8-bit Microcontrollers - MCU

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EFM8BB51 & EFM8BB52 Busy Bee 8-bit MCUs

Silicon Labs EFM8BB51 and EFM8BB52 Busy Bee MCUs are multi-purpose microcontrollers with a comprehensive feature set in compact packages. These devices offer high value by integrating advanced analogue and communication peripherals into a small footprint, making them ideal for space-constrained applications. With an efficient 8051 core, 5V capable I/O, precision analogue and enhanced pulse-width modulation, the EFM8BB51 and EFM8BB52 MCUs are optimal for embedded applications.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (EUR) Filter the results in the table by unit price based on your quantity.	Qty.	Program Memory Size	Data RAM Size	Package/Case	ADC Resolution	Number of I/Os	Supply Voltage - Min	Supply Voltage - Max	Mounting Style	Minimum Operating Temperature	Maximum Operating Temperature	Packaging
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 32 kB flash 2.304 kB RAM 29 GPIO BB5 8-bit MCU EFM8BB52F32I-C-QFN32R Silicon Labs 1: €1.04 11,275In Stock	Mfr. Part No. EFM8BB52F32I-C-QFN32R Mouser Part No 634-EFM852F32IQFN32R	Silicon Labs	8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 32 kB flash 2.304 kB RAM 29 GPIO BB5 8-bit MCU Learn More about Silicon Labs silabs efm8bb51 efm8bb52 busy bee mcus	Datasheet	11,275In Stock	Cut Tape €1.04 €0.748 €0.673 €0.593 Reel €0.49 View €0.554 €0.531 €0.513 €0.478	Min.: 1 Mult.: 1 : 2,500	16 kB	1.28 kB	QFN-32		16 I/O	1.8 V	5.5 V	SMD/SMT	- 40 C	+ 85 C	Reel, Cut Tape
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 25 GPIO BB5 8-bit MCU EFM8BB52F16G-C-TSSOP28 Silicon Labs 1: €1.03 8,033In Stock	Mfr. Part No. EFM8BB52F16G-C-TSSOP28 Mouser Part No 634-EFM852F16GTSOP28	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	8,033In Stock	€1.03 €0.747 €0.677 €0.598 View €0.56 €0.537 €0.513 €0.499 €0.487	Min.: 1 Mult.: 1	16 kB	1.28 kB	TSSOP-28		25 I/O	1.8 V	5.5 V	SMD/SMT	- 40 C	+ 85 C	Cut Tape
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 8 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU EFM8BB51F8I-C-TSSOP20 Silicon Labs 1: €0.98 166In Stock	Mfr. Part No. EFM8BB51F8I-C-TSSOP20 Mouser Part No 634-EFM851F8ICTSOP20	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	166In Stock	€0.98 €0.709 €0.638 €0.562 View €0.525 €0.502 €0.487 €0.465 €0.453	Min.: 1 Mult.: 1	8 kB	1.28 kB	TSSOP-20		16 I/O	1.8 V	5.5 V	SMD/SMT	- 40 C	+ 125 C	Cut Tape
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 25 GPIO BB5 8-bit MCU EFM8BB52F16I-C-TSSOP28R Silicon Labs 1: €1.02 2,435In Stock	Mfr. Part No. EFM8BB52F16I-C-TSSOP28R Mouser Part No 634-EFM852F16ITOP28R	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	2,435In Stock	Cut Tape €1.02 €0.747 €0.676 €0.597 Reel €0.499 View €0.56 €0.537 €0.513 €0.487	Min.: 1 Mult.: 1 : 2,500	16 kB	1.28 kB	TSSOP-28		16 I/O	1.8 V	5.5 V	SMD/SMT	- 40 C	+ 85 C	Reel, Cut Tape
