nuvoton News - CNX Software - Embedded Systems News

August 6, 2025 by Jean-Luc Aufranc (CNXSoft) - 3 Comments

Nuvoton MG51 8-bit 8051 MCU family features with up to 64KB flash, 4KB SRAM

NuMaker-MG51FC MG51 8-bit 8051 MCU development board

Nuvoton MG51 Series is a new family of 8-bit 8051 microcontrollers clocked at up to 24 MHz with up to 64KB flash, 4KB SRAM, 5V operation, industrial temperature range, and a range of peripherals such as UART, I2C, SPI, 12-bit ADC, as well as up to 46 GPIOs. Some may have assumed 8-bit microcontrollers may be dead by now, but Nuvoton is not giving up, and after the MUG51 8-bit 8051 microcontroller family was introduced in 2023, the company is at it again with the MG51 Series, offering a higher clock speed, higher memory and storage capacity, and additional I/Os. Target applications include home appliances, LED lighting control, motor control, and industrial automation. Nuvoton MG51 specifications: MCU core – 8-bit 1T 8051-based CMOS microcontroller up to 24 MHz; fully compatible with MCS-51 Memory 256 bytes on-chip RAM Up to 4 KB auxiliary RAM (XRAM) Storage Up to 64 KB Flash […]

July 14, 2025July 14, 2025 by Debashis Das - 4 Comments

Industrial IoT board based on NuMicro M467 Ethernet MCU follows Arduino UNO R4 form factor

Nuvoton NuMaker UNO M4 Cortex M4 industrial dev board

The NuMaker-UNO-M4 is an industrial-grade IoT development board powered by a Nuvoton NuMicro M467 series Arm Cortex-M4F Ethernet MCU and following the Arduino UNO R4 form factor. The board also comes with Ethernet, RS485, CAN FD, and a microSD card slot for data logging. Power options include 5V via USB Type-C, 5–5.5V through a DC jack, and external 3.3V/5V through headers. It also features Arduino-compatible headers, push buttons, status LEDs, and a dedicated high-speed USB for power and programming. Nuvoton NuMaker-UNO-M4 Specifications SoC –Nuvoton NuMicro M467SJHAN CPU – Arm Cortex-M4 @ up to 192 MHz, with FPU and DSP Memory – Up to 512 KB SRAM with 64 KB parity check Storage Up to 1024 KB Flash with dual-bank, FOTA, and XOM support 8 KB LDROM, 3 KB OTP ROM Storage – MicroSD card slot Connectivity – 4-pin 10/100 Mbps Ethernet connector via RealTek RTL8201FI PHY USB – USB Type-C port […]

February 7, 2025February 7, 2025 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

Nuvoton introduces the first security chip based on OpenTitan open-source silicon Root of Trust

OpenTitan demo board Nuvoton open source security chip

Google has announced the start of the fabrication of a Nuvoton security chip featuring OpenTitan open-source silicon Root of Trust (RoT), the first such production-ready chip. It will soon be available in lowRISC’s Voyager 1 demo board, and later this year in Chromebooks and data centers. We first wrote about OpenTitan open-source Root of Trust (RoT) chips in 2020 as a collaboration between Google, Seagate, Nuvoton, Western Digital, lowRISC, as well as some other companies, projects, and universities that aimed at “building a transparent, high-quality reference design and integration guidelines for silicon root of trust (RoT) chips”. OpenTitan itself reached commercial availability last year, after the first engineering samples were released in 2023, and Google now says the Nuvoton chip (yet to have a proper name) is the first production-ready OpenTitan chip. Hardware Root of Trust (RoT) are small secure microcontrollers that are the equivalent of Certificate Authorities (CAs) to […]

August 29, 2024August 29, 2024 by Debashis Das - No Comments

Nuvoton M2003 is a low-cost Arm Cortex-M23 MCU for AIoT and Industrial applications

Nuvoton NuMaker M2003FC development board

Nuvoton has recently launched the Nuvoton M2003 series of low-cost Arm Cortex-M23 microcontrollers which at the time of writing features M2003FC1AE and M2003XC1AE microcontrollers. Major features include a 32-bit hardware multiplier/divider, 32 KB of flash memory, 4 KB of SRAM, multiple communication interfaces (UARTs, I²C, USCI), analog peripherals (8-channel 12-bit ADC, 6-channel 16-bit PWM), and support for a wide voltage and temperature range. These features make this device useful for AIoT, industrial automation, smart homes, energy storage, and automotive electronics, and the company says the low-cost M2003 family offers a migration path from 8-bit to 32-bit designs. Feature-wise both the MCUs are the same and the only difference is in their package. The M2003FC1AE comes in a TSSOP20 package, whereas the M2003XC1AE comes in a QFN20 (3x3mm) package. The NuMaker-M2003FC development board is also offered for evaluation. Nuvoton M2003 series MCU specifications Device – Nuvoton M2003 series of MCUs M2003FC1AE […]

