# SN74AUP1G99DCTR

**Texas Instruments** · Logic Gates · MSOP-8

SN74AUP1G99DCTR from Texas Instruments, in a MSOP-8. 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 Schmitt-trigger input; low enables Y output per A,B,C,D configuration, high forces Y to high-impedance state. |
| 2 | A | input | Configuration Schmitt-trigger input with 1.5 pF capacitance; sets output function with B,C,D when OE is low; floating inputs allowed. |
| 3 | B | input | Configuration Schmitt-trigger input with 1.5 pF capacitance; sets output function with A,C,D when OE is low; floating inputs allowed. |
| 4 | GND | power_in | Power supply ground return; ±50 mA continuous current rating. |
| 5 | Y | tri_state | Three-state output; logical combination of A,B,C,D inputs when OE is low, high-impedance when OE is high; ±20 mA output current maximum. |
| 6 | D | input | Configuration Schmitt-trigger input with 1.5 pF capacitance; sets output function with A,B,C when OE is low; floating inputs allowed. |
| 7 | C | input | Configuration Schmitt-trigger input with 1.5 pF capacitance; sets output function with A,B,D when OE is low; floating inputs allowed. |
| 8 | VCC | power_in | Power supply input; 0.8 V to 3.6 V operating range; ±50 mA maximum continuous current rating. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | MSOP-8 |
| Category | Logic |
| Pins | 8 |

## CAD (KiCad official)

- Symbol: `SN74AUP1G99DCTR`
- Footprint: `Package_SO:MSOP-8_3x3mm_P0.65mm`
- 3D model: MSOP-8 (KiCad packages3D, STEP)
- 3D model files: `sn74aup1g99dctr-etched.step` / `sn74aup1g99dctr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sn74aup1g99dctr.step` / `sn74aup1g99dctr.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/sn74aup1g99) (29 pp, sha256 `c08f4a7b3941f975`, retrieved 2026-10-03, tier: lcsc)
- **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/sn74aup1g99dctr-datasheet.pdf)