Security

Microchip releases Arm Cortex-M23 based microcontroller

26th May 2022
Tom Anstee

Security threats are growing in complexity and causing product development challenges in the IoT, consumer, industrial, medical and other markets. It is imperative that these products have strong embedded security while also offering low power consumption for longer battery life.

Microchip Technology Inc. has announced the release of the industry's first microcontroller (MCU) to combine a secure subsystem and Arm TrustZone technology in a single package. The PIC32CM LS60, which integrates Microchip's Trust Platform secure subsystem, makes it easier to develop end products using one microcontroller rather than two or more semiconductor chips. Now, designers can go to one trusted source to find a 32-bit MCU that is designed to protect products and the end user from remote or physical attacks on their smart home devices, smartphone or tablet accessories, portable medical devices, wearables, connected appliances and industrial robots.

As the IoT industry continues to grow rapidly, the need for the edge devices to be secured with high standards of protection has become essential. The PIC32CM LS60, with its combination of easy-to-use Arm TrustZone technology and the Common Criteria Joint Interpretation Library (JIL) “high” rated Trust Platform secure subsystem, enables developers to implement industry-proven security practices and countermeasures to protect against a wide class of known remote and physical attacks. These types of designs are supported with tools such as MPLAB Code Configurator (MCC) TrustZone Manager and the Trust Platform Design Suite to simplify the configuration of the secure subsystem. The Microchip Trust Platform provisioning service is available to securely provision keys and certificates.

“With its integration of Arm TrustZone technology and Microchip’s secure subsystem in one package, the PIC32CM LS60 is an offering that the market hasn’t seen before,” said Rod Drake vice president of Microchip Technology’s 32-bit MCU business unit. “We believe this MCU’s security, ease of use and low-power operation will be a powerful shift in implementing advanced security technology in IoT applications.”


With the increased adoption of touch capabilities in waterproof wearables and modern appliances, embedded designers are challenged with developing touch interfaces that work well in noisy and moist environments. The PIC32CM LS60 integrates an enhanced peripheral touch controller with the Driven Shield Plus feature that prevents false touches due to moisture and provides high immunity to noise to enable exceptional touch interfaces.

In addition, the device features core-independent SleepWalking peripherals and the Event System. These peripherals keep the MCU core in sleep mode for extended periods to reduce power consumption. It also comes with on-chip analog that includes operational amplifiers (op amps), digital-to-analog converters (DACs) and analog-to-digital converters (ADCs) that can be operated in sleep modes and interfaced with a variety of sensors. The PIC32CM LS60 is compatible with the MPLAB Data Visualizer and Power Debugger tools that can be used to monitor, analyze, and fine tune power consumption numbers in real-time. This makes it easier for customers to develop low-power applications and release extended-battery-life products to market faster.

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