component
PCF8575PWR
Public Made by Adomby adom
Texas Instruments I/O Expanders, TSSOP-24. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownPCF8575PWR
Texas Instruments · I/O Expanders · TSSOP-24
PCF8575PWR from Texas Instruments, in a TSSOP-24. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | INT | output | Interrupt output. Connect to VCC through a pull-up resistor. |
| 2 | A1 | input | Address input 1. Connect directly to VCC or ground. Pull-up resistors are not needed. |
| 3 | A2 | input | Address input 2. Connect directly to VCC or ground. Pull-up resistors are not needed. |
| 4 | P00 | bidirectional | P-port input/output. Push-pull design structure. |
| 5 | P01 | bidirectional | P-port input/output. Push-pull design structure. |
| 6 | P02 | bidirectional | P-port input/output. Push-pull design structure. |
| 7 | P03 | bidirectional | P-port input/output. Push-pull design structure. |
| 8 | P04 | bidirectional | P-port input/output. Push-pull design structure. |
| 9 | P05 | bidirectional | P-port input/output. Push-pull design structure. |
| 10 | P06 | bidirectional | P-port input/output. Push-pull design structure. |
| 11 | P07 | bidirectional | P-port input/output. Push-pull design structure. |
| 12 | GND | power_in | Ground. |
| 13 | P10 | bidirectional | P-port input/output. Push-pull design structure. |
| 14 | P11 | bidirectional | P-port input/output. Push-pull design structure. |
| 15 | P12 | bidirectional | P-port input/output. Push-pull design structure. |
| 16 | P13 | bidirectional | P-port input/output. Push-pull design structure. |
| 17 | P14 | bidirectional | P-port input/output. Push-pull design structure. |
| 18 | P15 | bidirectional | P-port input/output. Push-pull design structure. |
| 19 | P16 | bidirectional | P-port input/output. Push-pull design structure. |
| 20 | P17 | bidirectional | P-port input/output. Push-pull design structure. |
| 21 | A0 | input | Address input 0. Connect directly to VCC or ground. Pull-up resistors are not needed. |
| 22 | SCL | input | Serial clock line. Connect to VCC through a pull-up resistor. |
| 23 | SDA | bidirectional | Serial data line. Connect to VCC through a pull-up resistor. |
| 24 | VCC | power_out | Supply voltage. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | TSSOP-24 |
| Category | Interface |
| Pins | 24 |
CAD (KiCad official)
- Symbol:
PCF8575PWR - Footprint:
Package_SO:TSSOP-24_4.4x7.8mm_P0.65mm - 3D model: TSSOP-24 (KiCad packages3D, STEP)
- 3D model files:
pcf8575pwr-etched.step/pcf8575pwr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);pcf8575pwr.step/pcf8575pwr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (44 pp, sha256
a3f71155a81f9da5, retrieved 2026-10-01, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-5-5(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).