Nuvoton Technology announced the launch of NuMicro M5531 series microcontrollers, powerful MCUs designed to deliver advanced digital signal processing performance. Based on the Arm Cortex-M55 processor, the M5531 series runs at speeds up to 220 MHz, delivering up to 371 DMIPS of computing performance. It also features excellent noise immunity, passing 3 kV ESD HBM and 4.4 kV EFT tests, providing users with stable and high-speed system performance.
Comprehensive Security Features Designed to Meet PSA Level 2 Requirements
Recognizing the growing demand for enhanced product security, the M5531 series integrates multiple hardware-based security mechanisms to strengthen system integrity and protection. These include Arm TrustZone, Secure Boot, cryptographic engines (AES-256, ECC-571, RSA-4096, SHA-512, HMAC-512), Key Store, Key Derivation Function, True Random Number Generator (TRNG), eXecute-Only-Memory, One-Time Programmable Memory (OTP), and tamper detection pins.
In terms of power efficiency, the M5531 series delivers impressive performance with a dynamic power consumption as low as 94.5 µA/MHz. It also offers multiple low-power peripherals such as LPSRAM, LPPDMA, LPTimer, and 12-bit LPADC, allowing the system to maintain essential functions in low-power modes.
Application Fields
The M5531 series is suitable for a wide range of industrial, consumer, and connected products, including:
Industrial IoT (e.g., industrial gateways, communication modules)
Industrial automation (e.g., PLC protocol converters)
Smart building systems (e.g., fire alarm systems, LED advertising display)
HMI applications (e.g., smart thermostats)
Sensor fusion (e.g., environmental data collectors)
