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PCA9575PW1

Public Made by Adom

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NXP Semicon I/O Expanders, TSSOP-24. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentinterface icspca9575pw1factory-2.0.0extractor-text

Verified PCA9575PW1

by Ray · last 2 Nov 2026 · 1 record · files match
SymbolFootprint3D modelPins

Verification log 1 record

2 Nov 2026RayPublished by the parts factory: tier mfr, 24 pinsfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: PCA9575PW1 · TSSOP-24 · 24 pins
  • ✓copper: 24 copper pads, none touching another net
  • ✓datasheet: all 24 pin names found in the 44-page datasheet
  • •distributor (warn): no ['digikey', 'mouser'] number
  • ✓family: TSSOP-24_4.4x7.8mm_P0.65mm
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-1s3s3gpe/x.lbr is a valid EAGLE .lbr with complete deviceset
  • ✓license: CC-BY-SA-4.0
  • ✓models_3d: 2 records
  • •package_fit (skip): no component.package_dims on the page: the model is unchecked against the datasheet drawing
  • ✓pads: 24 pins = 24 pads
  • ✓pose: 2 STEP(s) Z-up, seated, centred
  • ✓symbol: 24 pins agree
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ pca9575pw1.kicad_sym✓ pca9575pw1.kicad_mod✓ pca9575pw1.step
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Contents

README

markdown

PCA9575PW1

NXP Semicon · I/O Expanders · TSSOP-24

PCA9575PW1 from NXP Semicon, 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 VDD power_in Core logic supply voltage, specified from 1.1 V to 3.6 V.
2 RESET input Active LOW reset input that returns the device to its power-up default state.
3 P0_0 bidirectional I/O port 0 input/output 0, programmable as input or totem-pole output with 1 mA source and 3 mA sink.
4 P0_1 bidirectional I/O port 0 input/output 1, programmable as input or totem-pole output with 1 mA source and 3 mA sink.
5 P0_2 bidirectional I/O port 0 input/output 2, programmable as input or totem-pole output with 1 mA source and 3 mA sink.
6 P0_3 bidirectional I/O port 0 input/output 3, programmable as input or totem-pole output with 1 mA source and 3 mA sink.
7 VDD(IO)0 power_in I/O supply voltage for bank 0, specified from 1.1 V to 3.6 V.
8 P0_4 bidirectional I/O port 0 input/output 0 of bank 0 (pin P0_4), programmable as input or totem-pole output with 1 mA source and 3 mA sink.
9 P0_5 bidirectional I/O port 0 input/output 1, programmable as input or totem-pole output with 1 mA source and 3 mA sink.
10 P0_6 bidirectional I/O port 0 input/output 2, programmable as input or totem-pole output with 1 mA source and 3 mA sink.
11 P0_7 bidirectional I/O port 0 input/output 3, programmable as input or totem-pole output with 1 mA source and 3 mA sink.
12 INT output Interrupt output, open-drain and active LOW, asserted on input changes for unmasked ports.
13 VSS power_in Ground supply; ground reference for the device.
14 P1_7 bidirectional I/O port 1 input/output 4, programmable as input or totem-pole output with 1 mA source and 3 mA sink.
15 P1_6 bidirectional I/O port 1 input/output 5, programmable as input or totem-pole output with 1 mA source and 3 mA sink.
16 P1_5 bidirectional I/O port 1 input/output 6, programmable as input or totem-pole output with 1 mA source and 3 mA sink.
17 P1_4 bidirectional I/O port 1 input/output 7, programmable as input or totem-pole output with 1 mA source and 3 mA sink.
18 VDD(IO)1 power_in I/O supply voltage for bank 1, specified from 1.1 V to 3.6 V.
19 P1_3 bidirectional I/O port 1 input/output 3, programmable as input or totem-pole output with 1 mA source and 3 mA sink.
20 P1_2 bidirectional I/O port 1 input/output 2, programmable as input or totem-pole output with 1 mA source and 3 mA sink.
21 P1_1 bidirectional I/O port 1 input/output 1, programmable as input or totem-pole output with 1 mA source and 3 mA sink.
22 P1_0 bidirectional I/O port 1 input/output 0, programmable as input or totem-pole output with 1 mA source and 3 mA sink.
23 SDA bidirectional I2C-bus serial data line, open-drain bidirectional I/O.
24 SCL input I2C-bus serial clock line, input.

Key specifications

Parameter Value
Manufacturer NXP Semicon
Package TSSOP-24
Category Interface ICs
Pins 24

CAD (KiCad official)

  • Symbol: PCA9575PW1
  • Footprint: Package_SO:TSSOP-24_4.4x7.8mm_P0.65mm
  • 3D model: TSSOP-24 (KiCad packages3D, STEP)
  • 3D model files: pca9575pw1-etched.step / pca9575pw1-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); pca9575pw1.step / pca9575pw1.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: NXP Semicon datasheet (44 pp, sha256 faf471eb14fc6c0d, retrieved 2026-11-02, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-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).

Datasheet PDF