AT25SF321B-SSHB-T

{
  "slug": "at25sf321b-sshb-t",
  "version": "0.1.0",
  "type": "component",
  "description": "RENESAS NOR FLASH, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "memory",
    "at25sf321b-sshb-t",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "at25sf321b-sshb-t.kicad_sym",
    "at25sf321b-sshb-t.kicad_mod",
    "at25sf321b-sshb-t.glb",
    "at25sf321b-sshb-t.step",
    "at25sf321b-sshb-t.lbr",
    "docs/hero.png",
    "docs/at25sf321b-sshb-t-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "at25sf321b-sshb-t-hero.glb",
    "at25sf321b-sshb-t-hero.overlay.json",
    "at25sf321b-sshb-t-etched.glb"
  ],
  "component": {
    "mpn": "AT25SF321B-SSHB-T",
    "manufacturer": "RENESAS",
    "package": "SOIC-8",
    "pin_count": 8,
    "category": "Memory",
    "subcategory": "NOR FLASH",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588939021334818816",
    "parts": {
      "symbol": "at25sf321b-sshb-t.kicad_sym",
      "footprint": "at25sf321b-sshb-t.kicad_mod",
      "model_3d": "at25sf321b-sshb-t-hero.glb",
      "model_3d_plain": "at25sf321b-sshb-t-etched.glb",
      "model_3d_step": "at25sf321b-sshb-t-etched.step",
      "model_3d_step_plain": "at25sf321b-sshb-t.step",
      "lbr": "at25sf321b-sshb-t.lbr"
    },
    "distributor_links": {
      "lcsc": "C2061349"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T19:52:47Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "CS",
        "type": "input",
        "description": "Asserting CS selects the device; a high-to-low transition is required to start an operation and a low-to-high transition is required to end it, and the device does not enter standby until an internally self-timed program or erase completes."
      },
      {
        "number": "2",
        "name": "SO (IO1)",
        "type": "bidirectional",
        "description": "Serial data output clocked out on the falling edge of SCK, held high-impedance whenever the device is deselected, and used as I/O1 in dual-output read commands."
      },
      {
        "number": "3",
        "name": "WP (IO2)",
        "type": "bidirectional",
        "description": "Write protect pin that controls the hardware locking feature; it is internally pulled high and may be left floating if hardware protection is unused, though connection to VCC is recommended, and it becomes I/O2 in quad commands."
      },
      {
        "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 all data, command and address sequences, latched on the rising edge of SCK, ignored when the device is deselected, and used as I/O0 in dual- and quad-output reads."
      },
      {
        "number": "6",
        "name": "SCK",
        "type": "input",
        "description": "Serial clock input: command, address and input data on SI are latched on the rising edge of SCK, and output data on SO is clocked out on the falling edge."
      },
      {
        "number": "7",
        "name": "HOLD (IO3)",
        "type": "bidirectional",
        "description": "Pauses serial communication without deselecting or resetting the device while asserted (CS asserted and SCK low to start), with SO high-impedance; it is internally pulled high and may float if unused, though connection to VCC is recommended."
      },
      {
        "number": "8",
        "name": "VCC",
        "type": "power_in",
        "description": "Device power supply pin that supplies the source voltage to the device."
      }
    ],
    "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: Package variant: the MPN AT25SF321B-SSHB-T uses package code SS, which the datasheet defines as 8-le; Pin numbers were assigned from the Figure 2-1 text layout (pins 1-4 down one side, 8-5 up the other); The datasheet text for WP and HOLD in the Quad-Output Read paragraphs prints 'I/O33-0', which appear"
        ],
        "pages_sent": 19,
        "cost_usd": 0.0953,
        "at": "2026-10-18T19:52:31"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588939021334818816",
        "pages": 59,
        "sha256": "fa5eb65e69b476b2",
        "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"
    },
    "models_3d": [
      {
        "file": "at25sf321b-sshb-t.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          4.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "at25sf321b-sshb-t-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          4.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "2f7c5cd24f25e6c26d27c311347062bc8a2b6c5497e3fb2fd0d65e5ea1e287cb",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}