CN706S

{
  "schema_version": 1,
  "type": "component",
  "slug": "cn706s",
  "title": "CN706S",
  "brief": "ShangHai Consonance Elec Supervisor and Reset ICs, SOP-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "pmic",
    "cn706s"
  ],
  "component": {
    "mpn": "CN706S",
    "manufacturer": "ShangHai Consonance Elec",
    "package": "SOP-8",
    "pin_count": 8,
    "category": "PMIC",
    "subcategory": "Supervisor and Reset ICs",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/76a067a7ed1b51e5336177399b2ad5f2.pdf",
    "parts": {
      "symbol": "cn706s.kicad_sym",
      "footprint": "cn706s.kicad_mod",
      "model_3d": "cn706s-etched.glb",
      "model_3d_plain": "cn706s.glb",
      "model_3d_step": "cn706s-etched.step",
      "model_3d_step_plain": "cn706s.step",
      "lbr": "cn706s.lbr"
    },
    "distributor_links": {
      "lcsc": "C840510"
    },
    "pins": [
      {
        "number": "1",
        "name": "MR",
        "type": "input",
        "description": "Manual reset input, active low. An internal pull-up to VCC lets the pin float high; pulling MR below the input-low threshold (approx 0.8 V at VCC=5V, 0.16*VCC at VCC<4.5V) asserts RESET for the reset timeout period (typ 200 ms). TTL/CMOS compatible; can be driven by a push-button to GND."
      },
      {
        "number": "2",
        "name": "VCC",
        "type": "power_in",
        "description": "Positive supply input, operating range 1.15 V to 5.5 V. Monitored by the internal reset comparator against the CN706S 2.93 V threshold (typ). Bypass with a local ceramic capacitor to GND."
      },
      {
        "number": "3",
        "name": "GND",
        "type": "power_in",
        "description": "Ground / 0 V reference for the supervisor and all logic outputs."
      },
      {
        "number": "4",
        "name": "PFI",
        "type": "input",
        "description": "Power-fail comparator input. Compared against an internal 1.22 V reference; when PFI drops below 1.22 V the PFO output is driven low. Typically driven from a resistor divider off an unregulated rail to give an early brown-out warning. High input impedance (IPFI approx 0)."
      },
      {
        "number": "5",
        "name": "PFO",
        "type": "output",
        "description": "Power-fail output, active low. Push-pull CMOS output that asserts low whenever PFI is below the 1.22 V reference and releases high (VCC-1.2 V at ISOURCE=800 uA) otherwise. Independent of the reset generator, so it can be used as an early NMI/interrupt to the MCU."
      },
      {
        "number": "6",
        "name": "WDI",
        "type": "input",
        "description": "Watchdog input. Must be toggled (rising or falling edge) within the watchdog timeout of typ 1.6 s (min 1.0 s, max 2.25 s); if no edge is detected the WDO output asserts low and an internal reset pulse is issued. Leaving WDI floating or three-stated (Hi-Z) disables the watchdog function."
      },
      {
        "number": "7",
        "name": "RESET",
        "type": "output",
        "description": "Reset output, active low (open name '/RESET' in the datasheet). Asserts low whenever VCC is below the 2.93 V reset threshold, whenever MR is pulled low, or whenever the watchdog times out, and remains asserted for typ 200 ms after the fault clears. Valid down to VCC = 1 V; drives CMOS-level VOH = VCC-1.2 V at 800 uA source."
      },
      {
        "number": "8",
        "name": "WDO",
        "type": "output",
        "description": "Watchdog output, active low. Asserts low if WDI has not been toggled within the 1.6 s watchdog window, or whenever VCC is below the reset threshold; released high once the watchdog is serviced and VCC is valid. Push-pull CMOS output (VOH2 = VCC-1.2 V at 800 uA, VOL2 <= 0.3 V at 3.2 mA sink)."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/76a067a7ed1b51e5336177399b2ad5f2.pdf",
        "pages": 14,
        "sha256": "fe7cca14ea02af6e",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "pin1": {
      "pad": "1",
      "at": [
        -2.475,
        -1.905
      ],
      "corner": "top-left",
      "source": "silk-marker",
      "derived_from": "SOIC-8_3.9x4.9mm_P1.27mm@sha256:074ecb2092b24fa4",
      "mark": "drawn"
    },
    "models_3d": [
      {
        "file": "cn706s.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          4.9,
          1.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "cn706s-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          4.9,
          1.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "827470c1f4f64ea874dd368e6af98ee2434f76c912bcc57dbc41d2ed0c8b2e65",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "ShangHai Consonance Elec",
      "Package": "SOP-8",
      "Category": "PMIC",
      "Pins": "8"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "cn706s"
  ],
  "discovery_pitch": "CN706S (ShangHai Consonance Elec) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "cn706s.kicad_sym",
    "cn706s.kicad_mod",
    "cn706s.glb",
    "cn706s.step",
    "cn706s.lbr",
    "docs/hero.png",
    "docs/cn706s-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "cn706s-etched.step"
  ],
  "visibility": {
    "public": true
  },
  "variants": [
    {
      "mpn": "CN706SS",
      "kind": "packaging"
    },
    {
      "mpn": "CN706SP",
      "kind": "packaging"
    }
  ],
  "updated_at": "2026-09-24T19:23:41.636Z"
}