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.

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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
EFM8SB20F16G-B-QFN24R IC MCU 8BIT 16KB FLASH 24QFN Silicon Labs	1,748	-	RFQ	Datasheet	24-WFQFN Exposed Pad	Sleepy Bee	Tape & Reel (TR)	Active	Not Verified	CIP-51 8051	8-Bit	25MHz	EBI/EMI, I2C, SMBus, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	16	16KB (16K x 8)	FLASH	-	4.25K x 8	1.8V ~ 3.6V	A/D 15x10b	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount
EFM8BB22F16A-C-QFN28 IC MCU 8BIT 16KB FLASH 28QFN Silicon Labs	2,445	-	RFQ	Datasheet	28-WFQFN Exposed Pad	Busy Bee	Tube	Active	Not Verified	CIP-51 8051	8-Bit	50MHz	I2C, SMBus, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	22	16KB (16K x 8)	FLASH	-	2.25K x 8	2.2V ~ 3.6V	A/D 20x12b	Internal	-40°C ~ 125°C (TA)	-	-	Surface Mount
EFM8BB31F64G-C-QFP32 IC MCU 8BIT 64KB FLASH 32QFP Silicon Labs	2,257	-	RFQ	Datasheet	32-TQFP	Busy Bee	Tray	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	64KB (64K x 8)	FLASH	-	4.25K x 8	2.2V ~ 3.6V	A/D 20x10/12b SAR; D/A 4x12b	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount
C8051F332-GM IC MCU 8BIT 4KB FLASH 20QFN Silicon Labs	1,402	-	RFQ	Datasheet	20-VFQFN Exposed Pad	C8051F33x	Tube	Not For New Designs	Not Verified	8051	8-Bit	25MHz	SMBus (2-Wire/I2C), SPI, UART/USART	POR, PWM, Temp Sensor, WDT	17	4KB (4K x 8)	FLASH	-	768 x 8	2.7V ~ 3.6V	A/D 16x10b	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount
EFM8SB20F32G-B-QFP32 IC MCU 8BIT 32KB FLASH 32QFP Silicon Labs	2,471	-	RFQ	Datasheet	32-LQFP	Sleepy Bee	Tray	Active	Not Verified	CIP-51 8051	8-Bit	25MHz	EBI/EMI, I2C, SMBus, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	24	32KB (32K x 8)	FLASH	-	4.25K x 8	1.8V ~ 3.6V	A/D 23x10b	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount
C8051F555-IM IC MCU 8BIT 16KB FLASH 24QFN Silicon Labs	1,906	-	RFQ	Datasheet	24-WFQFN Exposed Pad	C8051F55x	Tube	Active	Not Verified	8051	8-Bit	50MHz	SMBus (2-Wire/I2C), CANbus, SPI, UART/USART	POR, PWM, Temp Sensor, WDT	18	16KB (16K x 8)	FLASH	-	2.25K x 8	1.8V ~ 5.25V	A/D 18x12b	Internal	-40°C ~ 125°C (TA)	-	-	Surface Mount
C8051F396-A-GMR IC MCU 8BIT 8KB FLASH 20QFN Silicon Labs	4,721	-	RFQ	Datasheet	20-VFQFN Exposed Pad	C8051F39x	Tape & Reel (TR)	Active	Not Verified	8051	8-Bit	50MHz	SMBus (2-Wire/I2C), SPI, UART/USART	POR, PWM, Temp Sensor, WDT	17	8KB (8K x 8)	FLASH	-	1K x 8	1.8V ~ 3.6V	A/D 16x10b; D/A 2x10b	Internal	-40°C ~ 105°C (TA)	-	-	Surface Mount
C8051F521A-IM IC MCU 8BIT 8KB FLASH 10DFN Silicon Labs	1,500	-	RFQ	Datasheet	10-VFDFN Exposed Pad	C8051F52x	Tube	Active	Not Verified	8051	8-Bit	25MHz	SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT	6	8KB (8K x 8)	FLASH	-	256 x 8	1.8V ~ 5.25V	A/D 6x12b	Internal	-40°C ~ 125°C (TA)	-	-	Surface Mount
C8051F392-A-GMR IC MCU 8BIT 16KB FLASH 20QFN Silicon Labs	2,307	-	RFQ	Datasheet	20-VFQFN Exposed Pad	C8051F39x	Tape & Reel (TR)	Active	Not Verified	8051	8-Bit	50MHz	SMBus (2-Wire/I2C), SPI, UART/USART	POR, PWM, Temp Sensor, WDT	17	16KB (16K x 8)	FLASH	-	1K x 8	1.8V ~ 3.6V	A/D 16x10b; D/A 2x10b	Internal	-40°C ~ 105°C (TA)	-	-	Surface Mount
EFM32JG1B200F128GM32-C0 IC MCU 32BIT 128KB FLASH 32QFN Silicon Labs	4,781	-	RFQ	Datasheet	32-VFQFN Exposed Pad	Jade Gecko	Tray	Active	Not Verified	ARM® Cortex®-M3	32-Bit Single-Core	40MHz	I2C, IrDA, LINbus, SmartCard, SPI, UART/USART	Brown-out Detect/Reset, DMA, I2S, POR, PWM, WDT	20	128KB (128K x 8)	FLASH	-	32K x 8	1.85V ~ 3.8V	A/D 20x12b	Internal	-40°C ~ 85°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.