SN74LVC1G3157DC

@@ -0,0 +1,48 @@+# SN74LVC1G3157DC++**lingxingic SN74LVC1G3157DC LX** · Analog Switches, Multiplexers · SOT-363++SN74LVC1G3157DC from lingxingic SN74LVC1G3157DC LX, in a SOT-363. 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 | Y1 | bidirectional | Independent analog I/O 1. Connected to the common Z pin through the analog switch when S = H. Signal range 0 V to VCC; RON ≈ 6.5 Ω @ VCC=3.3 V. |+| 2 | GND | power_in | Ground reference (0 V). Common return for supply and analog signals. |+| 3 | Y0 | bidirectional | Independent analog I/O 0. Connected to the common Z pin through the analog switch when S = L. Signal range 0 V to VCC; RON ≈ 6.5 Ω @ VCC=3.3 V. |+| 4 | Z | bidirectional | Common analog I/O. Routed to either Y0 (S=L) or Y1 (S=H) through the analog switch; supports bidirectional analog or digital signals from 0 V to VCC and up to 32 mA switch current. |+| 5 | VCC | power_in | Positive supply. Recommended operating range 1.65 V to 5.5 V (absolute max 6.5 V). Decouple to GND with a 0.1 µF ceramic capacitor placed close to the pin. |+| 6 | S | input | Digital select input with Schmitt-trigger action. S=L connects Z↔Y0; S=H connects Z↔Y1. TTL-compatible at 3.3 V; input tolerates up to 5.5 V regardless of VCC. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | lingxingic SN74LVC1G3157DC LX |+| Package | SOT-363 |+| Category | Interface |+| Pins | 6 |++## Ordering variants++- `SN74LVC1G3157DCDC`+- `SN74LVC1G3157DCDB`+- `SN74LVC1G3157DCDR`++## CAD (KiCad official)++- Symbol: `SN74LVC1G3157DC`+- Footprint: `Package_TO_SOT_SMD:SOT-363_SC-70-6`+- 3D model: SOT-363 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [lingxingic SN74LVC1G3157DC LX datasheet](docs/sn74lvc1g3157dc-datasheet.pdf) (23 pp, sha256 `e159eb3e0aeb7721`, retrieved 2026-08-17, 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:** `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/sn74lvc1g3157dc-datasheet.pdf)

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