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CBM809MST3
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Corebai Microelectronics Supervisor and Reset ICs, SOT-23-3. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+46@@ -0,0 +1,46 @@+# CBM809MST3++**Corebai Microelectronics** · Supervisor and Reset ICs · SOT-23-3++CBM809MST3 from Corebai Microelectronics, in a SOT-23-3. 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 | GND | power_in | Ground reference. All signals are referenced to this pin (0 V). |+| 2 | RESET | output | Active-low push-pull reset output (RESET-bar). Driven low while VCC is below the 4.38 V reset threshold and held low for a typical 240 ms after VCC rises back above VTH. VOL <= 0.4 V at ISINK = 3.2 mA; VOH >= VCC-1.5 V at ISOURCE = 800 uA. |+| 3 | VCC | power_in | Monitored supply voltage input. Operating range 1.0 V to 5.5 V (absolute max -0.3 V to +6 V). Typical supply current 17 uA (max 30 uA) for VCC < 3.6 V. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Corebai Microelectronics |+| Package | SOT-23-3 |+| Category | PMIC |+| Pins | 3 |++## Ordering variants++Same part, different packaging or reel option.++- `CBM809MST3`+- `CBM809MST3MSC3`++## CAD (KiCad official)++- Symbol: `CBM809MST3`+- Footprint: `Package_TO_SOT_SMD:SOT-23-3`+- 3D model: SOT-23-3 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Corebai Microelectronics datasheet](docs/cbm809mst3-datasheet.pdf) (13 pp, sha256 `c34b15cd24dfc9a6`, 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/cbm809mst3-datasheet.pdf)
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