# SN74HC05NSR

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

SN74HC05NSR 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 | Buffered input for channel 1 inverter; input voltage range 0 to VCC |
| 2 | 1Y | output | Open-drain output for channel 1 inverter; maximum continuous output current ±25 mA |
| 3 | 2A | input | Buffered input for channel 2 inverter; input voltage range 0 to VCC |
| 4 | 2Y | output | Open-drain output for channel 2 inverter; maximum continuous output current ±25 mA |
| 5 | 3A | input | Buffered input for channel 3 inverter; input voltage range 0 to VCC |
| 6 | 3Y | output | Open-drain output for channel 3 inverter; maximum continuous output current ±25 mA |
| 7 | GND | power_in | Ground reference; maximum continuous current rating ±50 mA |
| 8 | 4Y | output | Open-drain output for channel 4 inverter; maximum continuous output current ±25 mA |
| 9 | 4A | input | Buffered input for channel 4 inverter; input voltage range 0 to VCC |
| 10 | 5Y | output | Open-drain output for channel 5 inverter; maximum continuous output current ±25 mA |
| 11 | 5A | input | Buffered input for channel 5 inverter; input voltage range 0 to VCC |
| 12 | 6Y | output | Open-drain output for channel 6 inverter; maximum continuous output current ±25 mA |
| 13 | 6A | input | Buffered input for channel 6 inverter; input voltage range 0 to VCC |
| 14 | VCC | power_in | Positive supply voltage; rated 2 V to 6 V with maximum continuous current ±50 mA |

## Key specifications

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

## CAD (KiCad official)

- Symbol: `SN74HC05NSR`
- Footprint: `Package_SO:SOIC-14_3.9x8.7mm_P1.27mm`
- 3D model: SOIC-14-208mil (KiCad packages3D, STEP)
- 3D model files: `sn74hc05nsr-etched.step` / `sn74hc05nsr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sn74hc05nsr.step` / `sn74hc05nsr.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/sn74hc05) (33 pp, sha256 `4b5dc8abc91cee82`, retrieved 2026-10-05, 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 0.3`, 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/sn74hc05nsr-datasheet.pdf)