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MAX706M

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by Ray

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

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Contents

README

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MAX706M

HGSEMI · Supervisor and Reset ICs · SOP-8

MAX706M from HGSEMI, in a SOP-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 Manual RESET input (active LOW). Internal 250µA pull-up to Vcc; can be driven by TTL/CMOS logic or shorted to GND via a pushbutton. Asserting MR triggers a reset pulse.
2 VCC power_in +5V power supply input. Operating range 1.2V to 5.5V; typical Icc = 75µA (max 140µA).
3 GND power_in Ground reference for all signals.
4 PFI input Power-fail voltage monitor input to the auxiliary comparator (1.25V threshold). Typically driven by an external resistor divider from the monitored rail. Connect to GND or VCC if unused.
5 PFO output Power-fail output (active LOW, open output that sinks current). Goes LOW when PFI drops below the 1.25V threshold. Sinks 3.2mA at ≤0.4V.
6 WDI input Watchdog input. Any HIGH or LOW transition within 1.6s (typ) prevents WDO from asserting. Float or three-state to disable the watchdog. Cleared on RESET, three-state, or edge at WDI.
7 RESET output Active-LOW reset output. Pulses LOW for ~300ms (200ms typ, 140-280ms) when Vcc crosses the reset threshold (MAX706: 4.4V) or MR is asserted. Guaranteed valid down to Vcc = 1.2V.
8 WDO output Watchdog output (active LOW). Pulls LOW when the internal 1.6s watchdog times out and remains LOW while Vcc is below the reset threshold. Returns HIGH with no delay once Vcc exceeds the reset threshold and the watchdog is cleared.

Key specifications

Parameter Value
Manufacturer HGSEMI
Package SOP-8
Category PMIC
Pins 8

Ordering variants

Same part, different packaging or reel option.

  • MAX706MM/TR
  • MAX706MMTR
  • MAX706MN
  • MAX706MMM/TR
  • MAX706MMMTR
  • MAX706MDQ3/TR

CAD (KiCad official)

  • Symbol: MAX706M
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOP-8 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: HGSEMI datasheet (12 pp, sha256 36cf80d4bfe2f01a, 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