Microcontroller

Enhance the Code Security

28. November 2023, 10:45 Uhr | Iris Stroh
© Microchip Technology

More and more everyday items are connected to the cloud. With this rise in connectivity, the need for advanced security measures at the chip level, protecting both firmware and data, is critical.

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To defend against current and ever-expanding security threats, Microchip Technology has launched the PIC18-Q24 Family of Microcontrollers (MCUs). To counter the threat of maliciously reprogramming a device in an embedded system, PIC18-Q24 MCUs introduce the Programming and Debugging Interface Disable (PDID) feature. When enabled, this enhanced code protection feature is designed to lock out access to the programming/debugging interface and block unauthorized attempts to read, modify or erase firmware.

Because many secure systems often connect and communicate with a wide variety of sensors, memory chips and processors, the PIC18-Q24 MCUs feature Multi-Voltage I/O (MVIO). This feature eliminates the need for external level shifters and allows the MCUs to interface with digital inputs or outputs at different operating voltages. In addition to reducing board complexity and Bill of Material (BOM) cost, MVIO makes PIC18-Q24 MCUs especially well-suited as system management processors, performing monitoring and telemetry for a larger processor. These seemingly routine tasks are typically most vulnerable to potential hackers as they try to gain access to embedded systems.

The PIC18-Q24 family is also enabled with the option to have an immutable bootloader for applications that want a secure way to upgrade firmware. To learn more, visit Microchip’s 8-bit PIC MCU webpage.

Development Tools

PIC18-Q24 MCUs are fully supported by Microchip’s comprehensive development ecosystem and designed to integrate with the MPLAB® Code Configurator (MCC). The PIC18F56Q24 Curiosity Nano Evaluation Kit (EV01E86A) offers complete support for designing with the PIC18-Q24 family. These features coordinate for a seamless embedded development experience and reduced time to market.

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