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max706csa

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by Ray

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

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MAX706CSA

MSKSEMI · Supervisor and Reset ICs · SOP-8

MAX706CSA from MSKSEMI, 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 manual reset input. A logic low on this pin asserts !RESET regardless of VCC. Internally pulled up to VCC through a 20kΩ (typ) resistor; minimum pulse width 150ns (4.5V<VCC<5.5V).
2 VCC power_in Positive supply input. Operating range 4.8V to 5.5V for the 706 variant; supply current ICC ≈ 75µA typical (140µA max).
3 GND power_in Ground reference (0V) for the device.
4 PFI input Power-fail comparator input (non-inverting side referenced to internal 1.25V ± 0.05V reference). When PFI falls below 1.25V, !PFO asserts low. Input current ±25nA max. Typically used with an external resistor divider from the monitored rail; tie to VCC or GND if unused.
5 !PFO output Active-low power-fail comparator output. Goes low when PFI drops below the 1.25V reference. Push-pull output: VOL ≤ 0.4V @ 3.2mA sink, VOH ≥ VCC−1.5V @ 800µA source (4.5V<VCC<5.5V).
6 WDI input Watchdog input. If WDI remains high or low longer than the watchdog timeout tWD (≈1.6s typ), !WDO asserts and a reset is generated. Leave floating to disable the watchdog function. Minimum pulse width 50ns (4.5V<VCC<5.5V).
7 !WDO output Active-low watchdog output. Asserts low when the watchdog timer expires (no WDI transition within tWD). Push-pull output: VOL ≤ 0.4V @ 1.2mA sink, VOH ≥ VCC−1.5V @ 800µA source (4.5V<VCC<5.5V).
8 !RESET output Active-low reset output. Asserts when VCC falls below the reset threshold VRT (4.40V typ for 706) or when !MR is pulled low, and remains asserted for tRS ≈ 200ms after VCC returns above VRT. Push-pull output: VOL ≤ 0.4V @ 3.2mA sink, VOH ≥ VCC−1.5V @ 800µA source (4.5V<VCC<5.5V).

Key specifications

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

Ordering variants

  • MAX706CSA
  • MAX706CSA/T
  • MAX706CSA706ESA
  • MAX706CSA706ESA/T
  • MAX706CSA706CPA
  • MAX706CSA706EPA
  • MAX706CSA706CUA
  • MAX706CSA706CUA/T

CAD (KiCad official)

  • Symbol: MAX706CSA
  • 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: MSKSEMI datasheet (None pp, sha256 a5d1d68be0f7c959, retrieved 2026-08-17, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • 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

Symbol & Footprint

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PCB Footprint

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Datasheet

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