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Generated by kicad-footprint-generator · KiCad file format 20260206

Name	Last commit message	Last updated
docs	tca9554adbqr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray	3d ago
viewers	tca9554adbqr: viewers · Ray	4d ago
package.json	Publish 0.1.0 · Ray	4d ago
page.json	Set visibility: public · Ray	4d ago
README.md	Initial commit: component/tca9554adbqr · Ray	4d ago
tca9554adbqr-etched.fit.json	tca9554adbqr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray	3d ago
tca9554adbqr-etched.glb	tca9554adbqr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray	3d ago
tca9554adbqr-etched.step	tca9554adbqr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray	3d ago
tca9554adbqr.glb	Publish 0.1.0 · Ray	4d ago
tca9554adbqr.kicad_mod	Publish 0.1.0 · Ray	4d ago
tca9554adbqr.kicad_sym	Publish 0.1.0 · Ray	4d ago
tca9554adbqr.lbr	Publish 0.1.0 · Ray	4d ago
tca9554adbqr.step	Publish 0.1.0 · Ray	4d ago

TCA9554ADBQR

Texas Instruments · I/O Expanders · SSOP-16-208mil

TCA9554ADBQR from Texas Instruments, in a SSOP-16-208mil. 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 with push-pull design structure configured as input at power-on
5	P1	bidirectional	P-port input-output with push-pull design structure configured as input at power-on
6	P2	bidirectional	P-port input-output with push-pull design structure configured as input at power-on
7	P3	bidirectional	P-port input-output with push-pull design structure configured as input at power-on
8	GND	power_in	Ground
9	P4	bidirectional	P-port input-output with push-pull design structure configured as input at power-on
10	P5	bidirectional	P-port input-output with push-pull design structure configured as input at power-on
11	P6	bidirectional	P-port input-output with push-pull design structure configured as input at power-on
12	P7	bidirectional	P-port input-output with push-pull design structure configured as input at power-on
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_in	Supply voltage

Key specifications

Parameter	Value
Manufacturer	Texas Instruments
Package	SSOP-16-208mil
Category	Interface
Pins	16

CAD (KiCad official)

Symbol: TCA9554ADBQR
Footprint: Package_SO:SSOP-16_5.3x6.2mm_P0.65mm
3D model: SSOP-16-208mil (KiCad packages3D, STEP)
3D model files: tca9554adbqr-etched.step / tca9554adbqr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tca9554adbqr.step / tca9554adbqr.glb are the bare package body.

Provenance

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

Datasheet: Texas Instruments datasheet (48 pp, sha256 b24c281fe34743a8, 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, primary claude-haiku-4-5-20251001 (text), consensus claude-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).

Datasheet PDF