Symbol
28 pins
- Units
- 1
- Kind
- part
- Grid
- on 1.27 mm
- Extends
- 8259
Footprint
28 pads
- Library
- Package_DIP
- Mount
- through_hole
- Courtyard
- 17.34 × 36.08 mm
- Link
- exact
- Footprint page
- Open →
3D model
STEPPackage_DIP_DIP-28_W15.24mm
15.49 × 35.56 × 6.98 mm
869 KB STEP
- Library
- Package_DIP_DIP-28
- Link
- exact
- Model page
- Open →
Pins and pads
Every pin on the symbol has a pad on the footprint.
| Pin | Name | Type | Pad |
|---|---|---|---|
| 1 | ~{CS} | input | 1 |
| 2 | ~{WR} | input | 2 |
| 3 | ~{RD} | input | 3 |
| 4 | D7 | bidirectional | 4 |
| 5 | D6 | bidirectional | 5 |
| 6 | D5 | bidirectional | 6 |
| 7 | D4 | bidirectional | 7 |
| 8 | D3 | bidirectional | 8 |
| 9 | D2 | bidirectional | 9 |
| 10 | D1 | bidirectional | 10 |
| 11 | D0 | bidirectional | 11 |
| 12 | CAS0 | input | 12 |
| 13 | CAS1 | output | 13 |
| 14 | GND | power_in | 14 |
| 15 | CAS2 | output | 15 |
| 16 | ~{SP}/~{EN} | bidirectional | 16 |
| 17 | INT | output | 17 |
| 18 | IR0 | input | 18 |
| 19 | IR1 | input | 19 |
| 20 | IR2 | input | 20 |
| 21 | IR3 | input | 21 |
| 22 | IR4 | input | 22 |
| 23 | IR5 | input | 23 |
| 24 | IR6 | input | 24 |
| 25 | IR7 | input | 25 |
| 26 | ~{INTA} | input | 26 |
| 27 | A0 | input | 27 |
| 28 | VCC | power_in | 28 |
On real boards
20+ designs use this part
3 placed it by name in a schematic; 17 carry its footprint on a board, and no other part in the catalog uses that footprint. Largest first.
- HC4 BOARD4by footprint
- Olivetti M20 L1 Schematicsby footprint
- DigiTrainerby footprint
- Amiga N2630 MC68882 PLCCby footprint
- Electronics BOARD8by footprint
- Folk CPC464 2MINIby footprint
- All Spectrum Clonesby footprint
- All Spectrum Clones BOARD2by footprint
- 8086 Systemby footprint
- PLC 14500by footprint
- Dragon CPU UK Rev 3 Mainboardby footprint
- CGA Reduxby footprint
- 6809PC ISAby footprint
- 6800by footprint
- TELESTRAT IIby footprint
- Folk TIM011B BOARD11by footprint
- Karabas 128 Pcbby footprint
- Intel8088OnBreadboardby name
- Intel8088OnBreadboardby name
- CompaqPortableIIIby name
Provenance
- Source
- kicad-symbols
- Credit
- KiCad Libraries Contributors
- Licence
- CC-BY-SA-4.0-with-KiCad-exception
- Link method
- exact
- Cross-check
- passed