HT556CRZ

{
  "slug": "ht556crz",
  "version": "0.1.0",
  "type": "component",
  "description": "HTCSEMI Timers / Counters, SOP-14. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "clock-timing",
    "ht556crz",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "ht556crz.kicad_sym",
    "ht556crz.kicad_mod",
    "ht556crz.glb",
    "ht556crz.step",
    "ht556crz.lbr",
    "docs/hero.png",
    "docs/ht556crz-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "ht556crz-hero.glb",
    "ht556crz-hero.overlay.json",
    "ht556crz-etched.glb"
  ],
  "component": {
    "mpn": "HT556CRZ",
    "manufacturer": "HTCSEMI",
    "package": "SOP-14",
    "pin_count": 14,
    "category": "Clock/Timing",
    "subcategory": "Timers / Counters",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589837741900140544",
    "parts": {
      "symbol": "ht556crz.kicad_sym",
      "footprint": "ht556crz.kicad_mod",
      "model_3d": "ht556crz-hero.glb",
      "model_3d_plain": "ht556crz-etched.glb",
      "model_3d_step": "ht556crz-etched.step",
      "model_3d_step_plain": "ht556crz.step",
      "lbr": "ht556crz.lbr"
    },
    "distributor_links": {
      "lcsc": "C2858919"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T14:27:57Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "DISCHARGE1",
        "type": "passive",
        "description": "Discharge output of timer 1, which discharges the external timing capacitor."
      },
      {
        "number": "2",
        "name": "THRESHOLD1",
        "type": "input",
        "description": "Threshold comparator input of timer 1, which resets the flip-flop at 2/3 V+."
      },
      {
        "number": "3",
        "name": "CONTROL VOLTAGE1",
        "type": "input",
        "description": "Control voltage input of timer 1, which sets the trip voltages of the threshold and trigger comparators and need not be decoupled."
      },
      {
        "number": "4",
        "name": "RESET1",
        "type": "input",
        "description": "Active-low reset input of timer 1, with a trip voltage of about 0.6V to 0.7V, which dominates all other inputs."
      },
      {
        "number": "5",
        "name": "OUTPUT1",
        "type": "output",
        "description": "Output of timer 1, a CMOS driver that can source or sink enough current to drive TTL and CMOS loads."
      },
      {
        "number": "6",
        "name": "TRIGGER1",
        "type": "input",
        "description": "Active-low trigger input of timer 1, which sets the flip-flop when it falls below 1/3 V+."
      },
      {
        "number": "7",
        "name": "GND",
        "type": "power_in",
        "description": "Ground, shared by both timers."
      },
      {
        "number": "8",
        "name": "TRIGGER2",
        "type": "input",
        "description": "Active-low trigger input of timer 2, which sets the flip-flop when it falls below 1/3 V+."
      },
      {
        "number": "9",
        "name": "OUTPUT2",
        "type": "output",
        "description": "Output of timer 2, a CMOS driver that can source or sink enough current to drive TTL and CMOS loads."
      },
      {
        "number": "10",
        "name": "RESET2",
        "type": "input",
        "description": "Active-low reset input of timer 2, with a trip voltage of about 0.6V to 0.7V, which dominates all other inputs."
      },
      {
        "number": "11",
        "name": "CONTROL VOLTAGE2",
        "type": "input",
        "description": "Control voltage input of timer 2, which sets the trip voltages of the threshold and trigger comparators and need not be decoupled."
      },
      {
        "number": "12",
        "name": "THRESHOLD2",
        "type": "input",
        "description": "Threshold comparator input of timer 2, which resets the flip-flop at 2/3 V+."
      },
      {
        "number": "13",
        "name": "DISCHARGE2",
        "type": "passive",
        "description": "Discharge output of timer 2, which discharges the external timing capacitor."
      },
      {
        "number": "14",
        "name": "VDD",
        "type": "power_in",
        "description": "Positive supply, shared by both timers, guaranteed 2V to 18V with an absolute maximum of +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: The datasheet pin diagram is titled '14 LD PDIP, CERDIP'. A SOP14 drawing exists on page 9, but it h; The overbars that mark active-low pins are hard to read in the diagram. I took RESET and TRIGGER as ; The DISCHARGE pin types are not given in the datasheet. I classed them as passive, but they are open",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 9,
        "cost_usd": 0.2009,
        "at": "2026-10-18T14:27:43"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589837741900140544",
        "pages": 9,
        "sha256": "3b15b99d24b7b926",
        "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": "ht556crz.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": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ht556crz-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
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          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "468cefbfafff4d77f43a9fac1a15c12ed6129de68186a28dc49c2c7954606a1b",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}