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Z84C20
Parallel I/O, CMOS, DIP-40
Schematic Symbol
Pin Configuration (40 pins)
| Pin | Name | Type |
|---|---|---|
| 1 | D2 | bidirectional |
| 2 | D7 | bidirectional |
| 3 | D6 | bidirectional |
| 4 | ~{CE} | input |
| 5 | C/~{D} | input |
| 6 | B/~{A} | input |
| 7 | PA7 | bidirectional |
| 8 | PA6 | bidirectional |
| 9 | PA5 | bidirectional |
| 10 | PA4 | bidirectional |
| 11 | GND | power_in |
| 12 | PA3 | bidirectional |
| 13 | PA2 | bidirectional |
| 14 | PA1 | bidirectional |
| 15 | PA0 | bidirectional |
| 16 | ~{ASTB} | input |
| 17 | ~{BSTB} | input |
| 18 | ARDY | output |
| 19 | D0 | bidirectional |
| 20 | D1 | bidirectional |
| 21 | BRDY | output |
| 22 | IEO | output |
| 23 | ~{INT} | open_collector |
| 24 | IEI | input |
| 25 | CLK | input |
| 26 | VCC | power_in |
| 27 | PB0 | bidirectional |
| 28 | PB1 | bidirectional |
| 29 | PB2 | bidirectional |
| 30 | PB3 | bidirectional |
| 31 | PB4 | bidirectional |
| 32 | PB5 | bidirectional |
| 33 | PB6 | bidirectional |
| 34 | PB7 | bidirectional |
| 35 | ~{RD} | input |
| 36 | ~{IORQ} | input |
| 37 | ~{M1} | input |
| 38 | D5 | bidirectional |
| 39 | D4 | bidirectional |
| 40 | D3 | bidirectional |
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 |
