# SN74LVC373APWR

**Texas Instruments** · Latches · TSSOP-20

SN74LVC373APWR from Texas Instruments, in a TSSOP-20. 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 | OE | input | Output Enable input for controlling tri-state outputs. |
| 2 | 1Q | tri_state | Three-state output 1 of the transparent latch. |
| 3 | 1D | input | Data input 1 for the transparent latch. |
| 4 | 2D | input | Data input 2 for the transparent latch. |
| 5 | 2Q | tri_state | Three-state output 2 of the transparent latch. |
| 6 | 3Q | tri_state | Three-state output 3 of the transparent latch. |
| 7 | 3D | input | Data input 3 for the transparent latch. |
| 8 | 4D | input | Data input 4 for the transparent latch. |
| 9 | 4Q | tri_state | Three-state output 4 of the transparent latch. |
| 10 | GND | power_in | Ground reference pin. |
| 11 | LE | input | Latch Enable input for controlling latch transparency. |
| 12 | 5Q | tri_state | Three-state output 5 of the transparent latch. |
| 13 | 5D | input | Data input 5 for the transparent latch. |
| 14 | 6D | input | Data input 6 for the transparent latch. |
| 15 | 6Q | tri_state | Three-state output 6 of the transparent latch. |
| 16 | 7Q | tri_state | Three-state output 7 of the transparent latch. |
| 17 | 7D | input | Data input 7 for the transparent latch. |
| 18 | 8D | input | Data input 8 for the transparent latch. |
| 19 | 8Q | tri_state | Three-state output 8 of the transparent latch. |
| 20 | VCC | power_out | Positive power supply pin, 1.65 V to 3.6 V for SN74LVC373A. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | TSSOP-20 |
| Category | Logic |
| Pins | 20 |

## CAD (KiCad official)

- Symbol: `SN74LVC373APWR`
- Footprint: `Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm`
- 3D model: TSSOP-20 (KiCad packages3D, STEP)
- 3D model files: `sn74lvc373apwr-etched.step` / `sn74lvc373apwr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sn74lvc373apwr.step` / `sn74lvc373apwr.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/lit/ds/symlink/sn74lvc373a.pdf) (36 pp, sha256 `b244b37c043f610f`, retrieved 2026-10-05, tier: manufacturer)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, 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/sn74lvc373apwr-datasheet.pdf)