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8051 microcontroller Embedded Processors & Controllers

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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.	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
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	8-bit Microcontrollers - MCU	SMD/SMT	QFN-32	CIP-51 8051	8 bit	50 MHz	16 kB	2.3 kB	10 bit, 12 bit	29 I/O	- 40 C	+ 125 C		Tube
8-bit Microcontrollers - MCU 64K Flash 67MHz 8051 0.5V to 5.5V CY8C3666AXI-036 Infineon Technologies 1: $19.89 Non-Stocked Lead-Time 10 Weeks	Mfr. Part No. CY8C3666AXI-036 Mouser Part No 727-CY8C3666AXI-036	Infineon Technologies	8-bit Microcontrollers - MCU 64K Flash 67MHz 8051 0.5V to 5.5V Learn More about Infineon Technologies cypresspsoc3	Datasheet	Non-Stocked Lead-Time 10 Weeks	$19.89 $15.96 $13.88 $13.44 View $12.47 $11.77 Quote	Min.: 1 Mult.: 1	8-bit Microcontrollers - MCU	SMD/SMT	TQFP-100	8051	8 bit	67 MHz	64 kB	8 kB	12 bit	28 I/O		+ 85 C		Tray
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 32 kB flash 2.304 kB RAM 25 GPIO BB5 8-bit MCU EFM8BB52F32I-C-TSSOP28R Silicon Labs 2,500: $0.681 Non-Stocked Lead-Time 24 Weeks	Mfr. Part No. EFM8BB52F32I-C-TSSOP28R Mouser Part No 634-EFMB52F32ITOP28R	Silicon Labs	8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 32 kB flash 2.304 kB RAM 25 GPIO BB5 8-bit MCU Learn More about Silicon Labs silabs efm8bb51 efm8bb52 busy bee mcus	Datasheet	Non-Stocked Lead-Time 24 Weeks	Reel $0.681 $0.665	Min.: 2,500 Mult.: 2,500 : 2,500	8-bit Microcontrollers - MCU	SMD/SMT	TSSOP-28				16 kB	1.28 kB		16 I/O	- 40 C	+ 85 C		Reel
RF Microcontrollers - MCU RF+MCU 8051 25 MHz 64 kB +20 dBm SI1061-A-GMR Silicon Labs 2,500: $6.55 Non-Stocked Lead-Time 12 Weeks	Mfr. Part No. SI1061-A-GMR Mouser Part No 634-SI1061-A-GMR	Silicon Labs	RF Microcontrollers - MCU RF+MCU 8051 25 MHz 64 kB +20 dBm Learn More about Silicon Labs siliconlabssi100x	Datasheet	Non-Stocked Lead-Time 12 Weeks	Reel $6.55	Min.: 2,500 Mult.: 2,500 : 2,500	RF Microcontrollers - MCU	SMD/SMT	QFN-36	8051	8 bit	25 MHz	32 kB	4 kB	10 bit	11 I/O	- 40 C	+ 85 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-QFN16R Silicon Labs 3,000: $0.511 Non-Stocked Lead-Time 12 Weeks	Mfr. Part No. EFM8BB50F16I-A-QFN16R Mouser Part No 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 $0.511 $0.499	Min.: 3,000 Mult.: 3,000 : 3,000	8-bit Microcontrollers - MCU	SMD/SMT	QFN-16		8 bit	50 MHz	16 kB	512 B	12 bit	12 I/O	- 40 C	+ 125 C		Reel
8-bit Microcontrollers - MCU 8051 50 MHz 16 kB 8-bit MCU C8051F413-GMR Silicon Labs 1: $14.19 391In Stock NRND	Mfr. Part No. C8051F413-GMR Mouser Part No 634-C8051F413-GMR NRND	Silicon Labs	8-bit Microcontrollers - MCU 8051 50 MHz 16 kB 8-bit MCU	Datasheet	391In Stock	Cut Tape $14.19 $11.11 $10.34 $9.50 View Reel $8.19 $9.40 $8.85 $8.65 $8.19 Quote	Min.: 1 Mult.: 1 : 2,500	8-bit Microcontrollers - MCU	SMD/SMT	QFN-28	8051	8 bit	50 MHz	16 kB	2.31 kB	12 bit	20 I/O	- 40 C	+ 85 C		Reel, Cut Tape