June 21, 2024July 1, 2024 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

Nuvoton NuMicro M2L31 Arm Cortex-M23 MCU embeds up to 512KB high-durability ReRAM, 168KB SRAM

Nuvoton NuMaker-M2L31KI development board

Nuvoton NuMicro M2L31 is a family of Arm Cortex-M23 microcontrollers clocked up to 72 MHz, equipped with 64KB to 512KB high-durability ReRAM (Resistive Random-Access Memory) with fast write speeds, 40KB to 168KB SRAM. The microcontroller supports 1.71V to 3.6V operating voltage, can operate in the -40°C to 105°C temperature range, and offers a wide range of interfaces available through packages as small as WLCSP 25 (2.5 x 2.5 mm) and up to LQFP128 (14 x 14 mm). Arm introduced the Cortex-M23 core in 2016 together with the Arm Cortex-M33 core, but while the latter is widely integrated in a large range of designs, we’ve seen fewer Cortex-M23 microcontrollers with some examples being Microchip SAML10/L11 (2018) and more recently, the Renesas RA0 family. Nuvoton adds another option with the Numicro M2L31 that also happens to integrates ReRAM non-volatile memory. Key Features: MCU core – Arm Cortex-M23 core running up to 72 […]

April 29, 2024April 29, 2024 by Debashis Das - No Comments

Nuvoton NuMicro MA35D0 is a low-cost dual-Core Arm Cortex-A35 microprocessor for industrial edge applications

The Nuvoton NuMicro MA35D0 series is a cost-effective, dual-core Arm Cortex-A35 MPU designed specifically for edge IoT applications. The specifications of this MPU are very similar to the Nuvoton MA35H0, and it looks more like a low-power low-cost version of the NuMicro MA35D1. The MPU features integrated, stacked DDR SDRAM options (128MB or 256MB) to reduce PCB complexity and BOM costs. It also offers some security options with Arm TrustZone, secure boot, cryptographic accelerators, and a True Random Number Generator, making it ideal for industrial applications. The MPU also offers various peripherals and connectivity options including 2x Fast Ethernet (IEEE 1588 v2) interfaces, high-speed USB, SD3.0/eMMC, three CAN FD, eleven UART, and more. Additionally, the MA35D0 MPU supports touchscreens and a TFT LCD controller with resolutions up to 1280×800. Nuvoton NuMicro MA35D0 Series specifications: CPU Sub-system 2x Arm Cortex-A35 cores running at up to 650 MHz L1 Cache – 32 Kbytes instruction […]

March 29, 2024March 31, 2024 by Debashis Das - No Comments

Nuvoton launches M433 Series ultra-low power Arm Cortex-M4F MCUs, NuMaker-M433SE development board

Nuvoton NuMaker M433SE development board

Nuvoton has recently announced their M433 Series MCUs (M433LE8AE and M433SE8AE) along with the NuMaker-M433SE development board. Nuvoton is calling this the “M433 CAN/USB FS OTG” Series, featuring an Arm Cortex-M4F core with DSP and FPU extensions. The MCU is clocked at 144 MHz and consumes 350 nA in deep power-down mode, making it ideal for battery-operated IoT, industrial, and consumer applications. This is not the first Nuvoton MCU we have written about. In recent months, we have seen Nuvoton release the NuMicro M091 Series, the Nuvoton MA35H0 – a cost-optimized MPU, and other dev boards and MCUs. Feel free to check those out if you are interested in the topic. Nuvoton M433 Series MCUs specifications: MCU core 144 MHz Arm Cortex-M4F Includes DSP and FPU instructions Memory Protection Unit (MPU) with 8 regions Memory Up to 128 KB Flash 4 KB LDROM Up to 64 KB SRAM with parity […]

March 19, 2024March 21, 2024 by Debashis Das - 2 Comments

Nuvoton’s NuMicro M091 Arm Cortex-M0 microcontroller targets industrial sensors

nuvoton NuMicro M091 Smart Industrial Sensors Series

Nuvoton recently launched the NuMicro M091 Series of microcontrollers, these are 32-bit MCUs based on the Arm Cortex-M0 core, featuring 4 sets of operational amplifiers with 8 MHz gain bandwidth (GBW), 4 sets of 12-bit DAC, up to 16 channels of 2 MSPS 12-bit SAR ADC, a temperature sensor, and extensive I/O options. The MCU supports the NuMaker evaluation board and various third-party IDEs making this an ideal device for industrial sensing, smart sensors, and precision instrumentation applications. Previously we have seen Nuvoton release MA35H0 and MA35D1 both MPUs are based on Cortex-A35 cores, feel free to check those out if you are interested in the topic. Nuvoton NuMicro M091 MCU specifications: Processor ARM Cortex-M0 core Maximum clock speed: 72 MHz Memory Flash – Up to 64 KB SRAM – 8 KB LDROM – 2 KB (for user program loader) SPROM – 512 Bytes (for security protection) Analog Features 4x […]