component
STM6821MWY6F
Public Made by Adomby adom
STMicroelectronics Supervisor And Reset ICs, SOT-23-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+41@@ -0,0 +1,41 @@+# STM6821MWY6F++**STMicroelectronics** · Supervisor And Reset ICs · SOT-23-5++STM6821MWY6F from STMicroelectronics, in a SOT-23-5. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | RST | output | Active-high push-pull reset output (inverse of RST); asserted high whenever VCC falls below VRST (4.270-4.490 V for M-grade), watchdog timeout occurs, or MR is logic low; VOH ≥ 0.8 VCC with ISOURCE up to 800 µA (VCC ≥ 4.25 V); remains asserted for trec (140-280 ms, typ. 200 ms) after fault clears. |+| 2 | VSS | power_in | Ground (0 V supply return). |+| 3 | MR | input | Active-low manual/push-button reset input with internal 52 kΩ (typ.) pull-up resistor; a logic low asserts the reset output and holds it for trec after MR returns high; VIL < 0.3 VCC (VRST < 4.0 V); minimum pulse width 1 µs; may be left open if unused. |+| 4 | WDI | input | Watchdog input; if held static (high or low) for ≥ tWD (typ. 1.6 s, range 1.12-2.24 s) the watchdog timer expires and reset is asserted; timer clears on any rising or falling edge or while reset is asserted; WDI = VCC draws up to 160 µA (time-average); float or tristate to disable watchdog (max leakage 10 µA, max load capacitance 200 pF). |+| 5 | VCC | power_in | Supply voltage, 1.0 to 5.5 V operating range; quiescent ICC 4 µA typ. / 12 µA max (MR and WDI unconnected, VCC < 3.6 V); reset output guaranteed valid down to VCC = 1.0 V (TA = 0 to 85 °C). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | STMicroelectronics |+| Package | SOT-23-5 |+| Category | Power Management (PMIC) |+| Pins | 5 |++## CAD (KiCad official)++- Symbol: `STM6821MWY6F`+- Footprint: `Package_TO_SOT_SMD:SOT-23-5`+- 3D model: SOT-23-5 (KiCad packages3D, STEP)+- 3D model files: `stm6821mwy6f-etched.step` / `stm6821mwy6f-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `stm6821mwy6f.step` / `stm6821mwy6f.glb` are the bare package body.++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [STMicroelectronics datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588923284075253761) (31 pp, sha256 `ba50f0fd6706f830`, retrieved 2026-09-27, tier: lcsc)+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.2`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-sonnet-4-6` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.+- **CAD:** KiCad official libraries (CC-BY-SA 4.0).++[Datasheet PDF](docs/stm6821mwy6f-datasheet.pdf)
page.jsonadded+138@@ -0,0 +1,138 @@+{+ "slug": "stm6821mwy6f",+ "version": "0.1.0",+ "type": "component",+ "description": "STMicroelectronics Supervisor And Reset ICs, SOT-23-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "power management (pmic)",+ "stm6821mwy6f",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "stm6821mwy6f.kicad_sym",+ "stm6821mwy6f.kicad_mod",+ "stm6821mwy6f.glb",+ "stm6821mwy6f.step",+ "stm6821mwy6f.lbr",+ "docs/hero.png",+ "docs/stm6821mwy6f-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html"+ ],+ "component": {+ "mpn": "STM6821MWY6F",+ "manufacturer": "STMicroelectronics",+ "package": "SOT-23-5",+ "pin_count": 5,+ "category": "Power Management (PMIC)",+ "subcategory": "Supervisor And Reset ICs",+ "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588923284075253761",+ "parts": {+ "symbol": "stm6821mwy6f.kicad_sym",+ "footprint": "stm6821mwy6f.kicad_mod",+ "model_3d": "stm6821mwy6f-etched.glb",+ "model_3d_plain": "stm6821mwy6f.glb",+ "model_3d_step": "stm6821mwy6f-etched.step",+ "model_3d_step_plain": "stm6821mwy6f.step",+ "lbr": "stm6821mwy6f.lbr"+ },+ "distributor_links": {+ "lcsc": "C2069151",+ "digikey": "2156-STM6821MWY6F-ND",+ "mouser": "511-STM6821MWY6F"+ },+ "distributor_check": {+ "checked_at": "2026-09-27T10:15:28Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "2156-STM6821MWY6F-ND",+ "status": "found",+ "lifecycle": "Active"+ },+ "mouser": {+ "pn": "511-STM6821MWY6F",+ "status": "found"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "RST",+ "type": "output",+ "description": "Active-high push-pull reset output (inverse of RST); asserted high whenever VCC falls below VRST (4.270-4.490 V for M-grade), watchdog timeout occurs, or MR is logic low; VOH ≥ 0.8 VCC with ISOURCE up to 800 µA (VCC ≥ 4.25 V); remains asserted for trec (140-280 ms, typ. 200 ms) after fault clears."+ },+ {+ "number": "2",+ "name": "VSS",+ "type": "power_in",+ "description": "Ground (0 V supply return)."+ },+ {+ "number": "3",+ "name": "MR",+ "type": "input",+ "description": "Active-low manual/push-button reset input with internal 52 kΩ (typ.) pull-up resistor; a logic low asserts the reset output and holds it for trec after MR returns high; VIL < 0.3 VCC (VRST < 4.0 V); minimum pulse width 1 µs; may be left open if unused."+ },+ {+ "number": "4",+ "name": "WDI",+ "type": "input",+ "description": "Watchdog input; if held static (high or low) for ≥ tWD (typ. 1.6 s, range 1.12-2.24 s) the watchdog timer expires and reset is asserted; timer clears on any rising or falling edge or while reset is asserted; WDI = VCC draws up to 160 µA (time-average); float or tristate to disable watchdog (max leakage 10 µA, max load capacitance 200 pF)."+ },+ {+ "number": "5",+ "name": "VCC",+ "type": "power_in",+ "description": "Supply voltage, 1.0 to 5.5 V operating range; quiescent ICC 4 µA typ. / 12 µA max (MR and WDI unconnected, VCC < 3.6 V); reset output guaranteed valid down to VCC = 1.0 V (TA = 0 to 85 °C)."+ }+ ],+ "provenance": {+ "extractor": "extract_pins 0.2",+ "factory_chain": {+ "factory": "2.0.0",+ "extractor": "extract_pins 0.2",+ "primary_model": "claude-haiku-4-5-20251001",+ "primary_mode": "text",+ "consensus_model": "claude-sonnet-4-6",+ "consensus": "agreed",+ "guards": "pin_guards 0.1: passed",+ "guard_notes": [],+ "pages_sent": 31,+ "cost_usd": 0.3782,+ "at": "2026-09-27T10:15:12"+ },+ "datasheet": {+ "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588923284075253761",+ "pages": 31,+ "sha256": "ba50f0fd6706f830",+ "source_tier": "lcsc"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 5,+ "described": 5,+ "cites_pages": true,+ "refuses_to_fabricate": true+ }+ },+ "viewers": {+ "symbol": "viewers/symbol.html",+ "footprint": "viewers/footprint.html"+ }+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}