Cheyenne (bootleg)
From Citylan
| dumper | f205v |
| date | 17/03/2005 |
| emulator | |
| dev |
| name | 59 |
| description | Cheyenne (bootleg) |
| year | 1984 |
| manufacturer |
Technical references
CPUs
| QTY | Type | clock | position | function |
|---|---|---|---|---|
| 1x | HD68B09EP | lower board | 8-bit Microprocessor - main | |
| 1x | MC6809P | upper board | 8-bit Microprocessor - main | |
| 1x | MC6844P | upper board | Direct Memory Access Controller (DMAC) | |
| 1x | TDA2003 | upper board | Audio Amplifier - sound | |
| 1x | oscillator | 26.540 | lower board |
ROMs
| QTY | Type | position | status |
|---|---|---|---|
| 1x | M2764A | 9 upper board | dumped |
| 5x | M27256 | 1,3,5,6,8 lower board | dumped |
| 1x | TMS27256 | 2 lower board | dumped |
| 3x | M27256 | 11,12,13 upper board | dumped |
| 1x | TMS27256 | 14 upper board | dumped |
| 1x | M27512B | 4 lower board | dumped |
| 1x | KM2816A | 7 lower board | dumped |
| 8x | Dm74S287AN | 2,4,5,6,7,8,9,12 lower board | not dumped yet |
| 1x | Dm74S288AN | 3 lower board | not dumped yet |
RAMs
| QTY | Type | position |
|---|---|---|
| 8x | NMC2148HJ | lower board |
| 10x | TMM2015BP-90 | lower board |
| 4x | HM6264LP-12 | lower board |
| 3x | NMC2148HJ | upper board |
| 1x | km6816al-15 | upper board |
PLDs
| QTY | Type | position | status |
|---|
Others
1x 22x2 edge connector (upper board)
1x 12 legs connector (upper board)
1x 4 legs connector (upper board)
1x 50 pins flat cable connector from upper board to lower board
1x 24 pins flat cable connector from upper board to lower board
1x trimmer (volume) (upper board)
1x 8x2 switches DIP (SW1 upper board)
1x 4x2 switches DIP (SW2 lower board)
1x 6 legs connector (lower board)
Notes
there is NO rom n°10, on the board there is an empty place mid way from 9 to 11, but it's completely empty, there is NO socket even!!!
made in Italy?
EPROM 9 contains the following string: COPYRIGHT (C) 1984 EXIDY INC M VON STRIVER V TOLOMEIK NICHOLSON
Files
-
PCB component side
-
PCB solder side
-
ROMs
59
