AT25SF321B-MHB-T

{
  "slug": "at25sf321b-mhb-t",
  "version": "0.1.0",
  "type": "component",
  "description": "Adesto Technologies NOR FLASH, UDFN-8-EP(5x6). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "memory",
    "at25sf321b-mhb-t",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "at25sf321b-mhb-t.kicad_sym",
    "at25sf321b-mhb-t.kicad_mod",
    "at25sf321b-mhb-t.glb",
    "at25sf321b-mhb-t.step",
    "at25sf321b-mhb-t.lbr",
    "docs/hero.png",
    "docs/at25sf321b-mhb-t-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "at25sf321b-mhb-t-hero.glb",
    "at25sf321b-mhb-t-hero.overlay.json",
    "at25sf321b-mhb-t-etched.glb"
  ],
  "component": {
    "mpn": "AT25SF321B-MHB-T",
    "manufacturer": "Adesto Technologies",
    "package": "UDFN-8-EP(5x6)",
    "pin_count": 9,
    "category": "Memory",
    "subcategory": "NOR FLASH",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/1f976b7649fa0717fa72773bf8d4b7e3.pdf",
    "parts": {
      "symbol": "at25sf321b-mhb-t.kicad_sym",
      "footprint": "at25sf321b-mhb-t.kicad_mod",
      "model_3d": "at25sf321b-mhb-t-hero.glb",
      "model_3d_plain": "at25sf321b-mhb-t-etched.glb",
      "model_3d_step": "at25sf321b-mhb-t-etched.step",
      "model_3d_step_plain": "at25sf321b-mhb-t.step",
      "lbr": "at25sf321b-mhb-t.lbr"
    },
    "distributor_links": {
      "lcsc": "C2655411",
      "digikey": "1265-AT25SF321B-MHB-TTR-ND",
      "mouser": "988-AT25SF321B-MHB-T"
    },
    "distributor_check": {
      "checked_at": "2026-10-23T12:12:35Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "1265-AT25SF321B-MHB-TTR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "988-AT25SF321B-MHB-T",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "CS",
        "type": "input",
        "description": "Active-low chip select: asserting selects the device, deasserting deselects it and normally places it in standby, and a high-to-low transition is required to start an operation."
      },
      {
        "number": "2",
        "name": "SO (IO1)",
        "type": "bidirectional",
        "description": "Serial output clocked out on the falling edge of SCK, used as I/O1 in dual and quad modes, and high-impedance whenever the device is deselected."
      },
      {
        "number": "3",
        "name": "WP (IO2)",
        "type": "bidirectional",
        "description": "Write protect pin controlling hardware locking, used as I/O2 in quad commands, internally pulled high, and recommended to be tied to VCC when unused."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference for the power supply, to be connected to system ground."
      },
      {
        "number": "5",
        "name": "SI (IO0)",
        "type": "bidirectional",
        "description": "Serial input for commands, addresses and data latched on the rising edge of SCK, and becomes I/O0 in dual and quad modes."
      },
      {
        "number": "6",
        "name": "SCK",
        "type": "input",
        "description": "Serial clock: command, address and input data are latched on the rising edge and output data is clocked out on the falling edge."
      },
      {
        "number": "7",
        "name": "HOLD (IO3)",
        "type": "bidirectional",
        "description": "Hold pin pauses serial communication without deselecting the device, used as I/O3 in quad commands, internally pulled high, and recommended to be tied to VCC when unused."
      },
      {
        "number": "8",
        "name": "VCC",
        "type": "power_in",
        "description": "Device power supply pin, operating range 2.7 V to 3.6 V."
      },
      {
        "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: The 8MA1 UDFN is thermally enhanced with an exposed pad (D2 x E2 in the package drawing), but the da; The UDFN top-view figure text is extracted as a flat label list. The pin-to-number assignment (1 CS,"
        ],
        "pages_sent": 19,
        "cost_usd": 0.185,
        "at": "2026-10-23T12:12:23"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/1f976b7649fa0717fa72773bf8d4b7e3.pdf",
        "pages": 59,
        "sha256": "572a8c30b74095a5",
        "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": "at25sf321b-mhb-t.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": "2026-10-23",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "at25sf321b-mhb-t-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": "1b3af5eb1ef99f09ac73777bb3da621e992bb14c0f8fb5cb7e52252d4db58ea3",
        "checked": "2026-10-23",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}