XL74LS06 from XINLUDA, in a SOIC-14. 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	1A	input	Inverter 1 input (TTL-compatible). Drives the open-collector output 1Y; VIH >= 2 V, VIL <= 0.8 V.
2	1Y	output	Inverter 1 open-collector output. Requires external pull-up; can be pulled up to 30 V and sinks up to 40 mA.
3	2A	input	Inverter 2 input (TTL-compatible).
4	2Y	output	Inverter 2 open-collector output. External pull-up required; up to 30 V, 40 mA sink.
5	3A	input	Inverter 3 input (TTL-compatible).
6	3Y	output	Inverter 3 open-collector output. External pull-up required; up to 30 V, 40 mA sink.
7	GND	power_in	Ground reference (0 V). All voltages are referenced to this pin.
8	4Y	output	Inverter 4 open-collector output. External pull-up required; up to 30 V, 40 mA sink.
9	4A	input	Inverter 4 input (TTL-compatible).
10	5Y	output	Inverter 5 open-collector output. External pull-up required; up to 30 V, 40 mA sink.
11	5A	input	Inverter 5 input (TTL-compatible).
12	6Y	output	Inverter 6 open-collector output. External pull-up required; up to 30 V, 40 mA sink.
13	6A	input	Inverter 6 input (TTL-compatible).
14	VCC	power_in	Supply voltage. Recommended 4.5-5.5 V (nominal 5 V); absolute maximum 7 V. Bypass with a 0.1 uF capacitor placed close to the pin.

Key specifications

Parameter	Value
Manufacturer	XINLUDA
Package	SOIC-14
Category	Logic
Pins	14

Ordering variants

Same part, different packaging or reel option.

XL74LS06
XL74LS06XD74LS06

CAD (KiCad official)

Symbol: XL74LS06
Footprint: Package_SO:SOIC-14_3.9x8.7mm_P1.27mm
3D model: SOIC-14 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`xl74ls06.step`	195 KB	You want the bare part, or you mark your own boards.
`xl74ls06-etched.step`	1.9 MB	You want the part with `XL74LS06` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 483 faces against 237 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: XINLUDA datasheet (11 pp, sha256 ed945519c9ea062a, 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