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 32 kB flash 2.304 kB RAM 29 GPIO BB5 8-bit MCU EFM8BB52F32G-C-QFN32 Silicon Labs 1: €0.834 1,681In Stock	Mfr. Part No. EFM8BB52F32G-C-QFN32 Mouser Part No 634-EFM852F32GCQFN32	Silicon Labs	8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 32 kB flash 2.304 kB RAM 29 GPIO BB5 8-bit MCU Learn More about Silicon Labs silabs efm8bb51 efm8bb52 busy bee mcus	Datasheet	1,681In Stock	€0.834 €0.595 €0.536 €0.471 View €0.439 €0.421 €0.408 €0.403	Min.: 1 Mult.: 1	32 kB	2.25 kB	QFN-32		16 I/O	1.8 V	5.5 V	SMD/SMT	- 40 C	+ 85 C	Cut Tape
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 32 kB flash 2.304 kB RAM 16 GPIO BB5 8-bit MCU EFM8BB52F32I-C-QFN20R Silicon Labs 1: €1.01 Non-Stocked Lead-Time 24 Weeks	Mfr. Part No. EFM8BB52F32I-C-QFN20R Mouser Part No 634-EFM852F32IQFN20R	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	Cut Tape €1.01 €0.729 €0.656 €0.577 Reel €0.477 View €0.54 €0.517 €0.501 €0.465	Min.: 1 Mult.: 1 : 2,500	16 kB	1.28 kB	QFN-20		16 I/O	1.8 V	5.5 V	SMD/SMT	- 40 C	+ 85 C	Reel, Cut Tape
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU EFM8BB51F16I-C-QFN20R Silicon Labs 1: €0.955 12,398In Stock	Mfr. Part No. EFM8BB51F16I-C-QFN20R Mouser Part No 634-EFM851F16IQFN20R	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	12,398In Stock	Cut Tape €0.955 €0.814 €0.714 €0.655 Reel €0.463 View €0.61 €0.558 €0.511 €0.413	Min.: 1 Mult.: 1 : 2,500	16 kB	1.28 kB	QFN-20		16 I/O	1.8 V	5.5 V	SMD/SMT	- 40 C	+ 85 C	Reel, Cut Tape
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 32 kB flash 2.304 kB RAM 29 GPIO BB5 8-bit MCU EFM8BB52F32G-C-QFN32R Silicon Labs 1: €0.955 4,000In Stock	Mfr. Part No. EFM8BB52F32G-C-QFN32R Mouser Part No 634-EFM852F32GQFN32R	Silicon Labs	8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 32 kB flash 2.304 kB RAM 29 GPIO BB5 8-bit MCU Learn More about Silicon Labs silabs efm8bb51 efm8bb52 busy bee mcus	Datasheet	4,000In Stock	Cut Tape €0.955 €0.69 €0.621 €0.546 Reel €0.452 View €0.511 €0.488 €0.473 €0.441	Min.: 1 Mult.: 1 : 2,500	16 kB	1.28 kB	QFN-32		16 I/O	1.8 V	5.5 V	SMD/SMT	- 40 C	+ 85 C	Reel, Cut Tape
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU EFM8BB51F16G-C-TSSOP20 Silicon Labs 1: €0.86 1,452In Stock	Mfr. Part No. EFM8BB51F16G-C-TSSOP20 Mouser Part No 634-EFM8516GCTSSOP20	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	1,452In Stock	€0.86 €0.68 €0.67 €0.617 View €0.477 €0.465	Min.: 1 Mult.: 1	16 kB	1.28 kB	TSSOP-20		16 I/O	1.8 V	5.5 V	SMD/SMT	- 40 C	+ 85 C	Cut Tape
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU EFM8BB51F16G-C-QFN20 Silicon Labs 1: €0.929 151In Stock	Mfr. Part No. EFM8BB51F16G-C-QFN20 Mouser Part No 634-EFM851F16GCQFN20	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	151In Stock	€0.929 €0.671 €0.604 €0.531 View €0.496 €0.476 €0.46 €0.439 €0.429	Min.: 1 Mult.: 1	16 kB	1.28 kB	QFN-20		16 I/O	1.8 V	5.5 V	SMD/SMT	- 40 C	+ 85 C	Cut Tape
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU EFM8BB51F16G-C-QFN20R Silicon Labs 1: €0.80 1,016In Stock 7,500On Order	Mfr. Part No. EFM8BB51F16G-C-QFN20R Mouser Part No 634-EFM851F16GQFN20R	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	1,016In Stock 7,500On Order	Cut Tape €0.80 €0.575 €0.519 €0.456 View Reel €0.408 €0.427 €0.409 €0.408	Min.: 1 Mult.: 1 : 2,500	16 kB	1.28 kB	QFN-20		16 I/O	1.8 V	5.5 V	SMD/SMT	- 40 C	+ 85 C	Reel, Cut Tape
