Microcontroller

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A microcontroller is a small computer on a single integrated circuit.

Trezor ONE

The ARM® Cortex™-M3-based STM32 F2 series uses ST’s advanced 90 nm NVM process technology with the innovative adaptive real-time memory accelerator (ART Accelerator™) and multi-layer bus matrix.

See also this GitHub page.

Trezor T

The ARM® Cortex®-M4-based STM32F4 MCU series leverages ST’s NVM technology and ART Accelerator™ with up to 225 DMIPS/608 CoreMark executing from Flash memory at up to 180 MHz operating frequency.

See also this GitHub page.