8-bit Microcontrollers - MCU 8051 25 MHz 2 kB flash 0.25 kB RAM 8-bit Busy Bee MCU EFM8BB10F2I-A-QFN20R Silicon Labs 2,500: $0.511 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	Reel $0.511 $0.499	Min.: 2,500 Mult.: 2,500 : 2,500	8-bit Microcontrollers - MCU	SMD/SMT	QFN-20	CIP-51 8051	8 bit	25 MHz	2 kB	256 B	12 bit	16 I/O	- 40 C	+ 125 C		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: $1.40 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	Cut Tape $1.40 $1.02 $0.923 $0.816 Reel $0.681 View $0.765 $0.734 $0.701 $0.665	Min.: 1 Mult.: 1 : 2,500	8-bit Microcontrollers - MCU	SMD/SMT	QFN-20	CIP-51 8051	8 bit	25 MHz	8 kB	512 B	12 bit	16 I/O	- 40 C	+ 125 C		Reel, 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-QFN12R Silicon Labs 1: $1.02 Non-Stocked Lead-Time 12 Weeks	Mfr. Part No. EFM8BB50F16I-A-QFN12R Mouser Part No 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 $1.02 $0.735 $0.662 $0.582 Reel $0.482 View $0.544 $0.521 $0.504 $0.47 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	8-bit Microcontrollers - MCU	SMD/SMT	QFN-12		8 bit	50 MHz	16 kB	512 B	12 bit	9 I/O	- 40 C	+ 125 C		Reel, Cut Tape, MouseReel
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 32 kB flash 2.304 kB RAM 16 GPIO BB5 8-bit MCU EFM8BB52F32I-C-TSSOP20R Silicon Labs 2,500: $0.667 Non-Stocked Lead-Time 24 Weeks	Mfr. Part No. EFM8BB52F32I-C-TSSOP20R Mouser Part No 634-EFM852F32ITOP20R	Silicon Labs	8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 32 kB flash 2.304 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 $0.667 $0.651	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 5 Volt 8051 50 Mhz 32 kB flash 2.304 kB RAM 25 GPIO BB5 8-bit MCU EFM8BB52F32G-C-TSSOP28 Silicon Labs 1: $1.37 Non-Stocked Lead-Time 24 Weeks	Mfr. Part No. EFM8BB52F32G-C-TSSOP28 Mouser Part No 634-EFM852F32GCTOP28	Silicon Labs	8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 32 kB flash 2.304 kB RAM 25 GPIO BB5 8-bit MCU Learn More about Silicon Labs silabs efm8bb51 efm8bb52 busy bee mcus	Datasheet	Non-Stocked Lead-Time 24 Weeks	$1.37 $0.99 $0.904 $0.799 View $0.748 $0.718 $0.686 $0.667 $0.651	Min.: 1 Mult.: 1	8-bit Microcontrollers - MCU	SMD/SMT	TSSOP-28				16 kB	1.28 kB		16 I/O	- 40 C	+ 85 C		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 2,500: $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 $1.29	Min.: 2,500 Mult.: 2,500 : 2,500	8-bit Microcontrollers - MCU	SMD/SMT	QFN-20	CIP-51 8051	8 bit	25 MHz	8 kB	512 B	12 bit	16 I/O	- 40 C	+ 125 C	AEC-Q100	Reel
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 8 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU EFM8BB51F8I-C-QFN20R Silicon Labs 1: $1.08 Non-Stocked Lead-Time 24 Weeks	Mfr. Part No. EFM8BB51F8I-C-QFN20R Mouser Part No 634-EFM851F8ICQFN20R	Silicon Labs	8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 8 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 $1.08 $0.78 $0.702 $0.617 Reel $0.511 View $0.577 $0.553 $0.535 $0.499	Min.: 1 Mult.: 1 : 2,500	8-bit Microcontrollers - MCU	SMD/SMT	QFN-20				16 kB	1.28 kB		16 I/O	- 40 C	+ 85 C		Reel, Cut Tape
8-bit Microcontrollers - MCU 8051 50 MHz 32 kB 5 V 8-bit MCU C8051F507-IM Silicon Labs 1: $10.90 583In Stock NRND	Mfr. Part No. C8051F507-IM Mouser Part No 634-C8051F507-IM NRND	Silicon Labs	8-bit Microcontrollers - MCU 8051 50 MHz 32 kB 5 V 8-bit MCU	Datasheet	583In Stock	$10.90 $8.64 $7.86 $7.36 View $6.99 $6.85 $6.70 Quote	Min.: 1 Mult.: 1	8-bit Microcontrollers - MCU	SMD/SMT	QFN-32	8051	8 bit	50 MHz	32 kB	4.25 kB	12 bit	25 I/O	- 40 C	+ 125 C	AEC-Q100	Tube
