DS42MB200TSQ

{
  "schema_version": 1,
  "type": "component",
  "slug": "ds42mb200tsq",
  "title": "DS42MB200TSQ",
  "brief": "Texas Instruments Signal Buffers, Repeaters, Splitters, WQFN-48-EP(7x7). 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",
    "interface",
    "ds42mb200tsq",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "DS42MB200TSQ",
    "manufacturer": "Texas Instruments",
    "package": "WQFN-48-EP(7x7)",
    "pin_count": 49,
    "category": "Interface",
    "subcategory": "Signal Buffers, Repeaters, Splitters",
    "datasheet": "https://www.ti.com/cn/lit/gpn/ds42mb200",
    "parts": {
      "symbol": "ds42mb200tsq.kicad_sym",
      "footprint": "ds42mb200tsq.kicad_mod",
      "model_3d": "ds42mb200tsq-hero.glb",
      "model_3d_plain": "ds42mb200tsq.glb",
      "model_3d_step": "ds42mb200tsq-etched.step",
      "model_3d_step_plain": "ds42mb200tsq.step",
      "lbr": "ds42mb200tsq.lbr"
    },
    "distributor_links": {
      "lcsc": "C2675125",
      "digikey": "DS42MB200TSQTR-ND",
      "mouser": "926-DS42MB200TSQ"
    },
    "distributor_check": {
      "checked_at": "2026-10-12T04:37:07Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "DS42MB200TSQTR-ND",
        "status": "found",
        "lifecycle": "Obsolete"
      },
      "mouser": {
        "pn": "926-DS42MB200TSQ",
        "status": "found",
        "lifecycle": "Obsolete"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "PREL_1",
        "type": "input",
        "description": "Selects bit 1 of the line-side driver pre-emphasis level for LO_1± per Table 3 (0, −3, −6, −9 dB); internally pulled high."
      },
      {
        "number": "2",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply pin, VCC = 3.3V ±5% (3.135 V to 3.465 V); connect through a low-inductance path and bypass with a 0.01 µF or 0.1 µF X7R size-0402 capacitor to the ground plane."
      },
      {
        "number": "3",
        "name": "SOB_0-",
        "type": "output",
        "description": "Inverting differential output of mux_0 at the switch-B side, with an internal 50Ω termination to VCC."
      },
      {
        "number": "4",
        "name": "SOB_0+",
        "type": "output",
        "description": "Non-inverting differential output of mux_0 at the switch-B side, with an internal 50Ω termination to VCC."
      },
      {
        "number": "5",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference pin; connect to the ground plane through a low-inductance path with a via placed close to the pad."
      },
      {
        "number": "6",
        "name": "LI_0+",
        "type": "input",
        "description": "Non-inverting differential input of port 0 at the line side, with an internal 50Ω to an internal reference voltage (AC-coupled, self-biased about 1.5 V)."
      },
      {
        "number": "7",
        "name": "LI_0-",
        "type": "input",
        "description": "Inverting differential input of port 0 at the line side, with an internal 50Ω to an internal reference voltage (AC-coupled, self-biased about 1.5 V)."
      },
      {
        "number": "8",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply pin, VCC = 3.3V ±5% (3.135 V to 3.465 V); connect through a low-inductance path and bypass with a 0.01 µF or 0.1 µF X7R size-0402 capacitor to the ground plane."
      },
      {
        "number": "9",
        "name": "LO_1+",
        "type": "output",
        "description": "Non-inverting differential output of port 1 at the line side, with an internal 50Ω termination to VCC."
      },
      {
        "number": "10",
        "name": "LO_1-",
        "type": "output",
        "description": "Inverting differential output of port 1 at the line side, with an internal 50Ω termination to VCC."
      },
      {
        "number": "11",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference pin; connect to the ground plane through a low-inductance path with a via placed close to the pad."
      },
      {
        "number": "12",
        "name": "PREL_0",
        "type": "input",
        "description": "Selects bit 0 of the line-side driver pre-emphasis level for LO_0± per Table 3 (0, −3, −6, −9 dB); internally pulled high."
      },
      {
        "number": "13",
        "name": "MUX_S1",
        "type": "input",
        "description": "3.3V LVCMOS control: logic low selects SIB_1± for mux_1, default (high, internally pulled high) selects SIA_1±."
