8-bit Microcontrollers - MCU

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EFM8BB50 Busy Bee 8-Bit MCUs

Silicon Labs EFM8BB50 Busy Bee 8-Bit MCUs are part of the wide supply 5V EFM8 family of MCUs. The Silicon Labs EFM8BB50 is a multi-purpose line of 8-bit microcontrollers with a comprehensive feature set in small packages. These devices offer high value by integrating advanced analog and communication peripherals into small packages, making them ideal for space-constrained applications. With an efficient 8051 core, 5V capable I/O, precision analog, and enhanced pulse-width modulation, the EFM8BB50 family is also ideal for embedded applications.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (JPY) Filter the results in the table by unit price based on your quantity.	Qty.	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	Packaging
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 8 kB flash 0.5 kB RAM 9 GPIO BB5 8-bit MCU EFM8BB50F8G-A-QFN12 Silicon Labs 1: ¥289 10,835In Stock	Mfr. Part # EFM8BB50F8G-A-QFN12 Mouser Part # 634-M8BB50F8GAQFN12	Silicon Labs	8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 8 kB flash 0.5 kB RAM 9 GPIO BB5 8-bit MCU Learn More about Silicon Labs efm8bb50 mcus	Datasheet	10,835In Stock	¥289 ¥176.1 ¥147.7 ¥107.1 View ¥96.7 ¥91 ¥89.7	Min.: 1 Mult.: 1	8 kB	512 B	QFN-12	50 MHz	12 bit	9 I/O	1.8 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 85 C	BB50	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-QFN16R Silicon Labs 1: ¥159.5 1,000In Stock	Mfr. Part # EFM8BB50F16G-A-QFN16R Mouser Part # 634-M8BB50F16GAFN16R	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	1,000In Stock	Cut Tape ¥159.5 ¥111.3 ¥99.8 ¥87.2 View Reel ¥77.4 ¥81.2 ¥77.6 ¥77.4 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	16 kB	512 B	QFN-16	50 MHz	12 bit	12 I/O	1.8 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 85 C	BB50	Reel, Cut Tape, MouseReel
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 0.5 kB RAM 12 GPIO BB5 8-bit MCU EFM8BB50F16G-A-QFN16 Silicon Labs 1: ¥167.8 973In Stock	Mfr. Part # EFM8BB50F16G-A-QFN16 Mouser Part # 634-M8BB50F16GAQFN16	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	973In Stock	¥167.8 ¥127.9 ¥114.8 ¥100.3 View ¥93.2 ¥89 ¥85.5 ¥81.9 ¥79.7	Min.: 1 Mult.: 1	16 kB	512 B	QFN-16	50 MHz	12 bit	12 I/O	1.8 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 85 C	BB50	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-SOIC16 Silicon Labs 1: ¥199.3 1,546In Stock	Mfr. Part # EFM8BB50F16G-A-SOIC16 Mouser Part # 634-M8BB50F16GASIC16	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	1,546In Stock	¥199.3 ¥171.1 ¥149.7 ¥138.4 View ¥121.4 ¥114.9 ¥96.7 ¥88 ¥85.4	Min.: 1 Mult.: 1	16 kB	512 B	SOIC-16	50 MHz	12 bit	12 I/O	1.8 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 85 C	BB50	Tube
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 0.5 kB RAM 12 GPIO BB5 8-bit MCU EFM8BB50F16I-A-SOIC16 Silicon Labs 1: ¥196 959In Stock	Mfr. Part # EFM8BB50F16I-A-SOIC16 Mouser Part # 634-M8BB50F16IASIC16	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	959In Stock	¥196 ¥151.8 ¥135 ¥121.4 View ¥113.6 ¥108.8 ¥105.3 ¥100.5 ¥98	Min.: 1 Mult.: 1	16 kB	512 B	SOIC-16	50 MHz	12 bit	12 I/O	1.8 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 125 C	BB50	Tube
