CD4541BNSR

{
  "schema_version": 1,
  "type": "component",
  "slug": "cd4541bnsr",
  "title": "CD4541BNSR",
  "brief": "Texas Instruments Timers / Clock Oscillators, SOP-14-208mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "rtc-clock chip",
    "cd4541bnsr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "CD4541BNSR",
    "manufacturer": "Texas Instruments",
    "package": "SOP-14-208mil",
    "pin_count": 14,
    "category": "RTC/Clock Chip",
    "subcategory": "Timers / Clock Oscillators",
    "datasheet": "https://www.ti.com/cn/lit/gpn/cd4541b",
    "parts": {
      "symbol": "cd4541bnsr.kicad_sym",
      "footprint": "cd4541bnsr.kicad_mod",
      "model_3d": "cd4541bnsr-hero.glb",
      "model_3d_plain": "cd4541bnsr.glb",
      "model_3d_step": "cd4541bnsr-etched.step",
      "model_3d_step_plain": "cd4541bnsr.step",
      "lbr": "cd4541bnsr.lbr"
    },
    "distributor_links": {
      "lcsc": 1847956,
      "digikey": "296-CD4541BNSRTR-ND",
      "mouser": "595-CD4541BNSR"
    },
    "distributor_check": {
      "checked_at": "2026-10-03T05:22:40Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-CD4541BNSRTR-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "595-CD4541BNSR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "RTC",
        "type": "passive",
        "description": "Oscillator timing resistor external connection; resistor value in combination with CTC capacitor sets oscillator frequency per f = 1/(2.3 × RTC × CTC)."
      },
      {
        "number": "2",
        "name": "CTC",
        "type": "passive",
        "description": "Oscillator timing capacitor external connection; capacitor value in combination with RTC resistor sets oscillator frequency per f = 1/(2.3 × RTC × CTC)."
      },
      {
        "number": "3",
        "name": "RS",
        "type": "input",
        "description": "External oscillator series resistor terminal or external clock input; can accept external clock signal applied to replace internal oscillator circuit."
      },
      {
        "number": "4",
        "name": "NC",
        "type": "unconnected",
        "description": "No connection; internally unconnected pin."
      },
      {
        "number": "5",
        "name": "AUTO RESET",
        "type": "input",
        "description": "Automatic power-on reset control input; logic 0 enables automatic reset circuit, logic 1 disables auto reset to reduce power dissipation."
      },
      {
        "number": "6",
        "name": "MASTER RESET",
        "type": "input",
        "description": "Manual reset input; positive pulse resets all internal counters and latches and sets output to high state."
      },
      {
        "number": "7",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground and negative supply terminal reference."
      },
      {
        "number": "8",
        "name": "OUTPUT",
        "type": "output",
        "description": "Timer output terminal; provides Q or Q output from selected counter stage (8th, 10th, 13th, or 16th stage selected by A and B inputs)."
      },
      {
        "number": "9",
        "name": "Q/Q SELECT",
        "type": "input",
        "description": "Output polarity selection input; determines whether output is normal Q or inverted Q from the selected counter stage."
      },
      {
        "number": "10",
        "name": "MODE",
        "type": "input",
        "description": "Mode selection input; logic 1 selects recycle (frequency divider) mode for continuous square wave output, logic 0 selects single-transition timer mode."
      },
      {
        "number": "11",
        "name": "NC",
        "type": "unconnected",
        "description": "No connection; internally unconnected pin."
      },
      {
        "number": "12",
        "name": "A",
        "type": "input",
        "description": "Frequency selection input A; used with B input to select which counter stage (8th, 10th, 13th, or 16th) provides the output."
      },
      {
        "number": "13",
        "name": "B",
        "type": "input",
        "description": "Frequency selection input B; used with A input to select which counter stage (8th, 10th, 13th, or 16th) provides the output."
      },
      {
        "number": "14",
        "name": "VDD",
        "type": "power_in",
        "description": "Positive supply voltage terminal; device operates from 3V minimum to 20V maximum rated over -55°C to 125°C temperature range."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-haiku-4-5-20251001",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Discrepancy between pinout diagram text (PAGE 1) and Figure 2 functional circuit (PAGE 2) regarding ; Pinout diagram formatting on PAGE 1 shows VSS and VDD labels on the left side layout, but functional"
        ],
        "pages_sent": 22,
        "cost_usd": 0.1778,
        "at": "2026-10-03T05:22:16"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/cd4541b",
        "pages": 22,
        "sha256": "1c648629cd0ba6ed",
        "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"
    }
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "SOP-14-208mil",
      "Category": "RTC/Clock Chip",
      "Pins": "14"
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "cd4541bnsr"
  ],
  "discovery_pitch": "CD4541BNSR (Texas Instruments) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
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    "cd4541bnsr.step",
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  "visibility": {
    "public": true
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}