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU EFM8BB51F16I-C-QFN20 Silicon Labs 1: €0.98 194In Stock	Mfr. Part No. EFM8BB51F16I-C-QFN20 Mouser Part No 634-EFM851F16ICQFN20	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	194In Stock	€0.98 €0.709 €0.638 €0.562 View €0.525 €0.502 €0.487 €0.465 €0.453	Min.: 1 Mult.: 1	16 kB	1.28 kB	QFN-20		16 I/O	1.8 V	5.5 V	SMD/SMT	- 40 C	+ 85 C	Cut Tape
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU EFM8BB51F16I-C-TSSOP20 Silicon Labs 1: €1.02 146In Stock	Mfr. Part No. EFM8BB51F16I-C-TSSOP20 Mouser Part No 634-EFM851F16TSSOP20	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	146In Stock	€1.02 €0.747 €0.676 €0.597 View €0.56 €0.537 €0.513 €0.499 €0.487	Min.: 1 Mult.: 1	16 kB	1.28 kB	TSSOP-20		16 I/O	1.8 V	5.5 V	SMD/SMT	- 40 C	+ 85 C	Cut Tape
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 8 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU EFM8BB51F8G-C-TSSOP20 Silicon Labs 1: €0.955 297In Stock	Mfr. Part No. EFM8BB51F8G-C-TSSOP20 Mouser Part No 634-EFM851F8GCTSOP20	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	297In Stock	€0.955 €0.69 €0.621 €0.546 View €0.511 €0.488 €0.473 €0.452 €0.441	Min.: 1 Mult.: 1	16 kB	1.28 kB	TSSOP-20		16 I/O	1.8 V	5.5 V	SMD/SMT	- 40 C	+ 85 C	Cut Tape
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU EFM8BB52F16G-C-QFN20 Silicon Labs 1: €0.791 234In Stock	Mfr. Part No. EFM8BB52F16G-C-QFN20 Mouser Part No 634-EFM852F16GCQFN20	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	234In Stock	€0.791 €0.63 €0.449 €0.429 View €0.412 €0.395 €0.384	Min.: 1 Mult.: 1	16 kB	1.28 kB	QFN-20		16 I/O	1.8 V	5.5 V	SMD/SMT	- 40 C	+ 85 C	Cut Tape
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 29 GPIO BB5 8-bit MCU EFM8BB52F16G-C-QFN32 Silicon Labs 1: €0.834 722In Stock 400On Order	Mfr. Part No. EFM8BB52F16G-C-QFN32 Mouser Part No 634-EFM852F16GCQFN32	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	722In Stock 400On Order	€0.834 €0.64 €0.624 €0.557 View €0.513 €0.418	Min.: 1 Mult.: 1	16 kB	1.28 kB	QFN-32	12 bit	29I/O	1.8 V	5.5 V	SMD/SMT	- 40 C	+ 85 C	Cut Tape
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU EFM8BB52F16G-C-QFN20R Silicon Labs 1: €0.826 874In Stock	Mfr. Part No. EFM8BB52F16G-C-QFN20R Mouser Part No 634-EFM852F16GQFN20R	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	874In Stock	Cut Tape €0.826 €0.594 €0.535 €0.47 Reel €0.39 View €0.439 €0.421 €0.408 €0.38	Min.: 1 Mult.: 1 : 2,500	16 kB	1.28 kB	QFN-20		16 I/O	1.8 V	5.5 V	SMD/SMT	- 40 C	+ 85 C	Reel, Cut Tape
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 32 kB flash 2.304 kB RAM 29 GPIO BB5 8-bit MCU EFM8BB52F32I-C-QFN32 Silicon Labs 1: €1.03 606In Stock	Mfr. Part No. EFM8BB52F32I-C-QFN32 Mouser Part No 634-EFM852F32ICQFN32	Silicon Labs	8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 32 kB flash 2.304 kB RAM 29 GPIO BB5 8-bit MCU Learn More about Silicon Labs silabs efm8bb51 efm8bb52 busy bee mcus	Datasheet	606In Stock	€1.03 €0.877 €0.77 €0.688 View €0.635 €0.514 €0.491 €0.479	Min.: 1 Mult.: 1	16 kB	1.28 kB	QFN-32		16 I/O	1.8 V	5.5 V	SMD/SMT	- 40 C	+ 85 C	Cut Tape
