FT4232H-56Q-REEL

{
  "schema_version": 1,
  "type": "component",
  "slug": "ft4232h-56q-reel",
  "title": "FT4232H-56Q-REEL",
  "brief": "FTDI USB ICs, QFN-56-EP(8x8). 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 ics",
    "ft4232h-56q-reel",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "FT4232H-56Q-REEL",
    "manufacturer": "FTDI",
    "package": "QFN-56-EP(8x8)",
    "pin_count": 57,
    "category": "Interface ICs",
    "subcategory": "USB ICs",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/50a17b51e702cb16e958807f2382f826.pdf",
    "parts": {
      "symbol": "ft4232h-56q-reel.kicad_sym",
      "footprint": "ft4232h-56q-reel.kicad_mod",
      "model_3d": "ft4232h-56q-reel-hero.glb",
      "model_3d_plain": "ft4232h-56q-reel-etched.glb",
      "model_3d_step": "ft4232h-56q-reel-etched.step",
      "model_3d_step_plain": "ft4232h-56q-reel.step",
      "lbr": "ft4232h-56q-reel.lbr"
    },
    "distributor_links": {
      "lcsc": "C2678035",
      "digikey": "768-1378-2-ND",
      "mouser": "895-FT4232H-56Q-REEL"
    },
    "distributor_check": {
      "checked_at": "2026-10-23T06:40:37Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "768-1378-2-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "895-FT4232H-56Q-REEL",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "EECS",
        "type": "bidirectional",
        "description": "EEPROM chip select, tri-state during device reset."
      },
      {
        "number": "2",
        "name": "VCORE",
        "type": "power_in",
        "description": "+1.8V core supply voltage input."
      },
      {
        "number": "3",
        "name": "OSCI",
        "type": "input",
        "description": "Oscillator input (12 MHz crystal)."
      },
      {
        "number": "4",
        "name": "OSCO",
        "type": "output",
        "description": "Oscillator output (12 MHz crystal)."
      },
      {
        "number": "5",
        "name": "VPHY",
        "type": "power_in",
        "description": "+3.3V internal USB PHY supply input; must come from a +3.3V regulator, not directly from USB supply, LC filtering recommended."
      },
      {
        "number": "6",
        "name": "REF",
        "type": "input",
        "description": "Current reference, connect via a 12K Ohm 1% resistor to GND."
      },
      {
        "number": "7",
        "name": "DM",
        "type": "bidirectional",
        "description": "USB Data Signal Minus."
      },
      {
        "number": "8",
        "name": "DP",
        "type": "bidirectional",
        "description": "USB Data Signal Plus."
      },
      {
        "number": "9",
        "name": "VPLL",
        "type": "power_in",
        "description": "+3.3V internal PHY PLL supply input; LC filtering recommended."
      },
      {
        "number": "10",
        "name": "TEST",
        "type": "input",
        "description": "IC test pin, connect to GND for normal operation."
      },
      {
        "number": "11",
        "name": "RESET#",
        "type": "input",
        "description": "Active-low reset input; tie to VCCIO (+3.3V) if not used."
      },
      {
        "number": "12",
        "name": "ADBUS0",
        "type": "bidirectional",
        "description": "Channel A bit 0: TXD in UART mode, D0 in bit-bang, TCK/SK in MPSSE."
      },
      {
        "number": "13",
        "name": "ADBUS1",
        "type": "bidirectional",
        "description": "Channel A bit 1: RXD in UART mode, D1 in bit-bang, TDI/DO in MPSSE."
      },
      {
        "number": "14",
        "name": "ADBUS2",
        "type": "bidirectional",
        "description": "Channel A bit 2: RTS# in UART mode, D2 in bit-bang, TDO/DI in MPSSE."
      },
      {
        "number": "15",
        "name": "ADBUS3",
        "type": "bidirectional",
        "description": "Channel A bit 3: CTS# in UART mode, D3 in bit-bang, TMS/CS in MPSSE."
      },
      {
        "number": "16",
        "name": "VCCIO",
        "type": "power_in",
        "description": "+3.3V I/O interface power supply input; all VCCIO pins must be connected or the device fails."
      },
      {
        "number": "17",
        "name": "ADBUS4",
        "type": "bidirectional",
        "description": "Channel A bit 4: DTR# in UART mode, D4 in bit-bang, GPIOL0 in MPSSE."
      },
      {
        "number": "18",
        "name": "ADBUS5",
        "type": "bidirectional",
        "description": "Channel A bit 5: DSR# in UART mode, D5 in bit-bang, GPIOL1 in MPSSE."
