SN74LVC1G3157DBVR-TUDI from Tudi, in a SC-70-6. 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	NO	bidirectional	Normally-Open analog switch terminal. Connected to COM when IN is high. Analog signal range Vss to VDD, on-resistance 4.0Ω typical at VS=4.5V.
2	VSS	power_in	Ground / negative supply reference. Analog signal inputs must remain within Vss-0.5V to VDD+0.5V.
3	NC	bidirectional	Normally-Closed analog switch terminal. Connected to COM when IN is low. Analog signal range Vss to VDD, on-resistance 4.0Ω typical at VS=4.5V.
4	COM	bidirectional	Common analog switch terminal (pole). Routed to NC when IN=low, or to NO when IN=high. Bidirectional analog path with rail-to-rail signal handling.
5	VDD	power_in	Positive supply input, +1.8V to +5.5V single-supply operation. Decouple with 0.1µF close to the pin. Absolute maximum 7.5V referenced to Vss.
6	IN	input	Digital control input selecting the switch path. IN=low connects COM↔NC; IN=high connects COM↔NO. TTL/CMOS-compatible: VIH ≥ 1.5V (VS=5V) / 0.9V (VS=3V), VIL ≤ 0.55V / 0.45V. Tolerates drive up to 5.5V independent of VDD.

Key specifications

Parameter	Value
Manufacturer	Tudi
Package	SC-70-6
Category	Interface
Pins	6

Ordering variants

Same part, different packaging or reel option.

SN74LVC1G3157DBVR-TUDI
SN74LVC1G3157DBVR-TUDITD3157-TR

CAD (KiCad official)

Symbol: SN74LVC1G3157DBVR-TUDI
Footprint: Package_TO_SOT_SMD:SOT-363_SC-70-6
3D model: SC-70-6 (KiCad packages3D, STEP)

Provenance

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

Datasheet: Tudi datasheet (9 pp, sha256 ddbbfd4853747ef1, 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