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WD2797
Floppy disk controller, DIP-40
Schematic Symbol
Pin Configuration (40 pins)
| Pin | Name | Type |
|---|---|---|
| 1 | ENP | input |
| 2 | ~{WE} | input |
| 3 | ~{CS} | input |
| 4 | ~{RE} | input |
| 5 | A0 | input |
| 6 | A1 | input |
| 7 | DAL0 | tri_state |
| 8 | DAL1 | tri_state |
| 9 | DAL2 | tri_state |
| 10 | DAL3 | tri_state |
| 11 | DAL4 | tri_state |
| 12 | DAL5 | tri_state |
| 13 | DAL6 | tri_state |
| 14 | DAL7 | tri_state |
| 15 | STEP | output |
| 16 | DIRC | output |
| 17 | ~{5}/8 | input |
| 18 | RPW | input |
| 19 | ~{MR} | input |
| 20 | VSS | power_in |
| 21 | VCC | power_in |
| 22 | ~{TEST} | input |
| 23 | PUMP | output |
| 24 | CLK | input |
| 25 | SSO | output |
| 26 | VCO | input |
| 27 | ~{RAW_READ} | input |
| 28 | HLD | output |
| 29 | TG43 | output |
| 30 | WG | output |
| 31 | WD | output |
| 32 | READY | input |
| 33 | WPW | input |
| 34 | ~{TR00} | input |
| 35 | ~{IP} | input |
| 36 | ~{WPRT} | input |
| 37 | ~{DDEN} | input |
| 38 | DRQ | output |
| 39 | INTRQ | output |
| 40 | HLT | input |
Footprint
ConfirmedPackage_DIP/DIP-40_W15.24mm
Pad Layout
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40
Pads (40)
| Number | Type |
|---|---|
| 1 | thru hole |
| 2 | thru hole |
| 3 | thru hole |
| 4 | thru hole |
| 5 | thru hole |
| 6 | thru hole |
| 7 | thru hole |
| 8 | thru hole |
| 9 | thru hole |
| 10 | thru hole |
| 11 | thru hole |
| 12 | thru hole |
| 13 | thru hole |
| 14 | thru hole |
| 15 | thru hole |
| 16 | thru hole |
| 17 | thru hole |
| 18 | thru hole |
| 19 | thru hole |
| 20 | thru hole |
| 21 | thru hole |
| 22 | thru hole |
| 23 | thru hole |
| 24 | thru hole |
| 25 | thru hole |
| 26 | thru hole |
| 27 | thru hole |
| 28 | thru hole |
| 29 | thru hole |
| 30 | thru hole |
| 31 | thru hole |
| 32 | thru hole |
| 33 | thru hole |
| 34 | thru hole |
| 35 | thru hole |
| 36 | thru hole |
| 37 | thru hole |
| 38 | thru hole |
| 39 | thru hole |
| 40 | thru hole |