component

SGM706-SYS8G

Public Unreviewed

by Ray

SGMICRO Supervisor and Reset ICs, SOIC-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.

componentpmicsgm706-sys8g
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity

3D Model

Open in new tab ↗
Loads on click. Unloads only if this page sits in the background.

Symbol & Footprint

Schematic Symbol

Open full view ↗
Loads on click. Unloads only if this page sits in the background.

PCB Footprint

Open full view ↗
Loads on click. Unloads only if this page sits in the background.

Datasheet

Open in new tab ↗
Loads on click. Unloads only if this page sits in the background.
Download PDF
Contents

README

markdown

SGM706-SYS8G

SGMICRO · Supervisor and Reset ICs · SOIC-8

SGM706-SYS8G from SGMICRO, in a SOIC-8. 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 MR input Active-low Manual-Reset Input. Triggers a reset pulse when pulled below 0.8V. Has an internal ~250µA (VCC = +5V) pull-up current, so it can be driven by TTL/CMOS or shorted to GND via a pushbutton switch.
2 VCC power_in Power supply voltage input that is monitored by the supervisor. Operating range 1.0V to 5.5V; absolute max 6.0V. Typical supply current 50µA (150µA max).
3 GND power_in 0V ground reference for all signals.
4 PFI input Power-Fail Voltage Monitor Input. Internally compared against a 1.25V reference; when PFI < 1.25V, /PFO goes low. Tie to GND or VCC when unused. Input current ~0.2nA.
5 PFO output Active-low Power-Fail Output. Sinks current (up to 3.2mA at 0.4V) when PFI < 1.25V; otherwise stays high (VOH ≥ VCC-1.5V at 800µA source). Typically drives a µP NMI/interrupt.
6 WDI input Watchdog Input. Must see a rising or falling edge within 1.6s (typ) or /WDO asserts. Floating WDI or driving it to a high-impedance three-state disables the watchdog. Input threshold: VIL ≤ 0.8V, VIH ≥ 3.5V at VCC=5V; minimum pulse width 70ns.
7 RESET output Active-low Reset Output. Pulses low for 200ms (120-280ms) when triggered and stays low while VCC is below the reset threshold (2.93V for SGM706-S variant). Guaranteed valid down to VCC = 1V. Push-pull: VOH ≥ VCC-1.5V at 800µA source, VOL ≤ 0.4V at 3.2mA sink.
8 WDO output Active-low Watchdog Output. Pulls low when the internal 1.6s watchdog timer expires without a WDI transition, and while VCC is below the reset threshold. Unlike /RESET, /WDO has no minimum pulse width and goes high as soon as VCC recovers. VOL ≤ 0.4V at 1.2mA sink.

Key specifications

Parameter Value
Manufacturer SGMICRO
Package SOIC-8
Category PMIC
Pins 8

Ordering variants

Same part, different packaging or reel option.

  • SGM706-SYS8G/TR
  • SGM706-SYS8GLYS8G/TR
  • SGM706-SYS8GMYS8G/TR
  • SGM706-SYS8GJYS8G/TR
  • SGM706-SYS8GTYS8G/TR
  • SGM706-SYS8GRYS8G/TR

CAD (KiCad official)

  • Symbol: SGM706-SYS8G
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
sgm706-sys8g.step 122 KB You want the bare part, or you mark your own boards.
sgm706-sys8g-etched.step 2.8 MB You want the part with SGM706-SYS8G already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 658 faces against 147 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: SGMICRO datasheet (12 pp, sha256 7de9c6e6511b1d05, retrieved 2026-08-17, tier: lcsc)
  • 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).

Datasheet PDF