| Partie n | Fabricant | Application |
|---|
| HT9320L-X | Holtek | 22-memory tone/pulse dialer |
| HT814D0 | Holtek | 8.4 second LOG-PCM speech |
| HT9170D | Holtek | DTMF receiver |
| HT818D0 | Holtek | 22.4 second LOG-PCM speech |
| HT48C30 | Holtek | 8-bit microcontroller |
| HT84072 | Holtek | 72 sec Magic Voice (programmable speech synthesizer and tone generator) |
| HT818D0 | Holtek | 22.4 second LOG-PCM speech |
| HT7430 | Holtek | -3.0V negative voltage regulator |
| HT1071 | Holtek | Voltage regulator, output 7.0V |
| HT7136-1 | Holtek | 30mA voltage regulator 3.6V, tolerance 3% |
| HT1050 | Holtek | Voltage regulator, output 5.0V |
| HT9302A | Holtek | 1-memory/2-memory tone/pulse dialer |
| HT1015 | Holtek | 1.5V voltage regulator |
| HT49C10 | Holtek | 8-bit microcontroller |
| HT7500 | Holtek | Clinical thermometer |
| HT93LC56 | Holtek | 2K 3-wire CMOS serial EEPROM |
| HT48C30 | Holtek | 8-bit microcontroller |
| HT12A | Holtek | 4096 series of encoders, 2.4V-5V, with a 38kHz carrier for infrared, standby current 0.1uA |
| HT1608L | Holtek | 2x20 channel LCD driver |
| HT605L | Holtek | Decoders for burglar alarm system, car door controllers and etc. |
