# SN74LVC1G27DCKR

**Texas Instruments** · Logic Gates · SC-70-6

SN74LVC1G27DCKR from Texas Instruments, in a SC-70-6. 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 | A | input | Input to the 3-input NOR gate; accepts voltages from 0 to 5.5 V |
| 2 | GND | power_in | Ground reference |
| 3 | B | input | Input to the 3-input NOR gate; accepts voltages from 0 to 5.5 V |
| 4 | Y | output | Output of the 3-input NOR gate (Y = NOT(A OR B OR C)) |
| 5 | VCC | power_in | Power supply; recommended operating range 1.65 V to 5.5 V |
| 6 | C | input | Input to the 3-input NOR gate; accepts voltages from 0 to 5.5 V |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SC-70-6 |
| Category | Logic |
| Pins | 6 |

## CAD (KiCad official)

- Symbol: `SN74LVC1G27DCKR`
- Footprint: `Package_TO_SOT_SMD:SOT-363_SC-70-6`
- 3D model: SC-70-6 (KiCad packages3D, STEP)
- 3D model files: `sn74lvc1g27dckr-etched.step` / `sn74lvc1g27dckr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sn74lvc1g27dckr.step` / `sn74lvc1g27dckr.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/sn74lvc1g27.pdf) (29 pp, sha256 `52eba79ea5ba10a6`, retrieved 2026-10-07, 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/sn74lvc1g27dckr-datasheet.pdf)