Microcontrollers

Manufacturers 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 Supplier Device Package Supplier Device Package

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Photo 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 Supplier Device Package Supplier Device Package
W78E054C40PL

W78E054C40PL

IC MCU 8BIT 16KB FLASH 44PLCC

Nuvoton Technology Corporation

0
RFQ
W78E054C40PLDatasheet 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

W78E058B40DL

IC MCU 8BIT 32KB FLASH 40DIP

Nuvoton Technology Corporation

0
RFQ
W78E058B40DLDatasheet 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

W78E058B40FL

IC MCU 8BIT 32KB FLASH 44QFP

Nuvoton Technology Corporation

0
RFQ
W78E058B40FLDatasheet 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

W78E058B40PL

IC MCU 8BIT 32KB FLASH 44PLCC

Nuvoton Technology Corporation

0
RFQ
W78E058B40PLDatasheet 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

W78E378A10PL

IC MCU 8BIT 32KB FLASH 44PLCC

Nuvoton Technology Corporation

0
RFQ
W78E378A10PLDatasheet 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

W78E516B40DL

IC MCU 8BIT 64KB FLASH 40DIP

Nuvoton Technology Corporation

0
RFQ
W78E516B40DLDatasheet 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

W78E516B40FL

IC MCU 8BIT 64KB FLASH 44QFP

Nuvoton Technology Corporation

0
RFQ
W78E516B40FLDatasheet 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

W78E516B40PL

IC MCU 8BIT 64KB FLASH 44PLCC

Nuvoton Technology Corporation

0
RFQ
W78E516B40PLDatasheet 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

W78E858A40DL

IC MCU 8BIT 32KB FLASH 40DIP

Nuvoton Technology Corporation

0
RFQ
W78E858A40DLDatasheet 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

W78E858A40FL

IC MCU 8BIT 32KB FLASH 44QFP

Nuvoton Technology Corporation

0
RFQ
W78E858A40FLDatasheet 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

W78ERD2A40DL

IC MCU 8BIT 64KB FLASH 40DIP

Nuvoton Technology Corporation

0
RFQ
W78ERD2A40DLDatasheet 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

W78ERD2A40FL

IC MCU 8BIT 64KB FLASH 44QFP

Nuvoton Technology Corporation

0
RFQ
W78ERD2A40FLDatasheet 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

W78IRD2A25DL

IC MCU 8BIT 64KB FLASH 40DIP

Nuvoton Technology Corporation

0
RFQ
W78IRD2A25DLDatasheet 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

W78IRD2A25PL

IC MCU 8BIT 64KB FLASH 44PLCC

Nuvoton Technology Corporation

0
RFQ
W78IRD2A25PLDatasheet 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

W78L032A24DL

IC MCU 8BIT ROMLESS 40DIP

Nuvoton Technology Corporation

0
RFQ
W78L032A24DLDatasheet 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

W78L032A24FL

IC MCU 8BIT ROMLESS 44QFP

Nuvoton Technology Corporation

0
RFQ
W78L032A24FLDatasheet 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

W78L054A24DL

IC MCU 8BIT 16KB FLASH 40DIP

Nuvoton Technology Corporation

0
RFQ
W78L054A24DLDatasheet 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

W78L054C24PL

IC MCU 8BIT 16KB FLASH 44PLCC

Nuvoton Technology Corporation

0
RFQ
W78L054C24PLDatasheet 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

W78L516A24DL

IC MCU 8BIT 64KB FLASH 40DIP

Nuvoton Technology Corporation

0
RFQ
W78L516A24DLDatasheet 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

W78L516A24FL

IC MCU 8BIT 64KB FLASH 44QFP

Nuvoton Technology Corporation

0
RFQ
W78L516A24FLDatasheet 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

Category Overview

Microcontrollers Products & Selection Guide

Microcontrollers are widely used in industrial automation, automotive electronics, communication equipment, consumer electronics, new energy systems, and many other electronic applications. We offer products from multiple manufacturers, packages, and specifications to help engineers and buyers compare and source suitable components.

Use the manufacturer, key specification, availability, and Datasheet filters to narrow down the right Microcontrollers. If the exact part is not listed, submit an inquiry and our team can help check stock, lead time, and suitable alternatives.

FAQ

How do I choose the right Microcontrollers?

Start with the required electrical specifications, package, operating temperature, application conditions, and manufacturer preference, then compare availability and lead time.

Can I order based on the stock shown on this page?

Inventory can change with supply conditions. For project or volume requirements, please submit an inquiry so current stock, pricing, and lead time can be confirmed.

What if the exact part number I need is not listed?

Send us the part number and required quantity. We can help source hard-to-find parts and suggest suitable alternatives based on key specifications.

Do you provide Datasheets and technical documents?

Yes. Use the Datasheet links in the product list to view available technical documents. If a document is unavailable, contact us and we can help check it.

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