: $13.51 2,585In Stock NRND	Mfr. Part No. C8051F411-GM Mouser Part No 634-C8051F411-GM NRND	Silicon Labs	8-bit Microcontrollers - MCU 8051 50 MHz 32 kB 8-bit MCU	Datasheet	2,585In Stock	$13.51 $11.09 $10.12 $9.56 View $9.52 $9.04 Quote	Min.: 1 Mult.: 1	8051	32 kB	2.31 kB	QFN-28	50 MHz	12 bit	20 I/O	2 V	5.25 V	SMD/SMT	8 bit	- 40 C	+ 85 C	C8051F411		Tube
8-bit Microcontrollers - MCU 8051 50 MHz 32 kB 8-bit MCU C8051F411-GMR Silicon Labs 1: $14.06 1,837In Stock	Mfr. Part No. C8051F411-GMR Mouser Part No 634-C8051F411-GMR	Silicon Labs	8-bit Microcontrollers - MCU 8051 50 MHz 32 kB 8-bit MCU	Datasheet	1,837In Stock	Cut Tape $14.06 $11.47 $10.51 $9.87 View Reel $8.76 $9.81 $9.45 $8.88 $8.76 Quote MouseReel Available	Min.: 1 Mult.: 1 : 2,500	8051	32 kB	2.25 kB	QFN-28	50 MHz	12 bit	20 I/O	2 V	5.25 V	SMD/SMT	8 bit	- 40 C	+ 85 C	C8051F411		Reel, Cut Tape, MouseReel
8-bit Microcontrollers - MCU 8051 50 MHz 64 kB 8-bit MCU C8051F340-GQ Silicon Labs 1: $25.38 1,841In Stock NRND	Mfr. Part No. C8051F340-GQ Mouser Part No 634-C8051F340-GQ NRND	Silicon Labs	8-bit Microcontrollers - MCU 8051 50 MHz 64 kB 8-bit MCU	Datasheet	1,841In Stock	$25.38 $20.30 $19.02 $17.63 View $16.96 $16.56	Min.: 1 Mult.: 1	8051	64 kB	4.25 kB	TQFP-48	48 MHz	10 bit	40 I/O	2.7 V	5.25 V	SMD/SMT	8 bit	- 40 C	+ 85 C	C8051F340		Tray
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	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 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	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	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	8051	16 kB	1 kB	QFN-24	50 MHz	10 bit	21 I/O	1.8 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 105 C	C8051F390		Tube
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	8051	64 kB	4.25 kB	TQFP-64	25 MHz	8 bit, 10 bit	32 I/O	2.7 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 85 C	C8051F045		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	8051	128 kB	8.25 kB	TQFP-100	100 MHz		64 I/O	3 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 85 C	C8051F130		Reel, Cut Tape, MouseReel
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	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	Tube