93LC66B-I

{
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  "type": "component",
  "slug": "93lc66b-i",
  "title": "93LC66B-I",
  "brief": "Microchip Tech EEPROM, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
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    "memory",
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  "component": {
    "mpn": "93LC66B-I",
    "manufacturer": "Microchip Tech",
    "package": "SOIC-8",
    "pin_count": 8,
    "category": "Memory",
    "subcategory": "EEPROM",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588918409853603840",
    "parts": {
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    "distributor_links": {
      "lcsc": "C21712"
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    "distributor_check": {
      "checked_at": "2026-10-20T22:39:33Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
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      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "CS",
        "type": "input",
        "description": "Chip Select: a high level selects the device, and a low level deselects it and forces it into Standby mode."
      },
      {
        "number": "2",
        "name": "CLK",
        "type": "input",
        "description": "Serial Clock: opcodes, address and data are clocked in on the positive edge of CLK, and data bits are also clocked out on the positive edge."
      },
      {
        "number": "3",
        "name": "DI",
        "type": "input",
        "description": "Data In: clocks in the Start bit, opcode, address and data synchronously with CLK."
      },
      {
        "number": "4",
        "name": "DO",
        "type": "output",
        "description": "Data Out: outputs read data synchronously with CLK (TPD after the positive edge of CLK) and shows Ready/Busy status during erase and write cycles; it is High-Z if CS is held low through the entire erase/write cycle."
      },
      {
        "number": "5",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground reference for the device."
      },
      {
        "number": "6",
        "name": "ORG/NC",
        "type": "unconnected",
        "description": "On the 93LC66B (16-bit 'B' device) this pin is No Internal Connection; the ORG memory-organization function applies only to the 'C' devices."
      },
      {
        "number": "7",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection."
      },
      {
        "number": "8",
        "name": "VCC",
        "type": "power_in",
        "description": "Power supply; the 93LC66B operates from 2.5 V to 5.5 V."
      }
    ],
    "provenance": {
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        "primary_model": "claude-haiku-5-5",
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        "guard_notes": [
          "extractor flagged: The MPN 93LC66B-I has no package suffix. The SOIC package is code SN (93LC66B-I/SN) in the Product I; Pin 6 is listed as ORG/NC in the pin table. The datasheet states that the ORG pin is NC on A/B devic"
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        "cost_usd": 0.0519,
        "at": "2026-10-20T22:36:58"
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        "pages": 38,
        "sha256": "8d1b0da9c040d3b3",
        "source_tier": "lcsc"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
        "cites_pages": true,
        "refuses_to_fabricate": true
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        "zmin_mm": 0,
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      "Package": "SOIC-8",
      "Category": "Memory",
      "Pins": "8"
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    "appearance": {
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        "plating": "tin"
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          "name": "Program cycle time",
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          "name": "Ambient temperature with power applied",
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