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.

For BOM, shortage or hard-to-find requirements, send your part number and quantity to Winsun (HK) Electronics for availability, lead-time and quotation support.

Compare Part Numbers Review available models and manufacturers

Datasheets & Specifications Access technical references quickly

RFQ & BOM Support Send quantities for sourcing and quotation

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
W78E054C40PL IC MCU 8BIT 16KB FLASH 44PLCC Nuvoton Technology Corporation	1,711	-	RFQ	Datasheet	44-LCC (J-Lead)	W78	Tube	Obsolete	Not Verified	8051	8-Bit	40MHz	EBI/EMI, UART/USART	POR, WDT	36	16KB (16K x 8)	FLASH	-	256 x 8	4.5V ~ 5.5V	-	Internal	0°C ~ 70°C (TA)	-	-	Surface Mount
W78E058B40DL IC MCU 8BIT 32KB FLASH 40DIP Nuvoton Technology Corporation	4,831	-	RFQ	Datasheet	40-DIP	W78	Tube	Obsolete	Not Verified	8052	8-Bit	40MHz	EBI/EMI, UART/USART	POR, WDT	32	32KB (32K x 8)	FLASH	-	512 x 8	4.5V ~ 5.5V	-	Internal	0°C ~ 70°C (TA)	-	-	Through Hole
W78E058B40FL IC MCU 8BIT 32KB FLASH 44QFP Nuvoton Technology Corporation	2,023	-	RFQ	Datasheet	44-BQFP	W78	Tray	Obsolete	Not Verified	8052	8-Bit	40MHz	EBI/EMI, UART/USART	POR, WDT	36	32KB (32K x 8)	FLASH	-	512 x 8	4.5V ~ 5.5V	-	Internal	0°C ~ 70°C (TA)	-	-	Surface Mount
W78E058B40PL IC MCU 8BIT 32KB FLASH 44PLCC Nuvoton Technology Corporation	2,623	-	RFQ	Datasheet	44-LCC (J-Lead)	W78	Tube	Obsolete	Not Verified	8052	8-Bit	40MHz	EBI/EMI, UART/USART	POR, WDT	36	32KB (32K x 8)	FLASH	-	512 x 8	4.5V ~ 5.5V	-	Internal	0°C ~ 70°C (TA)	-	-	Surface Mount
W78E378A10PL IC MCU 8BIT 32KB FLASH 44PLCC Nuvoton Technology Corporation	2,046	-	RFQ	Datasheet	44-LCC (J-Lead)	W78	Tube	Obsolete	Not Verified	80C31	8-Bit	10MHz	EBI/EMI, Serial Port	LVD, POR, WDT	25	32KB (32K x 8)	FLASH	-	576 x 8	4.5V ~ 5.5V	A/D 7x8b; D/A 11x8b	Internal	0°C ~ 70°C (TA)	-	-	Surface Mount
W78E516B40DL IC MCU 8BIT 64KB FLASH 40DIP Nuvoton Technology Corporation	1,362	-	RFQ	Datasheet	40-DIP	W78	Tube	Obsolete	Not Verified	8052	8-Bit	40MHz	EBI/EMI, UART/USART	POR	32	64KB (64K x 8)	FLASH	-	512 x 8	4.5V ~ 5.5V	-	Internal	0°C ~ 70°C (TA)	-	-	Through Hole
W78E516B40FL IC MCU 8BIT 64KB FLASH 44QFP Nuvoton Technology Corporation	3,674	-	RFQ	Datasheet	44-BQFP	W78	Tray	Obsolete	Not Verified	8052	8-Bit	40MHz	EBI/EMI, UART/USART	POR	36	64KB (64K x 8)	FLASH	-	512 x 8	4.5V ~ 5.5V	-	Internal	0°C ~ 70°C (TA)	-	-	Surface Mount
W78E516B40PL IC MCU 8BIT 64KB FLASH 44PLCC Nuvoton Technology Corporation	1,281	-	RFQ	Datasheet	44-LCC (J-Lead)	W78	Tube	Obsolete	Not Verified	8052	8-Bit	40MHz	EBI/EMI, UART/USART	POR	36	64KB (64K x 8)	FLASH	-	512 x 8	4.5V ~ 5.5V	-	Internal	0°C ~ 70°C (TA)	-	-	Surface Mount
W78E858A40DL IC MCU 8BIT 32KB FLASH 40DIP Nuvoton Technology Corporation	2,385	-	RFQ	Datasheet	40-DIP	W78	Tube	Obsolete	Not Verified	8052	8-Bit	40MHz	EBI/EMI, Serial Port	POR, PWM, WDT	32	32KB (32K x 8)	FLASH	-	768 x 8	4.5V ~ 5.5V	-	Internal	0°C ~ 70°C (TA)	-	-	Through Hole
W78E858A40FL IC MCU 8BIT 32KB FLASH 44QFP Nuvoton Technology Corporation	3,081	-	RFQ	Datasheet	44-BQFP	W78	Tray	Last Time Buy	Not Verified	8052	8-Bit	40MHz	EBI/EMI, Serial Port	POR, PWM, WDT	36	32KB (32K x 8)	FLASH	-	768 x 8	4.5V ~ 5.5V	-	Internal	0°C ~ 70°C (TA)	-	-	Surface Mount