      },
      {
        "number": "19",
        "name": "ADBUS6",
        "type": "bidirectional",
        "description": "Channel A bit 6: DCD# in UART mode, D6 in bit-bang, GPIOL2 in MPSSE."
      },
      {
        "number": "20",
        "name": "ADBUS7",
        "type": "bidirectional",
        "description": "Channel A bit 7: RI#/TXDEN in UART mode (EEPROM selectable, default RI#), D7 in bit-bang, GPIOL3 in MPSSE."
      },
      {
        "number": "21",
        "name": "GND",
        "type": "power_in",
        "description": "0V ground input."
      },
      {
        "number": "22",
        "name": "BDBUS0",
        "type": "bidirectional",
        "description": "Channel B bit 0: TXD in UART mode, D0 in bit-bang, TCK/SK in MPSSE."
      },
      {
        "number": "23",
        "name": "BDBUS1",
        "type": "bidirectional",
        "description": "Channel B bit 1: RXD in UART mode, D1 in bit-bang, TDI/DO in MPSSE."
      },
      {
        "number": "24",
        "name": "BDBUS2",
        "type": "bidirectional",
        "description": "Channel B bit 2: RTS# in UART mode, D2 in bit-bang, TDO/DI in MPSSE."
      },
      {
        "number": "25",
        "name": "BDBUS3",
        "type": "bidirectional",
        "description": "Channel B bit 3: CTS# in UART mode, D3 in bit-bang, TMS/CS in MPSSE."
      },
      {
        "number": "26",
        "name": "BDBUS4",
        "type": "bidirectional",
        "description": "Channel B bit 4: DTR# in UART mode, D4 in bit-bang, GPIOL0 in MPSSE."
      },
      {
        "number": "27",
        "name": "BDBUS5",
        "type": "bidirectional",
        "description": "Channel B bit 5: DSR# in UART mode, D5 in bit-bang, GPIOL1 in MPSSE."
      },
      {
        "number": "28",
        "name": "BDBUS6",
        "type": "bidirectional",
        "description": "Channel B bit 6: DCD# in UART mode, D6 in bit-bang, GPIOL2 in MPSSE."
      },
      {
        "number": "29",
        "name": "BDBUS7",
        "type": "bidirectional",
        "description": "Channel B bit 7: RI#/TXDEN in UART mode (EEPROM selectable, default RI#), D7 in bit-bang, GPIOL3 in MPSSE."
      },
      {
        "number": "30",
        "name": "SUSPEND#",
        "type": "output",
        "description": "Active low when USB is in suspend mode."
      },
      {
        "number": "31",
        "name": "VCORE",
        "type": "power_in",
        "description": "+1.8V core supply voltage input."
      },
      {
        "number": "32",
        "name": "CDBUS0",
        "type": "bidirectional",
        "description": "Channel C bit 0: TXD in UART mode, D0 in bit-bang."
      },
      {
        "number": "33",
        "name": "CDBUS1",
        "type": "bidirectional",
        "description": "Channel C bit 1: RXD in UART mode, D1 in bit-bang."
      },
      {
        "number": "34",
        "name": "CDBUS2",
        "type": "bidirectional",
        "description": "Channel C bit 2: RTS# in UART mode, D2 in bit-bang."
      },
      {
        "number": "35",
        "name": "CDBUS3",
        "type": "bidirectional",
        "description": "Channel C bit 3: CTS# in UART mode, D3 in bit-bang."
      },
      {
        "number": "36",
        "name": "VCCIO",
        "type": "power_in",
        "description": "+3.3V I/O interface power supply input; all VCCIO pins must be connected or the device fails."
      },
      {
        "number": "37",
        "name": "CDBUS4",
        "type": "bidirectional",
        "description": "Channel C bit 4: DTR# in UART mode, D4 in bit-bang."
      },
      {
        "number": "38",
        "name": "CDBUS5",
        "type": "bidirectional",
        "description": "Channel C bit 5: DSR# in UART mode, D5 in bit-bang."
      },
      {
        "number": "39",
        "name": "CDBUS6",
        "type": "bidirectional",
        "description": "Channel C bit 6: DCD# in UART mode, D6 in bit-bang."
      },
      {
        "number": "40",
        "name": "CDBUS7",
        "type": "bidirectional",
        "description": "Channel C bit 7: RI#/TXDEN in UART mode (EEPROM selectable, default RI#), D7 in bit-bang."
      },
      {
        "number": "41",
        "name": "GND",
        "type": "power_in",
        "description": "0V ground input."
      },
      {
        "number": "42",
        "name": "DDBUS0",
        "type": "bidirectional",
        "description": "Channel D bit 0: TXD in UART mode, D0 in bit-bang."
      },
      {
        "number": "43",
        "name": "VREGOUT",
        "type": "power_out",
        "description": "+1.8V integrated regulator output; connect to VCORE with 3.3uF filter capacitor."
      },
      {
        "number": "44",
        "name": "VREGIN",
        "type": "power_in",
        "description": "+3.3V input to the integrated 1.8V voltage regulator."
      },
      {
        "number": "45",
        "name": "GND",
        "type": "power_in",
        "description": "0V ground input."
      },
      {
        "number": "46",
        "name": "DDBUS1",
        "type": "bidirectional",
        "description": "Channel D bit 1: RXD in UART mode, D1 in bit-bang."
      },
      {
        "number": "47",
        "name": "DDBUS2",
        "type": "bidirectional",
        "description": "Channel D bit 2: RTS# in UART mode, D2 in bit-bang."
      },
      {
        "number": "48",
        "name": "DDBUS3",
        "type": "bidirectional",
        "description": "Channel D bit 3: CTS# in UART mode, D3 in bit-bang."
      },
      {
        "number": "49",
        "name": "DDBUS4",
        "type": "bidirectional",
        "description": "Channel D bit 4: DTR# in UART mode, D4 in bit-bang."
      },
      {
        "number": "50",
        "name": "VCCIO",
        "type": "power_in",
        "description": "+3.3V I/O interface power supply input; all VCCIO pins must be connected or the device fails."
      },
      {
        "number": "51",
        "name": "DDBUS5",
        "type": "bidirectional",
        "description": "Channel D bit 5: DSR# in UART mode, D5 in bit-bang."
      },
      {
        "number": "52",
        "name": "DDBUS6",
        "type": "bidirectional",
        "description": "Channel D bit 6: DCD# in UART mode, D6 in bit-bang."
      },
      {
        "number": "53",
        "name": "DDBUS7",
        "type": "bidirectional",
        "description": "Channel D bit 7: RI#/TXDEN in UART mode (EEPROM selectable, default RI#), D7 in bit-bang."
      },
      {
        "number": "54",
        "name": "PWREN#",
        "type": "output",
        "description": "Active-low power-enable output: 0 = normal operation, 1 = USB suspend or device not configured."
      },
      {
        "number": "55",
        "name": "EEDATA",
        "type": "bidirectional",
        "description": "EEPROM data I/O; connect to EEPROM Data-In directly and to Data-Out via 2.2K, with Data-Out pulled to VCC via 10K; tri-state during reset."
      },
      {
        "number": "56",
        "name": "EECLK",
        "type": "output",
        "description": "Clock signal to EEPROM, tri-state during device reset."
      },
      {
        "number": "57",
        "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-sonnet-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The 56-pin VQFN exposed pad is not described in the supplied text. The only note on a central pad (p; Table 3.10 labels DM and DP as INPUT. The 64-pin table lists them as I/O, and they are USB different; The 56-pin table lists no separate AGND pin. Only GND pins 21, 41 and 45 are given."
