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EFM8BB1 Series 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 8051 25 MHz 2 kB flash 0.25 kB RAM 8-bit Busy Bee MCU EFM8BB10F2G-A-QFN20 Silicon Labs 1: $0.861 15,493In Stock	Mfr. Part No. EFM8BB10F2G-A-QFN20 Mouser Part No 634-8BB10F2GAQF20	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	15,493In Stock	$0.861 $0.67 $0.601 $0.519 View $0.49 $0.456 $0.426 $0.409 $0.399	Min.: 1 Mult.: 1	CIP-51 8051	2 kB	256 B	QFN-20	25 MHz	12 bit	16 I/O	2.2 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 85 C	EFM8BB1		Tube
8-bit Microcontrollers - MCU 8051 25 MHz 8 kB flash 0.5 kB RAM 8-bit Busy Bee MCU EFM8BB10F8I-A-SOIC16 Silicon Labs 1: $1.31 2,249In Stock	Mfr. Part No. EFM8BB10F8I-A-SOIC16 Mouser Part No 634-8BB10F8I-ASOIC16	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	2,249In Stock	$1.31 $0.978 $0.885 $0.783 View $0.733 $0.704 $0.672 $0.652 $0.637	Min.: 1 Mult.: 1	CIP-51 8051	8 kB	512 B	SOIC-16	25 MHz	12 bit	13 I/O	2.2 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 125 C	EFM8BB1		Tube
8-bit Microcontrollers - MCU 8051 25 MHz 4 kB Flash 0.5 kB RAM 8-bit Busy Bee MCU EFM8BB10F4G-A-QFN20R Silicon Labs 1: $1.20 4,518In Stock	Mfr. Part No. EFM8BB10F4G-A-QFN20R Mouser Part No 634-8BB10F4GAQF20R	Silicon Labs	8-bit Microcontrollers - MCU 8051 25 MHz 4 kB Flash 0.5 kB RAM 8-bit Busy Bee MCU Learn More about Silicon Labs siliconlabs efm8 busy bee	Datasheet	4,518In Stock	Cut Tape $1.20 $0.87 $0.783 $0.69 Reel $0.57 View $0.644 $0.618 $0.597 $0.556 MouseReel Available	Min.: 1 Mult.: 1 : 1,500	CIP-51 8051	4 kB	512 B	QFN-20	25 MHz	12 bit	16 I/O	2.2 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 85 C	EFM8BB1		Reel, Cut Tape, MouseReel
8-bit Microcontrollers - MCU 8051 25 MHz 2 kB flash 0.25 kB RAM 8-bit Busy Bee MCU EFM8BB10F2I-A-QFN20 Silicon Labs 1: $0.961 3,156In Stock	Mfr. Part No. EFM8BB10F2I-A-QFN20 Mouser Part No 634-EFM8BB10F2IAFN20	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	3,156In Stock	$0.961 $0.736 $0.663 $0.583 View $0.545 $0.522 $0.505 $0.429	Min.: 1 Mult.: 1	CIP-51 8051	2 kB	256 B	QFN-20	25 MHz	12 bit	16 I/O	2.2 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 125 C	EFM8BB1		Tube
8-bit Microcontrollers - MCU 8051 25 MHz 8 kB flash 0.5 kB RAM 8-bit Busy Bee MCU EFM8BB10F8G-A-SOIC16R Silicon Labs 1: $1.24 4,880In Stock	Mfr. Part No. EFM8BB10F8G-A-SOIC16R Mouser Part No 634-8BB10F8GASO16R	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	4,880In Stock	Cut Tape $1.24 $0.897 $0.811 $0.716 View Reel $0.537 $0.671 $0.644 $0.616 $0.537 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	CIP-51 8051	8 kB	512 B	SOIC-16	25 MHz	12 bit	13 I/O	2.2 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 85 C	EFM8BB1		Reel, Cut Tape, MouseReel
8-bit Microcontrollers - MCU 8051 25 MHz 2 kB flash 0.25 kB RAM 8-bit Busy Bee MCU EFM8BB10F2G-A-QFN20R Silicon Labs 1: $0.861 15,521In Stock	Mfr. Part No. EFM8BB10F2G-A-QFN20R Mouser Part No 634-8BB10F2GAQF20R	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	15,521In Stock	Cut Tape $0.861 $0.662 $0.591 $0.54 Reel $0.445 View $0.521 $0.48 $0.455 $0.44 MouseReel Available	Min.: 1 Mult.: 1 : 1,500	CIP-51 8051	2 kB	256 B	QFN-20	25 MHz	12 bit	16 I/O	2.2 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 85 C	EFM8BB1		Reel, Cut Tape, MouseReel