W78ERD2A40DL IC MCU 8BIT 64KB FLASH 40DIP Nuvoton Technology Corporation	3,252	-	RFQ	Datasheet	40-DIP	W78	Tube	Obsolete	Not Verified	8052	8-Bit	40MHz	EBI/EMI, Serial Port	POR, PWM, WDT	32	64KB (64K x 8)	FLASH	-	1.25K x 8	4.5V ~ 5.5V	-	Internal	0°C ~ 70°C (TA)	-	-	Through Hole
W78ERD2A40FL IC MCU 8BIT 64KB FLASH 44QFP Nuvoton Technology Corporation	2,016	-	RFQ	Datasheet	44-BQFP	W78	Tray	Last Time Buy	Not Verified	8052	8-Bit	40MHz	EBI/EMI, Serial Port	POR, PWM, WDT	36	64KB (64K x 8)	FLASH	-	1.25K x 8	4.5V ~ 5.5V	-	Internal	0°C ~ 70°C (TA)	-	-	Surface Mount
W78IRD2A25DL IC MCU 8BIT 64KB FLASH 40DIP Nuvoton Technology Corporation	3,324	-	RFQ	Datasheet	40-DIP	W78	Tube	Obsolete	Not Verified	80C52	8-Bit	25MHz	EBI/EMI, UART/USART	POR, PWM, WDT	32	64KB (64K x 8)	FLASH	-	1.25K x 8	4.5V ~ 5.5V	-	Internal	-40°C ~ 85°C (TA)	-	-	Through Hole
W78IRD2A25PL IC MCU 8BIT 64KB FLASH 44PLCC Nuvoton Technology Corporation	1,575	-	RFQ	Datasheet	44-LCC (J-Lead)	W78	Tube	Last Time Buy	Not Verified	80C52	8-Bit	25MHz	EBI/EMI, UART/USART	POR, PWM, WDT	36	64KB (64K x 8)	FLASH	-	1.25K x 8	4.5V ~ 5.5V	-	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount
W78L032A24DL IC MCU 8BIT ROMLESS 40DIP Nuvoton Technology Corporation	4,901	-	RFQ	Datasheet	40-DIP	W78	Tube	Active	Not Verified	80C32	8-Bit	24MHz	EBI/EMI, Serial Port	-	32	-	ROMless	-	256 x 8	1.8V ~ 5.5V	-	Internal	0°C ~ 70°C (TA)	-	-	Through Hole
W78L032A24FL IC MCU 8BIT ROMLESS 44QFP Nuvoton Technology Corporation	2,779	-	RFQ	Datasheet	44-BQFP	W78	Tray	Active	Not Verified	80C32	8-Bit	24MHz	EBI/EMI, Serial Port	-	32	-	ROMless	-	256 x 8	1.8V ~ 5.5V	-	Internal	0°C ~ 70°C (TA)	-	-	Surface Mount
W78L054A24DL IC MCU 8BIT 16KB FLASH 40DIP Nuvoton Technology Corporation	2,196	-	RFQ	Datasheet	40-DIP	W78	Tube	Obsolete	Not Verified	8051	8-Bit	24MHz	EBI/EMI, UART/USART	POR, WDT	32	16KB (16K x 8)	FLASH	-	256 x 8	2.4V ~ 5.5V	-	Internal	0°C ~ 70°C (TA)	-	-	Through Hole
W78L054C24PL IC MCU 8BIT 16KB FLASH 44PLCC Nuvoton Technology Corporation	1,642	-	RFQ	Datasheet	44-LCC (J-Lead)	W78	Tube	Obsolete	Not Verified	8051	8-Bit	24MHz	EBI/EMI, UART/USART	POR, WDT	36	16KB (16K x 8)	FLASH	-	256 x 8	2.4V ~ 5.5V	-	Internal	0°C ~ 70°C (TA)	-	-	Surface Mount
W78L516A24DL IC MCU 8BIT 64KB FLASH 40DIP Nuvoton Technology Corporation	4,624	-	RFQ	Datasheet	40-DIP	W78	Tube	Obsolete	Not Verified	80C52	8-Bit	24MHz	EBI/EMI, Serial Port	POR, WDT	32	64KB (64K x 8)	FLASH	-	1.25K x 8	2.7V ~ 5.5V	-	Internal	0°C ~ 70°C (TA)	-	-	Through Hole
W78L516A24FL IC MCU 8BIT 64KB FLASH 44QFP Nuvoton Technology Corporation	1,196	-	RFQ	Datasheet	44-BQFP	W78	Tray	Obsolete	Not Verified	80C52	8-Bit	24MHz	EBI/EMI, Serial Port	POR, WDT	36	64KB (64K x 8)	FLASH	-	1.25K x 8	2.7V ~ 5.5V	-	Internal	0°C ~ 70°C (TA)	-	-	Surface Mount

WINSUN SOURCING SUPPORT

Need Microcontrollers Sourcing Support?

Send the manufacturer, part number, quantity and target delivery requirement. Winsun (HK) Electronics can assist with availability checks, quotation support, shortage sourcing and hard-to-find or obsolete components.

Global component sourcing support BOM, shortage and EOL support

Send part number & quantity Request a Quote

Need sourcing assistance? Contact Sales

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.