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
N78E366ALG IC MCU 8BIT 64KB FLASH 48LQFP Nuvoton Technology Corporation	3,587	-	RFQ	Datasheet	48-LQFP	N78	Tray	Obsolete	Not Verified	8051	8-Bit	40MHz	EBI/EMI, SPI, UART/USART	Brown-out Detect/Reset, LVD, POR, PWM, WDT	40	64KB (64K x 8)	FLASH	-	1.25K x 8	2.4V ~ 5.5V	-	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount
N78E366APG IC MCU 8BIT 64KB FLASH 44PLCC Nuvoton Technology Corporation	2,727	-	RFQ	Datasheet	44-LCC (J-Lead)	N78	Tube	Obsolete	Not Verified	8051	8-Bit	40MHz	EBI/EMI, SPI, UART/USART	Brown-out Detect/Reset, LVD, POR, PWM, WDT	36	64KB (64K x 8)	FLASH	-	1.25K x 8	2.4V ~ 5.5V	-	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount
N78E517ADG IC MCU 8BIT 64KB FLASH 40DIP Nuvoton Technology Corporation	1,875	-	RFQ	Datasheet	40-DIP (0.600", 15.24mm)	N78	Tube	Obsolete	Not Verified	8051	8-Bit	40MHz	EBI/EMI, SPI, UART/USART	Brown-out Detect/Reset, LVD, POR, PWM, WDT	32	64KB (64K x 8)	FLASH	-	1.25K x 8	2.4V ~ 5.5V	-	Internal	-40°C ~ 85°C (TA)	-	-	Through Hole
N78E517AFG IC MCU 8BIT 64KB FLASH 44QFP Nuvoton Technology Corporation	4,193	-	RFQ	Datasheet	44-BQFP	N78	Tray	Obsolete	Not Verified	8051	8-Bit	40MHz	EBI/EMI, SPI, UART/USART	Brown-out Detect/Reset, LVD, POR, PWM, WDT	36	64KB (64K x 8)	FLASH	-	1.25K x 8	2.4V ~ 5.5V	-	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount
N78E517ALG IC MCU 8BIT 64KB FLASH 48LQFP Nuvoton Technology Corporation	2,341	-	RFQ	Datasheet	48-LQFP	N78	Tube	Active	Not Verified	8051	8-Bit	40MHz	EBI/EMI, SPI, UART/USART	Brown-out Detect/Reset, LVD, POR, PWM, WDT	40	64KB (64K x 8)	FLASH	-	1.25K x 8	2.4V ~ 5.5V	-	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount
N78E517APG IC MCU 8BIT 64KB FLASH 44PLCC Nuvoton Technology Corporation	2,127	-	RFQ	Datasheet	44-LCC (J-Lead)	N78	Tube	Obsolete	Not Verified	8051	8-Bit	40MHz	EBI/EMI, SPI, UART/USART	Brown-out Detect/Reset, LVD, POR, PWM, WDT	36	64KB (64K x 8)	FLASH	-	1.25K x 8	2.4V ~ 5.5V	-	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount
N79E342AKG IC MCU 8BIT 2KB FLASH 16DIP Nuvoton Technology Corporation	2,612	-	RFQ	Datasheet	16-DIP (0.300", 7.62mm)	N79	Tube	Obsolete	Not Verified	8051	8-Bit	12MHz	-	Brown-out Detect/Reset, LED, LVD, POR, PWM, WDT	14	2KB (2K x 8)	FLASH	128 x 8	128 x 8	2.4V ~ 5.5V	A/D 4x10b	Internal	-40°C ~ 85°C (TA)	-	-	Through Hole
W79E2051RARG IC MCU 8BIT 2KB FLASH 20SSOP Nuvoton Technology Corporation	1,682	-	RFQ	Datasheet	20-SSOP (0.209", 5.30mm Width)	W79	Tube	Active	Not Verified	8051	8-Bit	24MHz	UART/USART	Brown-out Detect/Reset, LED, LVD, POR, PWM, WDT	17	2KB (2K x 8)	FLASH	128 x 8	256 x 8	2.4V ~ 5.5V	-	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount
N78E059APG IC MCU 8BIT 32KB FLASH 44PLCC Nuvoton Technology Corporation	3,571	-	RFQ	Datasheet	44-LCC (J-Lead)	N78	Tube	Obsolete	Not Verified	8051	8-Bit	40MHz	EBI/EMI, SPI, UART/USART	Brown-out Detect/Reset, LVD, POR, PWM, WDT	36	32KB (32K x 8)	FLASH	-	1.25K x 8	2.4V ~ 5.5V	-	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount
W79E633A40PL IC MCU 8BIT 128KB FLASH 44PLCC Nuvoton Technology Corporation	3,811	-	RFQ	Datasheet	44-LCC (J-Lead)	W79	Tube	Active	Not Verified	8051	8-Bit	40MHz	EBI/EMI, I2C, UART/USART	POR, PWM, WDT	36	128KB (128K x 8)	FLASH	-	1.25K x 8	4.5V ~ 5.5V	A/D 4x10b	Internal	0°C ~ 70°C (TA)	-	-	Surface Mount
W79E4051RASG IC MCU 8BIT 4KB FLASH 20SOIC Nuvoton Technology Corporation	3,342	-	RFQ	Datasheet	20-SOIC (0.295", 7.50mm Width)	W79	Tube	Active	Not Verified	8051	8-Bit	24MHz	UART/USART	Brown-out Detect/Reset, LED, LVD, POR, PWM, WDT	17	4KB (4K x 8)	FLASH	128 x 8	256 x 8	2.4V ~ 5.5V	-	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount
