AT25640B-SSHL-T

{
  "schema_version": 1,
  "type": "component",
  "slug": "at25640b-sshl-t",
  "title": "AT25640B-SSHL-T",
  "brief": "Microchip EEPROM, SOIC-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "memory",
    "at25640b-sshl-t"
  ],
  "component": {
    "mpn": "AT25640B-SSHL-T",
    "manufacturer": "Microchip",
    "package": "SOIC-8",
    "pin_count": 8,
    "category": "Memory",
    "subcategory": "EEPROM",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/5fa5147270b33bb777c859e9adc89826.pdf",
    "parts": {
      "symbol": "at25640b-sshl-t.kicad_sym",
      "footprint": "at25640b-sshl-t.kicad_mod",
      "model_3d": "at25640b-sshl-t-etched.glb",
      "model_3d_plain": "at25640b-sshl-t.glb",
      "model_3d_step": "at25640b-sshl-t-etched.step",
      "model_3d_step_plain": "at25640b-sshl-t.step",
      "lbr": "at25640b-sshl-t.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "CS",
        "type": "input",
        "description": "Chip Select, active-low. Drives the device into the active state when low, enabling the SPI interface; when high, the device is deselected and SO is high-impedance."
      },
      {
        "number": "2",
        "name": "SO",
        "type": "output",
        "description": "Serial Data Output. Tri-state output; shifts data out on the falling edge of SCK. High-impedance when CS is high."
      },
      {
        "number": "3",
        "name": "WP",
        "type": "input",
        "description": "Write Protect, active-low. When low with WPEN=1, blocks writes to the status register (hardware write protection); when high, normal read/write operations proceed. Function disabled when WPEN=0."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference for all logic and supply."
      },
      {
        "number": "5",
        "name": "SI",
        "type": "input",
        "description": "Serial Data Input. Data is shifted in MSB-first on the rising edge of SCK when CS is low."
      },
      {
        "number": "6",
        "name": "SCK",
        "type": "input",
        "description": "Serial Clock. Supports SPI Modes 0 (0,0) and 3 (1,1). Max 20MHz at 5V, 10MHz at 2.5V, 5MHz at 1.8V."
      },
      {
        "number": "7",
        "name": "HOLD",
        "type": "input",
        "description": "Hold, active-low. Suspends serial communication without resetting the internal sequence; SO enters high-impedance and SI is ignored while HOLD is low. Must be transitioned only while SCK is low."
      },
      {
        "number": "8",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage, 1.8V to 5.5V. Standby current typ 2.0µA at 5V; active current typ 7.5mA reading at 20MHz/5V."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/5fa5147270b33bb777c859e9adc89826.pdf",
        "pages": 23,
        "sha256": "6eb63f39b2e61b60",
        "source_tier": "mfr"
      },
      "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": [
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        "file": "at25640b-sshl-t.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": "at25640b-sshl-t-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "7316a5ba373bc8012db9a84c724796a98f46799ad6b3328771b949f3912a8532",
        "checked": "2026-11-03",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Microchip",
      "Package": "SOIC-8",
      "Category": "Memory",
      "Pins": "8"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "at25640b-sshl-t"
  ],
  "discovery_pitch": "AT25640B-SSHL-T (Microchip) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "at25640b-sshl-t.kicad_sym",
    "at25640b-sshl-t.kicad_mod",
    "at25640b-sshl-t.glb",
    "at25640b-sshl-t.step",
    "at25640b-sshl-t-etched.step",
    "at25640b-sshl-t.lbr",
    "docs/hero.png",
    "docs/at25640b-sshl-t-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "updated_at": "2026-09-24T17:10:58.338Z"
}