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 4 kB flash 0.5 kB RAM 9 GPIO BB5 8-bit MCU EFM8BB50F4G-A-QFN12 Silicon Labs 1: ¥124.6 706In Stock	Mfr. Part # EFM8BB50F4G-A-QFN12 Mouser Part # 634-M8BB50F4GAQFN12	Silicon Labs	8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 4 kB flash 0.5 kB RAM 9 GPIO BB5 8-bit MCU Learn More about Silicon Labs efm8bb50 mcus	Datasheet	706In Stock	¥124.6 ¥96.3 ¥89.2 ¥82.1 View ¥64.9 ¥62.1 ¥60.5	Min.: 1 Mult.: 1	4 kB	512 B	QFN-12	50 MHz	12 bit	9 I/O	1.8 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 85 C	BB50	Cut Tape
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: ¥162.8 648In Stock	Mfr. Part # EFM8BB50F4I-A-SOIC16 Mouser Part # 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	¥162.8 ¥125.6 ¥111.5 ¥100.3 View ¥93.3 ¥89.2 ¥85.7 ¥81.9 ¥79.7	Min.: 1 Mult.: 1	4 kB	512 B	SOIC-16	50 MHz	12 bit	12 I/O	1.8 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 125 C	BB50	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: ¥174.4 995In Stock	Mfr. Part # EFM8BB50F8G-A-SOIC16 Mouser Part # 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	¥174.4 ¥135.7 ¥120.6 ¥108 View ¥101 ¥96.7 ¥93.7 ¥89.4 ¥87	Min.: 1 Mult.: 1	8 kB	512 B	SOIC-16	50 MHz	12 bit	12 I/O	1.8 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 85 C		Tube
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 0.5 kB RAM 9 GPIO BB5 8-bit MCU EFM8BB50F16G-A-QFN12 Silicon Labs 1: ¥151.2 307In Stock 1,000Expected 10/6/2026	Mfr. Part # EFM8BB50F16G-A-QFN12 Mouser Part # 634-M8BB50F16GAQFN12	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	307In Stock 1,000Expected 10/6/2026	¥151.2 ¥119.6 ¥107 ¥95.5 View ¥89.9 ¥85.9 ¥82.6 ¥79.1 ¥76.9	Min.: 1 Mult.: 1	16 kB	512 B	QFN-12	50 MHz	12 bit	9 I/O	1.8 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 85 C	BB50	Cut Tape
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 0.5 kB RAM 9 GPIO BB5 8-bit MCU EFM8BB50F16I-A-QFN12 Silicon Labs 1: ¥162.8 100In Stock	Mfr. Part # EFM8BB50F16I-A-QFN12 Mouser Part # 634-M8BB50F16IAQFN12	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	100In Stock	¥162.8 ¥125.6 ¥111.5 ¥98.5 View ¥93.2 ¥89 ¥85.5 ¥81.9 ¥79.7	Min.: 1 Mult.: 1	16 kB	512 B	QFN-12	50 MHz	12 bit	9 I/O	1.8 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 125 C	BB50	Cut Tape
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 0.5 kB RAM 12 GPIO BB5 8-bit MCU EFM8BB50F16I-A-QFN16 Silicon Labs 1: ¥152.8 71In Stock	Mfr. Part # EFM8BB50F16I-A-QFN16 Mouser Part # 634-M8BB50F16IAQFN16	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	71In Stock	¥152.8 ¥122.4 ¥110 ¥92.5 View ¥92.4 ¥90.4 ¥87.5 ¥83.7 ¥81.7	Min.: 1 Mult.: 1	16 kB	512 B	QFN-16	50 MHz	12 bit	12 I/O	1.8 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 125 C	BB50	Cut Tape
