| 8542.31 | | Processors and controllers, whether or not combined with memories, converters, logic circuits, amplifiers, clock and timing circuits, or other circuits |
| 8542.31 | 010 | - Uncased |
| 8542.31 | | - Other |
| 8542.31 | 020 | -- Hybrid integrated circuits |
| 8542.31 | | -- Other |
| 8542.31 | 031 | --- MPU (Microprocessor unit) |
| 8542.31 | 032 | --- MCU (Microcontroller unit) |
| 8542.31 | 033 | --- DSP (Digital signal processor) |
| 8542.31 | 039 | --- Other |
| 8542.32 | | Memories |
| 8542.32 | | - Uncased |
| 8542.32 | 011 | -- DRAM (Dynamic random access memory), metal oxide semiconductors (MOS technology) of the digital monolithic integrated circuits |
| 8542.32 | 019 | -- Other |
| 8542.32 | | - Other |
| 8542.32 | | -- RAM (Random access memory) |
| 8542.32 | 021 | --- DRAM (Dynamic random access memory), metal oxide semiconductors (MOS technology) of the digital monolithic integrated circuits |
| 8542.32 | 029 | --- Other |
| 8542.32 | | -- ROM (Read only memory) |
| 8542.32 | 031 | --- Flash memory |
| 8542.32 | 039 | --- Other |
| 8542.32 | 090 | -- Other |
| 8542.33 | | Amplifiers |
| 8542.33 | 010 | - Uncased |
