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STM708M6F

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by Ray

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

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Contents

README

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STM708M6F

STMicroelectronics · Supervisor and Reset ICs · SOP-8

STM708M6F from STMicroelectronics, 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 Active-low push-button/manual reset input. A logic low on MR asserts the reset outputs; reset remains asserted while MR is low and for trec (~200 ms typ) after MR returns high. Has an internal pull-up; leave open if unused.
2 VCC power_in 5 V supply voltage input monitored by the internal precision reset comparator (VRST = 4.25 V to 4.50 V for STM708). Bypass with 0.1 µF ceramic to VSS.
3 VSS power_in Ground / negative supply reference (0 V).
4 PFI input Power-fail comparator input. When PFI drops below the internal threshold VPFI (~1.25 V), PFO is driven low; otherwise PFO stays high. Typically driven from a resistor divider tied to the unregulated pre-regulator rail to provide early warning of impending power loss. Connect to ground if unused.
5 PFO output Active-low power-fail output (push-pull). Goes low when PFI is below VPFI, otherwise remains high. Typically routed to a microprocessor NMI/IRQ. Leave open if unused.
6 NC unconnected No internal connection. May be left floating or tied to ground.
7 RST output Active-low reset output. Pulses low when triggered and stays low whenever VCC is below the reset threshold or MR is asserted. Remains low for trec (~200 ms typ) after VCC rises above the reset threshold or MR returns high.
8 RST output Active-high reset output (complementary to pin 7). Goes high when triggered and stays high whenever VCC is below the reset threshold or MR is asserted. Stays high for trec after VCC rises above the reset threshold or MR returns high.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

  • STM708M6F
  • STM708M6FM7F
  • STM708M6FDS6F

CAD (KiCad official)

  • Symbol: STM708M6F
  • 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: STMicroelectronics datasheet (33 pp, sha256 8dd84b398c8ff01b, 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