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 4 kB flash 0.5 kB RAM 12 GPIO BB5 8-bit MCU EFM8BB50F4G-A-QFN16 Silicon Labs 1: ¥137.9 356In Stock	Mfr. Part # EFM8BB50F4G-A-QFN16 Mouser Part # 634-M8BB50F4GAQFN16	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	356In Stock	¥137.9 ¥118.3 ¥104.1 ¥93 View ¥70.6 ¥67.8 ¥64.9 ¥63.1	Min.: 1 Mult.: 1	4 kB	512 B	QFN-16	50 MHz	12 bit	12 I/O	1.8 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 85 C	BB50	Cut Tape
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: ¥74.7 Non-Stocked Lead-Time 12 Weeks	Mfr. Part # EFM8BB50F16G-A-QFN12R Mouser Part # 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 ¥74.7	Min.: 3,000 Mult.: 3,000 : 3,000	16 kB	512 B	QFN-12	50 MHz	12 bit	9 I/O	1.8 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 85 C	BB50	Reel
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: ¥91.9 Non-Stocked Lead-Time 12 Weeks	Mfr. Part # EFM8BB50F16G-A-SOIC16R Mouser Part # 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 ¥91.9	Min.: 2,500 Mult.: 2,500 : 2,500	16 kB	512 B	SOIC-16	50 MHz	12 bit	12 I/O	1.8 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 85 C	BB50	Reel
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: ¥159.5 Non-Stocked Lead-Time 12 Weeks	Mfr. Part # EFM8BB50F16I-A-QFN12R Mouser Part # 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 ¥159.5 ¥111.3 ¥99.8 ¥87.2 View Reel ¥77.4 ¥81.2 ¥77.6 ¥77.4 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	16 kB	512 B	QFN-12	50 MHz	12 bit	9 I/O	1.8 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 125 C		Reel, Cut Tape, MouseReel
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 0.5 kB RAM 12 GPIO BB5 8-bit MCU EFM8BB50F16I-A-QFN16R Silicon Labs 3,000: ¥79.9 Non-Stocked Lead-Time 12 Weeks	Mfr. Part # EFM8BB50F16I-A-QFN16R Mouser Part # 634-M8BB50F16IAFN16R	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 ¥79.9	Min.: 3,000 Mult.: 3,000 : 3,000	16 kB	512 B	QFN-16	50 MHz	12 bit	12 I/O	1.8 V	5.5 V	SMD/SMT	8 bit	- 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: ¥94.3 Non-Stocked Lead-Time 12 Weeks	Mfr. Part # EFM8BB50F16I-A-SOIC16R Mouser Part # 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 ¥94.3	Min.: 2,500 Mult.: 2,500 : 2,500	16 kB	512 B	SOIC-16	50 MHz	12 bit	12 I/O	1.8 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 125 C	BB50	Reel
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 4 kB flash 0.5 kB RAM 9 GPIO BB5 8-bit MCU EFM8BB50F4G-A-QFN12R Silicon Labs 3,000: ¥58.6 Non-Stocked Lead-Time 12 Weeks	Mfr. Part # EFM8BB50F4G-A-QFN12R Mouser Part # 634-M8BB50F4GAQFN12R	Silicon Labs	8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 4 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 ¥58.6	Min.: 3,000 Mult.: 3,000 : 3,000	4 kB	512 B	QFN-12	50 MHz	12 bit	9 I/O	1.8 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 85 C		Reel
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 4 kB flash 0.5 kB RAM 12 GPIO BB5 8-bit MCU EFM8BB50F4G-A-QFN16R Silicon Labs 3,000: ¥61.3 Non-Stocked Lead-Time 12 Weeks	Mfr. Part # EFM8BB50F4G-A-QFN16R Mouser Part # 634-M8BB50F4GAQFN16R	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	Non-Stocked Lead-Time 12 Weeks	Reel ¥61.3	Min.: 3,000 Mult.: 3,000 : 3,000	4 kB	512 B	QFN-16	50 MHz	12 bit	12 I/O	1.8 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 85 C	BB50	Reel
