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ESP8266EX Microcontroller Module

Espressif ESP8266EX is an 8-bit Tensilica processor-based SoC with WiFi for IoT applications. Classified HTS 8542.31.00.15 as an 8-bit controller despite wireless features due to primary microcontroller function with integrated memory and radio circuits.

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.

8517.62.00Lower: 32.5% vs 50%

If classified primarily by wireless communication function

Machines transmitting voice/data may shift from IC to telecom equipment.

8542.31.00Same rate: 50%

If non-specific controller categorization

General processors vs specialized controllers affect statistical reporting.

8523Lower: 12.5% vs 50%

If with substantial non-volatile memory dominating

Smartcards or storage-heavy ICs classify under disc/media headings.

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

• Include FCC certification for wireless functionality to avoid telecommunications equipment scrutiny

• Declare WiFi specs separately but maintain IC classification focus

• Monitor for reclassification as transmission apparatus if radio dominates

Related Products under HTS 8542.31.00.15

Z8 Encore! Microcontroller

ZiLOG Z8 Encore! XP 8-bit microcontroller with 4KB Flash for security systems and toys. HTS 8542.31.00.15 for 8-bit controller with integrated oscillators and brown-out detection.

ATmega328P Microcontroller

The ATmega328P is an 8-bit AVR RISC-based microcontroller with 32KB flash memory, commonly used in Arduino Uno boards for hobbyist and educational projects. It falls under HTS 8542.31.00.15 as an 8-bit controller featuring integrated memories, timers, and I/O ports. This classification applies to its role as a general-purpose microcontroller for embedded systems.

PIC16F877A Microcontroller

The PIC16F877A is an 8-bit CMOS microcontroller from Microchip with 8K words of flash program memory and multiple peripherals like UART and ADC. Classified under HTS 8542.31.00.15 due to its 8-bit controller design for industrial automation and consumer electronics. It combines memory, logic circuits, and timers in a single chip.

STM8S103F3P6 Microcontroller

STMicroelectronics STM8S103F3P6 is a high-performance 8-bit microcontroller with 8KB Flash and 1KB RAM for automotive and appliance control. It qualifies for HTS 8542.31.00.15 as an 8-bit controller with integrated clock, converters, and logic circuits. Ideal for cost-sensitive embedded applications.

ATtiny85 Microcontroller

The ATtiny85 is a compact 8-bit AVR microcontroller with 8KB Flash, used in wearables and IoT sensors. Under HTS 8542.31.00.15 for its 8-bit controller features including ADC, PWM, and USI interface. Perfect for space-constrained designs.

HCS12 Microcontroller

NXP HCS12 family 8-bit microcontroller for automotive ECUs with CAN interface and flash memory. HTS 8542.31.00.15 applies to its 8-bit controller architecture with integrated communication and timing circuits for vehicle control systems.