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 25 GPIO BB5 8-bit MCU EFM8BB52F16G-C-TSSOP28R Silicon Labs 2,500: $0.58 Non-Stocked Lead-Time 24 Weeks	Mfr. Part No. EFM8BB52F16G-C-TSSOP28R Mouser Part No 634-EFM852F16GTOP28R	Silicon Labs	8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 25 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-28				16 kB	1.28 kB		16 I/O	- 40 C	+ 85 C		Reel
RF Microcontrollers - MCU RF+MCU 8051 25 MHz 16 kB +20 dBm SI1060-A-GMR Silicon Labs 2,500: $7.02 Non-Stocked Lead-Time 12 Weeks	Mfr. Part No. SI1060-A-GMR Mouser Part No 634-SI1060-A-GMR	Silicon Labs	RF Microcontrollers - MCU RF+MCU 8051 25 MHz 16 kB +20 dBm Learn More about Silicon Labs siliconlabssi100x	Datasheet	Non-Stocked Lead-Time 12 Weeks	Reel $7.02	Min.: 2,500 Mult.: 2,500 : 2,500	RF Microcontrollers - MCU	SMD/SMT	QFN-36	8051	8 bit	25 MHz	64 kB	4 kB	10 bit	11 I/O	- 40 C	+ 85 C		Reel
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	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	+ 125 C		Reel, Cut Tape
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	8-bit Microcontrollers - MCU	SMD/SMT	QFN-32	CIP-51 8051	8 bit	50 MHz	16 kB	2.3 kB	10 bit, 12 bit	29 I/O	- 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	8-bit Microcontrollers - MCU	SMD/SMT	QFN-32	CIP-51 8051	8 bit	50 MHz	16 kB	2.3 kB	10 bit, 12 bit	29 I/O	- 40 C	+ 125 C		Tube
8-bit Microcontrollers - MCU 8051 25 MHz 8 kB flash 0.5 kB RAM 8-bit Sleepy Bee MCU EFM8SB10F8A-A-QFN24R Silicon Labs 2,500: $1.86 Non-Stocked Lead-Time 12 Weeks	Mfr. Part No. EFM8SB10F8A-A-QFN24R Mouser Part No 634-M8SB10F8AAQFN24R	Silicon Labs	8-bit Microcontrollers - MCU 8051 25 MHz 8 kB flash 0.5 kB RAM 8-bit Sleepy Bee MCU Learn More about Silicon Labs silabs efm8 sleepy bee	Datasheet	Non-Stocked Lead-Time 12 Weeks	Reel $1.86 $1.82	Min.: 2,500 Mult.: 2,500 : 2,500	8-bit Microcontrollers - MCU	SMD/SMT	QFN-24	CIP-51 8051	8 bit	25 MHz	8 kB	512 B	12 bit	17 I/O	- 40 C	+ 85 C	AEC-Q100	Reel
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 29 GPIO BB5 8-bit MCU EFM8BB52F16G-C-QFN32R Silicon Labs 1: $0.96 Non-Stocked Lead-Time 24 Weeks	Mfr. Part No. EFM8BB52F16G-C-QFN32R Mouser Part No 634-EFM852F16GQFN32R	Silicon Labs	8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 29 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 $0.96 $0.691 $0.622 $0.547 Reel $0.453 View $0.511 $0.489 $0.474 $0.442	Min.: 1 Mult.: 1 : 2,500	8-bit Microcontrollers - MCU	SMD/SMT	QFN-32				16 kB	1.28 kB		29 I/O	- 40 C	+ 85 C		Reel, Cut Tape
8-bit Microcontrollers - MCU 8051 75 MHz 32 kB flash 2.25 kB RAM 8-bit Laser Bee MCU EFM8LB12F32E-C-QFN32R Silicon Labs 2,500: $1.64 Non-Stocked Lead-Time 26 Weeks	Mfr. Part No. EFM8LB12F32E-C-QFN32R Mouser Part No 634-LB12F32ECQFN32R	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 $1.64	Min.: 2,500 Mult.: 2,500 : 2,500	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		Reel
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	8-bit Microcontrollers - MCU	SMD/SMT	QFN-32	CIP-51 8051	8 bit	50 MHz	16 kB	2.3 kB	10 bit, 12 bit	29 I/O	- 40 C	+ 125 C		Reel, Cut Tape
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: $1.30 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	$1.30 $1.26	Min.: 2,520 Mult.: 2,520	8-bit Microcontrollers - MCU	SMD/SMT	QFN-20	CIP-51 8051	8 bit	25 MHz	2 kB	256 B	12 bit	16 I/O	- 40 C	+ 125 C	AEC-Q100	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	8-bit Microcontrollers - MCU	SMD/SMT	QFN-24	CIP-51 8051	8 bit	50 MHz	64 kB	4.35 kB	10 bit, 12 bit	20 I/O	- 40 C	+ 125 C		Reel