# SN74LVC1G125DCK3

**Texas Instruments** · Buffers, Drivers, Receivers, Transceivers · SC-70-5

SN74LVC1G125DCK3 from Texas Instruments, in a SC-70-5. 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 input (active low); when high, output Y enters high-impedance state; when low, output reflects input A; accepts input voltages 0 to 5.5V. |
| 2 | A | input | Data input; drives output Y when OE is low according to the device logic function; accepts input voltages 0 to 5.5V. |
| 3 | GND | power_in | Ground; device reference voltage. |
| 4 | Y | output | 3-state output; drives data from input A when OE is low, enters high-impedance when OE is high; output voltage range 0 to VCC. |
| 5 | VCC | power_in | Power supply voltage; operating range 1.65V to 5.5V; maximum absolute rating 6.5V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SC-70-5 |
| Category | Logic |
| Pins | 5 |

## CAD (KiCad official)

- Symbol: `SN74LVC1G125DCK3`
- Footprint: `Package_TO_SOT_SMD:SOT-353_SC-70-5`
- 3D model: SC-70-5 (KiCad packages3D, STEP)
- 3D model files: `sn74lvc1g125dck3-etched.step` / `sn74lvc1g125dck3-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sn74lvc1g125dck3.step` / `sn74lvc1g125dck3.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/sn74lvc1g125) (52 pp, sha256 `65afa3f9d879b37c`, retrieved 2026-09-27, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.2`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-sonnet-4-6` (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/sn74lvc1g125dck3-datasheet.pdf)