component
TCA9543APWR
Public Made by Adomby adom
Texas Instruments Signal Switches, Multiplexers, Decoders, TSSOP-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
markdownTCA9543APWR
Texas Instruments · Signal Switches, Multiplexers, Decoders · TSSOP-14
TCA9543APWR from Texas Instruments, in a TSSOP-14. 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 | Address input 0 connected directly to VCC or ground for hardware slave address selection. |
| 2 | A1 | input | Address input 1 connected directly to VCC or ground for hardware slave address selection. |
| 3 | RESET | input | Active-low reset input that resets the I2C state machine and deselects both channels when held low for minimum tWL of 4 ns. |
| 4 | INT0 | input | Active-low interrupt input 0 for channel 0 slaves with required low-level pulse duration tPWRL of 1 µs. |
| 5 | SD0 | bidirectional | Serial data 0 line for channel 0 I2C communication connected to pull-up voltage VDPU0 through pull-up resistor. |
| 6 | SC0 | bidirectional | Serial clock 0 line for channel 0 I2C communication connected to pull-up voltage VDPU0 through pull-up resistor. |
| 7 | GND | power_in | Ground reference voltage. |
| 8 | INT1 | input | Active-low interrupt input 1 for channel 1 slaves with required low-level pulse duration tPWRL of 1 µs. |
| 9 | SD1 | bidirectional | Serial data 1 line for channel 1 I2C communication connected to pull-up voltage VDPU1 through pull-up resistor. |
| 10 | SC1 | bidirectional | Serial clock 1 line for channel 1 I2C communication connected to pull-up voltage VDPU1 through pull-up resistor. |
| 11 | INT | output | Active-low interrupt output acting as AND of INT1 and INT0 inputs, connected to pull-up voltage VDPUM through pull-up resistor. |
| 12 | SCL | bidirectional | Serial clock line from I2C/SMBus master connected to pull-up voltage VDPUM through pull-up resistor. |
| 13 | SDA | bidirectional | Serial data line from I2C/SMBus master connected to pull-up voltage VDPUM through pull-up resistor. |
| 14 | VCC | power_in | Supply power voltage input operating range 1.65 V to 5.5 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | TSSOP-14 |
| Category | Logic |
| Pins | 14 |
CAD (KiCad official)
- Symbol:
TCA9543APWR - Footprint:
Package_SO:TSSOP-14_4.4x5mm_P0.65mm - 3D model: TSSOP-14 (KiCad packages3D, STEP)
- 3D model files:
tca9543apwr-etched.step/tca9543apwr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tca9543apwr.step/tca9543apwr.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 2026-09-23, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-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).