AT93C66B-SSHM-T

{
  "schema_version": 1,
  "type": "component",
  "slug": "at93c66b-sshm-t",
  "title": "AT93C66B-SSHM-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",
    "at93c66b-sshm-t"
  ],
  "component": {
    "mpn": "AT93C66B-SSHM-T",
    "manufacturer": "Microchip",
    "package": "SOIC-8",
    "pin_count": 8,
    "category": "Memory",
    "subcategory": "EEPROM",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/34639feb974f440cb898fd794ffb11eb.pdf",
    "parts": {
      "symbol": "at93c66b-sshm-t.kicad_sym",
      "footprint": "at93c66b-sshm-t.kicad_mod",
      "model_3d": "at93c66b-sshm-t-etched.glb",
      "model_3d_plain": "at93c66b-sshm-t.glb",
      "model_3d_step": "at93c66b-sshm-t-etched.step",
      "model_3d_step_plain": "at93c66b-sshm-t.step",
      "lbr": "at93c66b-sshm-t.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "CS",
        "type": "input",
        "description": "Chip Select. A rising edge on CS starts a valid instruction; holding CS high maintains sequential-read mode. CS low places the device in standby."
      },
      {
        "number": "2",
        "name": "SK",
        "type": "input",
        "description": "Serial Data Clock. Synchronizes DI on rising edges and DO transitions. Max frequency 2MHz at 4.5-5.5V, 1MHz at 2.5-5.5V, 250kHz at 1.7-5.5V."
      },
      {
        "number": "3",
        "name": "DI",
        "type": "input",
        "description": "Serial Data Input. Receives the start bit, opcode, address, and (for WRITE/WRAL) data. Sampled on rising edge of SK."
      },
      {
        "number": "4",
        "name": "DO",
        "type": "tri_state",
        "description": "Serial Data Output. Clocks out read data on falling edges of SK and reports Ready/Busy status during self-timed program/erase cycles. High-impedance when CS is low or the device is idle. Max output current 5.0mA."
      },
      {
        "number": "5",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference (0V) for the device."
      },
      {
        "number": "6",
        "name": "ORG",
        "type": "input",
        "description": "Internal Organization select. ORG tied to VCC selects the x16 organization (256 words x 16); ORG tied to GND selects the x8 organization (512 words x 8). Has an internal ~1MOhm pull-up so leaving ORG floating defaults to x16."
      },
      {
        "number": "7",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect. Not internally bonded; may be left floating or tied to any potential within the absolute maximum rating."
      },
      {
        "number": "8",
        "name": "VCC",
        "type": "power_in",
        "description": "Positive supply, 1.7V to 5.5V. Typical ICC 0.5mA (read/write at 1MHz, 5V), max 2.0mA. Standby current 0.4uA typ @ 1.7V, 10uA typ @ 5V."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/34639feb974f440cb898fd794ffb11eb.pdf",
        "pages": 21,
        "sha256": "821c552202a268a8",
        "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"
    }
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Microchip",
      "Package": "SOIC-8",
      "Category": "Memory",
      "Pins": "8"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "at93c66b-sshm-t"
  ],
  "discovery_pitch": "AT93C66B-SSHM-T (Microchip) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "at93c66b-sshm-t.kicad_sym",
    "at93c66b-sshm-t.kicad_mod",
    "at93c66b-sshm-t.glb",
    "at93c66b-sshm-t.step",
    "at93c66b-sshm-t-etched.step",
    "at93c66b-sshm-t.lbr",
    "docs/hero.png",
    "docs/at93c66b-sshm-t-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "updated_at": "2026-09-24T17:15:09.335Z"
}