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 32 kB flash 2.304 kB RAM 16 GPIO BB5 8-bit MCU EFM8BB52F32I-C-TSSOP20 Silicon Labs 1: €1.10 402In Stock	Mfr. Part No. EFM8BB52F32I-C-TSSOP20 Mouser Part No 634-EFM852F32ICTOP20	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	402In Stock	€1.10 €0.859 €0.817 €0.617 View €0.59 €0.574 €0.56	Min.: 1 Mult.: 1	16 kB	1.28 kB	TSSOP-20		16 I/O	1.8 V	5.5 V	SMD/SMT	- 40 C	+ 85 C	Cut Tape
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 8 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU EFM8BB51F8G-C-QFN20 Silicon Labs 1: €0.851 294In Stock	Mfr. Part No. EFM8BB51F8G-C-QFN20 Mouser Part No 634-EFM8B51F8GCQFN20	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	294In Stock	€0.851 €0.613 €0.552 €0.485 View €0.454 €0.434 €0.421 €0.402 €0.392	Min.: 1 Mult.: 1	16 kB	1.28 kB	QFN-20		16 I/O	1.8 V	5.5 V	SMD/SMT	- 40 C	+ 85 C	Cut Tape
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 29 GPIO BB5 8-bit MCU EFM8BB52F16I-C-QFN32 Silicon Labs 1: €0.826 1,045In Stock 2,200On Order	Mfr. Part No. EFM8BB52F16I-C-QFN32 Mouser Part No 634-EFMB52F16ICQFN32	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	1,045In Stock 2,200On Order	€0.826 €0.576 €0.517 €0.452 View €0.42 €0.412 €0.411	Min.: 1 Mult.: 1	16 kB	1.28 kB	QFN-32		16 I/O	1.8 V	5.5 V	SMD/SMT	- 40 C	+ 85 C	Cut Tape
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU EFM8BB52F16G-C-TSSOP20 Silicon Labs 1: €0.98 179Expected 27/10/2026	Mfr. Part No. EFM8BB52F16G-C-TSSOP20 Mouser Part No 634-EFM852F16GCTOP20	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	179Expected 27/10/2026	€0.98 €0.709 €0.638 €0.562 View €0.525 €0.502 €0.487 €0.465 €0.453	Min.: 1 Mult.: 1	16 kB	1.28 kB	TSSOP-20		16 I/O	1.8 V	5.5 V	SMD/SMT	- 40 C	+ 85 C	Cut Tape
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU EFM8BB52F16I-C-TSSOP20 Silicon Labs 1: €1.01 198Expected 01/01/2027	Mfr. Part No. EFM8BB52F16I-C-TSSOP20 Mouser Part No 634-EFM852F16ITSOP20	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	198Expected 01/01/2027	€1.01 €0.728 €0.655 €0.576 View €0.539 €0.516 €0.50 €0.477 €0.465	Min.: 1 Mult.: 1	16 kB	1.28 kB	TSSOP-20		16 I/O	1.8 V	5.5 V	SMD/SMT	- 40 C	+ 85 C	Cut Tape
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 32 kB flash 2.304 kB RAM 16 GPIO BB5 8-bit MCU EFM8BB52F32G-C-TSSOP20 Silicon Labs 1: €1.15 197Expected 18/12/2026	Mfr. Part No. EFM8BB52F32G-C-TSSOP20 Mouser Part No 634-EFM852F32GCTOP20	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	197Expected 18/12/2026	€1.15 €0.84 €0.76 €0.672 View €0.63 €0.605 €0.577 €0.561 €0.548	Min.: 1 Mult.: 1	16 kB	1.28 kB	TSSOP-20		16 I/O	1.8 V	5.5 V	SMD/SMT	- 40 C	+ 85 C	Cut Tape
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 32 kB flash 2.304 kB RAM 25 GPIO BB5 8-bit MCU EFM8BB52F32I-C-TSSOP28 Silicon Labs 1: €1.21 199Expected 04/12/2026	Mfr. Part No. EFM8BB52F32I-C-TSSOP28 Mouser Part No 634-EFM852F32ICTOP28	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	199Expected 04/12/2026	€1.21 €0.946 €0.839 €0.754 View €0.729 €0.683 €0.667 €0.658 €0.65	Min.: 1 Mult.: 1	16 kB	1.28 kB	TSSOP-28		16 I/O	1.8 V	5.5 V	SMD/SMT	- 40 C	+ 85 C	Cut Tape

EFM8BB51 & EFM8BB52 Busy Bee 8-bit MCUs

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EFM8BB51 & EFM8BB52 Busy Bee 8-bit MCUs

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