SAM D20 16-bit ARM Cortex-M0+ from China
Microchip SAM D20 series 32-pin 16-bit ARM Cortex-M0+ microcontroller with 256KB Flash for IoT applications. Classified HTS 8542.31.00.20 despite Cortex-M0+ branding due to 16-bit effective controller architecture.
Duty Rate — China → United States
50%
Rate breakdown
9903.91.0550%Effective with respect to entries on or after January 1, 2025, articles the product of China, as provided for in subdivision (f) of U.S. note 31 to this subchapter
9903.05.860%Articles provided for in subdivision (b) of U.S. note 52 to this subchapter
Import Tips
• ARM badge doesn't determine HTS; verify actual bit width via datasheet
• USB-enabled variants require interface specification
• Common in dev kits; classify boards separately from bare ICs