| 693321 | HT9032D | Calling Line Identification Receiver | Holtek Semiconductor |
| 693322 | HT9170 | DTMF Receiver | Holtek Semiconductor |
| 693323 | HT9170B | DTMF Receiver (18DIP) | Holtek Semiconductor |
| 693324 | HT9170D | DTMF Receiver (18SOP) | Holtek Semiconductor |
| 693325 | HT9200 | DTMF Generators | Holtek Semiconductor |
| 693326 | HT9200A | DTMF Generators (8DIP/SOP) | Holtek Semiconductor |
| 693327 | HT9200B | DTMF Generators (14SOP) | Holtek Semiconductor |
| 693328 | HT9202A | 1-Memory/2-Memory Tone/Pulse Dialer | Holtek Semiconductor |
| 693329 | HT9202B | 1-Memory/2-Memory Tone/Pulse Dialer | Holtek Semiconductor |
| 693330 | HT9202C | 1-Memory/2-Memory Tone/Pulse Dialer | Holtek Semiconductor |
| 693331 | HT9202D | 1-Memory/2-Memory Tone/Pulse Dialer | Holtek Semiconductor |
| 693332 | HT9202F | 1-Memory/2-Memory Tone/Pulse Dialer | Holtek Semiconductor |
| 693333 | HT9202G | 1-Memory/2-Memory Tone/Pulse Dialer | Holtek Semiconductor |
| 693334 | HT9202H | 1-Memory/2-Memory Tone/Pulse Dialer | Holtek Semiconductor |
| 693335 | HT9202L | 1-Memory/2-Memory Tone/Pulse Dialer | Holtek Semiconductor |
| 693336 | HT9202S | 1-Memory/2-Memory Tone/Pulse Dialer | Holtek Semiconductor |
| 693337 | HT9274 | Quad Micropower Op Amp | Holtek Semiconductor |
| 693338 | HT9302 | 1-Memory/2-Memory Tone/Pulse Dialer | Holtek Semiconductor |
| 693339 | HT9302A | 1-Memory/2-Memory Tone/Pulse Dialer | Holtek Semiconductor |
|
| 693340 | HT9302B | 1-Memory/2-Memory Tone/Pulse Dialer | Holtek Semiconductor |
| 693341 | HT9302C | 1-Memory/2-Memory Tone/Pulse Dialer | Holtek Semiconductor |
| 693342 | HT9302D | 1-Memory/2-Memory Tone/Pulse Dialer | Holtek Semiconductor |
| 693343 | HT9302G | 1-Memory/2-Memory Tone/Pulse Dialer | Holtek Semiconductor |
| 693344 | HT9312 | (HT9313) 12 Memory Tone / Pulse Dialer | Holtek Semiconductor |
| 693345 | HT9312A | 12-Memory Tone/Pulse Dialer | Holtek Semiconductor |
| 693346 | HT9312AI | 12-Memory Tone/Pulse Dialer | Holtek Semiconductor |
| 693347 | HT9312AIT | 12-Memory Tone/Pulse Dialer | Holtek Semiconductor |
| 693348 | HT9312AL | 12-Memory Tone/Pulse Dialer | Holtek Semiconductor |
| 693349 | HT9312ALT | 12-Memory Tone/Pulse Dialer | Holtek Semiconductor |
| 693350 | HT9312AT | 12-Memory Tone/Pulse Dialer | Holtek Semiconductor |
| 693351 | HT9312B | 12-Memory Tone/Pulse Dialer | Holtek Semiconductor |
| 693352 | HT9312BI | 12-Memory Tone/Pulse Dialer | Holtek Semiconductor |
| 693353 | HT9312BIT | 12-Memory Tone/Pulse Dialer | Holtek Semiconductor |
| 693354 | HT9312BL | 12-Memory Tone/Pulse Dialer | Holtek Semiconductor |
| 693355 | HT9312BLT | 12-Memory Tone/Pulse Dialer | Holtek Semiconductor |
| 693356 | HT9312BT | 12-Memory Tone/Pulse Dialer | Holtek Semiconductor |
| 693357 | HT9312C | 12-Memory Tone/Pulse Dialer | Holtek Semiconductor |
| 693358 | HT9312CI | 12-Memory Tone/Pulse Dialer | Holtek Semiconductor |
| 693359 | HT9312CIT | 12-Memory Tone/Pulse Dialer | Holtek Semiconductor |
| 693360 | HT9312CLT | 12-Memory Tone/Pulse Dialer | Holtek Semiconductor |
