CD4541BM96

{
  "schema_version": 1,
  "type": "component",
  "slug": "cd4541bm96",
  "title": "CD4541BM96",
  "brief": "Texas Instruments Timers / Clock Oscillators, SOIC-14. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "rtc",
    "cd4541bm96"
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  "component": {
    "mpn": "CD4541BM96",
    "manufacturer": "Texas Instruments",
    "package": "SOIC-14",
    "pin_count": 14,
    "category": "RTC",
    "subcategory": "Timers / Clock Oscillators",
    "datasheet": "https://www.ti.com/lit/ds/symlink/cd4541bm96.pdf",
    "parts": {
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      "footprint": "cd4541bm96.kicad_mod",
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    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "RTC",
        "type": "passive",
        "description": "Timing resistor (RTC) connection for the internal RC oscillator. RTC together with CTC sets the oscillator frequency f = 1/(2.3 * RTC * CTC), valid between 1kHz and 100kHz. Can also serve as an external clock input on pin 3 when RS is used as the clock pin."
      },
      {
        "number": "2",
        "name": "CTC",
        "type": "passive",
        "description": "Timing capacitor (CTC) connection for the internal RC oscillator. Sets the oscillator frequency together with RTC per f = 1/(2.3 * RTC * CTC)."
      },
      {
        "number": "3",
        "name": "RS",
        "type": "passive",
        "description": "Oscillator series/isolation resistor input. RS is recommended to be >= 10 kΩ and approximately 2*RTC. Pin 3 can also be driven with an external clock in place of the internal oscillator."
      },
      {
        "number": "4",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection."
      },
      {
        "number": "5",
        "name": "AUTO_RESET",
        "type": "input",
        "description": "Auto-reset enable input. Logic 0 enables the automatic power-on reset circuit; logic 1 disables auto reset. With AUTO RESET enabled, an additional supply current is drawn (typ 7uA @5V, 30uA @10V, 80uA @15V). VDD should be > 5V for reliable auto power-on reset."
      },
      {
        "number": "6",
        "name": "MASTER_RESET",
        "type": "input",
        "description": "Active-high master reset. A logic 1 pulse resets the internal counters and latch (Master Reset On); logic 0 = Master Reset Off. Minimum reset pulse width is 300 ns @5V, 100 ns @10V, 85 ns @15V (typ)."
      },
      {
        "number": "7",
        "name": "VSS",
        "type": "power_in",
        "description": "Negative supply / ground reference (0 V). All voltages are referenced to VSS."
      },
      {
        "number": "8",
        "name": "OUTPUT",
        "type": "output",
        "description": "Timer output (Q or Q-bar depending on Q/Q-SELECT). Drives up to six low-power TTL loads, three low-power Schottky loads, or six HTL loads over the rated temperature range. Symmetrical output resistance typically 100 Ω at VDD = 15V."
      },
      {
        "number": "9",
        "name": "Q/Q_SELECT",
        "type": "input",
        "description": "Output polarity select. Logic 0 = output initially low after reset (Q); logic 1 = output initially high after reset (Q-bar)."
      },
      {
        "number": "10",
        "name": "MODE",
        "type": "input",
        "description": "Output mode select. Logic 0 selects single-transition mode: after MASTER RESET the output changes state once after 2^(N-1) counts and remains until the next MASTER RESET or MODE=1. Logic 1 selects recycle mode: continuous square wave with frequency = oscillator/2^N."
      },
      {
        "number": "11",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection."
      },
      {
        "number": "12",
        "name": "A",
        "type": "input",
        "description": "Frequency (stage) select input A. Together with B selects the counter tap N per the Frequency Selection Table: A/B = 00 -> N=13 (2^13 = 8192), 01 -> N=10 (1024), 10 -> N=8 (256), 11 -> N=16 (65536)."
      },
      {
        "number": "13",
        "name": "B",
        "type": "input",
        "description": "Frequency (stage) select input B. See input A for the A/B -> N mapping."
      },
      {
        "number": "14",
        "name": "VDD",
        "type": "power_in",
        "description": "Positive supply. Operating range 3V (min) to 18V (typ), absolute max 20V referenced to VSS. Quiescent current 0.04 uA typ (5 uA max at 5V, 20 uA max at 15V)."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/cd4541bm96.pdf",
        "pages": 17,
        "sha256": "d3a993c65b014aa0",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 14,
        "described": 14,
        "cites_pages": true,
        "refuses_to_fabricate": true
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    "logic": {
      "family_id": "CD4541",
      "logic_family": "CD4000",
      "function_code": "4541",
      "function_class": null,
      "function_name": null,
      "manufacturer": "Texas Instruments",
      "is_specialty": false
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "3b9a775da256c8afcc28dcddfbc2eb3f266107fe61ce8446d96f2c52b6f44a70",
        "checked": "2026-10-07",
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "SOIC-14",
      "Category": "RTC",
      "Pins": "14"
    }
  },
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  "discovery_pitch": "CD4541BM96 (Texas Instruments) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
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  "updated_at": "2026-09-24T18:52:04.270Z"
}