M2351SIAAE

Introduction

The NuMicro® M2351 Series, developed by Nuvoton, is a TrustZone®-empowered microcontroller series with a primary focus on Internet of Things (IoT) security. As the IoT environment develops, the integration of physical realms into digital systems has become vital, placing pressure on system designers to create innovative products capable of connecting and exchanging data incessantly. The NuMicro® M2351 series is an outstanding solution that caters to this demand, largely due to its excellent features centered on IoT security and low power consumption. This series is powered by the Arm® Cortex®-M23 core with TrustZone® for Armv8-M architecture, which guarantees more robust software security, providing an elevated level of firmware security in the process.

Function & Applications

The M2351 microcontroller series supports 64 MHz with up to 512 Kbytes embedded Flash memory in dual bank mode. This provision supports secure OTA (Over-The-Air) firmware update and up to 96 Kbytes embedded SRAM. Moreover, the M2351 series also provides high-performance connectivity peripheral interfaces, including UART, SPI, I2C, GPIOs, USB, and ISO 7816-3 for a smart card reader. These secure and low-power features strengthen IoT security. The M2351 series is highly suitable for IoT devices requiring secure connections, collaborative secure software development, fingerprint cards, smart home appliances, smart city facilities, WSND, AMR, portable wireless data collectors, digital currency authentication, and TEE with TAs.

Performance Parameters

The M2351 series offers low power consumption, consuming only 97 µA/MHz in LDO mode and 45 µA/MHz in DC-DC mode. The standby power-down current is 2.8 µA, while deep power-down mode without VBAT is less than 2µA.

Package Types, Interface & Pin Configuration

Regarding the packages, this microcontroller series comes in an LQFP 64-pin package. With various interfaces available such as UART, SPI, I2C, GPIOs, and USB, it provides flexible options for various applications.

Reliability and Lifespan

The NuMicro® M2351 series is designed for reliable performance across a vast range of applications. While specific lifespan details may vary depending on individual use cases, Nuvoton's quality assurance processes ensure that these robust and reliable microcontrollers deliver excellent performance throughout their operational lifetime.

Standards and Certifications

The NuMicro® M2351 series aligns with the Arm® Platform Security Architecture (PSA) and the Trusted Base System Architecture-M (TBSA-M). Nuvoton has also developed the Nuvoton Secure Microcontroller Platform (NuSMP) to support the Arm® PSA, addressing the security requirements of general-purpose and secure IoT microcontrollers effectively.

Application Cases & Reference Designs

The NuMicro® M2351 series is useful in a multitude of applications. For instance, IoT devices requiring secure connections can greatly benefit from this microcontroller series. Moreover, it fosters a collaborative secure software development business model and enhances technologies such as fingerprint cards, smart home appliances, smart city facilities, portable wireless data collectors, and digital currency authentication. Additionally, the Arm® Mbed OS for IoT solutions and the Segger emWin for interactive interfaces are both supported in the M2351 Series, presenting users with a wealth of resources to develop and implement their projects effectively.