TMS320F28333PGFA

{
  "slug": "tms320f28333pgfa",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Microcontrollers (MCU/MPU/SOC), LQFP-176(24x24). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "embedded processors & controllers",
    "tms320f28333pgfa",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "tms320f28333pgfa.kicad_sym",
    "tms320f28333pgfa.kicad_mod",
    "tms320f28333pgfa.glb",
    "tms320f28333pgfa.step",
    "tms320f28333pgfa.lbr",
    "docs/hero.png",
    "docs/tms320f28333pgfa-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "tms320f28333pgfa-hero.glb",
    "tms320f28333pgfa-hero.overlay.json"
  ],
  "component": {
    "mpn": "TMS320F28333PGFA",
    "manufacturer": "Texas Instruments",
    "package": "LQFP-176(24x24)",
    "pin_count": 176,
    "category": "Embedded Processors & Controllers",
    "subcategory": "Microcontrollers (MCU/MPU/SOC)",
    "datasheet": "https://www.ti.com/cn/lit/gpn/tms320f28235",
    "parts": {
      "symbol": "tms320f28333pgfa.kicad_sym",
      "footprint": "tms320f28333pgfa.kicad_mod",
      "model_3d": "tms320f28333pgfa-hero.glb",
      "model_3d_plain": "tms320f28333pgfa.glb",
      "model_3d_step": "tms320f28333pgfa-etched.step",
      "model_3d_step_plain": "tms320f28333pgfa.step",
      "lbr": "tms320f28333pgfa.lbr"
    },
    "distributor_links": {
      "lcsc": "C2867127",
      "digikey": "TMS320F28333PGFA-ND",
      "mouser": "595-TMS320F28333PGFA"
    },
    "distributor_check": {
      "checked_at": "2026-10-08T23:31:13Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "TMS320F28333PGFA-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "595-TMS320F28333PGFA",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "GPIO30/CANRXA/XA18",
        "type": "bidirectional",
        "description": "General-purpose I/O 30 (I/O/Z); alternates are eCAN-A receive (input) and external interface address line 18 (output)."
      },
      {
        "number": "2",
        "name": "GPIO29/SCITXDA/XA19",
        "type": "bidirectional",
        "description": "General-purpose I/O 29 (I/O/Z); alternates are SCI-A transmit data (output) and external interface address line 19 (output)."
      },
      {
        "number": "3",
        "name": "VSS",
        "type": "power_in",
        "description": "Digital ground pin (0 V reference)."
      },
      {
        "number": "4",
        "name": "VDD",
        "type": "power_in",
        "description": "CPU and logic digital core supply; 1.71 V to 1.89 V (1.8 V nominal) for the 100 MHz device."
      },
      {
        "number": "5",
        "name": "GPIO0/EPWM1A",
        "type": "bidirectional",
        "description": "General-purpose I/O 0 (I/O/Z), pull-up disabled at reset; alternate is ePWM1 output A and HRPWM channel (output)."
      },
      {
        "number": "6",
        "name": "GPIO1/EPWM1B/ECAP6/MFSRB",
        "type": "bidirectional",
        "description": "General-purpose I/O 1 (I/O/Z), pull-up disabled at reset; alternates are ePWM1 output B (output), eCAP6 input/output, and McBSP-B receive frame sync (I/O)."
      },
      {
        "number": "7",
        "name": "GPIO2/EPWM2A",
        "type": "bidirectional",
        "description": "General-purpose I/O 2 (I/O/Z), pull-up disabled at reset; alternate is ePWM2 output A and HRPWM channel (output)."
      },
      {
        "number": "8",
        "name": "VSS",
        "type": "power_in",
        "description": "Digital ground pin (0 V reference)."
      },
      {
        "number": "9",
        "name": "VDDIO",
        "type": "power_in",
        "description": "Digital I/O supply; 3.135 V to 3.465 V (3.3 V nominal)."
      },
      {
        "number": "10",
        "name": "GPIO3/EPWM2B/ECAP5/MCLKRB",
        "type": "bidirectional",
        "description": "General-purpose I/O 3 (I/O/Z), pull-up disabled at reset; alternates are ePWM2 output B (output), eCAP5 input/output, and McBSP-B receive clock (I/O)."
      },
      {
        "number": "11",
        "name": "GPIO4/EPWM3A",
        "type": "bidirectional",
        "description": "General-purpose I/O 4 (I/O/Z), pull-up disabled at reset; alternate is ePWM3 output A and HRPWM channel (output)."
      },
      {
        "number": "12",
        "name": "GPIO5/EPWM3B/MFSRA/ECAP1",
        "type": "bidirectional",
        "description": "General-purpose I/O 5 (I/O/Z), pull-up disabled at reset; alternates are ePWM3 output B (output), McBSP-B receive frame sync (I/O), and eCAP1 input/output."
      },
      {
        "number": "13",
        "name": "GPIO6/EPWM4A/EPWMSYNCI/EPWMSYNCO",
        "type": "bidirectional",
        "description": "General-purpose I/O 6 (I/O/Z), pull-up disabled at reset; alternates are ePWM4 output A and HRPWM channel (output), external ePWM sync pulse input (input), and external ePWM sync pulse output (output)."
      },
      {
        "number": "14",
        "name": "VSS",
        "type": "power_in",
        "description": "Digital ground pin (0 V reference)."
