MR25H40CDF

{
  "slug": "mr25h40cdf",
  "version": "0.1.0",
  "type": "component",
  "description": "Everspin Tech SRAM, DFN-8-EP(5x6). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "memory",
    "mr25h40cdf",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "mr25h40cdf.kicad_sym",
    "mr25h40cdf.kicad_mod",
    "mr25h40cdf.glb",
    "mr25h40cdf.step",
    "mr25h40cdf.lbr",
    "docs/hero.png",
    "docs/mr25h40cdf-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "mr25h40cdf-hero.glb",
    "mr25h40cdf-hero.overlay.json",
    "mr25h40cdf-etched.glb"
  ],
  "component": {
    "mpn": "MR25H40CDF",
    "manufacturer": "Everspin Tech",
    "package": "DFN-8-EP(5x6)",
    "pin_count": 9,
    "category": "Memory",
    "subcategory": "SRAM",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/489d06164dceedfe362d9da9dc145f06.pdf",
    "parts": {
      "symbol": "mr25h40cdf.kicad_sym",
      "footprint": "mr25h40cdf.kicad_mod",
      "model_3d": "mr25h40cdf-hero.glb",
      "model_3d_plain": "mr25h40cdf-etched.glb",
      "model_3d_step": "mr25h40cdf-etched.step",
      "model_3d_step_plain": "mr25h40cdf.step",
      "lbr": "mr25h40cdf.lbr"
    },
    "distributor_links": {
      "lcsc": "C246235"
    },
    "distributor_check": {
      "checked_at": "2026-10-22T21:53:20Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "CS",
        "type": "input",
        "description": "Active-low chip select; when high the memory is powered down to minimize standby power, inputs are ignored and SO is Hi-Z."
      },
      {
        "number": "2",
        "name": "SO",
        "type": "tri_state",
        "description": "Serial data output driven during a read operation and Hi-Z at all other times and when HOLD is low; data transitions on the falling edge of SCK."
      },
      {
        "number": "3",
        "name": "WP",
        "type": "input",
        "description": "Write protect; a low on this input prevents write operations to the Status Register."
      },
      {
        "number": "4",
        "name": "VSS",
        "type": "power_in",
        "description": "Power supply ground pin."
      },
      {
        "number": "5",
        "name": "SI",
        "type": "input",
        "description": "Serial data input sampled on the rising edge of SCK and ignored at other times; can be tied to SO to form a single bidirectional data bus."
      },
      {
        "number": "6",
        "name": "SCK",
        "type": "input",
        "description": "Serial clock that synchronizes the MRAM, up to 50 MHz; inputs captured on the rising edge, outputs change on the falling edge, supports SPI Mode 0 and Mode 3."
      },
      {
        "number": "7",
        "name": "HOLD",
        "type": "input",
        "description": "A low suspends the current memory operation and the device ignores CS and SCK transitions; all HOLD transitions must occur while CS is low."
      },
      {
        "number": "8",
        "name": "VDD",
        "type": "power_in",
        "description": "Power supply voltage from +3.0 to +3.6 volts."
      },
      {
        "number": "9",
        "name": "EP",
        "type": "passive",
        "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-sonnet-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: MR25H40CDF is not listed in the provided pages as written (ordering table shows suffix DF = 8-pin DF; SO typed as tri_state since datasheet says it is Hi-Z except during reads; Table 1 lists VSS as 'Ref"
        ],
        "pages_sent": 9,
        "cost_usd": 0.0819,
        "at": "2026-10-22T21:53:09"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/489d06164dceedfe362d9da9dc145f06.pdf",
        "pages": 30,
        "sha256": "a9e4056e58de94e6",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 9,
        "described": 9,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "mr25h40cdf.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          4.98,
          0.92
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "13e5a2a05f78c2a0952534b2fb187d0be154d366a431374e398c7e2032779f1b",
        "checked": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "mr25h40cdf-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          4.98,
          0.92
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "3ec08e490190d9a85a7ea391bd418976d361640625548c31f232c6413754ec08",
        "checked": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}