Heading 8542

Electronic integrated circuits; parts thereof

31 declarable lines

Heading 8542 covers electronic integrated circuits, meaning monolithic and hybrid circuits formed on a semiconductor substrate, plus parts of those circuits. The heading splits first by function: processors and controllers in 8542.31, memories in 8542.32, amplifiers in 8542.33, other circuits in 8542.39, and parts in 8542.90. Every declarable line in this heading carries a general (MFN) rate of Free.

Products in this heading

A 32-bit microcontroller chip for an appliance control board
A central processing unit (CPU) sold as a single chip for a computer
A graphics processing unit (GPU) chip
A field programmable gate array (FPGA)
A DRAM memory chip rated over 1 gigabit
An EEPROM memory chip
An analog to digital converter (ADC) integrated circuit
An audio amplifier integrated circuit

How to choose the right subheading

The function of the circuit: processor or controller, memory, amplifier, or other circuit.
For controllers, the bit width: 8-bit, 16-bit, 32-bit, or other.
For processors, the type: DSP, GPU, CPU, or other.
For memories, the technology and density: DRAM by megabit or gigabit threshold, SRAM, EEPROM, EPROM, or other.
Whether the article is a complete integrated circuit or a part of one, which moves it to 8542.90.

Often confused with

Discrete transistors and diodes
Single semiconductor devices that are not integrated circuits are classified in 8541.
Heading 8541
Light-emitting diodes (LEDs)
LEDs, including LED chips, are named in 8541 rather than 8542.
Heading 8541
Mounted piezo-electric crystals
Mounted crystals are specifically provided for in 8541.
Heading 8541
Populated circuit board assemblies that are parts of a specific machine, such as a laptop motherboard
Boards that are identifiable parts of an automatic data processing machine follow the parts heading for that machine, not 8542.
Heading 8473

Frequently asked questions

What is the HTS code for a 32-bit microcontroller?

A 32-bit controller, including microcontrollers, is classified under 8542.31.00.25. The general (MFN) rate for that line is Free.

What is the duty on DRAM chips over 1 gigabit?

DRAM over 1 gigabit falls under 8542.32.00.36. The general (MFN) rate is Free.

How do I classify an analog to digital converter?

Analog to digital converters are classified under 8542.39.00.30 as data converters within the other circuits group. The general (MFN) rate is Free.

Guide written from the official schedule text. Rates quoted are general (MFN) rates; check the line page for trade agreement rates and the classification of your exact product.