.hide-partial { max-height: none; } .show-more { display: none; }

8051 microcontroller Embedded Processors & Controllers

.catnav-wrapper { height: auto; overflow: visible; } .catalog-nav-tabs ul { white-space: normal; }

Types of Embedded Processors & Controllers

List Images

Results: 574

Applied Filters:

Manufacturer

Product Type

Mounting Style

Package/Case

Core

Data Bus Width

Maximum Clock Frequency

Program Memory Size

Data RAM Size

ADC Resolution

Number of I/Os

Minimum Operating Temperature

Maximum Operating Temperature

Qualification

Packaging

Reset All

Search within results

In Stock

Normally Stocked

Active

New Products

RoHS Compliant

.search-refine-wrapper { display: inline-block; min-width: 100%; } .scroll-body { overflow-x: visible; } .search-table-wrapper { overflow: visible; } .hide-partial { max-height: none; } .show-more { display: none; }

Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (USD) Filter the results in the table by unit price based on your quantity.	Qty.	Product Type	Mounting Style	Package/Case	Core	Data Bus Width	Maximum Clock Frequency	Program Memory Size	Data RAM Size	ADC Resolution	Number of I/Os	Minimum Operating Temperature	Maximum Operating Temperature	Packaging
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	8-bit Microcontrollers - MCU	SMD/SMT	QFN-32	CIP-51 8051	8 bit	50 MHz	32 kB	2.3 kB	10 bit, 12 bit	29 I/O	- 40 C	+ 125 C	Tube
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	8-bit Microcontrollers - MCU	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	- 40 C	+ 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 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	8-bit Microcontrollers - MCU	SMD/SMT	TSSOP-20				16 kB	1.28 kB		16 I/O	- 40 C	+ 85 C	Reel, Cut Tape
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 0.5 kB RAM 12 GPIO BB5 8-bit MCU EFM8BB50F16G-A-SOIC16R Silicon Labs 2,500: $0.58 Non-Stocked Lead-Time 12 Weeks	Mfr. Part No. EFM8BB50F16G-A-SOIC16R Mouser Part No 634-M8BB50F16GSIC16R	Silicon Labs	8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 0.5 kB RAM 12 GPIO BB5 8-bit MCU Learn More about Silicon Labs efm8bb50 mcus	Datasheet	Non-Stocked Lead-Time 12 Weeks	Reel $0.58 $0.566	Min.: 2,500 Mult.: 2,500 : 2,500	8-bit Microcontrollers - MCU	SMD/SMT	SOIC-16		8 bit	50 MHz	16 kB	512 B	12 bit	12 I/O	- 40 C	+ 85 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	8-bit Microcontrollers - MCU	SMD/SMT	TSSOP-20				16 kB	1.28 kB		16 I/O	- 40 C	+ 85 C	Reel
8-bit Microcontrollers - MCU 8051 75 MHz 32 kB flash 2.25 kB RAM 8-bit Laser Bee MCU EFM8LB11F32E-C-QFN32 Silicon Labs 2,450: $1.56 Non-Stocked Lead-Time 26 Weeks	Mfr. Part No. EFM8LB11F32E-C-QFN32 Mouser Part No 634-LB11F32ECQFN32	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	$1.56	Min.: 2,450 Mult.: 2,450	8-bit Microcontrollers - MCU	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	- 40 C	+ 105 C	Tray
8-bit Microcontrollers - MCU 8051 75 MHz 32 kB flash 2.25 kB RAM 8-bit Laser Bee MCU EFM8LB12F32E-C-QFP32R Silicon Labs 500: $2.06 Non-Stocked Lead-Time 26 Weeks	Mfr. Part No. EFM8LB12F32E-C-QFP32R Mouser Part No 634-LB12F32ECQFP32R	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 $2.06	Min.: 500 Mult.: 500 : 500	8-bit Microcontrollers - MCU	SMD/SMT	QFP-32	CIP-51 8051	8 bit	72 MHz	32 kB	2.25 kB	10 bit/12 bit/14 bit	28 I/O	- 40 C	+ 105 C	Reel
