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FD1771
Floppy disk controller, DIP-40
Schematic Symbol
Pin Configuration (39 pins)
| Pin | Name | Type |
|---|---|---|
| 1 | VBB | power_in |
| 2 | ~{WE} | input |
| 3 | ~{CS} | input |
| 4 | ~{RE} | input |
| 5 | A0 | input |
| 6 | A1 | input |
| 7 | DI0 | tri_state |
| 8 | DI1 | tri_state |
| 9 | DI2 | tri_state |
| 10 | DI3 | tri_state |
| 11 | DI4 | tri_state |
| 12 | DI5 | tri_state |
| 13 | DI6 | tri_state |
| 14 | DI7 | tri_state |
| 15 | ~{PH1}/STEP | output |
| 16 | ~{PH2}/DIRC | output |
| 17 | PH3 | output |
| 18 | ~{3PM} | input |
| 19 | ~{MR} | input |
| 20 | GND | power_in |
| 21 | VCC | power_in |
| 22 | ~{TEST} | input |
| 23 | HLT | input |
| 24 | CLK | input |
| 25 | ~{XTDS} | input |
| 26 | FDCLK | input |
| 27 | FDDATA | input |
| 29 | TG43 | output |
| 30 | WG | output |
| 31 | WD | output |
| 32 | READY | input |
| 33 | ~{WF} | input |
| 34 | ~{TR00} | input |
| 35 | ~{IP} | input |
| 36 | ~{WPRT} | input |
| 37 | ~{DINT} | input |
| 38 | DRQ | output |
| 39 | INTRQ | input |
| 40 | VDD | power_in |
Footprint
ConfirmedPackage_DIP/DIP-40_W15.24mm
Pad Layout
1
2
3
4
5
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10
11
12
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17
18
19
20
21
22
23
24
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27
28
29
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31
32
33
34
35
36
37
38
39
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 |