component
TCA9543ADR
Public Made by Adomby adom
Texas Instruments Signal Switches, Multiplexers, Decoders, SOIC-14. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownTCA9543ADR
Texas Instruments · Signal Switches, Multiplexers, Decoders · SOIC-14
TCA9543ADR from Texas Instruments, in a SOIC-14. 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 | A0 | input | Address input 0; connect to VCC or ground to set device slave address. |
| 2 | A1 | input | Address input 1; connect to VCC or ground to set device slave address. |
| 3 | RESET | input | Active-low reset input; resets I2C state machine and deselects both channels when low. |
| 4 | INT0 | input | Active-low interrupt input 0 from channel 0 slaves; pull-up resistor to VDPU0. |
| 5 | SD0 | bidirectional | Serial data 0 for channel 0 I2C bus; pull-up resistor to VDPU0. |
| 6 | SC0 | bidirectional | Serial clock 0 for channel 0 I2C bus; pull-up resistor to VDPU0. |
| 7 | GND | power_in | Ground |
| 8 | INT1 | input | Active-low interrupt input 1 from channel 1 slaves; pull-up resistor to VDPU1. |
| 9 | SD1 | bidirectional | Serial data 1 for channel 1 I2C bus; pull-up resistor to VDPU1. |
| 10 | SC1 | bidirectional | Serial clock 1 for channel 1 I2C bus; pull-up resistor to VDPU1. |
| 11 | INT | output | Active-low interrupt output combining INT0 and INT1; pull-up resistor to VDPUM. |
| 12 | SCL | bidirectional | Serial clock line for upstream I2C master; pull-up resistor to VDPUM. |
| 13 | SDA | bidirectional | Serial data line for upstream I2C master; pull-up resistor to VDPUM. |
| 14 | VCC | power_in | Supply power voltage with operating range 1.65 V to 5.5 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-14 |
| Category | Logic |
| Pins | 14 |
CAD (KiCad official)
- Symbol:
TCA9543ADR - Footprint:
Package_SO:SOIC-14_3.9x8.7mm_P1.27mm - 3D model: SOIC-14 (KiCad packages3D, STEP)
- 3D model files:
tca9543adr-etched.step/tca9543adr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tca9543adr.step/tca9543adr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (34 pp, sha256
dfa2c184725031a8, retrieved 2026-10-03, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-4-5-20251001(text), consensusclaude-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).