SN74HC08 Quad AND Gate

@@ -0,0 +1,62 @@+# SN74HC08++**Texas Instruments** · Logic Gate · SOIC-14++The SN74HC08 contains four independent 2-input AND gates in the 74HC CMOS logic family. Each output goes high only when both inputs are high, useful for gating clocks and enables, combining flags, and general glue logic.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | 1A | input | Channel 1, Input A. Logic input to gate 1 (buffered CMOS input). V_IH ≥ 3.15 V at V_CC = 4.5 V; input leakage ±0.1 µA typ. |+| 2 | 1B | input | Channel 1, Input B. Logic input to gate 1 (buffered CMOS input). |+| 3 | 1Y | output | Channel 1, Output Y. AND output: Y = 1A · 1B. Drives up to ±4 mA at V_CC = 4.5 V with V_OH ≥ 3.98 V / V_OL ≤ 0.26 V. |+| 4 | 2A | input | Channel 2, Input A. Logic input to gate 2. |+| 5 | 2B | input | Channel 2, Input B. Logic input to gate 2. |+| 6 | 2Y | output | Channel 2, Output Y. AND output: Y = 2A · 2B. |+| 7 | GND | power_in | Ground reference (0 V). Common return for V_CC. |+| 8 | 3Y | output | Channel 3, Output Y. AND output: Y = 3A · 3B. |+| 9 | 3A | input | Channel 3, Input A. Logic input to gate 3. |+| 10 | 3B | input | Channel 3, Input B. Logic input to gate 3. |+| 11 | 4Y | output | Channel 4, Output Y. AND output: Y = 4A · 4B. |+| 12 | 4A | input | Channel 4, Input A. Logic input to gate 4. |+| 13 | 4B | input | Channel 4, Input B. Logic input to gate 4. |+| 14 | VCC | power_in | Positive supply. Operating range 2 V to 6 V (recommended); absolute max 7 V. |++## Key specifications++| Parameter | Value |+|---|---|+| Type | Quad 2-input AND gate |+| Logic family | 74HC (CMOS) |+| Supply voltage | 2 V to 6 V |+| Output current | +-5.2 mA at VCC = 4.5 V |+| Propagation delay | 8 ns typ at 5 V |+| Operating temperature | -40 C to 85 C |++## Ordering variants++- `SN74HC08D`+- `SN74HC08DB`+- `SN74HC08N`+- `SN74HC08NS`+- `SN74HC08PW`+- `SN74HC08FK`+- `SN74HC08J`+- `SN74HC08W`++## CAD (KiCad official)++- Symbol: `sn74hc08.kicad_sym`+- Footprint: `sn74hc08.kicad_mod`+- 3D model: SOIC-14 body from KiCad `Package_SO/SOIC-14_3.9x8.7mm_P1.27mm`.++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/lit/ds/symlink/sn74hc08.pdf) (38 pp, sha256 `7c6d615e4510b91b`, 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/sn74hc08-datasheet.pdf)

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