# TXB0304RSVR

**Texas Instruments** · Translators, Level Shifters · UQFN-16(1.8x2.6)

TXB0304RSVR from Texas Instruments, in a UQFN-16(1.8x2.6). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | A1 | bidirectional | Bidirectional data I/O 1 on A-port, referenced to VCCA with 0.9 V to 3.6 V supply range. |
| 2 | A2 | bidirectional | Bidirectional data I/O 2 on A-port, referenced to VCCA with 0.9 V to 3.6 V supply range. |
| 3 | A3 | bidirectional | Bidirectional data I/O 3 on A-port, referenced to VCCA with 0.9 V to 3.6 V supply range. |
| 4 | A4 | bidirectional | Bidirectional data I/O 4 on A-port, referenced to VCCA with 0.9 V to 3.6 V supply range. |
| 5 | NC | unconnected | No connection; not internally connected. |
| 6 | GND | power_in | Ground reference for power supply. |
| 7 | GND | power_in | Ground reference for power supply. |
| 8 | OE | input | Output enable input referenced to VCCA; pull low to place all I/O outputs in high-impedance state. |
| 9 | B4 | bidirectional | Bidirectional data I/O 1 on B-port, referenced to VCCB with 0.9 V to 3.6 V supply range. |
| 10 | B3 | bidirectional | Bidirectional data I/O 2 on B-port, referenced to VCCB with 0.9 V to 3.6 V supply range. |
| 11 | B2 | bidirectional | Bidirectional data I/O 3 on B-port, referenced to VCCB with 0.9 V to 3.6 V supply range. |
| 12 | B1 | bidirectional | Bidirectional data I/O 4 on B-port, referenced to VCCB with 0.9 V to 3.6 V supply range. |
| 13 | VCCB | power_in | B-port supply voltage input, operating range 0.9 V to 3.6 V. |
| 14 | NC | unconnected | No connection; not internally connected. |
| 15 | NC | unconnected | No connection; not internally connected. |
| 16 | VCCA | power_in | A-port supply voltage input, operating range 0.9 V to 3.6 V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | UQFN-16(1.8x2.6) |
| Category | Logic |
| Pins | 16 |

## CAD (KiCad official)

- Symbol: `TXB0304RSVR`
- Footprint: `Package_DFN_QFN:UQFN-16_1.8x2.6mm_P0.4mm`
- 3D model: UQFN-16(1.8x2.6), generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 0.55 mm nominal UFQFPN height). Neither the vendor nor KiCad ships a 3D model for this package, so the dimensions are nominal, not the manufacturer's CAD (STEP)
- 3D model files: `txb0304rsvr-etched.step` / `txb0304rsvr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `txb0304rsvr.step` / `txb0304rsvr.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/gpn/txb0304) (27 pp, sha256 `7f5205e7b37673c7`, retrieved 2026-10-01, tier: lcsc)
- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.2`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-sonnet-5-5` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/txb0304rsvr-datasheet.pdf)