| Part Number | Description |
|---|---|
| UM82C8167 | Real-Time Clock |
| UM91215B | Tone / Pulse Dialer |
| UM3482A | Multi-Instrument Melody Generator |
| UM3483A | Multi-Instrument Melody Generator |
| UM3481A | Multi Instrument Melody Generator |
| UM8398 | Floppy Disk Controller |
| UM83C002 | RAM Buffer Controller |
| UM83C001 | Hard Disk Cont{oller |
| UM3482A | (UM3481A Series) Multi-Instrument Melody Generator |