      },
      {
        "number": "15",
        "name": "VDD",
        "type": "power_in",
        "description": "CPU and logic digital core supply; 1.71 V to 1.89 V (1.8 V nominal) for the 100 MHz device."
      },
      {
        "number": "16",
        "name": "GPIO7/EPWM4B/MCLKRA/ECAP2",
        "type": "bidirectional",
        "description": "General-purpose I/O 7 (I/O/Z), pull-up disabled at reset; alternates are ePWM4 output B (output), McBSP-A receive clock (I/O), and eCAP2 input/output."
      },
      {
        "number": "17",
        "name": "GPIO8/EPWM5A/CANTXB/ADCSOCAO",
        "type": "bidirectional",
        "description": "General-purpose I/O 8 (I/O/Z), pull-up disabled at reset; alternates are ePWM5 output A and HRPWM channel (output), eCAN-B transmit (output), and ADC start-of-conversion A (output)."
      },
      {
        "number": "18",
        "name": "GPIO9/EPWM5B/SCITXDB/ECAP3",
        "type": "bidirectional",
        "description": "General-purpose I/O 9 (I/O/Z), pull-up disabled at reset; alternates are ePWM5 output B (output), SCI-B transmit data (output), and eCAP3 input/output."
      },
      {
        "number": "19",
        "name": "GPIO10/EPWM6A/CANRXB/ADCSOCBO",
        "type": "bidirectional",
        "description": "General-purpose I/O 10 (I/O/Z), pull-up disabled at reset; alternates are ePWM6 output A and HRPWM channel (output), eCAN-B receive (input), and ADC start-of-conversion B (output)."
      },
      {
        "number": "20",
        "name": "GPIO11/EPWM6B/SCIRXDB/ECAP4",
        "type": "bidirectional",
        "description": "General-purpose I/O 11 (I/O/Z), pull-up disabled at reset; alternates are ePWM6 output B (output), SCI-B receive data (I/O), and eCAP4 input/output."
      },
      {
        "number": "21",
        "name": "GPIO12",
        "type": "bidirectional",
        "description": "General-purpose I/O 12 (I/O/Z); alternates are trip-zone input 1 (input), eCAN-B transmit (output), and McBSP-B transmit serial data (output)."
      },
      {
        "number": "22",
        "name": "VSS",
        "type": "power_in",
        "description": "Digital ground pin (0 V reference)."
      },
      {
        "number": "23",
        "name": "VDD",
        "type": "power_in",
        "description": "CPU and logic digital core supply; 1.71 V to 1.89 V (1.8 V nominal) for the 100 MHz device."
      },
      {
        "number": "24",
        "name": "GPIO13",
        "type": "bidirectional",
        "description": "General-purpose I/O 13 (I/O/Z); alternates are trip-zone input 2 (input), eCAN-B receive (input), and McBSP-B receive serial data (input)."
      },
      {
        "number": "25",
        "name": "GPIO14",
        "type": "bidirectional",
        "description": "General-purpose I/O 14 (I/O/Z); alternates are trip-zone input 3 (input), XINTF external hold request XHOLD (input, active low, which releases the external bus when asserted), SCI-B transmit (output), and McBSP-B transmit clock (I/O)."
      },
      {
        "number": "26",
        "name": "GPIO15",
        "type": "bidirectional",
        "description": "General-purpose I/O 15 (I/O/Z); the TZ4 function is selected when configured as input and XHOLDA (output, active low hold acknowledge) when configured as output; other alternates are SCI-B receive (input) and McBSP-B transmit frame sync (I/O)."
      },
      {
        "number": "27",
        "name": "GPIO16/SPISIMOA/CANTXB/TZ5",
        "type": "bidirectional",
        "description": "General-purpose I/O 16 (I/O/Z); alternates are SPI-A slave-in/master-out (I/O), eCAN-B transmit (output), and trip-zone input 5 (input)."
      },
      {
        "number": "28",
        "name": "GPIO17/SPISOMIA/CANRXB/TZ6",
        "type": "bidirectional",
        "description": "General-purpose I/O 17 (I/O/Z); alternates are SPI-A slave-out/master-in (I/O), eCAN-B receive (input), and trip-zone input 6 (input)."
      },
      {
        "number": "29",
        "name": "VDD",
        "type": "power_in",
        "description": "CPU and logic digital core supply; 1.71 V to 1.89 V (1.8 V nominal) for the 100 MHz device."
      },
      {
        "number": "30",
        "name": "VSS",
        "type": "power_in",
        "description": "Digital ground pin (0 V reference)."
      },
      {
        "number": "31",
        "name": "VDD1A18",
        "type": "power_in",
        "description": "ADC analog core supply; 1.71 V to 1.89 V (1.8 V nominal) at 100 MHz."
      },
      {
        "number": "32",
        "name": "VSS1AGND",
        "type": "power_in",
        "description": "ADC analog ground pin (0 V reference)."
      },
      {
        "number": "33",
        "name": "VSSA2",
        "type": "power_in",
        "description": "ADC analog ground pin (0 V reference)."
      },
      {
        "number": "34",
        "name": "VDDA2",
        "type": "power_in",
        "description": "ADC analog supply; 3.135 V to 3.465 V (3.3 V nominal)."
      },
      {
        "number": "35",
        "name": "ADCINA7",
        "type": "input",
        "description": "ADC group A, channel 7 analog input (0 V to 3 V with respect to ADCLO)."
