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STM1818SWX7F
Public Made by Adomby adom
STMicroelectronics Supervisor And Reset ICs, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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STM1818SWX7F
STMicroelectronics · Supervisor And Reset ICs · SOT-23
STM1818SWX7F from STMicroelectronics, in a SOT-23. 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 | bidirectional | Open-drain active-low reset output with internal 5.5 kΩ pull-up that asserts when VCC drops below 2.88 V or when externally pulled low for minimum 1.5 µs, remaining asserted for minimum 100 ms after VCC recovery or external release. |
| 2 | VCC | power_in | Supply voltage input with 1.0 to 5.5 V operating range; monitored for reset assertion at 2.88 V threshold with ±2.5% accuracy from -40 to +105 °C. |
| 3 | VSS | power_in | Ground reference providing voltage baseline for power supply voltage monitoring and reset threshold voltage comparison. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | SOT-23 |
| Category | Power Management (PMIC) |
| Pins | 3 |
CAD (KiCad official)
- Symbol:
STM1818SWX7F - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
stm1818swx7f-etched.step/stm1818swx7f-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);stm1818swx7f.step/stm1818swx7f.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: STMicroelectronics datasheet (25 pp, sha256
92bdec36422e0716, retrieved 2026-10-06, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-5-5(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).
# STM1818SWX7F
**STMicroelectronics** · Supervisor And Reset ICs · SOT-23
STM1818SWX7F from STMicroelectronics, in a SOT-23. 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 | bidirectional | Open-drain active-low reset output with internal 5.5 kΩ pull-up that asserts when VCC drops below 2.88 V or when externally pulled low for minimum 1.5 µs, remaining asserted for minimum 100 ms after VCC recovery or external release. |
| 2 | VCC | power_in | Supply voltage input with 1.0 to 5.5 V operating range; monitored for reset assertion at 2.88 V threshold with ±2.5% accuracy from -40 to +105 °C. |
| 3 | VSS | power_in | Ground reference providing voltage baseline for power supply voltage monitoring and reset threshold voltage comparison. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | SOT-23 |
| Category | Power Management (PMIC) |
| Pins | 3 |
## CAD (KiCad official)
- Symbol: `STM1818SWX7F`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `stm1818swx7f-etched.step` / `stm1818swx7f-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `stm1818swx7f.step` / `stm1818swx7f.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/8586189455413137408) (25 pp, sha256 `92bdec36422e0716`, retrieved 2026-10-06, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-sonnet-5-5` (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/stm1818swx7f-datasheet.pdf)