GN1616 from GN Semic, in a SOP-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	DIO	bidirectional	Serial data input/output, LSB first. Data is shifted in on the CLK rising edge and shifted out on the CLK falling edge. Output stage is N-channel open drain with an internal pull-up of approximately 20 kΩ; low-level output drive IOL ≈ 4-8 mA at VO = 0.4 V.
2	CLK	input	Serial clock input. Data on DIO is latched on the rising edge and output data changes on the falling edge. Maximum clock frequency 1 MHz at 50% duty cycle; minimum pulse width 400 ns. CLK is ignored while STB is high.
3	STB	input	Chip-select / strobe input. A rising or falling edge initializes the serial interface, then the chip waits for a command; the first byte after STB goes low is treated as a command and terminates any in-progress operation. While STB is high, CLK is ignored.
4	VDD	power_in	Logic supply voltage. Recommended operating range 3.0-5.5 V (typ 5 V); absolute maximum -0.5 to +7.0 V.
5	SEG1	output	Segment output 1, P-channel open-drain. Sources up to
6	SEG2	output	Segment output 2, P-channel open-drain LED segment driver.
7	SEG3	output	Segment output 3, P-channel open-drain LED segment driver.
8	SEG4	output	Segment output 4, P-channel open-drain LED segment driver.
9	SEG5	output	Segment output 5, P-channel open-drain LED segment driver.
10	SEG6	output	Segment output 6, P-channel open-drain LED segment driver.
11	SEG7	output	Segment output 7, P-channel open-drain LED segment driver.
12	GRID4	output	Digit/grid output 4, N-channel open-drain. Sinks up to IOL ≈ 140 mA (typ) at VO = 0.3 V; absolute maximum grid drive current 200 mA.
13	GRID3	output	Digit/grid output 3, N-channel open-drain LED digit driver.
14	GND	power_in	Logic ground reference; connect to system ground (0 V).
15	GRID2	output	Digit/grid output 2, N-channel open-drain LED digit driver.
16	GRID1	output	Digit/grid output 1, N-channel open-drain LED digit driver.

Key specifications

Parameter	Value
Manufacturer	GN Semic
Package	SOP-16
Category	LED-drv
Pins	16

Ordering variants

Same part, different packaging or reel option.

GN1616SOP16

CAD (KiCad official)

Symbol: GN1616
Footprint: Package_SO:SOIC-16_3.9x9.9mm_P1.27mm
3D model: SOP-16 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`gn1616.step`	217 KB	You want the bare part, or you mark your own boards.
`gn1616-etched.step`	1.8 MB	You want the part with `GN1616` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 463 faces against 267 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: GN Semic datasheet (9 pp, sha256 4fbab30f2e850746, retrieved 2026-08-17, 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: 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