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PCA9535RGER

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Texas Instruments I/O Expanders, HVQFN-24-EP(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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3D Model

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Symbol & Footprint

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Datasheet

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Contents

README

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PCA9535RGER

Texas Instruments · I/O Expanders · HVQFN-24-EP(4x4)

PCA9535RGER from Texas Instruments, in a HVQFN-24-EP(4x4). 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 P00 bidirectional Input/output port 0 with push-pull output structure; accepts input voltage range 0.7×VCC to 5.5V.
2 P01 bidirectional Input/output port 1 with push-pull output structure; accepts input voltage range 0.7×VCC to 5.5V.
3 P02 bidirectional Input/output port 2 with push-pull output structure; accepts input voltage range 0.7×VCC to 5.5V.
4 P03 bidirectional Input/output port 3 with push-pull output structure; accepts input voltage range 0.7×VCC to 5.5V.
5 P04 bidirectional Input/output port 4 with push-pull output structure; accepts input voltage range 0.7×VCC to 5.5V.
6 P05 bidirectional Input/output port 5 with push-pull output structure; accepts input voltage range 0.7×VCC to 5.5V.
7 P06 bidirectional Input/output port 6 with push-pull output structure; accepts input voltage range 0.7×VCC to 5.5V.
8 P07 bidirectional Input/output port 7 with push-pull output structure; accepts input voltage range 0.7×VCC to 5.5V.
9 GND power_in Ground reference.
10 P10 bidirectional Input/output port 10 with push-pull output structure; accepts input voltage range 0.7×VCC to 5.5V.
11 P11 bidirectional Input/output port 11 with push-pull output structure; accepts input voltage range 0.7×VCC to 5.5V.
12 P12 bidirectional Input/output port 12 with push-pull output structure; accepts input voltage range 0.7×VCC to 5.5V.
13 P13 bidirectional Input/output port 13 with push-pull output structure; accepts input voltage range 0.7×VCC to 5.5V.
14 P14 bidirectional Input/output port 14 with push-pull output structure; accepts input voltage range 0.7×VCC to 5.5V.
15 P15 bidirectional Input/output port 15 with push-pull output structure; accepts input voltage range 0.7×VCC to 5.5V.
16 P16 bidirectional Input/output port 16 with push-pull output structure; accepts input voltage range 0.7×VCC to 5.5V.
17 P17 bidirectional Input/output port 17 with push-pull output structure; accepts input voltage range 0.7×VCC to 5.5V.
18 A0 input Address input pin; connect directly to VCC or ground to select device I2C address.
19 SCL bidirectional Serial clock bus for I2C interface; 0.7×VCC to VCC high level, -0.5 to 0.3×VCC low level; connect to VCC through pullup resistor.
20 SDA bidirectional Serial data bus for I2C interface; 0.7×VCC to VCC high level, -0.5 to 0.3×VCC low level; connect to VCC through pullup resistor.
21 VCC power_in Supply voltage for 2.3V to 5.5V operation.
22 INT output Interrupt output with open-drain structure; asserted low when input state changes; connect to VCC through pullup resistor.
23 A1 input Address input pin; connect directly to VCC or ground to select device I2C address.
24 A2 input Address input pin; connect directly to VCC or ground to select device I2C address.
25 EP passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package HVQFN-24-EP(4x4)
Category Interface
Pins 25

CAD (KiCad official)

  • Symbol: PCA9535RGER
  • Footprint: Package_DFN_QFN:HVQFN-24-1EP_4x4mm_P0.5mm_EP2.1x2.1mm
  • 3D model: HVQFN-24-EP(4x4) (KiCad packages3D, STEP)
  • 3D model files: pca9535rger-etched.step / pca9535rger-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); pca9535rger.step / pca9535rger.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (51 pp, sha256 894bfd3e3f5671e8, retrieved 2026-10-01, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-4-5-20251001 (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