component
PCA9546APWR
Public Made by Adomby adom
Texas Instruments Interface - Specialized, TSSOP-16. Datasheet-verified pinout, 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
markdownPCA9546APWR
Texas Instruments · Interface - Specialized · TSSOP-16
PCA9546APWR from Texas Instruments, in a TSSOP-16. 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; connect directly to VCC or ground |
| 2 | A1 | input | Address input 1; connect directly to VCC or ground |
| 3 | RESET | input | Active-low reset input; connect to VDPUM through a pull-up resistor if not used |
| 4 | SD0 | bidirectional | Serial data 0; bidirectional open-drain I2C bus line for channel 0, connect to VDPU0 through a pull-up resistor |
| 5 | SC0 | bidirectional | Serial clock 0; bidirectional open-drain I2C bus line for channel 0, connect to VDPU0 through a pull-up resistor |
| 6 | SD1 | bidirectional | Serial data 1; bidirectional open-drain I2C bus line for channel 1, connect to VDPU1 through a pull-up resistor |
| 7 | SC1 | bidirectional | Serial clock 1; bidirectional open-drain I2C bus line for channel 1, connect to VDPU1 through a pull-up resistor |
| 8 | GND | power_in | Ground reference |
| 9 | SD2 | bidirectional | Serial data 2; bidirectional open-drain I2C bus line for channel 2, connect to VDPU2 through a pull-up resistor |
| 10 | SC2 | bidirectional | Serial clock 2; bidirectional open-drain I2C bus line for channel 2, connect to VDPU2 through a pull-up resistor |
| 11 | SD3 | bidirectional | Serial data 3; bidirectional open-drain I2C bus line for channel 3, connect to VDPU3 through a pull-up resistor |
| 12 | SC3 | bidirectional | Serial clock 3; bidirectional open-drain I2C bus line for channel 3, connect to VDPU3 through a pull-up resistor |
| 13 | A2 | input | Address input 2; connect directly to VCC or ground |
| 14 | SCL | bidirectional | Serial clock line (upstream); bidirectional open-drain I2C bus line for master interface, connect to VDPUM through a pull-up resistor |
| 15 | SDA | bidirectional | Serial data line (upstream); bidirectional open-drain I2C bus line for master interface, connect to VDPUM through a pull-up resistor |
| 16 | VCC | power_in | Supply voltage, operating range 2.3 V to 5.5 V |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | TSSOP-16 |
| Category | Interface |
| Pins | 16 |
CAD (KiCad official)
- Symbol:
PCA9546APWR - Footprint:
Package_SO:TSSOP-16_4.4x5mm_P0.65mm - 3D model: TSSOP-16 (KiCad packages3D, STEP)
- 3D model files:
pca9546apwr-etched.step/pca9546apwr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);pca9546apwr.step/pca9546apwr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (43 pp, sha256
fd5fad659b8c8ffd, retrieved 2026-09-22, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-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).