      },
      {
        "number": "14",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply pin, VCC = 3.3V ±5% (3.135 V to 3.465 V); connect through a low-inductance path and bypass with a 0.01 µF or 0.1 µF X7R size-0402 capacitor to the ground plane."
      },
      {
        "number": "15",
        "name": "SIA_1-",
        "type": "input",
        "description": "Inverting differential input to mux_1 at the switch-A side, with an internal 50Ω to an internal reference voltage."
      },
      {
        "number": "16",
        "name": "SIA_1+",
        "type": "input",
        "description": "Non-inverting differential input to mux_1 at the switch-A side, with an internal 50Ω to an internal reference voltage."
      },
      {
        "number": "17",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference pin; connect to the ground plane through a low-inductance path with a via placed close to the pad."
      },
      {
        "number": "18",
        "name": "SIB_1-",
        "type": "input",
        "description": "Inverting differential input to mux_1 at the switch-B side, with an internal 50Ω to an internal reference voltage."
      },
      {
        "number": "19",
        "name": "SIB_1+",
        "type": "input",
        "description": "Non-inverting differential input to mux_1 at the switch-B side, with an internal 50Ω to an internal reference voltage."
      },
      {
        "number": "20",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply pin, VCC = 3.3V ±5% (3.135 V to 3.465 V); connect through a low-inductance path and bypass with a 0.01 µF or 0.1 µF X7R size-0402 capacitor to the ground plane."
      },
      {
        "number": "21",
        "name": "SOA_1-",
        "type": "output",
        "description": "Inverting differential output of mux_1 at the switch-A side, with an internal 50Ω termination to VCC."
      },
      {
        "number": "22",
        "name": "SOA_1+",
        "type": "output",
        "description": "Non-inverting differential output of mux_1 at the switch-A side, with an internal 50Ω termination to VCC."
      },
      {
        "number": "23",
        "name": "LB1A",
        "type": "input",
        "description": "A logic low enables the internal loopback from SIA_1± to SOA_1±; internally pulled high (normal mode, loopback disabled)."
      },
      {
        "number": "24",
        "name": "LB1B",
        "type": "input",
        "description": "A logic low enables the internal loopback from SIB_1± to SOB_1±; internally pulled high (normal mode, loopback disabled)."
      },
      {
        "number": "25",
        "name": "PRES_1",
        "type": "input",
        "description": "Selects bit 0 of the switch-side driver pre-emphasis level for SOA_1±, SOB_1± per Table 4 (0, −3, −6, −9 dB); internally pulled high."
      },
      {
        "number": "26",
        "name": "RSV",
        "type": "input",
        "description": "Reserved pin for factory testing; may be left open or tied to GND directly or through a pull-down resistor."
      },
      {
        "number": "27",
        "name": "SOB_1-",
        "type": "output",
        "description": "Inverting differential output of mux_1 at the switch-B side, with an internal 50Ω termination to VCC."
      },
      {
        "number": "28",
        "name": "SOB_1+",
        "type": "output",
        "description": "Non-inverting differential output of mux_1 at the switch-B side, with an internal 50Ω termination to VCC."
      },
      {
        "number": "29",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply pin, VCC = 3.3V ±5% (3.135 V to 3.465 V); connect through a low-inductance path and bypass with a 0.01 µF or 0.1 µF X7R size-0402 capacitor to the ground plane."
      },
      {
        "number": "30",
        "name": "LI_1+",
        "type": "input",
        "description": "Non-inverting differential input of port 1 at the line side, with an internal 50Ω to an internal reference voltage (AC-coupled, self-biased about 1.5 V)."
      },
      {
        "number": "31",
        "name": "LI_1-",
        "type": "input",
        "description": "Inverting differential input of port 1 at the line side, with an internal 50Ω to an internal reference voltage (AC-coupled, self-biased about 1.5 V)."
      },
      {
        "number": "32",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference pin; connect to the ground plane through a low-inductance path with a via placed close to the pad."
      },
      {
        "number": "33",
        "name": "LO_0+",
        "type": "output",
        "description": "Non-inverting differential output of port 0 at the line side, with an internal 50Ω termination to VCC."
      },
      {
        "number": "34",
        "name": "LO_0-",
        "type": "output",
        "description": "Inverting differential output of port 0 at the line side, with an internal 50Ω termination to VCC."
      },
      {
        "number": "35",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply pin, VCC = 3.3V ±5% (3.135 V to 3.465 V); connect through a low-inductance path and bypass with a 0.01 µF or 0.1 µF X7R size-0402 capacitor to the ground plane."
