PCF8574T
Interface_Expansion
8-bit I/O Expander, I2C interface, interrupt output, fixed address bits 0b0100xxx, SOIC-16
Symbol
16 pins
- Units
- 1
- Kind
- part
- Grid
- on 1.27 mm
- Extends
- TCA9534
Footprint
16 pads
- Library
- Package_SO
- Mount
- smd
- Courtyard
- 11.86 × 10.8 mm
- Link
- exact
- Footprint page
- Open →
3D model
STEPPackage_SO_SOIC-16W_7.5x10.3mm_P1.27mm
10.30 × 10.30 × 2.75 mm
218 KB STEP
- Library
- Package_SO_SOIC-16W_7.5x10.3mm
- Link
- exact
- Model page
- Open →
Pins and pads
Every pin on the symbol has a pad on the footprint.
| Pin | Name | Type | Pad |
|---|---|---|---|
| 1 | A0 | input | 1 |
| 2 | A1 | input | 2 |
| 3 | A2 | input | 3 |
| 4 | P0 | bidirectional | 4 |
| 5 | P1 | bidirectional | 5 |
| 6 | P2 | bidirectional | 6 |
| 7 | P3 | bidirectional | 7 |
| 8 | GND | power_in | 8 |
| 9 | P4 | bidirectional | 9 |
| 10 | P5 | bidirectional | 10 |
| 11 | P6 | bidirectional | 11 |
| 12 | P7 | bidirectional | 12 |
| 13 | ~{INT} | open_collector | 13 |
| 14 | SCL | input | 14 |
| 15 | SDA | bidirectional | 15 |
| 16 | VDD | power_in | 16 |
On real boards
20+ designs use this part
4 placed it by name in a schematic; 16 carry its footprint on a board, and no other part in the catalog uses that footprint. Largest first.
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Provenance
- Source
- kicad-symbols
- Credit
- KiCad Libraries Contributors
- Licence
- CC-BY-SA-4.0-with-KiCad-exception
- Link method
- exact
- Cross-check
- passed