Back to browse
PCF8574TS
8-bit I/O Expander, I2C interface, interrupt output, fixed address bits 0b0100xxx, SSOP-20
Schematic Symbol
Pin Configuration (20 pins)
| Pin | Name | Type |
|---|---|---|
| 1 | ~{INT} | open_collector |
| 2 | SCL | input |
| 3 | NC | no_connect |
| 4 | SDA | bidirectional |
| 5 | VDD | power_in |
| 6 | A0 | input |
| 7 | A1 | input |
| 8 | NC | no_connect |
| 9 | A2 | input |
| 10 | P0 | bidirectional |
| 11 | P1 | bidirectional |
| 12 | P2 | bidirectional |
| 13 | NC | no_connect |
| 14 | P3 | bidirectional |
| 15 | VSS | power_in |
| 16 | P4 | bidirectional |
| 17 | P5 | bidirectional |
| 18 | NC | no_connect |
| 19 | P6 | bidirectional |
| 20 | P7 | bidirectional |
Footprint
ConfirmedPackage_SO/SSOP-20_4.4x6.5mm_P0.65mm
Pad Layout
Pads (20)
| Number | Type |
|---|---|
| 1 | smd |
| 2 | smd |
| 3 | smd |
| 4 | smd |
| 5 | smd |
| 6 | smd |
| 7 | smd |
| 8 | smd |
| 9 | smd |
| 10 | smd |
| 11 | smd |
| 12 | smd |
| 13 | smd |
| 14 | smd |
| 15 | smd |
| 16 | smd |
| 17 | smd |
| 18 | smd |
| 19 | smd |
| 20 | smd |