N78E059AFG IC MCU 8BIT 32KB FLASH 44QFP Nuvoton Technology Corporation	4,279	-	RFQ	Datasheet	44-BQFP	N78	Tray	Active	Not Verified	8051	8-Bit	40MHz	EBI/EMI, SPI, UART/USART	Brown-out Detect/Reset, LVD, POR, PWM, WDT	36	32KB (32K x 8)	FLASH	-	1.25K x 8	2.4V ~ 5.5V	-	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount
ATSAM4LC2BA-UUR IC MCU 32BIT 128KB FLASH 64WLCSP Microchip Technology	2,370	-	RFQ	Datasheet	64-XFBGA, WLCSP	SAM4L	Tape & Reel (TR)	Active	Not Verified	ARM® Cortex®-M4	32-Bit Single-Core	48MHz	I2C, IrDA, LINbus, SPI, UART/USART, USB	Brown-out Detect/Reset, DMA, I2S, LCD, POR, PWM, WDT	43	128KB (128K x 8)	FLASH	-	32K x 8	1.68V ~ 3.6V	A/D 7x12b; D/A 1x10b	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount
ATSAM4LS4BA-UUR IC MCU 32BIT 256KB FLASH 64WLCSP Microchip Technology	2,013	-	RFQ	Datasheet	64-XFBGA, WLCSP	SAM4L	Tape & Reel (TR)	Active	Not Verified	ARM® Cortex®-M4	32-Bit Single-Core	48MHz	I2C, IrDA, LINbus, SPI, UART/USART, USB	Brown-out Detect/Reset, DMA, I2S, POR, PWM, WDT	48	256KB (256K x 8)	FLASH	-	32K x 8	1.68V ~ 3.6V	A/D 7x12b; D/A 1x10b	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount
ATSAM4S16BA-UUR IC MCU 32BIT 1MB FLASH 64WLCSP Microchip Technology	1,956	-	RFQ	Datasheet	64-UFBGA, WLCSP	SAM4S	Tape & Reel (TR)	Active	Not Verified	ARM® Cortex®-M4	32-Bit Single-Core	120MHz	I2C, IrDA, Memory Card, SPI, SSC, UART/USART, USB	Brown-out Detect/Reset, DMA, POR, PWM, WDT	47	1MB (1M x 8)	FLASH	-	128K x 8	1.62V ~ 3.6V	A/D 11x12b; D/A 2x12b	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount
MSP430F5258IZQER IC MCU 16BIT 128KB FLASH 80BGA Texas Instruments	2,743	-	RFQ	Datasheet	80-VFBGA	MSP430F5xx	Tape & Reel (TR)	Obsolete	Not Verified	MSP430 CPUXV2	16-Bit	25MHz	I2C, IrDA, SCI, SPI, UART/USART	Brown-out Detect/Reset, DMA, POR, PWM, WDT	53	128KB (128K x 8)	FLASH	-	32K x 8	1.8V ~ 3.6V	-	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount
MSP430F5259IZQER IC MCU 16BIT 128KB FLASH 80BGA Texas Instruments	2,845	-	RFQ	Datasheet	80-VFBGA	MSP430F5xx	Tape & Reel (TR)	Obsolete	Not Verified	MSP430 CPUXV2	16-Bit	25MHz	I2C, IrDA, SCI, SPI, UART/USART	Brown-out Detect/Reset, DMA, POR, PWM, WDT	53	128KB (128K x 8)	FLASH	-	32K x 8	1.8V ~ 3.6V	A/D 12x10b	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount
ATSAM4S8BA-UUR IC MCU 32BIT 512KB FLASH 64WLCSP Microchip Technology	4,998	-	RFQ	Datasheet	64-UFBGA, WLCSP	SAM4S	Tape & Reel (TR)	Active	Not Verified	ARM® Cortex®-M4	32-Bit Single-Core	120MHz	I2C, IrDA, Memory Card, SPI, SSC, UART/USART, USB	Brown-out Detect/Reset, DMA, POR, PWM, WDT	47	512KB (512K x 8)	FLASH	-	128K x 8	1.62V ~ 3.6V	A/D 11x12b; D/A 2x12b	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount
MSP430F5256IZQER IC MCU 16BIT 128KB FLASH 80BGA Texas Instruments	3,457	-	RFQ	Datasheet	80-VFBGA	MSP430F5xx	Tape & Reel (TR)	Obsolete	Not Verified	MSP430 CPUXV2	16-Bit	25MHz	I2C, IrDA, SCI, SPI, UART/USART	Brown-out Detect/Reset, DMA, POR, PWM, WDT	53	128KB (128K x 8)	FLASH	-	16K x 8	1.8V ~ 3.6V	-	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount
PIC16F1703T-I/SL IC MCU 8BIT 3.5KB FLASH 14SOIC Microchip Technology	1,288	-	RFQ	Datasheet	14-SOIC (0.154", 3.90mm Width)	PIC® XLP™ 16F	Tape & Reel (TR)	Active	Not Verified	PIC	8-Bit	32MHz	I2C, LINbus, SPI	Brown-out Detect/Reset, POR, PWM, WDT	12	3.5KB (2K x 14)	FLASH	-	256 x 8	2.3V ~ 5.5V	A/D 8x10b	Internal	-40°C ~ 85°C (TA)	-	-	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.

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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.