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M2L31ZE4AE
https://www.nuvoton.com.cn/products/microcontrollers/arm-cortex-m23-mcus/m2l31-series/m2l31ze4ae/
The NuMicro® M2L31ZE4AE is based onArm® Cortex®-M23 core at Armv8-M architecture. It runs up to 72 MHz and features 128 Kbytes ReRAM, 40 Kbytes SRAM, 1.71V ~ 3.6V operating voltage, -40°C ~ 105°C wide operating temperature, QFN33 package, and excellent high immunity characteristics by 4 kV ESD HBM and 4.4 kV EFT. In Normal Run mode, the power consumption is 66 μA/MHz at 72 MHz. It supports 3 additional power-down levels, including Normal Power-down, Standby Power-down, and Deep Power-down mode. In the Normal Power-down mode, MIRC, LIRC and LXT can be operated to shorten the stable time of high precision sensors. in additional, features Auto-operation mode in low power domain to proceed sensor data through low power serial interface without interrupting CPU. For the development tool, NuMaker-M2L31SG evaluation board and Nu-Link debugger are powerful tools for product evaluation and development. It supports IDEs provided by third parties, such as Keil MDK, IAR EWARM and NuEclipse IDE with GNU GCC compiler. Key Features: • Operating Characteristics - Voltage range: 1.71V ~ 3.6V - Temperature range: -40°C ~ +105°C • Core - Arm Cortex-M23 core running up to 72 MHz - 32-bit hardware multiplier/divider • Memory - 128 KB Resistive RAM (ReRAM) memory without the need for an erase cycle to save read and write time - 40 KB SRAM with 40 KB parity check - Independent 8 KB Low Power SRAM - 8 KB LDROM - 4 sets of eXecute-Only-Memory (XOM) regions - 4 sets of Memory Protection Unit (MPU) memory regions • Supports program update by - ISP ( In-System Programming ) - ICP ( In-Circuit Programming ) - IAP ( In-Application Programming) • Clocks - 4 to 32 MHz external crystal oscillator - 32.768 kHz external crystal oscillator for RTC - Internal 12 MHz RC oscillator with ±2% deviation at -40℃ ~ +105℃ - Internal 48 MHz RC oscillator with ±2% deviation at -40℃ ~ +105℃ - Internal 1 ~ 8 MHz MIRC with ±10% deviation at -40℃ ~ +105℃ - Internal 32 kHz RC oscillator ±10% deviation - Internal PLL up to 144 MHz • Low Power Consumption - Normal run: 66 μA/MHz at 72 MHz - Idle mode: 33 μA/MHz at 25°C/3.0V, all peripherals disabled condition - NPD without power gating (NPD2 mode): 55 μA, at 25°C/3.0V - NPD with power gating (NPD4 mode): 9 μA, at 25°C/3.0V - SPD with 40 KB SRAM retention: 1.7 μA, at 25°C/3.0V - DPD: 0.54 μA at 25°C/3.0V, RTC and LXT disabled • Timers - 4 sets of 32-bit timers, supporting up to 1 independent PWM output - 12-channel Enhanced PWM with twelve 16-bit counters, up to 144 MHz for timer clock source - 2 sets of 24-bit Low Power Timers - 2 sets of Tick Timers - 1 set of 24-bit count-down SysTick timer - 1 set of watchdog timer - 1 set of window watchdog timer • PDMA - 10 channels of Peripheral DMA Controller • RTC and VBAT - Independent VBAT power pin for RTC • Control Interfaces - Voltage Adjustable Interface (VAI) - 2 sets of Enhanced Quadrature Encoder Interfaces (EQEI) - 2 sets of input Enhanced Input Capture timers (ECAP) • Cryptography Accelerator - Cyclic Redundancy Calculation Unit - AES encryption with 128/192/256-bit key - True random number generator (TRNG) - Pseudo random number generator (PRNG) - Three Tamper pins • Analog - Built-in internal reference voltage - Built-in temperature sensor - 1 set of 12-bit, 10-channel 3.42 Msps SAR ADC - 1 set of 12-bit, 1 Msps DAC with buffer - 3 sets rail-to-rail comparators with 6-bit DAC function - 2 sets of OP Amplifiers • Communication interfaces - 6 sets of UART interfaces - 1 set of LPUART interface - 2 sets of SPI/I²S (36/18 MHz) - 1 set of USCI interface (UART / SPI / I²C) - 2 sets of I²C interfaces - 1 set of Low Power I²C interfaces (400 kbps) - 1 set of Low Power SPI interface (12/6 MHz) - 1 set of Quad Serial Peripheral Interface (QSPI) - 1 set of CAN FD controllers - Supports USB 2.0 full speed OTG/Host/Device controller with maximum 1024 bytes’ buffer size - Compliant with Type-C (Rev.2.1) and Power Delivery (Rev. 3.0) specification • IEC-60730 Class B compliance • Evaluation Board - NuMaker-M2L31SG
M2354 Series
https://www.nuvoton.com.cn/products/microcontrollers/arm-cortex-m23-mcus/m2354-series/
NuMicro® M2354 Series – IoT Security MCU with Chip-Level Physical Security, Ultra-low Power Performance, and Complies with International Mainstream IoT Security Standards Flash Memory/ SRAM (Kbytes) 1024 / 256 M2354LJFAE M2354SJFAE M2354KJFAE 1024 / 256 M2354CJFAE M2354LJFBE M2354SJFBE M2354KJFBE Package WLCSP49 (3.455 x 3.725 mm) LQFP48 (7 x 7 mm) LQFP64 (7 x 7 mm) LQFP128 (14 x 14 mm) NuMicro® M2354 Series is an Arm® TrustZone® microcontroller based on the Armv8-M architecture and powered by the Arm® Cortex®-M23 CPU, designed to enhance IoT security. It is suitable for long-term confidentiality requirements and highly sensitive data protection scenarios. The M2354 Series operates at frequencies up to 96 MHz, offers a wide operating voltage range of 1.7V to 3.6V, and a wide operating temperature range of -40°C to +105°C. The power consumption is 89.3 μA/MHz in LDO mode and 39.6 μA/MHz in DC-DC mode. The Standby Power-Down mode consumes less than 2 μA.
Product and Technology / Nuvoton Technology Launches 8-bit NuMicro® MG51 Series Microcontrollers
https://www.nuvoton.com.cn/news/news/products-technology/TSNuvotonNews-000564/
Nuvoton Technology Launches 8-bit NuMicro® MG51 Series Microcontrollers 5V, Up to 64KB Flash Memory, Rich Peripherals, and High Noise Immunity Empowering Industrial and Home Appliance Applications Hsinchu, Taiwan - July 31, 2025 - Nuvoton Technology releases the enhanced 1T-8051 microcontroller series – NuMicro® MG51, tailored for applications such as home appliances, LED dimming, motor control, and industrial automation. Key Features of the NuMicro® MG51 Series: High-Speed Core: 1T-8051 core running up to 24 MHz. Rich Memory: Up to 64 KB of Flash memory, 4 KB of SRAM, and 4 KB of LDROM. Robust Operation: Wide voltage (2.4V-5.5V) and industrial temperature (-40°C to +105°C) support. High Noise Immunity: 7 kV ESD (HBM) and 4.4 kV EFT protection. Advanced Control: Up to 12-channel PWM for precise motor control. Flexible Communication: Up to 5 UARTs, SPI, and I²C interfaces. High-Precision Sensing: 15-channel, 12-bit ADC with 500 kSPS sampling rate.
