component
TCA9554DWR
Public Made by Adomby adom
Texas Instruments I/O Expanders, SOIC-16-300mil. 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
markdownTCA9554DWR
Texas Instruments · I/O Expanders · SOIC-16-300mil
TCA9554DWR from Texas Instruments, in a SOIC-16-300mil. 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. Connect directly to VCC or ground |
| 2 | A1 | input | Address input. Connect directly to VCC or ground |
| 3 | A2 | input | Address input. Connect directly to VCC or ground |
| 4 | P0 | bidirectional | P-port input-output. Push-pull design structure. At power on, P0 is configured as an input |
| 5 | P1 | bidirectional | P-port input-output. Push-pull design structure. At power on, P1 is configured as an input |
| 6 | P2 | bidirectional | P-port input-output. Push-pull design structure. At power on, P2 is configured as an input |
| 7 | P3 | bidirectional | P-port input-output. Push-pull design structure. At power on, P3 is configured as an input |
| 8 | GND | power_in | Ground |
| 9 | P4 | bidirectional | P-port input-output. Push-pull design structure. At power on, P4 is configured as an input |
| 10 | P5 | bidirectional | P-port input-output. Push-pull design structure. At power on, P5 is configured as an input |
| 11 | P6 | bidirectional | P-port input-output. Push-pull design structure. At power on, P6 is configured as an input |
| 12 | P7 | bidirectional | P-port input-output. Push-pull design structure. At power on, P7 is configured as an input |
| 13 | INT | output | Interrupt output. Connect to VCC through a pull-up resistor |
| 14 | SCL | input | Serial clock bus. Connect to VCC through a pull-up resistor |
| 15 | SDA | bidirectional | Serial data bus. Connect to VCC through a pull-up resistor |
| 16 | VCC | power_out | Supply voltage |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-16-300mil |
| Category | Interface |
| Pins | 16 |
CAD (KiCad official)
- Symbol:
TCA9554DWR - Footprint:
Package_SO:SOIC-16_3.9x9.9mm_P1.27mm - 3D model: SOIC-16-300mil (KiCad packages3D, STEP)
- 3D model files:
tca9554dwr-etched.step/tca9554dwr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tca9554dwr.step/tca9554dwr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (48 pp, sha256
a2ebe3b2daa63cfa, 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, 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).