74HC08D

@@ -0,0 +1,56 @@+# 74HC08D++**Nexperia** · Gates · SOIC-14++74HC08D from Nexperia, in a SOIC-14. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | 1A | input | Data input A of gate 1 (2-input AND). CMOS-level logic input; includes clamp diodes to VCC and GND. |+| 2 | 1B | input | Data input B of gate 1 (2-input AND). CMOS-level logic input; includes clamp diodes to VCC and GND. |+| 3 | 1Y | output | Data output Y of gate 1. Push-pull CMOS output; 1Y = 1A AND 1B. |+| 4 | 2A | input | Data input A of gate 2 (2-input AND). CMOS-level logic input; includes clamp diodes to VCC and GND. |+| 5 | 2B | input | Data input B of gate 2 (2-input AND). CMOS-level logic input; includes clamp diodes to VCC and GND. |+| 6 | 2Y | output | Data output Y of gate 2. Push-pull CMOS output; 2Y = 2A AND 2B. |+| 7 | GND | power_in | Ground reference (0 V). All voltages are referenced to GND. |+| 8 | 3Y | output | Data output Y of gate 3. Push-pull CMOS output; 3Y = 3A AND 3B. |+| 9 | 3A | input | Data input A of gate 3 (2-input AND). CMOS-level logic input; includes clamp diodes to VCC and GND. |+| 10 | 3B | input | Data input B of gate 3 (2-input AND). CMOS-level logic input; includes clamp diodes to VCC and GND. |+| 11 | 4Y | output | Data output Y of gate 4. Push-pull CMOS output; 4Y = 4A AND 4B. |+| 12 | 4A | input | Data input A of gate 4 (2-input AND). CMOS-level logic input; includes clamp diodes to VCC and GND. |+| 13 | 4B | input | Data input B of gate 4 (2-input AND). CMOS-level logic input; includes clamp diodes to VCC and GND. |+| 14 | VCC | power_in | Positive supply voltage. Recommended operating range 2.0 V to 6.0 V (74HC08); absolute maximum -0.5 V to +7 V. Decouple to GND with a local 0.1 uF ceramic capacitor. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Nexperia |+| Package | SOIC-14 |+| Category | Logic |+| Pins | 14 |++## Ordering variants++- `74HC08DD`+- `74HC08DDB`+- `74HC08DPW`+- `74HC08DBQ`++## CAD (KiCad official)++- Symbol: `74HC08D`+- Footprint: `Package_SO:SOIC-14_3.9x8.7mm_P1.27mm`+- 3D model: SOIC-14 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Nexperia datasheet](https://assets.nexperia.com/documents/data-sheet/74HC08D.pdf) (14 pp, sha256 `6ef09938e8814089`, retrieved 2026-08-17, tier: manufacturer)+- **Extractor:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.+- **CAD:** KiCad official libraries (CC-BY-SA 4.0).++[Datasheet PDF](docs/74hc08d-datasheet.pdf)

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