# SGM706B-SXS8G

**SGMICRO** · Logic Gates · SOIC-8

SGM706B-SXS8G from SGMICRO, in a SOIC-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 | nMR | input | Active-low manual reset input with internal 234μA (VCC = +5V) pull-up current, drivable by CMOS/TTL logic or a switch to GND; if not used, leave open or connect to VCC. |
| 2 | VCC | power_in | Supply voltage pin; operating range 1.0V to 5.5V (absolute maximum -0.3V to 6.0V). |
| 3 | GND | power_in | Ground. |
| 4 | PFI | input | Power-fail voltage monitor input; nPFO goes low when PFI is below the 1.25V threshold, and if not used connect PFI to GND or VCC. |
| 5 | nPFO | output | Power-fail monitor output that goes low when PFI is lower than 1.25V and remains high when PFI is above 1.25V. |
| 6 | WDI | input | Watchdog input; if it stays high or low longer than the 1.6s (TYP) timeout the watchdog expires and nWDO goes low, and the watchdog is disabled if WDI is left open or connected to a three-stated buffer output. |
| 7 | nRESET | output | Active-low reset output delivering a 200ms (TYP) low pulse, remaining low while VCC is below the reset threshold or nMR is low, and guaranteed valid at VCC = 1V. |
| 8 | nWDO | output | Watchdog output that goes low when WDI stays idle for the 1.6s (TYP) timeout, has no minimum pulse width, and goes high immediately once VCC is above the reset threshold. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | SGMICRO |
| Package | SOIC-8 |
| Category | Logic |
| Pins | 8 |

## CAD (KiCad official)

- Symbol: `SGM706B-SXS8G`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files: `sgm706b-sxs8g-etched.step` / `sgm706b-sxs8g-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sgm706b-sxs8g.step` / `sgm706b-sxs8g.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [SGMICRO datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589838385671278592) (16 pp, sha256 `23b5a0ecd6ed9a2d`, retrieved 2026-10-09, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (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/sgm706b-sxs8g-datasheet.pdf)