GT4227MA from GTIC, in a MSOP-10. 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	V+	power_in	Positive power supply. Operating range 1.8 V to 5.5 V; absolute max 6 V. Bypass with a local decoupling capacitor to GND.
2	S	input	Channel select input (digital). S=0 selects HSD1± to D±; S=1 selects HSD2± to D± (when /OE=0). VIH ≥ 1.7 V, VIL ≤ 0.5 V at 3.3 V. Do not float; must be held at V+ or GND.
3	D+	bidirectional	Common data port (positive). Bidirectional high-speed USB 2.0 differential line, switched to either HSD1+ or HSD2+ depending on S/OE. Rail-to-rail signal range (0 V to V+).
4	D-	bidirectional	Common data port (negative). Bidirectional high-speed USB 2.0 differential line, switched to either HSD1- or HSD2- depending on S/OE. Rail-to-rail signal range (0 V to V+).
5	GND	power_in	Ground reference (0 V) for the analog switch and digital control logic.
6	HSD1-	bidirectional	High-speed data port 1, negative line. Bidirectional USB 2.0 signal, connected to D- when S=0 and /OE=0.
7	HSD1+	bidirectional	High-speed data port 1, positive line. Bidirectional USB 2.0 signal, connected to D+ when S=0 and /OE=0.
8	HSD2-	bidirectional	High-speed data port 2, negative line. Bidirectional USB 2.0 signal, connected to D- when S=1 and /OE=0.
9	HSD2+	bidirectional	High-speed data port 2, positive line. Bidirectional USB 2.0 signal, connected to D+ when S=1 and /OE=0.
10	/OE	input	Active-low output enable (digital). /OE=0 enables the selected switch pair; /OE=1 disables both channels (all HSD paths OFF). VIH ≥ 1.7 V, VIL ≤ 0.5 V at 3.3 V. Do not float.

Key specifications

Parameter	Value
Manufacturer	GTIC
Package	MSOP-10
Category	Interface
Pins	10

Ordering variants

Same part, different packaging or reel option.

GT4227MA
GT4227MAQA

CAD (KiCad official)

Symbol: GT4227MA
Footprint: Package_SO:MSOP-10_3x3mm_P0.5mm
3D model: MSOP-10 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`gt4227ma.step`	148 KB	You want the bare part, or you mark your own boards.
`gt4227ma-etched.step`	1.6 MB	You want the part with `GT4227MA` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 417 faces against 177 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

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

Datasheet: GTIC datasheet (14 pp, sha256 2a0efdcba57a0641, retrieved 2026-08-17, tier: lcsc)
Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF