Microcontrollers

Browse available Microcontrollers part numbers with manufacturer references, stock information, pricing, datasheets and key specifications. Use the table below to compare options for your project.

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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
ATTINY28L-4AI IC MCU 8BIT 2KB FLASH 32TQFP Microchip Technology	1,817	-	RFQ	Datasheet	32-TQFP	AVR® ATtiny	Tray	Obsolete	Not Verified	AVR	8-Bit	4MHz	-	POR, WDT	11	2KB (1K x 16)	FLASH	-	-	2.7V ~ 5.5V	-	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount
ATTINY28V-1AC IC MCU 8BIT 2KB FLASH 32TQFP Microchip Technology	2,872	-	RFQ	Datasheet	32-TQFP	AVR® ATtiny	Tray	Obsolete	Not Verified	AVR	8-Bit	1.2MHz	-	POR, WDT	11	2KB (1K x 16)	FLASH	-	-	1.8V ~ 5.5V	-	Internal	0°C ~ 70°C (TA)	-	-	Surface Mount
ATTINY28V-1AI IC MCU 8BIT 2KB FLASH 32TQFP Microchip Technology	3,909	-	RFQ	Datasheet	32-TQFP	AVR® ATtiny	Tray	Obsolete	Not Verified	AVR	8-Bit	1.2MHz	-	POR, WDT	11	2KB (1K x 16)	FLASH	-	-	1.8V ~ 5.5V	-	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount
ATTINY28V-1PI IC MCU 8BIT 2KB FLASH 28DIP Microchip Technology	1,931	-	RFQ	Datasheet	28-DIP (0.300", 7.62mm)	AVR® ATtiny	Tube	Obsolete	Not Verified	AVR	8-Bit	1.2MHz	-	POR, WDT	11	2KB (1K x 16)	FLASH	-	-	1.8V ~ 5.5V	-	Internal	-40°C ~ 85°C (TA)	-	-	Through Hole
ATMEGA163-8AC IC MCU 8BIT 16KB FLASH 44TQFP Microchip Technology	4,930	-	RFQ	Datasheet	44-TQFP	AVR® ATmega	Tray	Obsolete	Not Verified	AVR	8-Bit	8MHz	I2C, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	32	16KB (8K x 16)	FLASH	512 x 8	1K x 8	4V ~ 5.5V	A/D 8x10b	Internal	0°C ~ 70°C	-	-	Surface Mount
ATMEGA163-8AI IC MCU 8BIT 16KB FLASH 44TQFP Microchip Technology	1,855	-	RFQ	Datasheet	44-TQFP	AVR® ATmega	Tray	Obsolete	Not Verified	AVR	8-Bit	8MHz	I2C, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	32	16KB (8K x 16)	FLASH	512 x 8	1K x 8	4V ~ 5.5V	A/D 8x10b	Internal	-40°C ~ 85°C	-	-	Surface Mount
ATMEGA163-8PC IC MCU 8BIT 16KB FLASH 40DIP Microchip Technology	1,486	-	RFQ	Datasheet	40-DIP (0.600", 15.24mm)	AVR® ATmega	Tube	Obsolete	Not Verified	AVR	8-Bit	8MHz	I2C, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	32	16KB (8K x 16)	FLASH	512 x 8	1K x 8	4V ~ 5.5V	A/D 8x10b	Internal	0°C ~ 70°C	-	-	Through Hole
ATMEGA163-8PI IC MCU 8BIT 16KB FLASH 40DIP Microchip Technology	4,867	-	RFQ	Datasheet	40-DIP (0.600", 15.24mm)	AVR® ATmega	Tube	Obsolete	Not Verified	AVR	8-Bit	8MHz	I2C, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	32	16KB (8K x 16)	FLASH	512 x 8	1K x 8	4V ~ 5.5V	A/D 8x10b	Internal	-40°C ~ 85°C	-	-	Through Hole
ATMEGA163L-4AC IC MCU 8BIT 16KB FLASH 44TQFP Microchip Technology	2,876	-	RFQ	Datasheet	44-TQFP	AVR® ATmega	Tray	Obsolete	Not Verified	AVR	8-Bit	4MHz	I2C, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	32	16KB (8K x 16)	FLASH	512 x 8	1K x 8	2.7V ~ 5.5V	A/D 8x10b	Internal	0°C ~ 70°C	-	-	Surface Mount
ATMEGA163L-4AI IC MCU 8BIT 16KB FLASH 44TQFP Microchip Technology	2,779	-	RFQ	Datasheet	44-TQFP	AVR® ATmega	Tray	Obsolete	Not Verified	AVR	8-Bit	4MHz	I2C, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	32	16KB (8K x 16)	FLASH	512 x 8	1K x 8	2.7V ~ 5.5V	A/D 8x10b	Internal	-40°C ~ 85°C	-	-	Surface Mount
ATMEGA163L-4PC IC MCU 8BIT 16KB FLASH 40DIP Microchip Technology	4,268	-	RFQ	Datasheet	40-DIP (0.600", 15.24mm)	AVR® ATmega	Tube	Obsolete	Not Verified	AVR	8-Bit	4MHz	I2C, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	32	16KB (8K x 16)	FLASH	512 x 8	1K x 8	2.7V ~ 5.5V	A/D 8x10b	Internal	0°C ~ 70°C	-	-	Through Hole