Product and Technology / Nuvoton Technology Unveils Upgraded NuMicro® M2354 MCU: Enhanced Security and Compact Footprint for Server, IoT, and Edge
https://www.nuvoton.com.cn/news/news/products-technology/TSNuvotonNews-000568/
Nuvoton Technology Unveils Upgraded NuMicro® M2354 MCU: Enhanced Security and Compact Footprint for Server, IoT, and Edge High Security Integration, Low Power, and Small Package, Providing Cost-Effective RoT Hsinchu, Taiwan - Aug. 29, 2025 - Nuvoton Technology releases the upgraded NuMicro® M2354, tailored for applications such as server RoT, smart city, IoT, and smart metering. NuMicro® M2354 is an Arm® TrustZone® microcontroller based on the Armv8-M architecture and powered by the Arm® Cortex-M23® CPU, designed to enhance IoT security. It is suitable for long-term confidentiality requirements and highly sensitive data protection scenarios. The M2354 operates at frequencies up to 96 MHz, offers a wide operating voltage range of 1.7V to 3.6V, and a broad operating temperature range of -40°C to +105°C. The power consumption is 89.3 μA/MHz in LDO mode and 39.6 μA/MHz in DC-DC mode. The Standby Power-down mode consumes less than 2 µA, and the Deep Power-down mode without VBAT consumes
Product and Technology / Nuvoton’s Brand-New M55M1 AI MCU Debuts, Featuring Built-in NPU for Unmatched Entry-Level AI Performance
https://www.nuvoton.com.cn/news/news/products-technology/TSNuvotonNews-000573/
Nuvoton’s Brand-New M55M1 AI MCU Debuts, Featuring Built-in NPU for Unmatched Entry-Level AI Performance Hsinchu, Taiwan – October 28, 2025 – Nuvoton Technology officially launches its latest generation AI microcontroller, the NuMicro® M55M1, specifically designed for edge applications such as AI data recognition and intelligent audio. Positioned as a rare entry-level AI solution in the market, the M55M1 integrates an NPU delivering up to 110 GOPS of AI computing power, providing over 100 times the inference performance compared to traditional 1GHz MCUs. Paired with Nuvoton’s self-developed NuML Tool Kit, it enables developers to quickly get started with AI applications in a familiar MCU development environment. A variety of AI models are also available for trial, including face recognition, object detection, audio command recognition, and anomaly detection, effectively lowering the technical barrier and accelerating product deployment. To meet diverse AI application scenarios, the
M253 Series
https://www.nuvoton.com.cn/products/microcontrollers/arm-cortex-m23-mcus/m253-series/
Flash Memory/ SRAM (Kbytes) 128 / 16 M253ZE3BE M253LE3BE 64 / 16 M253LD3BE QFN33 (5 x 5 mm) Pitch 0.4 mm LQFP48 (7 x 7 mm) Pitch 0.5 mm The NuMicro® M253 series 32-bit microcontroller is based on Arm® Cortex®-M23 core using Armv8-M architecture. The M253 runs up to 48 MHz and features up to 128 KB Flash, 16 KB SRAM, 1.75V ~ 5.5V wide operating voltage, and -40°C to +105°C operating temperature. It includes a crystal-less USB 2.0 full speed device and one set of CAN FD interface for industrial automation and automotive related applications. The USB interface supports up to 17 configurable endpoints, equivilent to 5 VCOMs for configurable Isochronous, Bulk, Interrupt and Control transfer types, and maximum 1 Kbyte buffer size. The CAN FD interface is eligible for automotive related and industrial control applications, and it supports up to 5 sets of UART with flow control and PDMA mode privided . The 4 UARTs are equipped with 16 bytes of FIFO for data receive and transmit.
