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PCA9536DGKR

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Texas Instruments I/O Expanders, VSSOP-8-0.65mm. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

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Contents

README

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PCA9536DGKR

Texas Instruments · I/O Expanders · VSSOP-8-0.65mm

PCA9536DGKR from Texas Instruments, in a VSSOP-8-0.65mm. 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 P0 bidirectional P-port bit 0, push-pull general-purpose I/O. Configurable as input or output via the Configuration register; output can sink up to 25 mA (100 mA total P-port) for direct LED drive. 5-V tolerant; powers up as input with weak pullup to VCC.
2 P1 bidirectional P-port bit 1, push-pull general-purpose I/O. Configurable as input or output; sinks up to 25 mA for LED drive. 5-V tolerant; powers up as input with weak pullup to VCC.
3 P2 bidirectional P-port bit 2, push-pull general-purpose I/O. Configurable as input or output; sinks up to 25 mA for LED drive. 5-V tolerant; powers up as input with weak pullup to VCC.
4 GND power_in Device ground reference. Continuous current through GND rated up to 200 mA (absolute max).
5 P3 bidirectional P-port bit 3, push-pull general-purpose I/O. Configurable as input or output; sinks up to 25 mA for LED drive. 5-V tolerant; powers up as input with weak pullup to VCC.
6 SCL input I2C serial clock input (up to 400 kHz fast mode). Open-drain bus line - requires external pullup resistor to VCC.
7 SDA bidirectional I2C serial data bus, bidirectional open-drain. Requires external pullup resistor to VCC. 5-V tolerant input.
8 VCC power_in Supply voltage input, 2.3 V to 5.5 V. Continuous current through VCC rated up to 160 mA (absolute max). Bypass locally with a decoupling capacitor.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package VSSOP-8-0.65mm
Category Interface
Pins 8

Ordering variants

Same part, different packaging or reel option.

  • PCA9536DGKR
  • PCA9536DGKRD
  • PCA9536DGKRDR

CAD (KiCad official)

  • Symbol: PCA9536DGKR
  • Footprint: Package_SO:VSSOP-8_2.3x2mm_P0.5mm
  • 3D model: VSSOP-8-0.65mm (KiCad packages3D, STEP)
  • 3D model files: pca9536dgkr-etched.step / pca9536dgkr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); pca9536dgkr.step / pca9536dgkr.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (35 pp, sha256 bc9e7a06865817ab, 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