| IC number | Manufacturer | Documentation |
|---|---|---|
| i387DX (80387DX) | Intel | Datasheet (PDF) |
| IC number | Package |
|---|---|
| A80387DX | 68-pin Ceramic PGA 11 × 11 |
| Device | Position | Package |
|---|---|---|
| PC60-III | U83 (not installed) | PGA |
| Pin | Type | Name |
|---|---|---|
| A2 | I/O | D9 |
| A3..A4 | I/O | D11..D12 |
| A5 | I/O | D14 |
| A6 | Power | VCC |
| A7 | I/O | D16 |
| A8 | I/O | D18 |
| A9 | Power | VCC |
| A10 | I/O | D21 |
| B1 | I/O | D8 |
| B2 | Power | VSS |
| B3 | I/O | D10 |
| B4 | Power | VCC |
| B5 | I/O | D13 |
| B6 | I/O | D15 |
| B7 | Power | VSS |
| B8 | I/O | D17 |
| B9..B10 | I/O | D19..D20 |
| B11 | I/O | D22 |
| C1..C2 | I/O | D7..D6 |
| C10 | I/O | D23 |
| C11 | Power | VSS |
| D1..D2 | I/O | D5..D4 |
| D10..D11 | I/O | D24..D25 |
| E1 | Power | VCC |
| E2 | Power | VSS |
| E10..E11 | I/O | D26..D27 |
| F1 | Power | VCC |
| F2 | Input | VSS |
| F10 | Power | VCC |
| F11 | Power | VSS |
| G1..G2 | I/O | D3..D2 |
| G10..G11 | Input | D28..D29 |
| H1..H2 | Input | D1..D0 |
| H10..H11 | I/O | D30..D31 |
| J1 | Power | VSS |
| J2 | Power | VCC |
| J10 | Power | VSS |
| J11 | Input | CKM |
| K1 | Output | PEREQ |
| K2 | Output | BUSY# |
| K3 | Input | TIE HIGH |
| K4 | Input | W/R# |
| K5 | Power | VCC |
| K6 | Input | NPS2 |
| K7 | Input | ADS# |
| K8 | Input | READY# |
| K9 | N/C | N/C |
| K10 | Input | CPUCLK2 |
| K11 | Input | NUMCLK2 |
| L2 | Output | ERROR# |
| L3 | Output | READYO# |
| L4 | Input | STEN |
| L5 | Power | VSS |
| L6 | Input | NPS1# |
| L7 | Power | VCC |
| L8 | Input | CMD0# |
| L9 | Input | TIE HIGH |
| L10 | Input | RESETIN |
Copyright © 2004 Ronald van Dijk - All rights reserved
Last update: 20 September 2004