      },
      {
        "number": "36",
        "name": "ADCINA6",
        "type": "input",
        "description": "ADC group A, channel 6 analog input (0 V to 3 V with respect to ADCLO)."
      },
      {
        "number": "37",
        "name": "ADCINA5",
        "type": "input",
        "description": "ADC group A, channel 5 analog input (0 V to 3 V with respect to ADCLO)."
      },
      {
        "number": "38",
        "name": "ADCINA4",
        "type": "input",
        "description": "ADC group A, channel 4 analog input (0 V to 3 V with respect to ADCLO)."
      },
      {
        "number": "39",
        "name": "ADCINA3",
        "type": "input",
        "description": "ADC group A, channel 3 analog input (0 V to 3 V with respect to ADCLO)."
      },
      {
        "number": "40",
        "name": "ADCINA2",
        "type": "input",
        "description": "ADC group A, channel 2 analog input (0 V to 3 V with respect to ADCLO)."
      },
      {
        "number": "41",
        "name": "ADCINA1",
        "type": "input",
        "description": "ADC group A, channel 1 analog input (0 V to 3 V with respect to ADCLO)."
      },
      {
        "number": "42",
        "name": "ADCINA0",
        "type": "input",
        "description": "ADC group A, channel 0 analog input (0 V to 3 V with respect to ADCLO)."
      },
      {
        "number": "43",
        "name": "ADCLO",
        "type": "input",
        "description": "ADC low reference, connected to analog ground."
      },
      {
        "number": "44",
        "name": "VSSAIO",
        "type": "power_in",
        "description": "ADC analog I/O ground pin (0 V reference)."
      },
      {
        "number": "45",
        "name": "VDDAIO",
        "type": "power_in",
        "description": "ADC analog I/O supply; 3.135 V to 3.465 V (3.3 V nominal)."
      },
      {
        "number": "46",
        "name": "ADCINB0",
        "type": "input",
        "description": "ADC group B, channel 0 analog input (0 V to 3 V with respect to ADCLO)."
      },
      {
        "number": "47",
        "name": "ADCINB1",
        "type": "input",
        "description": "ADC group B, channel 1 analog input (0 V to 3 V with respect to ADCLO)."
      },
      {
        "number": "48",
        "name": "ADCINB2",
        "type": "input",
        "description": "ADC group B, channel 2 analog input (0 V to 3 V with respect to ADCLO)."
      },
      {
        "number": "49",
        "name": "ADCINB3",
        "type": "input",
        "description": "ADC group B, channel 3 analog input (0 V to 3 V with respect to ADCLO)."
      },
      {
        "number": "50",
        "name": "ADCINB4",
        "type": "input",
        "description": "ADC group B, channel 4 analog input (0 V to 3 V with respect to ADCLO)."
      },
      {
        "number": "51",
        "name": "ADCINB5",
        "type": "input",
        "description": "ADC group B, channel 5 analog input (0 V to 3 V with respect to ADCLO)."
      },
      {
        "number": "52",
        "name": "ADCINB6",
        "type": "input",
        "description": "ADC group B, channel 6 analog input (0 V to 3 V with respect to ADCLO)."
      },
      {
        "number": "53",
        "name": "ADCINB7",
        "type": "input",
        "description": "ADC group B, channel 7 analog input (0 V to 3 V with respect to ADCLO)."
      },
      {
        "number": "54",
        "name": "ADCREFIN",
        "type": "input",
        "description": "External ADC reference input; the datasheet specifies 1.024 V, 1.500 V or 2.048 V from a precision source when used."
      },
      {
        "number": "55",
        "name": "ADCREFM",
        "type": "output",
        "description": "Internal ADC reference medium output; requires a 2.2 µF ceramic bypass capacitor with ESR below 1.5 Ω to analog ground."
      },
      {
        "number": "56",
        "name": "ADCREFP",
        "type": "output",
        "description": "Internal ADC reference positive output; requires a 2.2 µF ceramic bypass capacitor with ESR below 1.5 Ω to analog ground."
      },
      {
        "number": "57",
        "name": "ADCRESEXT",
        "type": "passive",
        "description": "ADC external current bias resistor pin; a 22 kΩ resistor must be connected to analog ground."
      },
      {
        "number": "58",
        "name": "VSS2AGND",
        "type": "power_in",
        "description": "ADC analog ground pin (0 V reference)."
      },
      {
        "number": "59",
        "name": "VDD2A18",
        "type": "power_in",
        "description": "ADC analog core supply; 1.71 V to 1.89 V (1.8 V nominal) at 100 MHz."
      },
      {
        "number": "60",
        "name": "VSS",
        "type": "power_in",
        "description": "Digital ground pin (0 V reference)."
      },
      {
        "number": "61",
        "name": "VDD",
        "type": "power_in",
        "description": "CPU and logic digital core supply; 1.71 V to 1.89 V (1.8 V nominal) for the 100 MHz device."
      },
      {
        "number": "62",
        "name": "GPIO18/SPICLKA/SCITXDB/CANRXA",
        "type": "bidirectional",
        "description": "General-purpose I/O 18 (I/O/Z); alternates are SPI-A clock (I/O), SCI-B transmit (output), and eCAN-A receive (input)."
