STM813LM6F

STMicroelectronics · Supervisor And Reset ICs · SO-8

STM813LM6F from STMicroelectronics, in a SO-8. 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	MR	input	Active-low push-button reset input with 40 kΩ internal pull-up; asserts reset while low and for 200 ms (typical) after release.
2	VCC	power_in	Supply voltage input for 5 V supervisor with 1.0-5.5 V operating range and 40 μA (typical) quiescent current.
3	VSS	power_in	Ground reference.
4	PFI	input	Power-fail comparator input; triggers output PFO low when voltage falls below 1.25 V (typical) threshold.
5	PFO	output	Power-fail output (push-pull, active-low); goes low when PFI < 1.25 V (typical) with 2 μs propagation delay.
6	WDI	input	Watchdog input; requires edge transitions every 1.6 s (typical) to prevent watchdog timeout; function disabled by floating pin.
7	RST	output	Active-high reset output; asserts high when VCC < 4.63 V (typical) or manual reset input MR pulled low or watchdog timer times out; remains high for 200 ms (typical).
8	WDO	output	Watchdog output (push-pull, active-low); goes low on 1.6 s (typical) watchdog timeout or when VCC < 4.63 V (typical); returns high after WDI edge transition.

Key specifications

Parameter	Value
Manufacturer	STMicroelectronics
Package	SO-8
Category	Power Management (PMIC)
Pins	8

CAD (KiCad official)

Symbol: STM813LM6F
Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
3D model: SO-8 (KiCad packages3D, STEP)
3D model files: stm813lm6f-etched.step / stm813lm6f-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); stm813lm6f.step / stm813lm6f.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

Datasheet: STMicroelectronics datasheet (33 pp, sha256 8dd84b398c8ff01b, retrieved 2026-10-07, 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

# STM813LM6F

**STMicroelectronics** · Supervisor And Reset ICs · SO-8

STM813LM6F from STMicroelectronics, in a SO-8. 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 | MR | input | Active-low push-button reset input with 40 kΩ internal pull-up; asserts reset while low and for 200 ms (typical) after release. |
| 2 | VCC | power_in | Supply voltage input for 5 V supervisor with 1.0-5.5 V operating range and 40 μA (typical) quiescent current. |
| 3 | VSS | power_in | Ground reference. |
| 4 | PFI | input | Power-fail comparator input; triggers output PFO low when voltage falls below 1.25 V (typical) threshold. |
| 5 | PFO | output | Power-fail output (push-pull, active-low); goes low when PFI < 1.25 V (typical) with 2 μs propagation delay. |
| 6 | WDI | input | Watchdog input; requires edge transitions every 1.6 s (typical) to prevent watchdog timeout; function disabled by floating pin. |
| 7 | RST | output | Active-high reset output; asserts high when VCC < 4.63 V (typical) or manual reset input MR pulled low or watchdog timer times out; remains high for 200 ms (typical). |
| 8 | WDO | output | Watchdog output (push-pull, active-low); goes low on 1.6 s (typical) watchdog timeout or when VCC < 4.63 V (typical); returns high after WDI edge transition. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | SO-8 |
| Category | Power Management (PMIC) |
| Pins | 8 |

## CAD (KiCad official)

- Symbol: `STM813LM6F`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SO-8 (KiCad packages3D, STEP)
- 3D model files: `stm813lm6f-etched.step` / `stm813lm6f-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `stm813lm6f.step` / `stm813lm6f.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/8588939574781890560) (33 pp, sha256 `8dd84b398c8ff01b`, retrieved 2026-10-07, 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/stm813lm6f-datasheet.pdf)