# SN74LS14NSR

**Texas Instruments** · Inverters · SOIC-14-208mil

SN74LS14NSR from Texas Instruments, in a SOIC-14-208mil. 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 | 1A | input | Schmitt-trigger inverter input for Channel 1; input voltage range 0 V to 7 V (absolute maximum). |
| 2 | 1Y | output | Inverted output for Channel 1; sources 0.4 mA at high level and sinks 8 mA at low level. |
| 3 | 2A | input | Schmitt-trigger inverter input for Channel 2; input voltage range 0 V to 7 V (absolute maximum). |
| 4 | 2Y | output | Inverted output for Channel 2; sources 0.4 mA at high level and sinks 8 mA at low level. |
| 5 | 3A | input | Schmitt-trigger inverter input for Channel 3; input voltage range 0 V to 7 V (absolute maximum). |
| 6 | 3Y | output | Inverted output for Channel 3; sources 0.4 mA at high level and sinks 8 mA at low level. |
| 7 | GND | power_in | Ground return; zero voltage reference potential for the device. |
| 8 | 4Y | output | Inverted output for Channel 4; sources 0.4 mA at high level and sinks 8 mA at low level. |
| 9 | 4A | input | Schmitt-trigger inverter input for Channel 4; input voltage range 0 V to 7 V (absolute maximum). |
| 10 | 5Y | output | Inverted output for Channel 5; sources 0.4 mA at high level and sinks 8 mA at low level. |
| 11 | 5A | input | Schmitt-trigger inverter input for Channel 5; input voltage range 0 V to 7 V (absolute maximum). |
| 12 | 6Y | output | Inverted output for Channel 6; sources 0.4 mA at high level and sinks 8 mA at low level. |
| 13 | 6A | input | Schmitt-trigger inverter input for Channel 6; input voltage range 0 V to 7 V (absolute maximum). |
| 14 | VCC | power_in | Positive power supply; recommended voltage 4.75 V to 5.25 V for operation at 0 to 70°C. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-14-208mil |
| Category | Logic |
| Pins | 14 |

## CAD (KiCad official)

- Symbol: `SN74LS14NSR`
- Footprint: `Package_SO:SOIC-14_3.9x8.7mm_P1.27mm`
- 3D model: SOIC-14-208mil (KiCad packages3D, STEP)
- 3D model files: `sn74ls14nsr-etched.step` / `sn74ls14nsr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sn74ls14nsr.step` / `sn74ls14nsr.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/sn74ls14) (39 pp, sha256 `059f7041c38abb52`, retrieved 2026-10-07, 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/sn74ls14nsr-datasheet.pdf)