TXU0304PWR from Texas Instruments, in a TSSOP-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	VCCA	power_in	A-port supply voltage. 1.1 V ≤ VCCA ≤ 5.5 V. Sets logic level for A1, A2, A3, A4Y (and optionally OE).
2	A1	input	Input A1. Schmitt-trigger input referenced to VCCA with integrated pull-down. Data forwarded to B1Y.
3	A2	input	Input A2. Schmitt-trigger input referenced to VCCA with integrated pull-down. Data forwarded to B2Y.
4	A3	input	Input A3. Schmitt-trigger input referenced to VCCA with integrated pull-down. Data forwarded to B3Y.
5	A4Y	tri_state	Output A4. Push-pull 3-state output referenced to VCCA. Drives B→A translated signal from B4. Drive strength up to 12 mA at 5 V.
6	NC	unconnected	No internal connection. Leave floating or tie to any potential.
7	GND	power_in	Ground reference for both supply domains.
8	OE	input	Output Enable. Pull to GND to place all outputs (A4Y, B1Y, B2Y, B3Y) in high-impedance mode. Pull to VCCA or VCCB to enable all outputs. Schmitt-trigger input.
9	NC	unconnected	No internal connection. Leave floating or tie to any potential.
10	B4	input	Input B4. Schmitt-trigger input referenced to VCCB with integrated pull-down. Data forwarded to A4Y.
11	B3Y	tri_state	Output B3. Push-pull 3-state output referenced to VCCB. Drives A→B translated signal from A3. Drive strength up to 12 mA at 5 V.
12	B2Y	tri_state	Output B2. Push-pull 3-state output referenced to VCCB. Drives A→B translated signal from A2. Drive strength up to 12 mA at 5 V.
13	B1Y	tri_state	Output B1. Push-pull 3-state output referenced to VCCB. Drives A→B translated signal from A1. Drive strength up to 12 mA at 5 V.
14	VCCB	power_in	B-port supply voltage. 1.1 V ≤ VCCB ≤ 5.5 V. Sets logic level for B1Y, B2Y, B3Y, B4 (and optionally OE).

Key specifications

Parameter	Value
Manufacturer	Texas Instruments
Package	TSSOP-14
Category	Logic
Pins	14

Ordering variants

Same part, different packaging or reel option.

TXU0304PWR
TXU0304PWRBQA
TXU0304PWRRUT
TXU0304PWRDTR

CAD (KiCad official)

Symbol: TXU0304PWR
Footprint: Package_SO:TSSOP-14_4.4x5mm_P0.65mm
3D model: TSSOP-14 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`txu0304pwr.step`	194 KB	You want the bare part, or you mark your own boards.
`txu0304pwr-etched.step`	2.5 MB	You want the part with `TXU0304PWR` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 620 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: Texas Instruments datasheet (45 pp, sha256 f6f6178296b8d497, 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