      },
      {
        "number": "63",
        "name": "GPIO19",
        "type": "bidirectional",
        "description": "General-purpose I/O 19 (I/O/Z); alternates are SPI-A slave transmit enable (I/O), SCI-B receive (input), and eCAN-A transmit (output)."
      },
      {
        "number": "64",
        "name": "GPIO20/EQEP1A/MDXA/CANTXB",
        "type": "bidirectional",
        "description": "General-purpose I/O 20 (I/O/Z); alternates are eQEP1 input A (input), McBSP-A transmit serial data (output), and eCAN-B transmit (output)."
      },
      {
        "number": "65",
        "name": "GPIO21/EQEP1B/MDRA/CANRXB",
        "type": "bidirectional",
        "description": "General-purpose I/O 21 (I/O/Z); alternates are eQEP1 input B (input), McBSP-A receive serial data (input), and eCAN-B receive (input)."
      },
      {
        "number": "66",
        "name": "GPIO22/EQEP1S/MCLKXA/SCITXDB",
        "type": "bidirectional",
        "description": "General-purpose I/O 22 (I/O/Z); alternates are eQEP1 strobe (I/O), McBSP-A transmit clock (I/O), and SCI-B transmit (output)."
      },
      {
        "number": "67",
        "name": "GPIO23/EQEP1I/MFSXA/SCIRXDB",
        "type": "bidirectional",
        "description": "General-purpose I/O 23 (I/O/Z); alternates are eQEP1 index (I/O), McBSP-A transmit frame sync (I/O), and SCI-B receive (input)."
      },
      {
        "number": "68",
        "name": "GPIO24/ECAP1/EQEP2A/MDXB",
        "type": "bidirectional",
        "description": "General-purpose I/O 24 (I/O/Z); alternates are eCAP1 input/output (I/O), eQEP2 input A (input), and McBSP-B transmit serial data (output)."
      },
      {
        "number": "69",
        "name": "GPIO25/ECAP2/EQEP2B/MDRB",
        "type": "bidirectional",
        "description": "General-purpose I/O 25 (I/O/Z); alternates are eCAP2 input/output (I/O), eQEP2 input B (input), and McBSP-B receive serial data (input)."
      },
      {
        "number": "70",
        "name": "VSS",
        "type": "power_in",
        "description": "Digital ground pin (0 V reference)."
      },
      {
        "number": "71",
        "name": "VDDIO",
        "type": "power_in",
        "description": "Digital I/O supply; 3.135 V to 3.465 V (3.3 V nominal)."
      },
      {
        "number": "72",
        "name": "GPIO26/ECAP3/EQEP2I/MCLKXB",
        "type": "bidirectional",
        "description": "General-purpose I/O 26 (I/O/Z); alternates are eCAP3 input/output (I/O), eQEP2 index (I/O), and McBSP-B transmit clock (I/O)."
      },
      {
        "number": "73",
        "name": "GPIO27/ECAP4/EQEP2S/MFSXB",
        "type": "bidirectional",
        "description": "General-purpose I/O 27 (I/O/Z); alternates are eCAP4 input/output (I/O), eQEP2 strobe (I/O), and McBSP-B transmit frame sync (I/O)."
      },
      {
        "number": "74",
        "name": "GPIO32/SDAA/EPWMSYNCI/ADCSOCAO",
        "type": "bidirectional",
        "description": "General-purpose I/O 32 (I/O/Z); alternates are I2C data open-drain bidirectional (I/OD), external ePWM sync pulse input (input), and ADC start-of-conversion A (output)."
      },
      {
        "number": "75",
        "name": "GPIO33/SCLA/EPWMSYNCO/ADCSOCBO",
        "type": "bidirectional",
        "description": "General-purpose I/O 33 (I/O/Z); alternates are I2C clock open-drain bidirectional (I/OD), external ePWM sync pulse output (output), and ADC start-of-conversion B (output)."
      },
      {
        "number": "76",
        "name": "TDI",
        "type": "input",
        "description": "JTAG test data input with internal pull-up, sampled on the rising edge of TCK."
      },
      {
        "number": "77",
        "name": "TDO",
        "type": "tri_state",
        "description": "JTAG scan test data output, shifted out on the falling edge of TCK (8 mA driver, O/Z)."
      },
      {
        "number": "78",
        "name": "TRST",
        "type": "input",
        "description": "JTAG test reset with internal pull-down; must be held low during normal operation and requires an external pull-down (typically 2.2 kΩ)."
      },
      {
        "number": "79",
        "name": "TMS",
        "type": "input",
        "description": "JTAG test mode select with internal pull-up, clocked on the rising edge of TCK in the TAP controller."
      },
      {
        "number": "80",
        "name": "XRS",
        "type": "bidirectional",
        "description": "Device reset input and watchdog reset output; open-drain output with internal pull-up, driven low for 512 OSCCLK cycles on a watchdog reset."
      },
      {
        "number": "81",
        "name": "TEST1",
        "type": "unconnected",
        "description": "Reserved by TI; must be left unconnected."
      },
      {
        "number": "82",
        "name": "TEST2",
        "type": "unconnected",
        "description": "Reserved by TI; must be left unconnected."
      },
      {
        "number": "83",
        "name": "VSS",
        "type": "power_in",
        "description": "Digital ground pin (0 V reference)."