8-bit Microcontrollers - MCU 8051 25 MHz 8 kB flash 0.5 kB RAM 8-bit Busy Bee MCU EFM8BB10F8G-A-QFN20R Silicon Labs 1: $0.92 11,606In Stock 73,500On Order	Mfr. Part No. EFM8BB10F8G-A-QFN20R Mouser Part No 634-8BB10F8GAQF20R	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	11,606In Stock 73,500On Order On Order Ship Dates Mfr. No: EFM8BB10F8G-A-QFN20R Stock: 11,606 Can Dispatch Immediately On Order: 52,500 Expected 2026/10/13 21,000 Expected 2026/10/21 Factory Lead Time: 12 Weeks	Cut Tape $0.92 $0.779 $0.64 $0.598 View Reel $0.52 $0.528 $0.52 $0.52 MouseReel Available	Min.: 1 Mult.: 1 : 1,500	CIP-51 8051	8 kB	512 B	QFN-20	25 MHz	12 bit	16 I/O	2.2 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 85 C	EFM8BB1		Reel, Cut Tape, MouseReel
8-bit Microcontrollers - MCU 8051 25 MHz 4 kB Flash 0.5 kB RAM 8-bit Busy Bee MCU EFM8BB10F4G-A-QFN20 Silicon Labs 1: $1.11 218In Stock	Mfr. Part No. EFM8BB10F4G-A-QFN20 Mouser Part No 634-8BB10F4GAQF20	Silicon Labs	8-bit Microcontrollers - MCU 8051 25 MHz 4 kB Flash 0.5 kB RAM 8-bit Busy Bee MCU Learn More about Silicon Labs siliconlabs efm8 busy bee	Datasheet	218In Stock	$1.11 $0.904 $0.805 $0.79 View $0.702 $0.648 $0.637 $0.606 $0.599	Min.: 1 Mult.: 1	CIP-51 8051	4 kB	512 B	QFN-20	25 MHz	12 bit	16 I/O	2.2 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 85 C	EFM8BB1		Tube
8-bit Microcontrollers - MCU 8051 25 MHz 8 kB flash 0.5 kB RAM 8-bit Busy Bee MCU EFM8BB10F8G-A-SOIC16 Silicon Labs 1: $1.16 1,235In Stock	Mfr. Part No. EFM8BB10F8G-A-SOIC16 Mouser Part No 634-8BB10F8GASO16	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	1,235In Stock	$1.16 $0.823 $0.797 $0.723 View $0.645 $0.588 $0.566	Min.: 1 Mult.: 1	CIP-51 8051	8 kB	512 B	SOIC-16	25 MHz	12 bit	13 I/O	2.2 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 85 C	EFM8BB1		Tube
8-bit Microcontrollers - MCU 8051 25 MHz 8 kB flash 0.5 kB RAM 8-bit Busy Bee MCU EFM8BB10F8A-A-QFN20 Silicon Labs 1: $3.54 20In Stock	Mfr. Part No. EFM8BB10F8A-A-QFN20 Mouser Part No 634-FM8BB10F8AAQFN20	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	20In Stock	$3.54 $2.33 $1.87 $1.55 View $1.50 $1.40 $1.30 $1.27	Min.: 1 Mult.: 1	CIP-51 8051	8 kB	512 B		25 MHz	12 bit	16 I/O	2.2 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 125 C	EFM8BB1	AEC-Q100	Tube
8-bit Microcontrollers - MCU 8051 25 MHz 4 kB flash 0.5 kB RAM 8-bit Busy Bee MCU EFM8BB10F4I-A-QFN20 Silicon Labs 1: $1.29 244In Stock End of Life	Mfr. Part No. EFM8BB10F4I-A-QFN20 Mouser Part No 634-M8BB10F4IAQFN20 End of Life	Silicon Labs	8-bit Microcontrollers - MCU 8051 25 MHz 4 kB flash 0.5 kB RAM 8-bit Busy Bee MCU Learn More about Silicon Labs siliconlabs efm8 busy bee	Datasheet	244In Stock	$1.29 $0.935 $0.847 $0.747 View $0.70 $0.672 $0.642 $0.64 $0.633	Min.: 1 Mult.: 1	CIP-51 8051	4 kB	512 B	QFN-20	25 MHz	12 bit	16 I/O	2.2 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 125 C	EFM8BB1		Tube
8-bit Microcontrollers - MCU 8051 25 MHz 8 kB flash 0.5 kB RAM 8-bit Busy Bee MCU EFM8BB10F8G-A-QFN20 Silicon Labs 1: $1.10 2,519Expected 2026/12/04	Mfr. Part No. EFM8BB10F8G-A-QFN20 Mouser Part No 634-8BB10F8GAQF20	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	2,519Expected 2026/12/04	$1.10 $0.869 $0.787 $0.718 View $0.697 $0.618 $0.606	Min.: 1 Mult.: 1	CIP-51 8051	8 kB	512 B	QFN-20	25 MHz	12 bit	16 I/O	2.2 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 85 C	EFM8BB1		Tube
