310396
- PCB Number 310396.
- Schematic Number 310637.
- Drive controller used in the C128D (plastic case).
- Compatible with the 1571 Drive (uses the same ROM).
Integrated Circuits
| PCB Identifier | Chip Number | Remarks | Memory Location/bit |
|---|---|---|---|
| U1 | 6502 | ||
| U2 | 23256 | ROM | $8000-$FFFF |
| U3 | 2016 | ||
| U4 | 6522 | VIA2 (Drive Logic) | $1C00-$1C0F |
| U5 | MN50005XCA 64H157 | ||
| U6 | 251828-01 64H156 | ||
| U7 | R/W_HYBRID | ||
| U8 | 7406 | ||
| U9 | 6522 | VIA1 (Serial port) | $1800-$180F |
| U10 | 74LS74 | ||
| U11 | WD1770 VL1772 | Floppy Controller | $2000-$2003 |
| U12 | 74F32 | ||
| U13 | 74LS266 | ||
| U14 | 7407 | ||
| U15 | 74LS14 | ||
| U16 | 7406 | ||
| U17 | 74LS14 | ||
| U18 | 74LS175 | ||
| U19 | 74LS241 | ||
| U20 | 6526A 8520 | CIA (Serial port) | $4000-$400F |
| U22 | 74LS123 |
Schematics
[1] image source www.ntrautanen.fi