TS5A3359DCUR from Texas Instruments, in a VSSOP-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	NO0	bidirectional	Normally open analog switch throw 0. Bidirectional analog I/O connected to COM when IN2=0, IN1=0. Signal range 0 to VCC; on-resistance ~1 Ω typical at VCC=4.5 V.
2	NO1	bidirectional	Normally open analog switch throw 1. Bidirectional analog I/O connected to COM when IN2=0, IN1=1. Signal range 0 to VCC.
3	NO2	bidirectional	Normally open analog switch throw 2. Bidirectional analog I/O connected to COM when IN2=1, IN1=0. Signal range 0 to VCC.
4	GND	power_in	Ground reference (0 V). Continuous current through GND limited to ±100 mA absolute maximum.
5	IN2	input	Digital control input (MSB) selecting which NO port connects to COM. 5.5-V tolerant regardless of VCC. VIH ≥ 2.4 V (5-V), VIL ≤ 0.8 V. Must not float - tie to VCC or GND when unused.
6	IN1	input	Digital control input (LSB) selecting which NO port connects to COM. 5.5-V tolerant regardless of VCC. VIH ≥ 2.4 V (5-V), VIL ≤ 0.8 V. Must not float - tie to VCC or GND when unused.
7	COM	bidirectional	Common analog port. Bidirectional analog I/O routed to NO0/NO1/NO2 based on IN1/IN2. Signal range 0 to VCC; typical on-state current ±100 mA.
8	VCC	power_in	Positive supply, 1.65 V to 5.5 V single-supply operation. Typical ICC = 16 nA at 5.5 V. Provides isolation in power-down when VCC = 0.

Key specifications

Parameter	Value
Manufacturer	Texas Instruments
Package	VSSOP-8
Category	Interface
Pins	8

Ordering variants

Same part, different packaging or reel option.

TS5A3359DCUR
TS5A3359DCURDCUT
TS5A3359DCURYZPR

CAD (KiCad official)

Symbol: TS5A3359DCUR
Footprint: Package_SO:VSSOP-8_2.3x2mm_P0.5mm
3D model: VSSOP-8 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`ts5a3359dcur.step`	122 KB	You want the bare part, or you mark your own boards.
`ts5a3359dcur-etched.step`	2.8 MB	You want the part with `TS5A3359DCUR` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 673 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: Texas Instruments datasheet (36 pp, sha256 1122b3e50d0787ae, retrieved 2026-08-17, tier: manufacturer)
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