TP74LVC1G157C6 from TECH PUBLIC, in a SOT-363. 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	I1	input	Data input 1. Routed to output Y when the select input S is high. CMOS logic input with VIH ≥ 0.7×Vcc and VIL ≤ 0.3×Vcc at Vcc=4.5V-5.5V.
2	GND	power_in	Ground reference (0 V) for the device.
3	I0	input	Data input 0. Routed to output Y when the select input S is low. CMOS logic input with VIH ≥ 0.7×Vcc and VIL ≤ 0.3×Vcc at Vcc=4.5V-5.5V.
4	Y	output	Multiplexer output. Drives the selected data input (I0 when S=L, I1 when S=H) with ±24 mA drive capability at Vcc=3.0V. VOH ≥ Vcc-0.1 V at IOH=-100 µA.
5	VCC	power_in	Positive supply voltage. Operating range 1.65 V to 5.5 V; absolute max +6.5 V. Quiescent supply current ICC ≤ 10 µA.
6	S	input	Data select input. S=L selects I0 to output Y; S=H selects I1 to output Y. CMOS logic input.

Key specifications

Parameter	Value
Manufacturer	TECH PUBLIC
Package	SOT-363
Category	Interface
Pins	6

Ordering variants

Same part, different packaging or reel option.

TP74LVC1G157C6
TP74LVC1G157C6S6

CAD (KiCad official)

Symbol: TP74LVC1G157C6
Footprint: Package_TO_SOT_SMD:SOT-363_SC-70-6
3D model: SOT-363 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`tp74lvc1g157c6.step`	99 KB	You want the bare part, or you mark your own boards.
`tp74lvc1g157c6-etched.step`	2.1 MB	You want the part with `TP74LVC1G157C6` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 534 faces against 117 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: TECH PUBLIC datasheet (7 pp, sha256 f2228207382906f8, 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