Product and Technology / Nuvoton Launches NuML Studio: A Simple Tool to Build and Deploy AI on Microcontrollers
https://www.nuvoton.com.cn/news/news/products-technology/TSNuvotonNews-000612/
Nuvoton Launches NuML Studio: A Simple Tool to Build and Deploy AI on Microcontrollers A one-stop solution for data collection, model conversion, and firmware generation for Nuvoton MCUs Hsinchu, Taiwan– May 13, 2026 – Nuvoton Technology, a leading global semiconductor provider, has announced the launch of ” NuML Studio”. This is a graphical user interface (UI) tool designed specifically for machine learning applications on Nuvoton microcontrollers (MCUs). NuML Studio helps developers solve common problems when building Endpoint AI, providing a clear path from real-time data collection to automatic firmware project generation. This allows developers to focus more on improving their AI models and creating new applications. Easy Setup to Start AI Development Immediately NuML Studio is optimized for Windows and provides a "ready-to-use" version that does not require users to install Python or complex software libraries, making it significantly easier for beginners to set up their
Product and Technology / Nuvoton Launches High Immunity ARM Cortex®- M4 based NuMicro M451 Series MCU with 5V input and Pin Compatible with the M051 Series
https://www.nuvoton.com.cn/news/news/products-technology/TSNuvotonNews-000189/
NuTiny-SDK-M451 2015/6/26 – Nuvoton launches the high immunity NuMicro M451 series embedded with the ARM® Cortex®-M4F core. The NuMicro M451 series provides the wide operating voltage (2.5V-5.5V) and 5V input support for I/O to significantly enhance system stability, industrial operating temperature (-40°C - 105°C), 22.1184 MHz internal RC oscillator (variation < ±2%) and 32.768 kHz external crystal oscillator (variation < ±0.25%) working at -40˚C- 105˚C to boost system immunity and adequately fulfill the high precision demand of communications. The NuMicro M451 series is specifically suitable for high-performance and high-precision applications, such as industrial control, system automation, security surveillance, autotronics and digital power control. The specially designed VAI (Voltage Adjustment Interface) system supports voltage level adjustment for individual I/O (1.8V-5.5V) to save additional cost on adjusting the interface voltage difference of peripheral components.
Product and Technology / Nuvoton Launches High Performance NuMicro® M480 Series Arm Cortex®-M4 Microcontroller with Secure Boot Function and Hardware Cryptography
https://www.nuvoton.com.cn/news/news/products-technology/TSNuvotonNews-000236/
Hsinchu, Taiwan－2018/06/11－Nuvoton Technology Corp., a leading microcontroller provider, announces the launch of its high performance, low power NuMicro® M480 series - an Arm® Cortex®-M4 based microcontroller, supporting DSP instruction and integrated floating-point unit. The M480 series provides rich features and consists of six sub-series targeting different applications. The M480 series supports up to 512 KB Flash and 160 KB SRAM. The operation frequency is up to 192 MHz with 175µA/MHz dynamic power consumption, and the standby current can be as low as 1µA. The secure boot functionality provides a constant digital signature of system software for identification during boot up to protect the integrity of Flash data from malicious attack. The embedded hardware cryptography engine provides fast and easy encryption, decryption, and authentication. Furthermore, the M480 series also supports 10/100 Mbps Ethernet RMII, high-speed USB 2.0 OTG and rich peripherals, making it the ultimate
Product and Technology / Nuvoton Launches NuMicro® M2351 Series TrustZone® Empowered Microcontroller Focusing on IoT Security
https://www.nuvoton.com.cn/news/news/products-technology/TSNuvotonNews-000239/
Hsinchu, Taiwan – Sep. 10th, 2018 –The rise of the internet of things era has increased awareness for the integration of the physical world into digital systems. While the digitization of our everyday lives led to efficiency improvements and economic benefits, it has also caused pressure on systems designers who are now required to come up with innovative IoT products capable of performing secure connection and data exchange while maintaining low power consumption. Since security and power consumption are the key requirements of IoT application, Nuvoton launches the NuMicro M2351 Series, which excels in supporting the proliferation of intelligent connected devices. Its secure and efficient power management features strengthen the innovation of IoT security and collaborative software development, such as the IoT devices with a secure connection, smart home appliance, fingerprint locks. The NuMicro M2351 microcontroller series is powered by Arm® Cortex®-M23 core and operates at up to 64
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