GD25Q16ETIGR from GigaDevice Semicon Beijing, in a SOP-8. 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	CS#	input	Chip Select Input, active low. Must be driven high when the device is not selected; do not leave floating after power-on.
2	SO/IO1	bidirectional	Serial Data Output in standard SPI mode; bidirectional Data I/O 1 in Dual/Quad SPI modes. Data shifts out on the falling edge of SCLK in standard SPI.
3	WP#/IO2	bidirectional	Write Protect input (active low) in standard/dual SPI, protecting the Block Protect bits (BP4-BP0) and SRP bits when low. Becomes bidirectional Quad I/O 2 when the non-volatile Quad Enable (QE) bit is set.
4	VSS	power_in	Ground reference (0V) for the device power supply and I/O.
5	SI/IO0	bidirectional	Serial Data Input in standard SPI mode; bidirectional Data I/O 0 in Dual/Quad SPI modes. Data is latched on the rising edge of SCLK in standard SPI.
6	SCLK	input	Serial Clock Input. Provides the timing reference for all serial input and output; supports SPI modes 0 and 3 at up to 133MHz with 30pF load.
7	HOLD#/IO3	bidirectional	Hold input (active low) pauses serial communication without deselecting the device when QE=0. Becomes bidirectional Quad I/O 3 when the non-volatile Quad Enable (QE) bit is set.
8	VCC	power_in	Power supply input. Full operating range 2.7-3.6V; typical standby current 11uA, deep power-down current 1uA.

Key specifications

Parameter	Value
Manufacturer	GigaDevice Semicon Beijing
Package	SOP-8
Category	Memory
Pins	8

Ordering variants

Same part, different packaging or reel option.

GD25Q16ETIGR
GD25Q16ETIGRSIGR
GD25Q16ETIGRSIG

CAD (KiCad official)

Symbol: GD25Q16ETIGR
Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
3D model: SOP-8 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`gd25q16etigr.step`	122 KB	You want the bare part, or you mark your own boards.
`gd25q16etigr-etched.step`	2.4 MB	You want the part with `GD25Q16ETIGR` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 597 faces against 147 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: GigaDevice Semicon Beijing datasheet (58 pp, sha256 e664882f90d940a2, 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