        ],
        "pages_sent": 21,
        "cost_usd": 0.281,
        "at": "2026-10-23T06:40:22"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/50a17b51e702cb16e958807f2382f826.pdf",
        "pages": 45,
        "sha256": "19462d37a9d1e484",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 57,
        "described": 57,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "ft4232h-56q-reel.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          8,
          8,
          1
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "54eb482f12c9d8b70c1bfc78306a1c34f412f3556e225cbd097840e5abdb7981",
        "checked": "2026-10-23",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ft4232h-56q-reel-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          8,
          8,
          1
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "499d59411c85e979a09e9491d1807aea8a25135451b9d9640d93413597fbaffc",
        "checked": "2026-10-23",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "FTDI",
      "Package": "QFN-56-EP(8x8)",
      "Category": "Interface ICs",
      "Pins": "57"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "19462d37a9d1e484548d09172facc361513ce4569f2a63b7b1519ebbf717bca1",
      "rows": [
        {
          "name": "VCORE Operating Supply Voltage",
          "symbol": "VCORE",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 1.62,
          "typ": 1.8,
          "max": 1.98,
          "conditions": "",
          "source_page": 25,
          "source": "datasheet"
        },
        {
          "name": "VCCIO Operating Supply Voltage",
          "symbol": "VCCIO",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 2.97,
          "typ": 3.3,
          "max": 3.63,
          "conditions": "Cells are 5V tolerant",
          "source_page": 25,
          "source": "datasheet"
        },
        {
          "name": "VREGIN Voltage regulator input",
          "symbol": "VREGIN",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 3,
          "typ": 3.3,
          "max": 3.6,
          "conditions": "",
          "source_page": 25,
          "source": "datasheet"
        },
        {
          "name": "VREGOUT Voltage regulator output",
          "symbol": "VREGOUT",
          "kind": "electrical",
          "unit": "V",
          "min": 1.71,
          "typ": 1.8,
          "max": 1.89,
          "conditions": "",
          "source_page": 25,
          "source": "datasheet"
        },
        {
          "name": "Regulator Current",
          "symbol": "Ireg",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "VREGIN +3.3V",
          "source_page": 25,
          "source": "datasheet"
        },
        {
          "name": "Core Operating Supply Current",
          "symbol": "Icc1",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 70,
          "max": null,
          "conditions": "VCORE = +1.8V Normal Operation",
          "source_page": 25,
          "source": "datasheet"
        },
        {
          "name": "Core Reset Supply Current",
          "symbol": "Icc1r",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 5,
          "max": null,
          "conditions": "VCORE = +1.8V Device in reset state.",
          "source_page": 25,
          "source": "datasheet"
        },
        {
          "name": "Core Suspend Supply Current",
          "symbol": "Icc1s",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 500,
          "conditions": "VCORE = +1.8V USB Suspend",
          "source_page": 25,
          "source": "datasheet"
        },
        {
          "name": "Storage Temperature",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 25,
          "source": "datasheet"
        },
        {
          "name": "Ambient Operating Temperature (Power Applied)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "",
          "source_page": 25,
          "source": "datasheet"
        },
        {
          "name": "VCORE Supply Voltage",
          "symbol": "VCORE",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 2,
          "conditions": "",
          "source_page": 25,
          "source": "datasheet"
        },
        {
          "name": "VCCIO IO Voltage",
          "symbol": "VCCIO",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 4,
          "conditions": "",
          "source_page": 25,
          "source": "datasheet"
        },
        {
          "name": "DC Input Voltage - USBDP and USBDM",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.5,
          "typ": null,
          "max": 3.63,
          "conditions": "",
          "source_page": 25,
          "source": "datasheet"
        },
        {
          "name": "DC Input Voltage - High Impedance Bi-directional",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 5.8,
          "conditions": "powered from VCCIO",
          "source_page": 25,
          "source": "datasheet"
        },
        {
          "name": "DC Input Voltage - All Other Inputs",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.5,
          "typ": null,
          "max": null,
          "conditions": "upper limit printed as VCCIO +0.5",
          "source_page": 25,
          "source": "datasheet"
        },
        {
          "name": "DC Output Current - Outputs",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 16,
          "conditions": "",
          "source_page": 25,
          "source": "datasheet"
        },
        {
          "name": "Output Voltage High (4mA)",
          "symbol": "Voh",
          "kind": "electrical",
          "unit": "V",
          "min": 2.4,
          "typ": 3.14,
          "max": null,
          "conditions": "Ioh = +/-2mA, I/O Drive strength = 4mA",
          "source_page": 26,
          "source": "datasheet"
        },
        {
          "name": "Output Voltage High (8mA)",
          "symbol": "Voh",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 3.2,
          "max": null,
          "conditions": "I/O Drive strength = 8mA",
          "source_page": 26,
          "source": "datasheet"
        },
        {
          "name": "Output Voltage High (12mA)",
          "symbol": "Voh",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 3.22,
          "max": null,
          "conditions": "I/O Drive strength = 12mA",
          "source_page": 26,
          "source": "datasheet"
        },
        {
          "name": "Output Voltage High (16mA)",
          "symbol": "Voh",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 3.22,
          "max": null,
          "conditions": "I/O Drive strength = 16mA",
          "source_page": 26,
          "source": "datasheet"
        },
        {
          "name": "Output Voltage Low (4mA)",
          "symbol": "Vol",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 0.18,
          "max": 0.4,
          "conditions": "Iol = +/-2mA, I/O Drive strength = 4mA",
          "source_page": 26,
          "source": "datasheet"
        },
        {
          "name": "Output Voltage Low (8mA)",
          "symbol": "Vol",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 0.12,
          "max": null,
          "conditions": "I/O Drive strength = 8mA",
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