      },
      {
        "number": "36",
        "name": "PRES_0",
        "type": "input",
        "description": "Selects bit 1 of the switch-side driver pre-emphasis level for SOA_0±, SOB_0± per Table 4 (0, −3, −6, −9 dB); internally pulled high."
      },
      {
        "number": "37",
        "name": "MUX_S0",
        "type": "input",
        "description": "3.3V LVCMOS control: logic low selects SIB_0± for mux_0, default (high, internally pulled high) selects SIA_0±."
      },
      {
        "number": "38",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply pin, VCC = 3.3V ±5% (3.135 V to 3.465 V); connect through a low-inductance path and bypass with a 0.01 µF or 0.1 µF X7R size-0402 capacitor to the ground plane."
      },
      {
        "number": "39",
        "name": "SIA_0-",
        "type": "input",
        "description": "Inverting differential input to mux_0 at the switch-A side, with an internal 50Ω to an internal reference voltage."
      },
      {
        "number": "40",
        "name": "SIA_0+",
        "type": "input",
        "description": "Non-inverting differential input to mux_0 at the switch-A side, with an internal 50Ω to an internal reference voltage."
      },
      {
        "number": "41",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference pin; connect to the ground plane through a low-inductance path with a via placed close to the pad."
      },
      {
        "number": "42",
        "name": "SIB_0-",
        "type": "input",
        "description": "Inverting differential input to mux_0 at the switch-B side, with an internal 50Ω to an internal reference voltage."
      },
      {
        "number": "43",
        "name": "SIB_0+",
        "type": "input",
        "description": "Non-inverting differential input to mux_0 at the switch-B side, with an internal 50Ω to an internal reference voltage."
      },
      {
        "number": "44",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply pin, VCC = 3.3V ±5% (3.135 V to 3.465 V); connect through a low-inductance path and bypass with a 0.01 µF or 0.1 µF X7R size-0402 capacitor to the ground plane."
      },
      {
        "number": "45",
        "name": "SOA_0-",
        "type": "output",
        "description": "Inverting differential output of mux_0 at the switch-A side, with an internal 50Ω termination to VCC."
      },
      {
        "number": "46",
        "name": "SOA_0+",
        "type": "output",
        "description": "Non-inverting differential output of mux_0 at the switch-A side, with an internal 50Ω termination to VCC."
      },
      {
        "number": "47",
        "name": "LB0A",
        "type": "input",
        "description": "A logic low enables the internal loopback from SIA_0± to SOA_0±; internally pulled high (normal mode, loopback disabled)."
      },
      {
        "number": "48",
        "name": "LB0B",
        "type": "input",
        "description": "A logic low enables the internal loopback from SIB_0± to SOB_0±; internally pulled high (normal mode, loopback disabled)."
      },
      {
        "number": "49",
        "name": "EP",
        "type": "passive",
        "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-haiku-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The connection diagram on page 3 labels pin 36 as 'PreL1' and lists 'PreS0'/'PreS1' without numbers,; The exposed die attach pad is not numbered in the datasheet; it is listed only as 'GND DAP', so it i; RSV is listed with I/O type 'I' in the datasheet, but it is a reserved factory-test pin that may be ",
          "exposed pad 49 added from the footprint",
          "dropped thermal pad ['EP'] absent from footprint"
        ],
        "pages_sent": 17,
        "cost_usd": 0.1166,
        "at": "2026-10-12T04:36:49"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/ds42mb200",
        "pages": 17,
        "sha256": "01f3096e8156eae0",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 49,
        "described": 49,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
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      "footprint": "viewers/footprint.html"
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        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          7,
          7,
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        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "f2b38b0b4bf967c77e683e8d4599608b9f0503055ec535b93c4ebb5d0163e916",
        "checked": "2026-10-12",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ds42mb200tsq-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          7,
          7,
          0.77
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "d38a4354c9c524d380f1dafd0ac9f4e9c94e573f0ba38f7b70ab8bc3923d258f",
        "checked": "2026-10-12",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "WQFN-48-EP(7x7)",
      "Category": "Interface",
      "Pins": "49"
    }
  },
  "variants": [],
  "sections": [
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    "info"
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  "discovery_triggers": [
    "ds42mb200tsq"
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  "discovery_pitch": "DS42MB200TSQ (Texas Instruments) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray"
  },
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