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STM32F103C8T6 ARM Cortex-M3 Microcontroller

The STM32F103C8T6 is a 32-bit ARM Cortex-M3 based microcontroller featuring integrated flash memory, timers, and communication interfaces like UART and SPI. It falls under HTS 8542.31.0030 as a controller (microcontroller) that is an electronic integrated circuit, not combined exclusively with memories but including logic and timing circuits for embedded control applications.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳ChinaFree+50.0%50%
🇲🇽MexicoFree—Free
🇨🇦CanadaFree—Free
🇩🇪GermanyFree—Free
🇯🇵JapanFree—Free

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

8542.32.00Same rate: 50%

If primarily memory function dominates

Shifts to 'amplifiers' or memory-type circuits if controller features are secondary to storage.

8542.39.00Same rate: 50%

If for specialized DSP controllers

Other integrated circuits not specifically processors/controllers fall under general category.

8473.30.11Same rate: 50%

If imported as part of complete computer assembly

Parts/Accessories of computers if not imported as standalone ICs.

Not sure which classification is right?

The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.

Import Tips & Compliance

• Verify RoHS compliance and obtain supplier datasheets confirming it's a microcontroller IC for customs classification

• Include ECCN export control numbers if applicable for dual-use semiconductors; avoid misclassification as memory-only

• Package in anti-static materials to prevent damage; declare value per unit accurately for duty calculation

Related Products under HTS 8542.31.00.30