SAM D21G18A 32-bit ARM Cortex-M0+ MCU
Microchip SAM D21G18A is a low-power 32-bit ARM Cortex-M0+ microcontroller with 256KB Flash, event system, and multiple low-power modes for battery-powered IoT sensors. HTS 8542.31.00.25 classification based on 32-bit controller architecture.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If analog peripherals dominate digital control
Amplifier/converter focused ICs classified as other circuits.
If bare chip imports
Wafers and dice before packaging classified separately.
If designed as sensor interface controller
Measuring instrument specific controllers may fall under Chapter 90.
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Import Tips & Compliance
• Low-power MCUs popular for wearables; ensure battery safety compliance
• Cortex-M0+ bit width confirmed 32-bit despite minimal instruction set
• SERDES interfaces may affect classification if high-speed serial primary
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