25LC320A-I

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  "slug": "25lc320a-i",
  "title": "25LC320A-I",
  "brief": "Microchip Tech EEPROM, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
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    "mpn": "25LC320A-I",
    "manufacturer": "Microchip Tech",
    "package": "SOIC-8",
    "pin_count": 8,
    "category": "Memory",
    "subcategory": "EEPROM",
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      {
        "number": "1",
        "name": "CS",
        "type": "input",
        "description": "Active-low Chip Select input; a high level deselects the device and forces it into Standby mode, and SO goes high-impedance when deselected."
      },
      {
        "number": "2",
        "name": "SO",
        "type": "output",
        "description": "Serial Data Output that shifts data out after the falling edge of SCK during a read cycle and goes to high-impedance when the device is deselected or HOLD is low."
      },
      {
        "number": "3",
        "name": "WP",
        "type": "input",
        "description": "Write-Protect input that, together with the WPEN bit in the STATUS register, disables writes to the nonvolatile STATUS register bits when low; the WP function is blocked when WPEN is low."
      },
      {
        "number": "4",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground reference pin for the device."
      },
      {
        "number": "5",
        "name": "SI",
        "type": "input",
        "description": "Serial Data Input that receives instructions, addresses and data, latched on the rising edge of SCK."
      },
      {
        "number": "6",
        "name": "SCK",
        "type": "input",
        "description": "Serial Clock input that synchronizes communication; SI is latched on its rising edge and SO is updated after its falling edge."
      },
      {
        "number": "7",
        "name": "HOLD",
        "type": "input",
        "description": "Hold input that must be held high when not used; pulling it low while SCK is low pauses serial communication and tri-states SO without resetting the sequence."
      },
      {
        "number": "8",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage pin; the device selection table lists a VCC range of 2.5V to 5.5V for this part."
      }
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        "at": "2026-10-20T10:25:46"
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      "Package": "SOIC-8",
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