AT93C66B-XHM-B

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  "slug": "at93c66b-xhm-b",
  "title": "AT93C66B-XHM-B",
  "brief": "Microchip Tech EEPROM, TSSOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
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    "mpn": "AT93C66B-XHM-B",
    "manufacturer": "Microchip Tech",
    "package": "TSSOP-8",
    "pin_count": 8,
    "category": "Memory",
    "subcategory": "EEPROM",
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    "distributor_links": {
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      "mouser": "556-AT93C66B-XHM-B"
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      "source": "Component Ocean /api/assign-pns",
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    "pins": [
      {
        "number": "1",
        "name": "CS",
        "type": "input",
        "description": "Chip Select: the device is selected only when CS is high; when not selected, DI data is not accepted and DO stays in high-impedance."
      },
      {
        "number": "2",
        "name": "SK",
        "type": "input",
        "description": "Serial Data Clock: DI is latched on the rising edge of SK and DO is clocked out on the rising edge of SK."
      },
      {
        "number": "3",
        "name": "DI",
        "type": "input",
        "description": "Serial Data Input: receives instructions, addresses and data, latched on the rising edge of SK."
      },
      {
        "number": "4",
        "name": "DO",
        "type": "tri_state",
        "description": "Serial Data Output: shifts out read data after the SK rising edge and, when CS goes high after an erase or write has started, outputs the Ready/Busy status; high-impedance when not selected."
      },
      {
        "number": "5",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference for the power supply, to be connected to system ground."
      },
      {
        "number": "6",
        "name": "ORG",
        "type": "input",
        "description": "Internal Organization select: tied to VCC selects x16 (128/256 words of 16 bits), tied to GND selects x8 (256/512 words of 8 bits); if left unconnected, the internal pull-up selects x16."
      },
      {
        "number": "7",
        "name": "NC",
        "type": "unconnected",
        "description": "No Connect pin."
      },
      {
        "number": "8",
        "name": "VCC",
        "type": "power_in",
        "description": "Device power supply pin; the device operates from 2.5V to 5.5V, and operation at invalid VCC may produce spurious results."
      }
    ],
    "provenance": {
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        "primary_model": "claude-haiku-5-5",
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        "consensus_model": "claude-sonnet-5-5",
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        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The MPN suffix 'AT93C66B-XHM-B' does not appear in the supplied text. The ordering examples on page ; The ORG internal pull-up value is stated inconsistently: page 6 says 1 MΩ and the page 7 block diagr; The DO pin type is given as tri_state because the datasheet specifies a high-impedance state when th"
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        "at": "2026-10-19T09:10:55"
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        "sha256": "b2c92ec7874801eb",
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      "Package": "TSSOP-8",
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      "Pins": "8"
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      "contacts": {
        "quote": "8-Lead Plastic Small Outline (SN) - Narrow, 3.90 mm (.150 In.) Body [SOIC] © 2017 Microchip Technology Inc.",
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