GS3157-CR

@@ -0,0 +1,48 @@+# GS3157-CR++**Gainsil** · Analog Switches / Multiplexers · SC-70-6++GS3157-CR from Gainsil, in a SC-70-6. 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 | NO | passive | Normally-Open analog switch throw. Bidirectional analog signal pin; connected to COM when IN is high. Signal range Vss to VDD, ICOM rated to ±10mA in the RON test conditions. |+| 2 | VSS | power_in | Negative supply / ground reference for the analog switch. Typically tied to GND for single-supply operation; analog signals on NO/NC/COM must remain within Vss-0.5V to VDD+0.5V. |+| 3 | NC | passive | Normally-Closed analog switch throw. Bidirectional analog signal pin; connected to COM when IN is low. Signal range Vss to VDD. |+| 4 | COM | passive | Common pole of the SPDT switch. Bidirectional analog signal pin; routed to either NO or NC depending on the IN control state, with 4.0Ω typical on-resistance. |+| 5 | VDD | power_in | Positive supply input, +1.8V to +5.5V single-supply operation (absolute max +7.5V vs VSS). Decouple with a 0.1μF capacitor to VSS. Static supply current 1μA max. |+| 6 | IN | input | Digital control input selecting the switch path (TTL/CMOS compatible). Logic high (VINH ≥ 1.5V @ VS=5V) connects COM to NO; logic low (VINL ≤ 0.55V @ VS=5V) connects COM to NC. Tolerates drive up to 5.5V independent of VDD; input leakage ±1μA max. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Gainsil |+| Package | SC-70-6 |+| Category | Comm/UART |+| Pins | 6 |++## Ordering variants++Same part, different packaging or reel option.++- `GS3157-CR`+- `GS3157-CRTR`++## CAD (KiCad official)++- Symbol: `GS3157-CR`+- Footprint: `Package_TO_SOT_SMD:SOT-363_SC-70-6`+- 3D model: SC-70-6 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Gainsil datasheet](docs/gs3157-cr-datasheet.pdf) (9 pp, sha256 `3a067b18379d2152`, retrieved 2026-08-17, tier: lcsc)+- **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/gs3157-cr-datasheet.pdf)

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