SN74HC14

@@ -0,0 +1,58 @@+# SN74HC14++**Texas Instruments** · Hex Schmitt-trigger inverter · SOIC-14++Hex Schmitt-trigger inverter in a SOIC-14 package: six independent inverters, each Y = /A, with Schmitt-trigger inputs that add hysteresis (typ 0.9 V at VCC = 4.5 V). The hysteresis cleans up slow, noisy, or bouncing edges, so it is the default for debouncing, squaring up sensor signals, simple RC oscillators, and edge conditioning. Runs 2-6 V.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | 1A | input | Channel 1 Schmitt-trigger input (inverter A1). CMOS input, VIH/VIL set by VT+/VT- hysteresis (typ VT+ 2.5 V, VT- 1.6 V @ Vcc=4.5 V). |+| 2 | 1Y | output | Channel 1 inverter output (Y = /1A). CMOS push-pull, IOH/IOL up to 5.2 mA @ Vcc=6 V. |+| 3 | 2A | input | Channel 2 Schmitt-trigger input (inverter A2). |+| 4 | 2Y | output | Channel 2 inverter output (Y = /2A). CMOS push-pull. |+| 5 | 3A | input | Channel 3 Schmitt-trigger input (inverter A3). |+| 6 | 3Y | output | Channel 3 inverter output (Y = /3A). |+| 7 | GND | power_in | Ground reference (0 V). |+| 8 | 4Y | output | Channel 4 inverter output (Y = /4A). |+| 9 | 4A | input | Channel 4 Schmitt-trigger input (inverter A4). |+| 10 | 5Y | output | Channel 5 inverter output (Y = /5A). |+| 11 | 5A | input | Channel 5 Schmitt-trigger input (inverter A5). |+| 12 | 6Y | output | Channel 6 inverter output (Y = /6A). |+| 13 | 6A | input | Channel 6 Schmitt-trigger input (inverter A6). |+| 14 | VCC | power_in | Positive supply. Recommended 2 V to 6 V (nom 5 V); absolute max 7 V. Bypass with 100 nF to GND close to the pin. |++## Key specifications++| Parameter | Value |+|---|---|+| Type | Hex Schmitt-trigger inverter |+| Function | Y = /A (6 independent) |+| Hysteresis | ~0.9 V typ @ VCC = 4.5 V |+| Supply voltage | 2-6 V |+| Logic family | HC (high-speed CMOS) |+| Channels | 6 inverters |+| Package | SOIC-14 |+| Body (L×W×H) | 8.65 × 3.9 × 1.75 mm |++## Ordering variants++- `SN74HC14D (SOIC-14, tube)`+- `SN74HC14DR (SOIC-14, tape & reel)`++## CAD (KiCad official)++- Symbol: `74xx:74HC14`+- Footprint: `Package_SO:SOIC-14_3.9x8.7mm_P1.27mm`+- 3D model: SOIC-14 (KiCad packages3D)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/lit/ds/symlink/sn74hc14.pdf) (38 pp, sha256 `777ed9379ae69f81`, retrieved 2026-08-17, tier: manufacturer)+- **Extractor:** `ds2sf` (Claude) — every pin and dimension is cited to a datasheet page; refuses to fabricate.+- **CAD:** KiCad official libraries (CC-BY-SA 4.0).++[Datasheet PDF](docs/sn74hc14-datasheet.pdf)

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