STM809RWX6F
Public Made by Adomby adom
STMicroelectronics Supervisor and Reset ICs, SOT-23. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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README
markdownSTM809RWX6F
STMicroelectronics · Supervisor and Reset ICs · SOT-23
STM809RWX6F from STMicroelectronics, in a SOT-23. 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 | VSS | power_in | Ground reference (0 V) for the supervisor. Tie directly to system ground; a 0.1 µF bypass capacitor between VCC and VSS close to the device is recommended for transient immunity. |
| 2 | /RST | output | Active-low, push-pull reset output for the STM809. Driven low whenever VCC is below the reset threshold (nominally 3.00 V for the 'R' option) and remains asserted for trec (≥140 ms) after VCC rises back above threshold. Both sources and sinks current; guaranteed valid down to VCC = 1.0 V (add a 100 kΩ pull-down if valid state is required down to 0 V). |
| 3 | VCC | power_in | Monitored supply voltage input, nominal 3.0 V for the 'R' variant (absolute max −0.3 V to +6.0 V). This is also the device supply; place a 0.1 µF bypass capacitor as close as possible to this pin to VSS to reject negative-going transients. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | SOT-23 |
| Category | PMIC |
| Pins | 3 |
Ordering variants
Same part, different packaging or reel option.
STM809RWX6F
CAD (KiCad official)
- Symbol:
STM809RWX6F - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
stm809rwx6f-etched.step/stm809rwx6f-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);stm809rwx6f.step/stm809rwx6f.glbare the bare package body.
3D model downloads
Two STEP files. Same geometry, different body top:
| File | Size | Use it when |
|---|---|---|
stm809rwx6f.step |
59 KB | You want the bare part, or you mark your own boards. |
stm809rwx6f-etched.step |
2.1 MB | You want the part with STM809RWX6F already on it. |
The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 516 faces against 69 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: STMicroelectronics datasheet (21 pp, sha256
24f3f88facdeb210, retrieved 2026-08-17, tier: manufacturer) - 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).