8-bit Microcontrollers - MCU 32K Flash 50MHz 8051 1.71V to 5.5V CY8C3445LTI-078 Infineon Technologies 1: $12.50 Non-Stocked Lead-Time 10 Weeks	Mfr. Part No. CY8C3445LTI-078 Mouser Part No 727-CY8C3445LTI-078	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	$12.50 $9.80 $8.72 $8.39 View $8.02 $7.77 $7.56 Quote	Min.: 1 Mult.: 1	8-bit Microcontrollers - MCU	SMD/SMT	QFN-48	8051	8 bit	50 MHz	32 kB	4 kB	12 bit	29 I/O	- 40 C	+ 85 C	Tray
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU EFM8BB51F16I-C-TSSOP20R Silicon Labs 2,500: $0.58 Non-Stocked Lead-Time 24 Weeks	Mfr. Part No. EFM8BB51F16I-C-TSSOP20R Mouser Part No 634-EFM851F16TSOP20R	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 $0.58 $0.566	Min.: 2,500 Mult.: 2,500 : 2,500	8-bit Microcontrollers - MCU	SMD/SMT	TSSOP-20				16 kB	1.28 kB		16 I/O	- 40 C	+ 85 C	Reel
8-bit Microcontrollers - MCU 8051 25 MHz 8 kB flash 0.5 kB RAM 8-bit Busy Bee MCU EFM8BB10F8I-A-SOIC16R Silicon Labs 2,500: $0.681 Non-Stocked Lead-Time 12 Weeks	Mfr. Part No. EFM8BB10F8I-A-SOIC16R Mouser Part No 634-8BB10F8IASOIC16R	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	Non-Stocked Lead-Time 12 Weeks	Reel $0.681 $0.665	Min.: 2,500 Mult.: 2,500 : 2,500	8-bit Microcontrollers - MCU	SMD/SMT	SOIC-16	CIP-51 8051	8 bit	25 MHz	8 kB	512 B	12 bit	13 I/O	- 40 C	+ 125 C	Reel
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 0.5 kB RAM 12 GPIO BB5 8-bit MCU EFM8BB50F16I-A-SOIC16R Silicon Labs 2,500: $0.594 Non-Stocked Lead-Time 12 Weeks	Mfr. Part No. EFM8BB50F16I-A-SOIC16R Mouser Part No 634-M8BB50F16IAIC16R	Silicon Labs	8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 0.5 kB RAM 12 GPIO BB5 8-bit MCU Learn More about Silicon Labs efm8bb50 mcus	Datasheet	Non-Stocked Lead-Time 12 Weeks	Reel $0.594 $0.58	Min.: 2,500 Mult.: 2,500 : 2,500	8-bit Microcontrollers - MCU	SMD/SMT	SOIC-16		8 bit	50 MHz	16 kB	512 B	12 bit	12 I/O	- 40 C	+ 125 C	Reel
8-bit Microcontrollers - MCU Low Pin Count 8051 Series; 2.4V to 5.5V; -40 to 105 N76E003BQ20 Nuvoton 3,000: $0.472 Non-Stocked Lead-Time 40 Weeks	Mfr. Part No. N76E003BQ20 Mouser Part No 503-N76E003BQ20	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	Reel $0.472	Min.: 3,000 Mult.: 3,000 : 3,000	8-bit Microcontrollers - MCU	SMD/SMT	LQFP-44	8051	8 bit	16 MHz	18 kB	256 B	12 bit	18 I/O	- 40 C	+ 105 C	Reel
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	8-bit Microcontrollers - MCU	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	- 40 C	+ 105 C	Reel
8-bit Microcontrollers - MCU 8051 75 MHz 16 kB flash 1.25 kB RAM 8-bit Laser Bee MCU EFM8LB11F16E-C-QFN24R Silicon Labs 2,500: $1.24 Non-Stocked Lead-Time 26 Weeks	Mfr. Part No. EFM8LB11F16E-C-QFN24R Mouser Part No 634-LB11F16ECQFN24R	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 $1.24 $1.21	Min.: 2,500 Mult.: 2,500 : 2,500	8-bit Microcontrollers - MCU	SMD/SMT	QFN-24	CIP-51 8051	8 bit	72 MHz	16 kB	1.25 kB	10 bit/12 bit/14 bit	20 I/O	- 40 C	+ 105 C	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	8-bit Microcontrollers - MCU	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	- 40 C	+ 105 C	Reel
