Unknown - 15
From Citylan
| dumper | f205v |
| date | 15/10/2006 |
| emulator | |
| dev |
| name | '481 |
| description | Unknown - 15 |
| year | 198x |
| manufacturer |
Technical references
CPUs
| QTY | Type | clock | position | function |
|---|---|---|---|---|
| 1x | HD68A09EP | 8-bit Microprocessor - main | ||
| 2x | MC6821P | Peripheral Interface Adapter | ||
| 1x | AM8279PC | Programmable Keyboard / Display Interface | ||
| 2x | AY-3-8910 | Programmable Sound Generator - sound | ||
| 1x | LM3900 | Quad Operational Amplifier - sound | ||
| 1x | oscillator | 6MHz |
ROMs
| QTY | Type | position | status |
|---|---|---|---|
| 1x | HN482764G | 1 | dumped |
| 1x | HN482764G | 2 | broken, not dumped |
RAMs
| QTY | Type | position |
|---|---|---|
| 1x | HM6116LP-4 |
PLDs
| QTY | Type | position | status |
|---|---|---|---|
| 0x |
Others
3x 18x2 edge connector
1x trimmer (volume)
2x 8 DIP switches banks
Notes
PCB is marked: "VAOI"
Files
-
PCB component side
-
ROMs
481
