# 74AC14SC

**onsemi** · Inverters · SOIC-14

74AC14SC from onsemi, in a SOIC-14. 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 | I0 | input | Schmitt-trigger input of inverter 0, which drives output O0. |
| 2 | O0 | output | Inverting output of gate 0, sources/sinks 24mA. |
| 3 | I1 | input | Schmitt-trigger input of inverter 1, which drives output O1. |
| 4 | O1 | output | Inverting output of gate 1, sources/sinks 24mA. |
| 5 | I2 | input | Schmitt-trigger input of inverter 2, which drives output O2. |
| 6 | O2 | output | Inverting output of gate 2, sources/sinks 24mA. |
| 7 | GND | power_in | Ground reference for the device. |
| 8 | O3 | output | Inverting output of gate 3, sources/sinks 24mA. |
| 9 | I3 | input | Schmitt-trigger input of inverter 3, which drives output O3. |
| 10 | O4 | output | Inverting output of gate 4, sources/sinks 24mA. |
| 11 | I4 | input | Schmitt-trigger input of inverter 4, which drives output O4. |
| 12 | O5 | output | Inverting output of gate 5, sources/sinks 24mA. |
| 13 | I5 | input | Schmitt-trigger input of inverter 5, which drives output O5. |
| 14 | VCC | power_in | Positive supply voltage for the device. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | onsemi |
| Package | SOIC-14 |
| Category | Logic ICs |
| Pins | 14 |

## CAD (KiCad official)

- Symbol: `74AC14SC`
- Footprint: `Package_SO:SOIC-14_3.9x8.7mm_P1.27mm`
- 3D model: SOIC-14 (KiCad packages3D, STEP)
- 3D model files: `74ac14sc-etched.step` / `74ac14sc-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `74ac14sc.step` / `74ac14sc.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [onsemi datasheet](docs/74ac14sc-datasheet.pdf) (11 pp, sha256 `a61566ed52e92377`, retrieved 2026-10-30, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (vision), consensus `claude-opus-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/74ac14sc-datasheet.pdf)