8-bit Microcontrollers - MCU 8051 25 MHz 8 kB flash 0.5 kB RAM 8-bit Busy Bee MCU EFM8BB10F8I-A-QFN20 Silicon Labs 1: $1.26 7,560Expected 2026/12/25	Mfr. Part No. EFM8BB10F8I-A-QFN20 Mouser Part No 634-FM8BB10F8IAQFN20	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	7,560Expected 2026/12/25	$1.26 $1.03 $0.911 $0.825 View $0.797 $0.737 $0.719 $0.654 $0.638	Min.: 1 Mult.: 1	CIP-51 8051	8 kB	512 B	QFN-20	25 MHz	12 bit	16 I/O	2.2 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 125 C	EFM8BB1		Tube
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: $0.671 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 $0.671 $0.663	Min.: 2,500 Mult.: 2,500 : 2,500	CIP-51 8051	8 kB	512 B	SOIC-16	25 MHz	12 bit	13 I/O	2.2 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 125 C	EFM8BB1		Reel
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: $1.31 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	$1.31 $1.29	Min.: 2,520 Mult.: 2,520	CIP-51 8051	2 kB	256 B	QFN-20	25 MHz	12 bit	16 I/O	2.2 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 125 C	EFM8BB1	AEC-Q100	Tube
8-bit Microcontrollers - MCU 8051 25 MHz 2 kB Flash 0.25 kB RAM 8-bit Busy Bee MCU EFM8BB10F2A-A-QFN20R Silicon Labs 1,500: $1.28 Non-Stocked Lead-Time 12 Weeks	Mfr. Part No. EFM8BB10F2A-A-QFN20R Mouser Part No 634-M8BB10F2AAQFN20R	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	Reel $1.28 $1.26	Min.: 1,500 Mult.: 1,500 : 1,500	CIP-51 8051	2 kB	256 B	QFN-20	25 MHz	12 bit	16 I/O	2.2 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 125 C	EFM8BB1	AEC-Q100	Reel
8-bit Microcontrollers - MCU 8051 25 MHz 2 kB flash 0.25 kB RAM 8-bit Busy Bee MCU EFM8BB10F2I-A-QFN20R Silicon Labs 1: $1.03 Non-Stocked Lead-Time 12 Weeks	Mfr. Part No. EFM8BB10F2I-A-QFN20R Mouser Part No 634-M8BB10F2IAQFN20R	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	Cut Tape $1.03 $0.736 $0.663 $0.583 Reel $0.49 View $0.545 $0.522 $0.505 $0.481	Min.: 1 Mult.: 1 : 1,500	CIP-51 8051	2 kB	256 B	QFN-20	25 MHz	12 bit	16 I/O	2.2 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 125 C	EFM8BB1		Reel, Cut Tape
8-bit Microcontrollers - MCU 8051 25 MHz 8 kB flash 0.5 kB RAM 8-bit Busy Bee MCU EFM8BB10F8A-A-QFN20R Silicon Labs 1,500: $1.33 Non-Stocked Lead-Time 12 Weeks	Mfr. Part No. EFM8BB10F8A-A-QFN20R Mouser Part No 634-M8BB10F8AAQFN20R	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 $1.33 $1.30	Min.: 1,500 Mult.: 1,500 : 1,500	CIP-51 8051	8 kB	512 B	QFN-20	25 MHz	12 bit	16 I/O	2.2 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 125 C	EFM8BB1	AEC-Q100	Reel
8-bit Microcontrollers - MCU 8051 25 MHz 8 kB flash 0.5 kB RAM 8-bit Busy Bee MCU EFM8BB10F8I-A-QFN20R Silicon Labs 1,500: $0.688 Non-Stocked Lead-Time 12 Weeks	Mfr. Part No. EFM8BB10F8I-A-QFN20R Mouser Part No 634-M8BB10F8IAQFN20R	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 $0.688 $0.682	Min.: 1,500 Mult.: 1,500 : 1,500	CIP-51 8051	8 kB	512 B	QFN-20	25 MHz	12 bit	16 I/O	2.2 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 125 C	EFM8BB1		Reel

EFM8BB1 Series 8-bit Microcontrollers - MCU

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