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Contents

README

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TCA9511ADGKR

Texas Instruments · Interface - Specialized · VSSOP-8-0.65mm

TCA9511ADGKR from Texas Instruments, in a VSSOP-8-0.65mm. 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 EN input Active-high chip enable; high for normal operation with precharge and rise-time acceleration, low for shutdown mode with bus isolation and disabled accelerators.
2 SCLOUT bidirectional Serial clock output connected to card-side SCL bus; open-drain I2C buffer line supporting bidirectional buffering and clock stretching.
3 SCLIN bidirectional Serial clock input from backplane-side SCL bus; open-drain I2C buffer line supporting bidirectional buffering and clock stretching.
4 GND power_in Supply ground reference.
5 READY output Open-drain connection status flag pulled low when EN low or start-up incomplete, released high by 10 kΩ external pull-up when EN high and start-up complete.
6 SDAIN bidirectional Serial data input from backplane-side SDA bus; open-drain I2C buffer line supporting bidirectional buffering and clock stretching.
7 SDAOUT bidirectional Serial data output connected to card-side SDA bus; open-drain I2C buffer line supporting bidirectional buffering and clock stretching.
8 VCC power_in Supply power input with range of 2.3 V to 5.5 V; bypass with 0.1 μF capacitor placed close to pin for best results.

Key specifications

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

CAD (KiCad official)

  • Symbol: TCA9511ADGKR
  • Footprint: Package_SO:VSSOP-8_2.3x2mm_P0.5mm
  • 3D model: VSSOP-8-0.65mm (KiCad packages3D, STEP)
  • 3D model files: tca9511adgkr-etched.step / tca9511adgkr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tca9511adgkr.step / tca9511adgkr.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (26 pp, sha256 12366516adfa2599, retrieved 2026-09-26, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.2, primary claude-haiku-4-5-20251001 (text), consensus claude-sonnet-4-6 (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