      },
      {
        "number": "84",
        "name": "VDD3VFL",
        "type": "power_in",
        "description": "3.3 V flash core supply; must always be connected to 3.3 V (3.135 V to 3.465 V)."
      },
      {
        "number": "85",
        "name": "EMU0",
        "type": "bidirectional",
        "description": "Emulator pin 0 (I/O/Z, 8 mA drive, internal pull-up); requires an external pull-up of about 2.2 kΩ to 4.7 kΩ and is also used with EMU1 to latch boundary-scan mode."
      },
      {
        "number": "86",
        "name": "EMU1",
        "type": "bidirectional",
        "description": "Emulator pin 1 (I/O/Z, 8 mA drive, internal pull-up); requires an external pull-up of about 2.2 kΩ to 4.7 kΩ and is also used with EMU0 to latch boundary-scan mode."
      },
      {
        "number": "87",
        "name": "TCK",
        "type": "input",
        "description": "JTAG test clock with internal pull-up."
      },
      {
        "number": "88",
        "name": "GPIO48/ECAP5/XD31",
        "type": "bidirectional",
        "description": "General-purpose I/O 48 (I/O/Z); alternates are eCAP5 input/output (I/O) and XINTF data line 31 (I/O/Z)."
      },
      {
        "number": "89",
        "name": "GPIO49/ECAP6/XD30",
        "type": "bidirectional",
        "description": "General-purpose I/O 49 (I/O/Z); alternates are eCAP6 input/output (I/O) and XINTF data line 30 (I/O/Z)."
      },
      {
        "number": "90",
        "name": "GPIO50/EQEP1A/XD29",
        "type": "bidirectional",
        "description": "General-purpose I/O 50 (I/O/Z); alternates are eQEP1 input A (input) and XINTF data line 29 (I/O/Z)."
      },
      {
        "number": "91",
        "name": "GPIO51/EQEP1B/XD28",
        "type": "bidirectional",
        "description": "General-purpose I/O 51 (I/O/Z); alternates are eQEP1 input B (input) and XINTF data line 28 (I/O/Z)."
      },
      {
        "number": "92",
        "name": "VSS",
        "type": "power_in",
        "description": "Digital ground pin (0 V reference)."
      },
      {
        "number": "93",
        "name": "VDDIO",
        "type": "power_in",
        "description": "Digital I/O supply; 3.135 V to 3.465 V (3.3 V nominal)."
      },
      {
        "number": "94",
        "name": "GPIO52/EQEP1S/XD27",
        "type": "bidirectional",
        "description": "General-purpose I/O 52 (I/O/Z); alternates are eQEP1 strobe (I/O) and XINTF data line 27 (I/O/Z)."
      },
      {
        "number": "95",
        "name": "GPIO53/EQEP1I/XD26",
        "type": "bidirectional",
        "description": "General-purpose I/O 53 (I/O/Z); alternates are eQEP1 index (I/O) and XINTF data line 26 (I/O/Z)."
      },
      {
        "number": "96",
        "name": "GPIO54/SPISIMOA/XD25",
        "type": "bidirectional",
        "description": "General-purpose I/O 54 (I/O/Z); alternates are SPI-A slave-in/master-out (I/O) and XINTF data line 25 (I/O/Z)."
      },
      {
        "number": "97",
        "name": "GPIO55/SPISOMIA/XD24",
        "type": "bidirectional",
        "description": "General-purpose I/O 55 (I/O/Z); alternates are SPI-A slave-out/master-in (I/O) and XINTF data line 24 (I/O/Z)."
      },
      {
        "number": "98",
        "name": "GPIO56/SPICLKA/XD23",
        "type": "bidirectional",
        "description": "General-purpose I/O 56 (I/O/Z); alternates are SPI-A clock (I/O) and XINTF data line 23 (I/O/Z)."
      },
      {
        "number": "99",
        "name": "GPIO57",
        "type": "bidirectional",
        "description": "General-purpose I/O 57 (I/O/Z); alternates are SPI-A slave transmit enable (I/O) and XINTF data line 22 (I/O/Z)."
      },
      {
        "number": "100",
        "name": "GPIO58/MCLKRA/XD21",
        "type": "bidirectional",
        "description": "General-purpose I/O 58 (I/O/Z); alternates are McBSP-A receive clock (I/O) and XINTF data line 21 (I/O/Z)."
      },
      {
        "number": "101",
        "name": "VDD",
        "type": "power_in",
        "description": "CPU and logic digital core supply; 1.71 V to 1.89 V (1.8 V nominal) for the 100 MHz device."
      },
      {
        "number": "102",
        "name": "X2",
        "type": "output",
        "description": "Internal oscillator output; a crystal or ceramic resonator connects between X1 and X2, and X2 is left unconnected if unused."
      },
      {
        "number": "103",
        "name": "VSS",
        "type": "power_in",
        "description": "Digital ground pin (0 V reference)."
      },
      {
        "number": "104",
        "name": "X1",
        "type": "input",
        "description": "Internal/external oscillator input; accepts a crystal/resonator or a 1.8 V external oscillator (X1 must be tied to GND when a 3.3 V oscillator drives XCLKIN)."
      },
      {
        "number": "105",
        "name": "XCLKIN",
        "type": "input",
        "description": "External 3.3 V oscillator clock input (4 MHz to 100 MHz for this device); must be tied to GND when a crystal or 1.8 V oscillator on X1 is used."
