ATmega328P Microcontroller from China
The ATmega328P from Microchip (formerly Atmel) is a popular 28-pin 16-bit AVR 8/16-bit microcontroller with 32KB Flash, used in Arduino Uno boards. It qualifies for HTS 8542.31.00.20 due to its 16-bit controller capabilities with integrated memory and clock circuits.
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%Universal product exemption (U.S. note 52(b))
Import Tips
• Arduino boards containing this chip classify as complete assemblies (8471.49), not individual ICs
• Specify DIP/TSSOP package type in documentation; affects ESD handling requirements