ATMEGA163L-4PI IC MCU 8BIT 16KB FLASH 40DIP Microchip Technology	4,003	-	RFQ	Datasheet	40-DIP (0.600", 15.24mm)	AVR® ATmega	Tube	Obsolete	Not Verified	AVR	8-Bit	4MHz	I2C, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	32	16KB (8K x 16)	FLASH	512 x 8	1K x 8	2.7V ~ 5.5V	A/D 8x10b	Internal	-40°C ~ 85°C	-	-	Through Hole
AT89C51-24AC IC MCU 8BIT 4KB FLASH 44TQFP Microchip Technology	2,210	-	RFQ	Datasheet	44-TQFP	89C	Tray	Obsolete	Not Verified	8051	8-Bit	24MHz	UART/USART	-	32	4KB (4K x 8)	FLASH	-	128 x 8	4V ~ 6V	-	Internal	0°C ~ 70°C	-	-	Surface Mount
AT89C51-24AI IC MCU 8BIT 4KB FLASH 44TQFP Microchip Technology	2,043	-	RFQ	Datasheet	44-TQFP	89C	Tray	Obsolete	Not Verified	8051	8-Bit	24MHz	UART/USART	-	32	4KB (4K x 8)	FLASH	-	128 x 8	4V ~ 6V	-	Internal	-40°C ~ 85°C	-	-	Surface Mount
AT89C51-24JC IC MCU 8BIT 4KB FLASH 44PLCC Microchip Technology	2,586	-	RFQ	Datasheet	44-LCC (J-Lead)	89C	Tube	Obsolete	Not Verified	80C51	8-Bit	24MHz	UART/USART	-	32	4KB (4K x 8)	FLASH	-	128 x 8	4V ~ 6V	-	Internal	0°C ~ 70°C (TA)	-	-	Surface Mount
AT89C51-24JI IC MCU 8BIT 4KB FLASH 44PLCC Microchip Technology	1,799	-	RFQ	Datasheet	44-LCC (J-Lead)	89C	Tube	Obsolete	Not Verified	8051	8-Bit	24MHz	UART/USART	-	32	4KB (4K x 8)	FLASH	-	128 x 8	4V ~ 6V	-	Internal	-40°C ~ 85°C	-	-	Surface Mount
AT89C51-24PC IC MCU 8BIT 4KB FLASH 40DIP Microchip Technology	4,241	-	RFQ	Datasheet	40-DIP (0.600", 15.24mm)	89C	Tube	Obsolete	Not Verified	80C51	8-Bit	24MHz	UART/USART	-	32	4KB (4K x 8)	FLASH	-	128 x 8	4V ~ 6V	-	Internal	0°C ~ 70°C (TA)	-	-	Through Hole
AT89C51-24PI IC MCU 8BIT 4KB FLASH 40DIP Microchip Technology	2,807	-	RFQ	Datasheet	40-DIP (0.600", 15.24mm)	89C	Tube	Obsolete	Not Verified	80C51	8-Bit	24MHz	UART/USART	-	32	4KB (4K x 8)	FLASH	-	128 x 8	4V ~ 6V	-	Internal	-40°C ~ 85°C (TA)	-	-	Through Hole
AT89C52-24AC IC MCU 8BIT 8KB FLASH 44TQFP Microchip Technology	4,314	-	RFQ	Datasheet	44-TQFP	89C	Tray	Obsolete	Not Verified	8051	8-Bit	24MHz	SIO, UART/USART	-	32	8KB (8K x 8)	FLASH	-	256 x 8	4V ~ 6V	-	Internal	0°C ~ 70°C (TA)	-	-	Surface Mount
AT89C52-24AI IC MCU 8BIT 8KB FLASH 44TQFP Microchip Technology	4,147	-	RFQ	Datasheet	44-TQFP	89C	Tray	Obsolete	Not Verified	8051	8-Bit	24MHz	SIO, UART/USART	-	32	8KB (8K x 8)	FLASH	-	256 x 8	4V ~ 6V	-	Internal	-40°C ~ 85°C	-	-	Surface Mount

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FREQUENTLY ASKED QUESTIONS

Microcontrollers FAQ

Common questions about selecting, comparing and sourcing Microcontrollers components through Winsun (HK) Electronics.

What should I check when selecting Microcontrollers components?

Compare the manufacturer part number, electrical specifications, package, operating conditions and application requirements. The product datasheet should be used to confirm technical suitability.

Can Winsun help source specific Microcontrollers part numbers?

Yes. Send the exact part number, manufacturer and required quantity. Winsun (HK) Electronics can assist with availability checks, quotation support and sourcing options based on your requirement.

Do you support shortage, obsolete or hard-to-find Microcontrollers parts?

Yes. Our sourcing team can review shortage and obsolete-part requirements and help check available supply channels or possible alternatives when appropriate.

How do I request a quote for Microcontrollers components?

Submit an RFQ with the part number, manufacturer, quantity and target delivery requirement. Our sales team will review your request and follow up with current sourcing information.