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The Nuvoton Microcontroller portfolio contains hundreds of derivates for the best and precise choice for your application.


As a leading supplier of 8051 microcontrollers ( MCUs ) , Nuvoton offers a variety of products with the best performance critical to the success of consumers and industrial products. The 8-bit MCU supports pin-compatible with traditional 12 T 8051 , wide operating voltage ( 2.4V ~ 5.5V ) , industrial temperature ( -40 ℃ ~ 85 ℃ ) , 22.1184 internal oscillator ( 1 % accuracy at 25 ℃, 5V ) , Data Flash configurable, a rich set of I/O such as PWM, ADC, UART, SPI, I²C, comparator, ISP, ICP, and high noise immunity ( 8 kV ESD, 4 kV EFT ) , and provides small compact package such as TSSOP20 and QFN20 . It is one of the best choice of 8051 MCUs.


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Low Power Touch Key ML56 Series

Low Power LCD ML54 Series

Low Power ML51 Series

Low Pin Count 8051 Series

Industrial 8051 Series

Standard 8051 Series


ARM Cortex-M23 MCUs

NuMicro® M23 Family
the TrustZone® empowered Cortex®-M23 based secure microcontrollers focusing on IoT security.

Cortex®-M23 CPU Core Based with TrustZone for Armv8-M

The NuMicro® M23 Family is based on the Arm® Cortex®-M23 core and is empowered by the Arm® TrustZone® for Arm®v8-M architecture. The NuMicro® M2351 series is the first series in the Family to realize robust IoT security applications.

With TrustZone® implemented, memory and peripherals could be divided into secure and non-secure worlds to achieve data integrity, firmware update, and operation security. In addition, TrustZone® for Arm®v8-M provides the key benefit of context switching between secure and non-secure worlds by hardware for faster transitions and greater power efficiency.

Arm® Platform Security Architecture ( PSA ) Support

The Platform Security Architecture ( PSA ) is a holistic set of threat models, security analyses, hardware and firmware architecture specifications, and an open source firmware reference implementation. PSA is a contribution from Arm to the entire IoT ecosystem, offering common ground rules and a more economical approach to building more secure devices, which ideally works with the TrustZone technology for Armv8-M.

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To support Arm® PSA for better implementation of IoT security technology, Nuvoton has developed the Nuvoton Secure Microcontroller Platform ( NuSMP ) . The NuSMP is a mixture of hardware and software technology to help users meet up with the vast security requirements of general purpose and secure IoT microcontrollers. With the NuSMP, developers can easily achieve the secure services with M2351 Series microcontroller in coverage of: Trusted Boot ( Root of Trust ) , Secure OTA ( Over-The-Air ) firmware update ( including secure software download ) , Power management APIs for non-secure world and PC side crypto related development software tool. Nuvoton offers application note, sample code and training videos for each technology for developers’ access and reference.

M261/M262/M263 Series

M251/M252 Series

M2351 Series

ARM Cortex-M4 MCUs

Nuvoton Microcontroller

High-performance NuMicro® Family Arm Cortex®-M4 based Microcontroller (MCU) with FPU and DSP extension

The NuMicro Family Cortex-M4 based MCUs provide high performance system design up to 90-240 DMIPS operating at up to 72-192 MHz. When executing from the embedded Flash memory, the power consumption can be lowered to 130 μA/MHz with dynamic power scaling function supported by the M480 series. These is the upper end of the Nuvoton Microcontroller portfolio.

The NuMicro Family Cortex-M4 based MCUs are composed by the following product series.

  • M480 Series: 192 MHz CPU, up to 2.5 MB of Flash memory, up to 160 KB of SRAM memory, Quad-SPI interface with XIP (Execute in Place), and 16-bit I80 QVGA LCD
    • M481 – 192 MHz PWM, dual 200 Mbps SDHC, 5 MSPS 12-bit ADC, and 1 MSPS 12-bit ADC.
    • M482 – USB 2.0 Full Speed device/host/OTG with integrated FS transceiver and 1 KB data buffer.
    • M483 – Dual CAN 2.0B, dual USB supporting High Speed (HS) OTG and Full Speed (FS) OTG
    • M484 –USB 2.0 High Speed device/host/OTG with integrated HS transceiver and 4 KB data buffer, USB 2.0 Full Speed device/host/OTG with integrated FS transceiver and 1 KB data buffer.
    • M485 – Hardware cryptography accelerator engine including ECC-571, AES-256, SHA-512 and HMAC-512, random number generator, and dual USB 2.0 device/host/OTG.
    • M487 – 10/100M Ethernet MAC with RMII/MDC/MDIO interface, hardware cryptography engine, dual CAN 2.0B, an