      },
      {
        "number": "106",
        "name": "VSS",
        "type": "power_in",
        "description": "Digital ground pin (0 V reference)."
      },
      {
        "number": "107",
        "name": "VDDIO",
        "type": "power_in",
        "description": "Digital I/O supply; 3.135 V to 3.465 V (3.3 V nominal)."
      },
      {
        "number": "108",
        "name": "VSS",
        "type": "power_in",
        "description": "Digital ground pin (0 V reference)."
      },
      {
        "number": "109",
        "name": "VDD",
        "type": "power_in",
        "description": "CPU and logic digital core supply; 1.71 V to 1.89 V (1.8 V nominal) for the 100 MHz device."
      },
      {
        "number": "110",
        "name": "GPIO59/MFSRA/XD20",
        "type": "bidirectional",
        "description": "General-purpose I/O 59 (I/O/Z); alternates are McBSP-A receive frame sync (I/O) and XINTF data line 20 (I/O/Z)."
      },
      {
        "number": "111",
        "name": "GPIO60/MCLKRB/XD19",
        "type": "bidirectional",
        "description": "General-purpose I/O 60 (I/O/Z); alternates are McBSP-B receive clock (I/O) and XINTF data line 19 (I/O/Z)."
      },
      {
        "number": "112",
        "name": "GPIO61/MFSRB/XD18",
        "type": "bidirectional",
        "description": "General-purpose I/O 61 (I/O/Z); alternates are McBSP-B receive frame sync (I/O) and XINTF data line 18 (I/O/Z)."
      },
      {
        "number": "113",
        "name": "GPIO62/SCIRXDC/XD17",
        "type": "bidirectional",
        "description": "General-purpose I/O 62 (I/O/Z); alternates are SCI-C receive data (input) and XINTF data line 17 (I/O/Z)."
      },
      {
        "number": "114",
        "name": "GPIO63/SCITXDC/XD16",
        "type": "bidirectional",
        "description": "General-purpose I/O 63 (I/O/Z); alternates are SCI-C transmit data (output) and XINTF data line 16 (I/O/Z)."
      },
      {
        "number": "115",
        "name": "GPIO64/XD15",
        "type": "bidirectional",
        "description": "General-purpose I/O 64 (I/O/Z); alternate is XINTF data line 15 (I/O/Z)."
      },
      {
        "number": "116",
        "name": "GPIO65/XD14",
        "type": "bidirectional",
        "description": "General-purpose I/O 65 (I/O/Z); alternate is XINTF data line 14 (I/O/Z)."
      },
      {
        "number": "117",
        "name": "VDD",
        "type": "power_in",
        "description": "CPU and logic digital core supply; 1.71 V to 1.89 V (1.8 V nominal) for the 100 MHz device."
      },
      {
        "number": "118",
        "name": "VSS",
        "type": "power_in",
        "description": "Digital ground pin (0 V reference)."
      },
      {
        "number": "119",
        "name": "GPIO66/XD13",
        "type": "bidirectional",
        "description": "General-purpose I/O 66 (I/O/Z); alternate is XINTF data line 13 (I/O/Z)."
      },
      {
        "number": "120",
        "name": "VSS",
        "type": "power_in",
        "description": "Digital ground pin (0 V reference)."
      },
      {
        "number": "121",
        "name": "VDDIO",
        "type": "power_in",
        "description": "Digital I/O supply; 3.135 V to 3.465 V (3.3 V nominal)."
      },
      {
        "number": "122",
        "name": "GPIO67/XD12",
        "type": "bidirectional",
        "description": "General-purpose I/O 67 (I/O/Z); alternate is XINTF data line 12 (I/O/Z)."
      },
      {
        "number": "123",
        "name": "GPIO68/XD11",
        "type": "bidirectional",
        "description": "General-purpose I/O 68 (I/O/Z); alternate is XINTF data line 11 (I/O/Z)."
      },
      {
        "number": "124",
        "name": "GPIO69/XD10",
        "type": "bidirectional",
        "description": "General-purpose I/O 69 (I/O/Z); alternate is XINTF data line 10 (I/O/Z)."
      },
      {
        "number": "125",
        "name": "VSS",
        "type": "power_in",
        "description": "Digital ground pin (0 V reference)."
      },
      {
        "number": "126",
        "name": "VDD",
        "type": "power_in",
        "description": "CPU and logic digital core supply; 1.71 V to 1.89 V (1.8 V nominal) for the 100 MHz device."
      },
      {
        "number": "127",
        "name": "GPIO70/XD9",
        "type": "bidirectional",
        "description": "General-purpose I/O 70 (I/O/Z); alternate is XINTF data line 9 (I/O/Z)."
      },
      {
        "number": "128",
        "name": "GPIO71/XD8",
        "type": "bidirectional",
        "description": "General-purpose I/O 71 (I/O/Z); alternate is XINTF data line 8 (I/O/Z)."
      },
      {
        "number": "129",
        "name": "GPIO72/XD7",
        "type": "bidirectional",
        "description": "General-purpose I/O 72 (I/O/Z); alternate is XINTF data line 7 (I/O/Z)."
      },
      {
        "number": "130",
        "name": "GPIO73/XD6",
        "type": "bidirectional",
        "description": "General-purpose I/O 73 (I/O/Z); alternate is XINTF data line 6 (I/O/Z)."
