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
MG51XB9AE TR 16KB FLASH ROM, 1KB SRAM, 4KB LD Nuvoton Technology Corporation	4,342	-	RFQ	Datasheet	20-WFQFN Exposed Pad	NuMicro™ MG51	Tape & Reel (TR)	Active	-	8051	8-Bit	24MHz	I2C, SPI, UART/USART	Brown-out Detect/Reset, LVR, POR, PWM, WDT	18	16KB (16K x 8)	FLASH	-	1K x 8	2.4V ~ 5.5V	A/D 8x12b SAR	Internal	-40°C ~ 105°C (TA)	-	-	Surface Mount
MG51FB9AE TR 16KB FLASH ROM, 1KB SRAM, 4KB LD Nuvoton Technology Corporation	1,421	-	RFQ	Datasheet	20-TSSOP (0.173", 4.40mm Width)	NuMicro™ MG51	Tape & Reel (TR)	Active	-	8051	8-Bit	24MHz	I2C, SPI, UART/USART	Brown-out Detect/Reset, LVR, POR, PWM, WDT	18	16KB (16K x 8)	FLASH	-	1K x 8	2.4V ~ 5.5V	A/D 8x12b SAR	Internal	-40°C ~ 105°C (TA)	-	-	Surface Mount
N76E003AQ20 IC MCU 8BIT 18KB FLASH 20QFN Nuvoton Technology Corporation	1,041	-	RFQ	Datasheet	20-WFQFN Exposed Pad	N76	Tape & Reel (TR)	Active	Not Verified	8051	8-Bit	16MHz	I2C, SPI, UART/USART	Brown-out Detect/Reset, I2S, POR, PWM, WDT	18	18KB (18K x 8)	FLASH	4K x 8	1K x 8	2.4V ~ 5.5V	A/D 8x12b	Internal	-40°C ~ 105°C (TA)	-	-	Surface Mount
MS51XB9BE IC MCU 8BIT 16KB FLASH 20WFQFN Nuvoton Technology Corporation	3,090	-	RFQ	Datasheet	20-WFQFN Exposed Pad	NuMicro MS51	Tray	Active	-	8051	8-Bit	24MHz	I2C, SPI, UART/USART	Brown-out Detect/Reset, LVR, POR, PWM, WDT	18	16KB (16K x 8)	FLASH	-	1K x 8	2.4V ~ 5.5V	A/D 8x12b SAR	Internal	-40°C ~ 105°C (TA)	-	-	Surface Mount
MG51XB9AE 16KB FLASH ROM, 1KB SRAM, 4KB LD Nuvoton Technology Corporation	1,067	-	RFQ	Datasheet	20-WFQFN Exposed Pad	NuMicro™ MG51	Tray	Active	-	8051	8-Bit	24MHz	I2C, SPI, UART/USART	Brown-out Detect/Reset, LVR, POR, PWM, WDT	18	16KB (16K x 8)	FLASH	-	1K x 8	2.4V ~ 5.5V	A/D 8x12b SAR	Internal	-40°C ~ 105°C (TA)	-	-	Surface Mount
MG51XC9AE TR 32KB FLASH ROM, 1KB SRAM, 4KB LD Nuvoton Technology Corporation	4,166	-	RFQ	Datasheet	20-WFQFN Exposed Pad	NuMicro™ MG51	Tape & Reel (TR)	Active	-	8051	8-Bit	24MHz	I2C, SPI, UART/USART	Brown-out Detect/Reset, LVR, POR, PWM, WDT	18	32KB (32K x 8)	FLASH	-	1K x 8	2.4V ~ 5.5V	A/D 8x12b SAR	Internal	-40°C ~ 105°C (TA)	-	-	Surface Mount
MS51FB9AE TR 16K BYTES SHARED WITH LDROM Nuvoton Technology Corporation	1,783	-	RFQ	Datasheet	20-TSSOP (0.173", 4.40mm Width)	NuMicro MS51	Tape & Reel (TR)	Active	-	8051	8-Bit	24MHz	I2C, SPI, UART/USART	Brown-out Detect/Reset, LVR, POR, PWM, WDT	18	16KB (16K x 8)	FLASH	-	1K x 8	2.4V ~ 5.5V	A/D 8x12b SAR	Internal	-40°C ~ 105°C (TA)	-	-	Surface Mount
MG51FC9AE TR 32KB FLASH ROM, 1KB SRAM, 4KB LD Nuvoton Technology Corporation	3,419	-	RFQ	Datasheet	20-TSSOP (0.173", 4.40mm Width)	NuMicro™ MG51	Tape & Reel (TR)	Active	-	8051	8-Bit	24MHz	I2C, SPI, UART/USART	Brown-out Detect/Reset, LVR, POR, PWM, WDT	18	32KB (32K x 8)	FLASH	-	1K x 8	2.4V ~ 5.5V	A/D 8x12b SAR	Internal	-40°C ~ 105°C (TA)	-	-	Surface Mount
MG51XC9AE 32KB FLASH ROM, 1KB SRAM, 4KB LD Nuvoton Technology Corporation	1,532	-	RFQ	Datasheet	20-WFQFN Exposed Pad	NuMicro™ MG51	Tray	Active	-	8051	8-Bit	24MHz	I2C, SPI, UART/USART	Brown-out Detect/Reset, LVR, POR, PWM, WDT	18	32KB (32K x 8)	FLASH	-	1K x 8	2.4V ~ 5.5V	A/D 8x12b SAR	Internal	-40°C ~ 105°C (TA)	-	-	Surface Mount
N76E003BQ20 LOW PIN COUNT 8051 SERIES; 2.4V Nuvoton Technology Corporation	3,540	-	RFQ	Datasheet	20-WFQFN Exposed Pad	N76	Tape & Reel (TR)	Active	-	8051	8-Bit	16MHz	I2C, SPI, UART/USART	Brown-out Detect/Reset, I2S, POR, PWM, WDT	17	18KB (18K x 8)	FLASH	4K x 8	1K x 8	2.4V ~ 5.5V	A/D 8x12b	Internal	-40°C ~ 105°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.