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 4 kB flash 0.5 kB RAM 12 GPIO BB5 8-bit MCU EFM8BB50F4G-A-SOIC16R Silicon Labs 2,500: ¥74.1 Non-Stocked Lead-Time 12 Weeks	Mfr. Part # EFM8BB50F4G-A-SOIC16R Mouser Part # 634-M8BB50F4GASIC16R	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	Non-Stocked Lead-Time 12 Weeks	Reel ¥74.1	Min.: 2,500 Mult.: 2,500 : 2,500	4 kB	512 B	SOIC-16	50 MHz	12 bit	12 I/O	1.8 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 85 C	BB50	Reel
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 4 kB flash 0.5 kB RAM 12 GPIO BB5 8-bit MCU EFM8BB50F4G-A-SOIC16 Silicon Labs 1: ¥162.8 Non-Stocked Lead-Time 12 Weeks	Mfr. Part # EFM8BB50F4G-A-SOIC16 Mouser Part # 634-M8BB50F4GASOIC16	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	Non-Stocked Lead-Time 12 Weeks	¥162.8 ¥125.2 ¥111.1 ¥101.2 View ¥97.8 ¥86.9 ¥83.7 ¥82.1 ¥81.2	Min.: 1 Mult.: 1	4 kB	512 B	SOIC-16	50 MHz	12 bit	12 I/O	1.8 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 85 C		Tube
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 4 kB flash 0.5 kB RAM 9 GPIO BB5 8-bit MCU EFM8BB50F4I-A-QFN12 Silicon Labs 1: ¥134.5 Non-Stocked Lead-Time 12 Weeks	Mfr. Part # EFM8BB50F4I-A-QFN12 Mouser Part # 634-M8BB50F4IAQFN12	Silicon Labs	8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 4 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	¥134.5 ¥103.6 ¥92 ¥81.4 View ¥76.7 ¥72.4 ¥71.3 ¥70.1 ¥69.4	Min.: 1 Mult.: 1	4 kB	512 B	QFN-12	50 MHz	12 bit	9 I/O	1.8 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 125 C		Cut Tape
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 4 kB flash 0.5 kB RAM 9 GPIO BB5 8-bit MCU EFM8BB50F4I-A-QFN12R Silicon Labs 3,000: ¥61.3 Non-Stocked Lead-Time 12 Weeks	Mfr. Part # EFM8BB50F4I-A-QFN12R Mouser Part # 634-M8BB50F4IAQFN12R	Silicon Labs	8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 4 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 ¥61.3	Min.: 3,000 Mult.: 3,000 : 3,000	4 kB	512 B	QFN-12	50 MHz	12 bit	9 I/O	1.8 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 125 C	BB50	Reel
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 4 kB flash 0.5 kB RAM 12 GPIO BB5 8-bit MCU EFM8BB50F4I-A-QFN16 Silicon Labs 1: ¥139.5 Non-Stocked Lead-Time 12 Weeks	Mfr. Part # EFM8BB50F4I-A-QFN16 Mouser Part # 634-M8BB50F4IAQFN16	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	Non-Stocked Lead-Time 12 Weeks	¥139.5 ¥108.1 ¥95.8 ¥84.7 View ¥80.2 ¥75.6 ¥74.4 ¥73.3 ¥72.4	Min.: 1 Mult.: 1	4 kB	512 B	QFN-16	50 MHz	12 bit	12 I/O	1.8 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 125 C	BB50	Cut Tape
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 4 kB flash 0.5 kB RAM 12 GPIO BB5 8-bit MCU EFM8BB50F4I-A-QFN16R Silicon Labs 3,000: ¥63.9 Non-Stocked Lead-Time 12 Weeks	Mfr. Part # EFM8BB50F4I-A-QFN16R Mouser Part # 634-M8BB50F4IAQFN16R	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	Non-Stocked Lead-Time 12 Weeks	Reel ¥63.9	Min.: 3,000 Mult.: 3,000 : 3,000	4 kB	512 B	QFN-16	50 MHz	12 bit	12 I/O	1.8 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 125 C		Reel