8-bit Microcontrollers - MCU 8051 75 MHz 16 kB flash 1.25 kB RAM 8-bit Laser Bee MCU EFM8LB11F16E-C-QFN32 Silicon Labs 2,450: $1.32 Non-Stocked Lead-Time 26 Weeks	Mfr. Part No. EFM8LB11F16E-C-QFN32 Mouser Part No 634-LB11F16ECQFN32	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	$1.32	Min.: 2,450 Mult.: 2,450	8-bit Microcontrollers - MCU	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	- 40 C	+ 105 C	Tray
8-bit Microcontrollers - MCU 32K Flash 50MHz 8051 1.71V to 5.5V CY8C3445AXI-104 Infineon Technologies 1: $15.23 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	$15.23 $11.88 $10.36 $9.98 View $9.71 $8.79 $8.64 Quote	Min.: 1 Mult.: 1	8-bit Microcontrollers - MCU	SMD/SMT	TQFP-100	8051	8 bit	50 MHz	32 kB	4 kB	12 bit	70 I/O	- 40 C	+ 85 C	Tray
8-bit Microcontrollers - MCU 16K Flash 50MHz 8051 1.71V to 5.5V CY8C3244PVI-133 Infineon Technologies 1: $10.43 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	$10.43 $8.06 $7.69 $5.72 View $5.23 Quote	Min.: 1 Mult.: 1	8-bit Microcontrollers - MCU	SMD/SMT	SSOP-48	8051	8 bit	50 MHz	16 kB	2 kB	12 bit	29 I/O	- 40 C	+ 85 C	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	8-bit Microcontrollers - MCU	SMD/SMT	QFP-32	CIP-51 8051	8 bit	50 MHz	32 kB	2.3 kB	10 bit, 12 bit	28 I/O	- 40 C	+ 85 C	Tray
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	8-bit Microcontrollers - MCU	SMD/SMT	QFP-32	CIP-51 8051	8 bit	72 MHz	32 kB	2.25 kB	10 bit/12 bit/14 bit	28 I/O	- 40 C	+ 105 C	Reel
8-bit Microcontrollers - MCU 8051 25 MHz 32 kB flash 4 kB RAM 8-bit Sleepy Bee MCU EFM8SB20F32G-B-QFN24 Silicon Labs 1: $2.47 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	$2.47 $1.82 $1.66 $1.48 View $1.40 $1.36 $1.31 $1.27 $1.24	Min.: 1 Mult.: 1	8-bit Microcontrollers - MCU	SMD/SMT	QFN-24	CIP-51 8051	8 bit	25 MHz	32 kB	4.25 kB	10 bit	16 I/O	- 40 C	+ 85 C	Tube
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	8-bit Microcontrollers - MCU	SMD/SMT	QFN-28	CIP-51 8051	8 bit	50 MHz	16 kB	2.3 kB	12 bit	22 I/O	- 40 C	+ 125 C	Reel
8-bit Microcontrollers - MCU 8051 50 MHz 64 kB 8-bit MCU C8051F385-GM Silicon Labs 1: $6.77 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	$6.77 $5.22 $4.81 $4.39 View $4.18 $4.06 $4.01 $3.96	Min.: 1 Mult.: 1	8-bit Microcontrollers - MCU	SMD/SMT	QFN-32	8051	8 bit	48 MHz	64 kB	4.35 kB		25 I/O	- 40 C	+ 85 C	Tube
8-bit Microcontrollers - MCU 8051 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU EFM8BB31F16G-D-QFP32R Silicon Labs 1: $2.25 Non-Stocked Lead-Time 30 Weeks End of Life	Mfr. Part No. EFM8BB31F16G-D-QFP32R Mouser Part No 634-EF8BB31F16GDP32R End of Life	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 30 Weeks	Cut Tape $2.25 $1.66 $1.51 $1.35 $1.27 Reel $1.23	Min.: 1 Mult.: 1 : 500	8-bit Microcontrollers - MCU	SMD/SMT	QFP-32	CIP-51 8051	8 bit	50 MHz	16 kB	2.3 kB	10 bit, 12 bit	28 I/O	- 40 C	+ 85 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-QFN24R Silicon Labs 1: $1.97 Non-Stocked Lead-Time 29 Weeks End of Life	Mfr. Part No. EFM8BB31F16I-D-QFN24R Mouser Part No 634-EF8BB31F16IDF24R End of Life	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 29 Weeks	Cut Tape $1.97 $1.44 $1.31 $1.17 View Reel $1.05 $1.10 $1.06 $1.05 $1.05	Min.: 1 Mult.: 1 : 1,500	8-bit Microcontrollers - MCU	SMD/SMT	QFN-24	CIP-51 8051	8 bit	50 MHz	16 kB	2.3 kB	10 bit, 12 bit	20 I/O	- 40 C	+ 125 C	Reel, Cut Tape