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TCA9534PWR

Public Made by Adom

by adom

Texas Instruments I/O Expanders, TSSOP-16. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

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Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs tca9534pwr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 5d ago
viewers pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray 1mo ago
package.json Publish 0.2.0 · Ray 1mo ago
pads.json pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray 1mo ago
page.json tca9534pwr: component.models_3d pose record per STEP (Z-up, seated z=0, pad-centre origin, identity binding) · Ray 19h ago
README.md tca9534pwr: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray 16d ago
tca9534pwr-etched.fit.json tca9534pwr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 5d ago
tca9534pwr-etched.glb tca9534pwr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 5d ago
tca9534pwr-etched.step tca9534pwr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 5d ago
tca9534pwr.glb Publish 0.1.0 · Ray 1mo ago
tca9534pwr.kicad_mod Publish 0.1.0 · Ray 1mo ago
tca9534pwr.kicad_sym Publish 0.1.0 · Ray 1mo ago
tca9534pwr.lbr rebuild the library on adom-lbr 2.32.0. The published copy was built by 2.18.0, which imported every KiCad roundrect and oval pad as a SQUARE EAGLE smd; this carries the real pad shape across (0 -> 16 rounded pads) and stops dropping geometry drawn on KiCad User.N layers. Attributes, connects, pads and the pin-1 marker are gated against decreasing and are unchanged. · Ray 1mo ago
tca9534pwr.step Publish 0.1.0 · Ray 1mo ago

TCA9534PWR

Texas Instruments · I/O Expanders · TSSOP-16

TCA9534PWR from Texas Instruments, in a TSSOP-16. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 A0 input Hardware I2C slave address input bit 0. Connect directly to VCC or GND to set the device address. Used together with A1 and A2 to allow up to eight TCA9534 devices on the same I2C bus.
2 A1 input Hardware I2C slave address input bit 1. Connect directly to VCC or GND. Combined with A0 and A2 sets the 7-bit I2C address.
3 A2 input Hardware I2C slave address input bit 2. Connect directly to VCC or GND. Combined with A0 and A1 sets the 7-bit I2C address.
4 P0 bidirectional P-port bit 0. Push-pull general-purpose I/O; configured as an input at power-on. 5-V tolerant. IOH up to -10 mA and IOL up to 25 mA per pin (subject to total device current limits).
5 P1 bidirectional P-port bit 1. Push-pull general-purpose I/O; configured as an input at power-on. 5-V tolerant.
6 P2 bidirectional P-port bit 2. Push-pull general-purpose I/O; configured as an input at power-on. 5-V tolerant.
7 P3 bidirectional P-port bit 3. Push-pull general-purpose I/O; configured as an input at power-on. 5-V tolerant.
8 GND power_in Ground reference (0 V) for the device.
9 P4 bidirectional P-port bit 4. Push-pull general-purpose I/O; configured as an input at power-on. 5-V tolerant.
10 P5 bidirectional P-port bit 5. Push-pull general-purpose I/O; configured as an input at power-on. 5-V tolerant.
11 P6 bidirectional P-port bit 6. Push-pull general-purpose I/O; configured as an input at power-on. 5-V tolerant.
12 P7 bidirectional P-port bit 7. Push-pull general-purpose I/O; configured as an input at power-on. 5-V tolerant.
13 INT output Open-drain, active-low interrupt output. Asserts when an input port pin changes state; connect to VCC through a pull-up resistor. IOL must be externally limited to 7 mA maximum.
14 SCL input I2C serial clock bus input. Open-drain; connect to VCC through a pull-up resistor. Supports 100-kHz Standard-mode and 400-kHz Fast-mode. 5-V tolerant.
15 SDA bidirectional I2C serial data bus. Open-drain bidirectional; connect to VCC through a pull-up resistor. 5-V tolerant; SDA current must be externally limited to 12 mA max.
16 VCC power_in Supply voltage input. Operating range 1.65 V to 5.5 V. Bypass to GND with a local decoupling capacitor.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package TSSOP-16
Category Interface
Pins 16

Ordering variants

Same part, different packaging or reel option.

  • TCA9534PWR
  • TCA9534PWRDW
  • TCA9534PWRDWR

CAD (KiCad official)

  • Symbol: TCA9534PWR
  • Footprint: Package_SO:TSSOP-16_4.4x5mm_P0.65mm
  • 3D model: TSSOP-16 (KiCad packages3D, STEP)
  • 3D model files: tca9534pwr-etched.step / tca9534pwr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tca9534pwr.step / tca9534pwr.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
tca9534pwr.step 205 KB You want the bare part, or you mark your own boards.
tca9534pwr-etched.step 2.5 MB You want the part with TCA9534PWR already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 616 faces against 255 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

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

  • Datasheet: Texas Instruments datasheet (42 pp, sha256 797c1fc96502df7c, retrieved 2026-08-17, tier: manufacturer)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF