Commodore B128 Service Manual IC Crossreference
This serves as my index when referencing an IC location on the motherboard with the page in the service manual.
| Location | Page | Description |
|---|---|---|
| U1 | 11 | MOS 6526A |
| U2 | 11 | MOS 6525A |
| U3 | 11 | 75160A |
| U4 | 11 | 75161A |
| U5 | 1 | 74S20 |
| U6 | 1 | 74S374 |
| U7 | 8 | MC 68B45 |
| U8 | 9 | 74LS245 |
| U9 | 1 | MOS 6509 |
| U10 | 12 | MOS 6581 |
| U11 | 1 | 74LS245 |
| U12 | 1 | 74LS245 |
| U13 | 12, 13 | 7486 |
| U14 | 13 | 7405 |
| U15 | 10 | MOS 6551A |
| U16 | 10 | MC 1489 |
| U17 | 10 | MC 1488 |
| U18 | 7 | 82S100 PLA |
| U19 | 8 | 74S74 |
| U20 | 8, 12 | 74S86 |
| U21 | 8 | 74LS175 |
| U22 | 1 | 74S02 |
| U23 | 1, 7, 8 | 74LS08 |
| U24 | 8 | 74166 |
| U25 | 6 | 2332 |
| U26 | 9 | 2016 |
| U27 | 9 | 74LS374 |
| U28 | 10 | MOS 6525A |
| U29 | 5 | MOS 4364-2 |
| U30 | 5 | MOS 4364-2 |
| U31 | 5 | MOS 4364-2 |
| U32 | 5 | MOS 4364-2 |
| U33 | 5 | MOS 4364-2 |
| U34 | 5 | MOS 4364-2 |
| U35 | 5 | MOS 4364-2 |
| U36 | 5 | MOS 4364-2 |
| U37 | 2, 7, 8 | 74LS14 |
| U38 | 7 | 74S138 |
| U39 | 7 | 74LS139 |
| U40 | 7 | 74S138 |
| U41 | 1 | 7428 |
| U42 | 9 | 74LS157 |
| U43 | 9 | 74LS157 |
| U44 | 9 | 74LS157 |
| U45 | 5 | MOS 4364-2 |
| U46 | 5 | MOS 4364-2 |
| U47 | 5 | MOS 4364-2 |
| U48 | 5 | MOS 4364-2 |
| U49 | 5 | MOS 4364-2 |
| U50 | 5 | MOS 4364-2 |
| U51 | 5 | MOS 4364-2 |
| U52 | 5 | MOS 4364-2 |
| U53 | 12 | 74S04 |
| U54 | 2, 3 | 74S32 |
| U55 | 3, 8 | 74LS74 |
| U56 | 2, 3, 8 | 74LS00 |
| U57 | 1, 2 | 74S74 |
| U58 | 6 | 2016 |
| U59 | 6 | 2364 |
| U60 | 6 | 2364 |
| U61 | 6 | 2364 |
| U62 | 1 | 74S241 |
| U63 | 1 | 74S241 |
| U64 | 4 | MOS 4364-2 |
| U65 | 4 | MOS 4364-2 |
| U66 | 4 | MOS 4364-2 |
| U67 | 4 | MOS 4364-2 |
| U68 | 4 | MOS 4364-2 |
| U69 | 4 | MOS 4364-2 |
| U70 | 4 | MOS 4364-2 |
| U71 | 4 | MOS 4364-2 |
| U72 | 4 | MOS 4364-2 |
| U73 | 4 | MOS 4364-2 |
| U74 | 4 | MOS 4364-2 |
| U75 | 4 | MOS 4364-2 |
| U76 | 4 | MOS 4364-2 |
| U77 | 4 | MOS 4364-2 |
| U78 | 4 | MOS 4364-2 |
| U79 | 4 | MOS 4364-2 |
| U80 | 2 | 74LS30 |
| U81 | 2 | 74S299 |
| U82 | 2 | 74S74 |
| U83 | 2 | 74S74 |
| U84 | 2 | 74S74 |
| U85 | 1, 2 | 74S08 |
| U86 | 2 | 74LS74 |
| U87 | 2, 6, 9 | 74S32 |
| U88 | 3 | 74S08 |
| U89 | 3 | 74S02 |
| U90 | 2, 3 | 74S02 |
| U91 | 3 | 74LS383 |
| U92 | 3 | 74S153 |
| U93 | 3 | 74S153 |
| U94 | 3 | 74S153 |
| U95 | 3 | 74S153 |
| U96 | 1, 3 | 74S05 |
| U97 | 1 | NE556 |