CM1270-ACA-A

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  "slug": "cm1270-aca-a",
  "title": "CM1270-ACA-A",
  "brief": "iCM(创芯微) , MSOP-10. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
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    "cm1270-aca-a",
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  "component": {
    "mpn": "CM1270-ACA-A",
    "manufacturer": "iCM(创芯微)",
    "package": "MSOP-10",
    "pin_count": 10,
    "category": "IC",
    "subcategory": "IC",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603349414056775680",
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      "lbr": "cm1270-aca-a.lbr"
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    "distributor_links": {
      "lcsc": "C22446479"
    },
    "distributor_check": {
      "checked_at": "2026-10-17T11:45:42Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VCC",
        "type": "power_in",
        "description": "Chip supply terminal; the absolute maximum rating is VSS-0.3 V to VSS+40 V."
      },
      {
        "number": "2",
        "name": "VC1",
        "type": "input",
        "description": "Positive voltage terminal of battery cell 1; the input voltage between adjacent VC pins is limited to 0 to 12 V."
      },
      {
        "number": "3",
        "name": "VC2",
        "type": "input",
        "description": "Positive voltage terminal of battery cell 2 and negative voltage connection of cell 1; the input voltage between adjacent VC pins is limited to 0 to 12 V."
      },
      {
        "number": "4",
        "name": "VC3",
        "type": "input",
        "description": "Positive voltage terminal of battery cell 3 and negative voltage connection of cell 2; the input voltage between adjacent VC pins is limited to 0 to 12 V."
      },
      {
        "number": "5",
        "name": "VC4",
        "type": "input",
        "description": "Positive voltage terminal of battery cell 4 and negative voltage connection of cell 3; the input voltage between adjacent VC pins is limited to 0 to 12 V."
      },
      {
        "number": "6",
        "name": "VC5",
        "type": "input",
        "description": "Positive voltage terminal of battery cell 5 and negative voltage connection of cell 4; the input voltage between adjacent VC pins is limited to 0 to 12 V."
      },
      {
        "number": "7",
        "name": "VC6",
        "type": "input",
        "description": "Positive voltage terminal of battery cell 6 and negative voltage connection of cell 5; the input voltage between adjacent VC pins is limited to 0 to 12 V."
      },
      {
        "number": "8",
        "name": "VC7",
        "type": "input",
        "description": "Positive voltage terminal of battery cell 7 and negative voltage connection of cell 6; the input voltage between adjacent VC pins is limited to 0 to 12 V."
      },
      {
        "number": "9",
        "name": "VSS",
        "type": "power_in",
        "description": "Chip ground terminal; the input voltage from VC7 to VSS is limited to 0 to 12 V."
      },
      {
        "number": "10",
        "name": "CO",
        "type": "output",
        "description": "Charge-control connection terminal that drives the external MOSFET; its output voltage is limited to VSS-0.3 V to VCC+0.3 V."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-haiku-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The datasheet gives the MSOP10 package and a 10-pin pinout table for the CM1270-A series, and the MP; The datasheet does not assign KiCad electrical types to the VC1-VC8 cell-sense pins; they are classi; Pin 9 VSS is classified as power_in as the ground terminal, per the convention that GND is power_in."
        ],
        "pages_sent": 15,
        "cost_usd": 0.0383,
        "at": "2026-10-17T11:43:37"
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        "pages": 15,
        "sha256": "e42a770758de2c96",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 10,
        "described": 10,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
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        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4.9,
          3,
          1.1
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "b8f88eac3ce221c2ccb0b5048f9ad49c2ef4af148f8ae50c4e232e357683f547",
        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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        "sha256": "57256bc45c2ef1b434eb6075bb2ec6610b6922c1c2c714ada21b77747bf7e30d",
        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "iCM(创芯微)",
      "Package": "MSOP-10",
      "Category": "",
      "Pins": "10"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "e42a770758de2c96cff740886f41741d002980a5b60415924b1bac33513b9877",
      "rows": [
        {
          "name": "Normal operating current",
          "symbol": "IVCC",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 3.5,
          "max": 6,
          "conditions": "V1=V2=V3=V4=V5=V6=V7=3.5V",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Overcharge protection voltage tolerance (printed ±0.025 V about VOC)",
          "symbol": "VOC",
          "kind": "tolerance",
          "unit": "V",
          "min": -0.025,
          "typ": null,
          "max": 0.025,
          "conditions": "V1=V2=V3=V4=V5=V6=V7=3.5V, V1=3.5 → 4.4V",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Release voltage tolerance (printed ±0.050 V about VOCR)",
          "symbol": "VOCR",
          "kind": "tolerance",
          "unit": "V",
          "min": -0.05,
          "typ": null,
          "max": 0.05,
          "conditions": "V1=V2=V3=V4=V5=V6=V7=3.5V, V1=4.4 → 3.5V",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Overcharge protection delay",
          "symbol": "TOC",
          "kind": "timing",
          "unit": "s",
          "min": null,
          "typ": 1,
          "max": null,
          "conditions": "V1=V2=V3=V4=V5=V6=V7=3.5V, V1=3.5 → 4.4V",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Restore delay",
          "symbol": "TOCR",
          "kind": "timing",
          "unit": "ms",
          "min": 128,
          "typ": 256,
          "max": 384,
          "conditions": "V1=V2=V3=V4=V5=V6=V7=3.5V, V1=4.4 → 3.5V",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Reset delay",
          "symbol": "TRST",
          "kind": "timing",
          "unit": "ms",
          "min": 1,
          "typ": 2.5,
          "max": 4,
          "conditions": "V1=V2=V3=V4=V5=V6=V7=3.5V, V1=3.5 → 4.4 → 3.5V",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Wire-break protection delay",
          "symbol": "TOW",
          "kind": "timing",
          "unit": "ms",
          "min": 10,
          "typ": 20,
          "max": 30,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Wire-break release delay",
          "symbol": "TOWR",
          "kind": "timing",
          "unit": "ms",
          "min": 24,
          "typ": 48,
          "max": 72,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "CO high-level output resistance (dynamic H)",
          "symbol": "RCOH",
          "kind": "electrical",
          "unit": "kΩ",
          "min": null,
          "typ": 8,
          "max": null,
          "conditions": "V1=V2=V3=V4=V5=V6=V7=3.5V, V1=4.4V, VCO=CO high output level -1.0V",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "CO low-level output resistance (dynamic H)",
          "symbol": "RCOL",
          "kind": "electrical",
          "unit": "kΩ",
          "min": null,
          "typ": 1,
          "max": null,
          "conditions": "V1=V2=V3=V4=V5=V6=V7=3.5V, V1=3.5V, VCO=1.0V",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Supply voltage VCC",
          "symbol": "VCC",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 40,
          "conditions": "referenced to VSS (printed VSS-0.3 ~ VSS+40)",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Input voltage VCELL",
          "symbol": "VCELL",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": 0,
          "typ": null,
          "max": 12,
          "conditions": "VC1-VC2 ... VC6-VC7, VC7-VSS",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "CO output terminal voltage",
          "symbol": "VCO",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": null,
          "conditions": "referenced to VSS; printed max is VCC+0.3",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Operating ambient temperature",
          "symbol": "TOPR",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature range",
          "symbol": "TSTG",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -55,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        }
      ]
    }
  },
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  "discovery_pitch": "CM1270-ACA-A (iCM(创芯微)) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
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