      },
      {
        "number": "131",
        "name": "GPIO74/XD5",
        "type": "bidirectional",
        "description": "General-purpose I/O 74 (I/O/Z); alternate is XINTF data line 5 (I/O/Z)."
      },
      {
        "number": "132",
        "name": "GPIO75/XD4",
        "type": "bidirectional",
        "description": "General-purpose I/O 75 (I/O/Z); alternate is XINTF data line 4 (I/O/Z)."
      },
      {
        "number": "133",
        "name": "GPIO76/XD3",
        "type": "bidirectional",
        "description": "General-purpose I/O 76 (I/O/Z); alternate is XINTF data line 3 (I/O/Z)."
      },
      {
        "number": "134",
        "name": "GPIO77/XD2",
        "type": "bidirectional",
        "description": "General-purpose I/O 77 (I/O/Z); alternate is XINTF data line 2 (I/O/Z)."
      },
      {
        "number": "135",
        "name": "GPIO78/XD1",
        "type": "bidirectional",
        "description": "General-purpose I/O 78 (I/O/Z); alternate is XINTF data line 1 (I/O/Z)."
      },
      {
        "number": "136",
        "name": "GPIO79/XD0",
        "type": "bidirectional",
        "description": "General-purpose I/O 79 (I/O/Z); alternate is XINTF data line 0 (I/O/Z)."
      },
      {
        "number": "137",
        "name": "GPIO38/XWE0",
        "type": "bidirectional",
        "description": "General-purpose I/O 38 (I/O/Z); alternate is XINTF write enable 0 (output)."
      },
      {
        "number": "138",
        "name": "XCLKOUT",
        "type": "tri_state",
        "description": "Output clock derived from SYSCLKOUT (equal to, half, or quarter of SYSCLKOUT; reset value SYSCLKOUT/4); it is not placed in high impedance at reset, and can be disabled via XINTCNF2[CLKOFF]."
      },
      {
        "number": "139",
        "name": "VDD",
        "type": "power_in",
        "description": "CPU and logic digital core supply; 1.71 V to 1.89 V (1.8 V nominal) for the 100 MHz device."
      },
      {
        "number": "140",
        "name": "VSS",
        "type": "power_in",
        "description": "Digital ground pin (0 V reference)."
      },
      {
        "number": "141",
        "name": "GPIO28/SCIRXDA/XZCS6",
        "type": "bidirectional",
        "description": "General-purpose I/O 28 (I/O/Z); alternates are SCI-A receive data (input) and XINTF zone 6 chip select (output)."
      },
      {
        "number": "142",
        "name": "GPIO34/ECAP1/XREADY",
        "type": "bidirectional",
        "description": "General-purpose I/O 34 (I/O/Z); alternates are eCAP1 input/output (I/O) and XINTF external ready signal (input), which is connected directly to XINTF."
      },
      {
        "number": "143",
        "name": "VDDIO",
        "type": "power_in",
        "description": "Digital I/O supply; 3.135 V to 3.465 V (3.3 V nominal)."
      },
      {
        "number": "144",
        "name": "VSS",
        "type": "power_in",
        "description": "Digital ground pin (0 V reference)."
      },
      {
        "number": "145",
        "name": "GPIO36/SCIRXDA/XZCS0",
        "type": "bidirectional",
        "description": "General-purpose I/O 36 (I/O/Z); alternates are SCI-A receive data (input) and XINTF zone 0 chip select (output)."
      },
      {
        "number": "146",
        "name": "VDD",
        "type": "power_in",
        "description": "CPU and logic digital core supply; 1.71 V to 1.89 V (1.8 V nominal) for the 100 MHz device."
      },
      {
        "number": "147",
        "name": "VSS",
        "type": "power_in",
        "description": "Digital ground pin (0 V reference)."
      },
      {
        "number": "148",
        "name": "GPIO35/SCITXDA/XR/W",
        "type": "bidirectional",
        "description": "General-purpose I/O 35 (I/O/Z); alternates are SCI-A transmit data (output) and XINTF read, not write, strobe (XR/W, output)."
      },
      {
        "number": "149",
        "name": "XRD",
        "type": "output",
        "description": "External interface read enable output."
      },
      {
        "number": "150",
        "name": "GPIO37/ECAP2/XZCS7",
        "type": "bidirectional",
        "description": "General-purpose I/O 37 (I/O/Z); alternates are eCAP2 input/output (I/O) and XINTF zone 7 chip select (output)."
      },
      {
        "number": "151",
        "name": "GPIO40/XA0/XWE1",
        "type": "bidirectional",
        "description": "General-purpose I/O 40 (I/O/Z); alternates are XINTF address line 0 / XINTF write enable 1 (output)."
      },
      {
        "number": "152",
        "name": "GPIO41/XA1",
        "type": "bidirectional",
        "description": "General-purpose I/O 41 (I/O/Z); alternate is XINTF address line 1 (output)."
      },
      {
        "number": "153",
        "name": "GPIO42/XA2",
        "type": "bidirectional",
        "description": "General-purpose I/O 42 (I/O/Z); alternate is XINTF address line 2 (output)."
      },
      {
        "number": "154",
        "name": "VDD",
        "type": "power_in",
        "description": "CPU and logic digital core supply; 1.71 V to 1.89 V (1.8 V nominal) for the 100 MHz device."
