💾 Data Updated: 2025 HTS Revision 30 • Last updated: November 24, 2025

8542.31.00.35 - Digital signal processors (DSPs)

Details

FieldValue
Unit of QuantityNo.
General Rate of DutyFree
Special Rate of DutyN/A
Column 2 Rate of Duty35%
Quota QuantityN/A
Additional DutiesN/A

Overview

This HTS category covers Digital Signal Processors (DSPs). DSPs are specialized microprocessors designed for the efficient processing of digital signals, such as audio, video, and sensor data. Unlike general-purpose processors, DSPs are optimized for repetitive mathematical operations inherent in signal manipulation, including filtering, Fourier transforms, and compression, making them crucial components in telecommunications, multimedia, and embedded systems.

When classifying integrated circuits, it is important to distinguish DSPs from other processor types. Graphics Processing Units (GPUs) (8542.31.00.40) are optimized for rendering images and parallel processing of graphical data. Central Processing Units (CPUs) (8542.31.00.45) are designed for general-purpose computation and executing a wide range of instructions. DSPs are specifically engineered for the high-speed, real-time manipulation of digital signals, which differentiates them from the primary functions of GPUs and CPUs.

As this is a leaf node in the HTS classification, there are no further subcategories for Digital Signal Processors. Therefore, classification at this level relies on accurately identifying the primary function and architecture of the integrated circuit as a dedicated digital signal processor.

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