74HC4066D

@@ -0,0 +1,55 @@+# 74HC4066D++**Nexperia** · Analog Switches, Multiplexers · SOIC-14++74HC4066D 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 | 1Y | bidirectional | Analog switch 1 independent input or output terminal. Bidirectional analog I/O connected to 1Z through the analog switch when enable 1E is HIGH. Switch current limit ±25 mA. |+| 2 | 1Z | bidirectional | Analog switch 1 independent input or output terminal. Bidirectional analog I/O connected to 1Y through the analog switch when enable 1E is HIGH. |+| 3 | 2Z | bidirectional | Analog switch 2 independent input or output terminal. Bidirectional analog I/O connected to 2Y when 2E is HIGH. |+| 4 | 2Y | bidirectional | Analog switch 2 independent input or output terminal. Bidirectional analog I/O connected to 2Z when 2E is HIGH. |+| 5 | 2E | input | Enable input for switch 2 (active HIGH). H = switch ON, L = switch OFF. VIH ≥ 3.15 V at VCC = 4.5 V (CMOS levels for 74HC). |+| 6 | 3E | input | Enable input for switch 3 (active HIGH). H = switch ON, L = switch OFF. |+| 7 | GND | power_in | Ground reference (0 V). Maximum ground current ±50 mA. |+| 8 | 3Y | bidirectional | Analog switch 3 independent input or output terminal. Bidirectional analog I/O connected to 3Z when 3E is HIGH. |+| 9 | 3Z | bidirectional | Analog switch 3 independent input or output terminal. Bidirectional analog I/O connected to 3Y when 3E is HIGH. |+| 10 | 4Z | bidirectional | Analog switch 4 independent input or output terminal. Bidirectional analog I/O connected to 4Y when 4E is HIGH. |+| 11 | 4Y | bidirectional | Analog switch 4 independent input or output terminal. Bidirectional analog I/O connected to 4Z when 4E is HIGH. |+| 12 | 4E | input | Enable input for switch 4 (active HIGH). H = switch ON, L = switch OFF. |+| 13 | 1E | input | Enable input for switch 1 (active HIGH). H = switch ON, L = switch OFF. |+| 14 | VCC | power_in | Positive supply voltage. Operating range 2.0 V to 10.0 V for 74HC4066; absolute max +11.0 V. ICC max 50 mA. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Nexperia |+| Package | SOIC-14 |+| Category | Interface |+| Pins | 14 |++## Ordering variants++- `74HC4066DD`+- `74HC4066DPW`+- `74HC4066DBQ`++## CAD (KiCad official)++- Symbol: `74HC4066D`+- 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/74HC4066D.pdf) (21 pp, sha256 `3fca0cb9e46e306f`, 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/74hc4066d-datasheet.pdf)

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