Designing a battery powered product where every millivolt counts? AVR LA is designed for low-voltage applications that also need a reliable capacitive touch interface.
It operates from 1.62V to 5.5V with the AVR core running at up to 20 MHz across the entire supply range, no speed derating as voltage drops. With standby sleep current down to 60 nA, it is well suited for battery-powered designs that need to stay responsive while stretching runtime.
The on-chip Peripheral Touch Controller (PTC) supports up to 27 self-capacitance channels with touch capabilities on almost every pin. Driven Shield+ and Boost Mode technologies improve noise immunity, which matters in real-world environments where RF interference or moisture can cause false triggers. No external touch controller IC is needed.
Once your firmware is production-ready, the Program and Debug Interface Disable (PDID) permanently locks the debug interface at the hardware level, no relying on software-based protection.
For automotive HMI work, the AVR LA is AEC-Q100 Grade 1 certified and functional safety ready.
The EV24D63A Curiosity Nano Evaluation Kit supports MPLAB® X IDE, MPLAB Extensions for VS Code, and IAR Embedded Workbench. The included touch library lets you get capacitive touch running quickly alongside low-voltage characterization on the same board.
Here’s how you can get started-
Getting Started With the AVR32LA32 Microcontroller Using the Curiosity Nano Board and MCC Melody
Self-Capacitance-Touch-using-AVR32LA32-Microcontroller-with-QT7-XPRO
Curiosity Nano Out-of-the-Box Code Using the AVR32LA32
Low power touch using AVR32LA32 Microcontroller with QT7 Xpro
Check out on Digikey:
AVR32LA32-I/PT Microchip Technology | Microcontrollers | DigiKey
AVR32LA20-I/2LX Microchip Technology | Microcontrollers | DigiKey
Start developing with Curiosity Nano Evaluation Kit
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