Microcontrollers

Use the filters and product table below to compare Microcontrollers components by manufacturer, availability, pricing reference and technical specifications. Review datasheets and key parameters to narrow the selection for your application.

If you already have a target part number, package, rating or quantity, send the requirement to Winsun (HK) Electronics for availability checks, BOM sourcing, shortage support and quotation assistance.

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Mfr. Part #	Availability	Price	Quantity	Datasheet	Package/Case	Series	Packaging	Product Status	Programmable	Core Processor	Core Size	Speed	Connectivity	Peripherals	Number of I/O	Program Memory Size	Program Memory Type	EEPROM Size	RAM Size	Voltage - Supply (Vcc/Vdd)	Data Converters	Oscillator Type	Operating Temperature	Grade	Qualification	Mounting Type
C8051F861-C-IS IC MCU 8BIT 4KB FLASH 16SOIC Silicon Labs	4,398	-	RFQ	Datasheet	16-SOIC (0.154", 3.90mm Width)	C8051F86x	Tube	Obsolete	Not Verified	8051	8-Bit	25MHz	I2C, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	13	4KB (4K x 8)	FLASH	-	512 x 8	2.2V ~ 3.6V	A/D 12x12b	Internal	-40°C ~ 125°C (TA)	-	-	Surface Mount
C8051F989-C-GU IC MCU 8BIT 4KB FLASH 24QSOP Silicon Labs	1,006	-	RFQ	Datasheet	24-SSOP (0.154", 3.90mm Width)	C8051F9xx	Tube	Obsolete	Not Verified	CIP-51 8051	8-Bit	25MHz	SMBus (2-Wire/I2C), SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	17	4KB (4K x 8)	FLASH	-	512 x 8	1.8V ~ 3.6V	-	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount
EFM8BB31F64I-D-QSOP24 IC MCU 8BIT 64KB FLASH 24QSOP Silicon Labs	2,838	-	RFQ	Datasheet	24-SSOP (0.154", 3.90mm Width)	Busy Bee	Tube	Obsolete	Not Verified	CIP-51 8051	8-Bit	50MHz	I2C, SMBus, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	21	64KB (64K x 8)	FLASH	-	4.25K x 8	2.2V ~ 3.6V	A/D 13x12b; D/A 2x12b	Internal	-40°C ~ 125°C (TA)	-	-	Surface Mount
EFM32HG110F32G-B-QFN24 IC MCU 32BIT 32KB FLASH 24QFN Silicon Labs	3,675	-	RFQ	Datasheet	24-VQFN Exposed Pad	Happy Gecko	Tray	Obsolete	Not Verified	ARM® Cortex®-M0+	32-Bit Single-Core	25MHz	I2C, IrDA, SmartCard, SPI, UART/USART	Brown-out Detect/Reset, DMA, I2S, POR, PWM, WDT	17	32KB (32K x 8)	FLASH	-	4K x 8	1.98V ~ 3.8V	A/D 4x12b	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount
EFM8LB11F32ES0-B-QFN24 IC MCU 8BIT 32KB FLASH 24QFN Silicon Labs	4,309	-	RFQ	Datasheet	24-VFQFN Exposed Pad	Laser Bee	Tube	Obsolete	Not Verified	CIP-51 8051	8-Bit	72MHz	I2C, SMBus, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	20	32KB (32K x 8)	FLASH	-	2.25K x 8	2.2V ~ 3.6V	A/D 12x14b; D/A 2x12b	Internal	-40°C ~ 105°C (TA)	-	-	Surface Mount
EFM8SB10F4G-A-QFN20R IC MCU 8BIT 4KB FLASH 20QFN Silicon Labs	3,377	-	RFQ	Datasheet	20-UFQFN Exposed Pad	Sleepy Bee	Tape & Reel (TR)	Active	Not Verified	CIP-51 8051	8-Bit	25MHz	I2C, SMBus, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	16	4KB (4K x 8)	FLASH	-	512 x 8	1.8V ~ 3.6V	A/D 9x12b	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount
C8051F820-GM IC MCU 8BIT 8KB FLASH 20QFN Silicon Labs	2,351	-	RFQ	Datasheet	20-VFQFN Exposed Pad	C8051F82x	Tube	Obsolete	Not Verified	8051	8-Bit	25MHz	SMBus (2-Wire/I2C), SPI, UART/USART	POR, PWM, WDT	17	8KB (8K x 8)	FLASH	-	512 x 8	1.8V ~ 3.6V	-	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount
C8051F820-GMR IC MCU 8BIT 8KB FLASH 20QFN Silicon Labs	3,079	-	RFQ	Datasheet	20-VFQFN Exposed Pad	C8051F82x	Tape & Reel (TR)	Obsolete	Not Verified	8051	8-Bit	25MHz	SMBus (2-Wire/I2C), SPI, UART/USART	POR, PWM, WDT	17	8KB (8K x 8)	FLASH	-	512 x 8	1.8V ~ 3.6V	-	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount
C8051F853-C-IMR IC MCU 8BIT 8KB FLASH 20QFN Silicon Labs	3,346	-	RFQ	Datasheet	20-VFQFN Exposed Pad	C8051F85x	Tape & Reel (TR)	Obsolete	Not Verified	8051	8-Bit	25MHz	I2C, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	15	8KB (8K x 8)	FLASH	-	512 x 8	2.2V ~ 3.6V	-	Internal	-40°C ~ 125°C (TA)	-	-	Surface Mount
EFM8BB31F32I-B-QFP32R IC MCU 8BIT 32KB FLASH 32QFP Silicon Labs	2,492	-	RFQ	Datasheet	32-TQFP	Busy Bee	Tape & Reel (TR)	Not For New Designs	Not Verified	CIP-51 8051	8-Bit	50MHz	I2C, SMBus, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	28	32KB (32K x 8)	FLASH	-	2.25K x 8	2.2V ~ 3.6V	A/D 20x10/12b SAR; D/A 2x12b	Internal	-40°C ~ 125°C (TA)	-	-	Surface Mount

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FREQUENTLY ASKED QUESTIONS

Microcontrollers FAQ

Common questions about filtering, comparing and sourcing Microcontrollers components.

How can I narrow the Microcontrollers selection?

Use the available manufacturer and technical parameter filters to reduce the product list. Compare the remaining part numbers against your electrical, package and application requirements.

Should I confirm the datasheet before selecting a part?

Yes. Always review the manufacturer datasheet to confirm ratings, package, operating conditions and other technical details before finalizing a component for your design.

Can Winsun (HK) Electronics help source a specific Microcontrollers part number?

Yes. Send the exact manufacturer part number and required quantity for availability, lead-time and quotation support.

Do you support BOM, shortage or alternative-part requirements?

Yes. You can submit a BOM or shortage list for sourcing assistance. Where appropriate, our team can also help review possible alternative-part options.