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  • M451 Series: 72 MHz CPU, up to 256 KB of Flash memory, up to 32 KB of SRAM memory, and Quad-SPI interface
    • M451 – 144 MHz PWM, 1 MSPS 12-bit ADC, and 1MSPS 12-bit DAC
    • M4521 – USB 2.0 Full Speed device/host with integrated FS transceiver and USB crystal-less
    • M452 – USB 2.0 Full Speed device/host/OTG with integrated FS transceiver
    • M453 – CAN 2.0B, USB 2.0 Full Speed device/host/OTG with integrated FS transceiver


  • NUC505 Series: 100 MHz CPU, up to 2048 KB SPI Flash memory, and 128 KB SRAM
    • NUC505 – 24-bit Audio CODEC, USB HS Device, USB FS Host, and SDHC

M487 Ethernet Series

M485 Crypto Series

M484 USB HS OTG Series

M483 CAN Series

M482 USB FS OTG Series

M481 Base Series

M4TK Touch Key Series

M451 Base Series

M4521 USB Series

NUC442/472 Series

M452 USB Series

M453 CAN Series

NUC505 Series

M451M Series

ARM Cortex-M0 MCUs

As one of the leading microcontroller ( MCU ) companies in the world, Nuvoton provides the state-of-the-art NuMicro® 32-bit MCU Family powered by the Arm® Cortex®-M0 core. The Cortex®-M0 MCUs provide wide operating voltage from 2.1V to 5.5V, industrial temperature from - 40 ℃ to +105 ℃, high accuracy oscillator and high noise immunity ( 8 kV ESD, 4 kV EFT ).

The NuMicro® Cortex®-M0 Family MCUs under mass production include:

  • Mini51 series is low pin count and cost-effective
  • Mini57 series has hardware divider, 1.5 KB Secure Protection ROM ( SPROM ),   Programmable Gain Amplifier ( PGA ), 12-bit ADC with two sample & holds function
  • Mini55 series has hardware divider and up to 33 effective I/O ports
  • M051 series is competitive
  • M0518 series has 16-bit 24 channels PWM and up to 6 UARTs
  • M0519 series has 2 ADCs and 2 OP Amps
  • M0564 series has 256 KB Flash size, Voltage Adjustable Interface ( VAI ), up to  144MHz   PWM, independent power source for RTC ( VBAT ) as well as rich peripherals
  • NUC100/200 advanced series
  • NUC120/123/220 series with high-performance USB 2.0 FS device
  • NUC121/125/126 USB crystal-less series  
  • NUC126 series has 256 KB Flash size, Voltage Adjustable Interface ( VAI ), up to   144MHz   PWM, independent power source for RTC ( VBAT ) as well as rich peripherals
  • NUC130/131/140/230/240 CAN 2.0B ( Controller Area Network ) bus series
  • Nano series ( Nano100/110/120/130/102/112/103 ) is Ultra-low power with supply voltage    from 1.8V to 3.6V, less than 1 μA stand by current, incorporating the LCD driver ( 4 x 40 & 6 x 38 ) as well as independent power source for RTC ( VBAT )

The Cortex®- M0 MCUs are ideal solutions for industrial control systems, industrial automation, consumer products, embedded network control, energy, power systems, and motor control applications with excellent performance.

M031BT Series

M0A21 Series

M0A23 Series

M031 Series

M032 Series

NUC029 Series

Nano103 Base Series

Nano100/102 Base Series

Nano110/112 LCD Series

Nano120 USB Series

Nano130 Advanced Series

NUC100/200 Advanced Series

NUC120/122/123/220 USB Series

NUC121/125 Series

NUC126 USB Series

NUC130/230 CAN Series

NUC140/240 Connectivity Series

M051 Base Series

Mini51 Base Series

M0518 Series

NUC131/NUC1311 CAN Series

M0519 Series

M0564 Series

You got a good view on the Nuvoton Microcontroller portfolio now. If you still look for a different microcontroller get in contact with us or read more here