ICM7556ISD+T

{
  "slug": "icm7556isd-t",
  "version": "0.1.0",
  "type": "component",
  "description": "Analog Devices Inc Maxim Integrated Timers / Counters, SOIC-14. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "clock-timing",
    "icm7556isd+t",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "icm7556isd-t.kicad_sym",
    "icm7556isd-t.kicad_mod",
    "icm7556isd-t.glb",
    "icm7556isd-t.step",
    "icm7556isd-t.lbr",
    "docs/hero.png",
    "docs/icm7556isd-t-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "icm7556isd-t-hero.glb",
    "icm7556isd-t-hero.overlay.json",
    "icm7556isd-t-etched.glb"
  ],
  "component": {
    "mpn": "ICM7556ISD+T",
    "manufacturer": "Analog Devices Inc Maxim Integrated",
    "package": "SOIC-14",
    "pin_count": 14,
    "category": "Clock/Timing",
    "subcategory": "Timers / Counters",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590255808556019712",
    "parts": {
      "symbol": "icm7556isd-t.kicad_sym",
      "footprint": "icm7556isd-t.kicad_mod",
      "model_3d": "icm7556isd-t-hero.glb",
      "model_3d_plain": "icm7556isd-t-etched.glb",
      "model_3d_step": "icm7556isd-t-etched.step",
      "model_3d_step_plain": "icm7556isd-t.step",
      "lbr": "icm7556isd-t.lbr"
    },
    "distributor_links": {
      "lcsc": "C3304282",
      "digikey": "ICM7556ISD+TTR-ND",
      "mouser": "700-ICM7556ISDT"
    },
    "distributor_check": {
      "checked_at": "2026-10-20T21:08:01Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "ICM7556ISD+TTR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "700-ICM7556ISDT",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "DISCHARGE_A",
        "type": "passive",
        "description": "Section A discharge output that discharges the external timing capacitor when the output is low."
      },
      {
        "number": "2",
        "name": "THRESHOLD_A",
        "type": "input",
        "description": "Section A threshold comparator input that resets the timer when above 2/3 of V+ (0.66 V+ typ at V+ = 5V)."
      },
      {
        "number": "3",
        "name": "CONTROL VOLTAGE_A",
        "type": "input",
        "description": "Section A control voltage input that sets the THRESHOLD and TRIGGER trip voltages and needs no decoupling capacitor."
      },
      {
        "number": "4",
        "name": "RESET_A",
        "type": "input",
        "description": "Section A active-low reset input with trip voltage of about 0.7V that dominates all other inputs."
      },
      {
        "number": "5",
        "name": "OUTPUT_A",
        "type": "output",
        "description": "Section A CMOS output that drives CMOS and TTL loads, sinking 3.2mA at 0.4V max low."
      },
      {
        "number": "6",
        "name": "TRIGGER_A",
        "type": "input",
        "description": "Section A trigger input that sets the output high when below 1/3 of V+ (0.33 V+ typ at V+ = 5V)."
      },
      {
        "number": "7",
        "name": "GND",
        "type": "power_in",
        "description": "Ground, common to both timer sections."
      },
      {
        "number": "8",
        "name": "TRIGGER_B",
        "type": "input",
        "description": "Section B trigger input that sets the output high when below 1/3 of V+ (0.33 V+ typ at V+ = 5V)."
      },
      {
        "number": "9",
        "name": "OUTPUT_B",
        "type": "output",
        "description": "Section B CMOS output that drives CMOS and TTL loads, sinking 3.2mA at 0.4V max low."
      },
      {
        "number": "10",
        "name": "RESET_B",
        "type": "input",
        "description": "Section B active-low reset input with trip voltage of about 0.7V that dominates all other inputs."
      },
      {
        "number": "11",
        "name": "CONTROL VOLTAGE_B",
        "type": "input",
        "description": "Section B control voltage input that sets the THRESHOLD and TRIGGER trip voltages and needs no decoupling capacitor."
      },
      {
        "number": "12",
        "name": "THRESHOLD_B",
        "type": "input",
        "description": "Section B threshold comparator input that resets the timer when above 2/3 of V+ (0.66 V+ typ at V+ = 5V)."
      },
      {
        "number": "13",
        "name": "DISCHARGE_B",
        "type": "passive",
        "description": "Section B discharge output that discharges the external timing capacitor when the output is low."
      },
      {
        "number": "14",
        "name": "V+",
        "type": "power_in",
        "description": "Positive supply, 2V to 18V (absolute maximum +18V)."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-sonnet-5-5",
        "primary_mode": "text+vision",
        "consensus_model": "claude-opus-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Pin types for DISCHARGE (passive vs. output) are my choice; the datasheet only calls it a discharge ",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 11,
        "cost_usd": 0.2868,
        "at": "2026-10-20T21:02:42"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590255808556019712",
        "pages": 11,
        "sha256": "30fd218015c11427",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 14,
        "described": 14,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "icm7556isd-t.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          8.7,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "3b9a775da256c8afcc28dcddfbc2eb3f266107fe61ce8446d96f2c52b6f44a70",
        "checked": "2026-10-20",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "icm7556isd-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": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "1521884572ee131f8fc6f056105caa1fb355e24bfd807018015185b6ae4705be",
        "checked": "2026-10-20",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}