      },
      {
        "number": "155",
        "name": "VSS",
        "type": "power_in",
        "description": "Digital ground pin (0 V reference)."
      },
      {
        "number": "156",
        "name": "GPIO43/XA3",
        "type": "bidirectional",
        "description": "General-purpose I/O 43 (I/O/Z); alternate is XINTF address line 3 (output)."
      },
      {
        "number": "157",
        "name": "GPIO44/XA4",
        "type": "bidirectional",
        "description": "General-purpose I/O 44 (I/O/Z); alternate is XINTF address line 4 (output)."
      },
      {
        "number": "158",
        "name": "GPIO45/XA5",
        "type": "bidirectional",
        "description": "General-purpose I/O 45 (I/O/Z); alternate is XINTF address line 5 (output)."
      },
      {
        "number": "159",
        "name": "VDDIO",
        "type": "power_in",
        "description": "Digital I/O supply; 3.135 V to 3.465 V (3.3 V nominal)."
      },
      {
        "number": "160",
        "name": "VSS",
        "type": "power_in",
        "description": "Digital ground pin (0 V reference)."
      },
      {
        "number": "161",
        "name": "GPIO46/XA6",
        "type": "bidirectional",
        "description": "General-purpose I/O 46 (I/O/Z); alternate is XINTF address line 6 (output)."
      },
      {
        "number": "162",
        "name": "GPIO47/XA7",
        "type": "bidirectional",
        "description": "General-purpose I/O 47 (I/O/Z); alternate is XINTF address line 7 (output)."
      },
      {
        "number": "163",
        "name": "GPIO80/XA8",
        "type": "bidirectional",
        "description": "General-purpose I/O 80 (I/O/Z); alternate is XINTF address line 8 (output)."
      },
      {
        "number": "164",
        "name": "GPIO81/XA9",
        "type": "bidirectional",
        "description": "General-purpose I/O 81 (I/O/Z); alternate is XINTF address line 9 (output)."
      },
      {
        "number": "165",
        "name": "GPIO82/XA10",
        "type": "bidirectional",
        "description": "General-purpose I/O 82 (I/O/Z); alternate is XINTF address line 10 (output)."
      },
      {
        "number": "166",
        "name": "VSS",
        "type": "power_in",
        "description": "Digital ground pin (0 V reference)."
      },
      {
        "number": "167",
        "name": "VDD",
        "type": "power_in",
        "description": "CPU and logic digital core supply; 1.71 V to 1.89 V (1.8 V nominal) for the 100 MHz device."
      },
      {
        "number": "168",
        "name": "GPIO83/XA11",
        "type": "bidirectional",
        "description": "General-purpose I/O 83 (I/O/Z); alternate is XINTF address line 11 (output)."
      },
      {
        "number": "169",
        "name": "GPIO84/XA12",
        "type": "bidirectional",
        "description": "General-purpose I/O 84 (I/O/Z); alternate is XINTF address line 12 (output)."
      },
      {
        "number": "170",
        "name": "VDDIO",
        "type": "power_in",
        "description": "Digital I/O supply; 3.135 V to 3.465 V (3.3 V nominal)."
      },
      {
        "number": "171",
        "name": "VSS",
        "type": "power_in",
        "description": "Digital ground pin (0 V reference)."
      },
      {
        "number": "172",
        "name": "GPIO85/XA13",
        "type": "bidirectional",
        "description": "General-purpose I/O 85 (I/O/Z); alternate is XINTF address line 13 (output)."
      },
      {
        "number": "173",
        "name": "GPIO86/XA14",
        "type": "bidirectional",
        "description": "General-purpose I/O 86 (I/O/Z); alternate is XINTF address line 14 (output)."
      },
      {
        "number": "174",
        "name": "GPIO87/XA15",
        "type": "bidirectional",
        "description": "General-purpose I/O 87 (I/O/Z); alternate is XINTF address line 15 (output)."
      },
      {
        "number": "175",
        "name": "GPIO39/XA16",
        "type": "bidirectional",
        "description": "General-purpose I/O 39 (I/O/Z); alternate is XINTF address line 16 (output)."
      },
      {
        "number": "176",
        "name": "GPIO31/CANTXA/XA17",
        "type": "bidirectional",
        "description": "General-purpose I/O 31 (I/O/Z); alternates are eCAN-A transmit (output) and XINTF address line 17 (output)."
      }
    ],
    "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 datasheet is a family datasheet covering F28335/F28334/F28333/F28332 and F28235/F28234/F28232. T; The ordering addendum (page 189–194) lists TMS320F28333PGFA as an active LQFP (PGF) 176-pin part, so; TEST1 (pin 81) and TEST2 (pin 82) are reserved by TI and are typed unconnected because the datasheet"
        ],
        "pages_sent": 113,
        "cost_usd": 0.9179,
        "at": "2026-10-08T23:29:36"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/tms320f28235",
        "pages": 218,
        "sha256": "5a21b6765ede7b5a",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 176,
        "described": 176,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "tms320f28333pgfa.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          26.0,
          26.0,
          1.5
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "af405b3ced8ef09a67c3c4732e526f53f88a9b9f83ce7d10b8fa299331f6842a",
        "checked": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "tms320f28333pgfa-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          26.0,
          26.0,
          1.5
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "9b1ef3df5b4023792853dc1d3276876f8504f40ec36cb7084421ddf8306101f5",
        "checked": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}