# SN74AHC1G08DCK3

**Texas Instruments** · Logic Gates · SC-70-5

SN74AHC1G08DCK3 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 | A | input | Data input A; inputs are overvoltage tolerant up to 5.5 V at any valid VCC, should be held as close to 0 V or VCC as possible, and unused inputs must be tied to VCC or GND. |
| 2 | B | input | Data input B; inputs are overvoltage tolerant up to 5.5 V at any valid VCC, should be held as close to 0 V or VCC as possible, and unused inputs must be tied to VCC or GND. |
| 3 | GND | power_in | Ground reference; continuous current through VCC or GND is limited to ±50 mA. |
| 4 | Y | output | Data output (Y = A · B); at VCC = 5 V ± 0.5 V it sources up to -8 mA and sinks up to 8 mA, and output voltage is limited to 0 V to VCC. |
| 5 | VCC | power_in | Supply pin; recommended supply range is 2 V to 5.5 V, and a 0.1-µF bypass capacitor should be placed as close to this pin as possible. |

## Key specifications

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

## CAD (KiCad official)

- Symbol: `SN74AHC1G08DCK3`
- Footprint: `Package_TO_SOT_SMD:SOT-353_SC-70-5`
- 3D model: SC-70-5 (KiCad packages3D, STEP)
- 3D model files: `sn74ahc1g08dck3-etched.step` / `sn74ahc1g08dck3-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sn74ahc1g08dck3.step` / `sn74ahc1g08dck3.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/sn74ahc1g08) (26 pp, sha256 `48a13fee6544450d`, retrieved 2026-10-10, 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-5-5` (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/sn74ahc1g08dck3-datasheet.pdf)