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CN706R

ShangHai Consonance Elec · Supervisor and Reset ICs · SOP-8

CN706R from ShangHai Consonance Elec, 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. Internally pulled up to VCC; a low level on this pin (below the MR threshold, typically 0.8V at VCC=5V) forces RESET/RESET assertion. TTL/CMOS compatible; can be driven by an open-drain output or a pushbutton to GND.
2 VCC power_in Supply voltage input. Operating range 1.15V (guaranteed data) up to 5.5V absolute max 6.0V. Typical operating current for CN706X is 52uA (max 105uA) at VCC=5V.
3 GND power_in Ground reference (0V). Common return for logic and analog reference circuitry.
4 PFI input Power-Fail Input to the on-chip comparator. Compared against the internal 1.22V (typ) reference; when PFI drops below the threshold, the PFO output asserts low. Input bias current is essentially 0 (high-impedance).
5 PFO output Power-Fail Output, active low. Push-pull output that goes low when PFI is below the 1.22V reference and high when PFI is above it. Drives VOH >= VCC-1.2V at 800uA source and VOL <= 0.3V at 3.2mA sink.
6 WDI input Watchdog Input. Must be toggled by the host MCU within the watchdog timeout period (typ 1.6s) or WDO asserts low. Leaving WDI floating or tied to a static level disables the watchdog function. Internal pull to mid-supply; input impedance ~250K when VCC>VRES.
7 RESET output Active-low reset output. Asserted low when VCC falls below the CN706R reset threshold (VRES typ 2.63V, min 2.55V, max 2.70V), when MR is pulled low, or when the watchdog times out. Remains low for a minimum reset active period (typ 200ms) after VCC returns above the threshold. Push-pull output.
8 WDO output Watchdog Output, active low. Asserts low when the WDI input has not been toggled within the watchdog timeout window (typ 1.6s) or when VCC is below the reset threshold. Push-pull, VOH >= VCC-1.2V at 800uA, VOL <= 0.3V at 3.2mA.

Key specifications

Parameter Value
Manufacturer ShangHai Consonance Elec
Package SOP-8
Category PMIC
Pins 8

Ordering variants

Same part, different packaging or reel option.

  • CN706RS
  • CN706RP

CAD (KiCad official)

  • Symbol: CN706R
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOP-8 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
cn706r.step 122 KB You want the bare part, or you mark your own boards.
cn706r-etched.step 1.5 MB You want the part with CN706R already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 369 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: ShangHai Consonance Elec datasheet (14 pp, sha256 fe7cca14ea02af6e, 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