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
ATTINY5-TS8R IC MCU 8BIT 512B FLASH SOT23-6 Atmel	1,990	-	RFQ	Datasheet	SOT-23-6	AVR® ATtiny	Bulk	Active	Not Verified	AVR	8-Bit	10MHz	-	POR, PWM, WDT	4	512B (256 x 16)	FLASH	-	32 x 8	1.8V ~ 5.5V	A/D 4x8b	Internal	-40°C ~ 125°C (TA)	-	-	Surface Mount
ATTINY24A-MMHR IC MCU 8BIT 2KB FLASH 20VQFN Atmel	9,400	-	RFQ	Datasheet	20-VFQFN Exposed Pad	AVR® ATtiny	Bulk	Active	Not Verified	AVR	8-Bit	20MHz	USI	Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT	12	2KB (1K x 16)	FLASH	128 x 8	128 x 8	1.8V ~ 5.5V	A/D 8x10b	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount
ATTINY45-20MU IC MCU 8BIT 4KB FLASH 20QFN Atmel	1,046	-	RFQ	Datasheet	20-WFQFN Exposed Pad	AVR® ATtiny, Functional Safety (FuSa)	Bulk	Active	Not Verified	AVR	8-Bit	20MHz	USI	Brown-out Detect/Reset, POR, PWM, WDT	6	4KB (2K x 16)	FLASH	256 x 8	256 x 8	2.7V ~ 5.5V	A/D 4x10b	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount
ATTINY20-XU IC MCU 8BIT 2KB FLASH 14TSSOP Atmel	11,542	-	RFQ	Datasheet	14-TSSOP (0.173", 4.40mm Width)	AVR® ATtiny	Bulk	Active	Not Verified	AVR	8-Bit	12MHz	I2C, SPI	Brown-out Detect/Reset, POR, PWM, WDT	12	2KB (1K x 16)	FLASH	-	128 x 8	1.8V ~ 5.5V	A/D 8x10b	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount
ATTINY20-XUR IC MCU 8BIT 2KB FLASH 14TSSOP Atmel	7,960	-	RFQ	Datasheet	14-TSSOP (0.173", 4.40mm Width)	AVR® ATtiny	Bulk	Active	Not Verified	AVR	8-Bit	12MHz	I2C, SPI	Brown-out Detect/Reset, POR, PWM, WDT	12	2KB (1K x 16)	FLASH	-	128 x 8	1.8V ~ 5.5V	A/D 8x10b	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount
ATTINY40-SU IC MCU 8BIT 4KB FLASH 20SOIC Atmel	9,262	-	RFQ	Datasheet	20-SOIC (0.295", 7.50mm Width)	AVR® ATtiny	Bulk	Active	Not Verified	AVR	8-Bit	12MHz	I2C, SPI	Brown-out Detect/Reset, POR, PWM, WDT	18	4KB (2K x 16)	FLASH	-	256 x 8	1.8V ~ 5.5V	A/D 12x10b	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount
ATMEGA48A-MU IC MCU 8BIT 4KB FLASH 32VQFN Atmel	229	-	RFQ	Datasheet	32-VFQFN Exposed Pad	AVR® ATmega	Bulk	Active	Not Verified	AVR	8-Bit	20MHz	I2C, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	23	4KB (2K x 16)	FLASH	256 x 8	512 x 8	1.8V ~ 5.5V	A/D 8x10b	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount
ATTINY25-20SUR IC MCU 8BIT 2KB FLASH 8SOIC Atmel	2,000	-	RFQ	Datasheet	8-SOIC (0.209", 5.30mm Width)	AVR® ATtiny, Functional Safety (FuSa)	Bulk	Active	Not Verified	AVR	8-Bit	20MHz	USI	Brown-out Detect/Reset, POR, PWM, WDT	6	2KB (1K x 16)	FLASH	128 x 8	128 x 8	2.7V ~ 5.5V	A/D 4x10b	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount
AT89LP51-20MU IC MCU 8BIT 4KB FLASH 44VQFN Atmel	316	-	RFQ	Datasheet	44-VFQFN Exposed Pad	89LP	Bulk	Active	Not Verified	8051	8-Bit	20MHz	EBI/EMI, I2C, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	36	4KB (4K x 8)	FLASH	-	256 x 8	2.4V ~ 5.5V	-	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount
ATTINY20-CCU IC MCU 8BIT 2KB FLASH 15UFBGA Atmel	1,051	-	RFQ	Datasheet	15-UFBGA	AVR® ATtiny	Bulk	Active	Not Verified	AVR	8-Bit	12MHz	I2C, SPI	Brown-out Detect/Reset, POR, PWM, WDT	12	2KB (1K x 16)	FLASH	-	128 x 8	1.8V ~ 5.5V	A/D 8x10b	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount

WINSUN SOURCING SUPPORT

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Send the target part number, manufacturer, specifications and quantity. Winsun (HK) Electronics can assist with availability checks, quotation support, shortage sourcing and alternative-part options when appropriate.

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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.