component
GS3221-CR
Public Made by Adomby adom
Gainsil Analog Switches / Multiplexers, SC-70-6. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+47@@ -0,0 +1,47 @@+# GS3221-CR++**Gainsil** · Analog Switches / Multiplexers · SC-70-6++GS3221-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 terminal. Bidirectional analog signal path connected to COM when IN is high. Signal range is VSS to VDD; on-resistance is 1.5Ω typ. with ICOM = -10 mA. |+| 2 | VSS | power_in | Negative supply / ground reference for the analog switch. Typically tied to GND for single-supply operation. VDD-VSS supply range 1.8V to 5.5V (absolute max 7.5V). |+| 3 | NC | passive | Normally-Closed analog switch terminal. Bidirectional analog signal path connected to COM when IN is low. Signal range is VSS to VDD; on-resistance is 1.5Ω typ. |+| 4 | COM | passive | Common analog switch terminal (the SPDT pole). Routed to NO when IN=high and to NC when IN=low, with a break-before-make transition (~23 ns TBBM at VS=5V). |+| 5 | VDD | power_in | Positive supply input, +1.8V to +5.5V (absolute max +7.5V vs VSS). Bypass with a 0.1 µF ceramic capacitor to VSS. Supply current is 1 µA max. |+| 6 | IN | input | Digital control input selecting the switch path (high → COM-NO, low → COM-NC). TTL/CMOS compatible: VIH ≥ 1.5V at VS=5V (0.9V at VS=3V); VIL ≤ 0.55V at VS=5V. Tolerates drive up to 5.5V independent of VDD; input leakage ±1 µA max. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Gainsil |+| Package | SC-70-6 |+| Category | Comm/UART |+| Pins | 6 |++## Ordering variants++- `GS3221-CR`+- `GS3221-CRTR`+- `GS3221-CRGS3221-TR`++## CAD (KiCad official)++- Symbol: `GS3221-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/gs3221-cr-datasheet.pdf) (9 pp, sha256 `4287cb24d7821606`, 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/gs3221-cr-datasheet.pdf)
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