TMS320F28021PTS

{
  "schema_version": 1,
  "type": "component",
  "slug": "tms320f28021pts",
  "title": "TMS320F28021PTS",
  "brief": "Texas Instruments Microcontrollers (MCU/MPU/SOC), LQFP-48(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",
    "embedded processors & controllers",
    "tms320f28021pts",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "TMS320F28021PTS",
    "manufacturer": "Texas Instruments",
    "package": "LQFP-48(7x7)",
    "pin_count": 48,
    "category": "Embedded Processors & Controllers",
    "subcategory": "Microcontrollers (MCU/MPU/SOC)",
    "datasheet": "https://www.ti.com/cn/lit/gpn/tms320f28020",
    "parts": {
      "symbol": "tms320f28021pts.kicad_sym",
      "footprint": "tms320f28021pts.kicad_mod",
      "model_3d": "tms320f28021pts-hero.glb",
      "model_3d_plain": "tms320f28021pts.glb",
      "model_3d_step": "tms320f28021pts-etched.step",
      "model_3d_step_plain": "tms320f28021pts.step",
      "lbr": "tms320f28021pts.lbr"
    },
    "distributor_links": {
      "lcsc": "C504356",
      "digikey": "TMS320F28021PTS-ND",
      "mouser": "595-TMS320F28021PTS"
    },
    "distributor_check": {
      "checked_at": "2026-10-11T23:13:00Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "TMS320F28021PTS-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "595-TMS320F28021PTS",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "GPIO29/SCITXDA/SCLA/TZ3",
        "type": "bidirectional",
        "description": "General-purpose I/O (I/O/Z, not 5 V tolerant) with selectable internal pullup; alternates are SCI-A transmit, I2C-A clock (open-drain) and trip-zone input TZ3."
      },
      {
        "number": "2",
        "name": "TRST",
        "type": "input",
        "description": "JTAG test reset with internal pulldown; must be held low during normal operation, and an external pullup (about 2.2 kΩ typical) is required on this pin."
      },
      {
        "number": "3",
        "name": "XRS",
        "type": "bidirectional",
        "description": "Open-drain device reset input and watchdog reset output with internal pullup; a 2.2 kΩ to 10 kΩ resistor to VDDIO is recommended and any noise-filter capacitor to VSS should be 100 nF or less."
      },
      {
        "number": "4",
        "name": "ADCINA6/AIO6",
        "type": "bidirectional",
        "description": "ADC group A channel 6 analog input, also usable as digital AIO6 I/O (AIO pins have no internal pullup)."
      },
      {
        "number": "5",
        "name": "ADCINA4/COMP2A/AIO4",
        "type": "bidirectional",
        "description": "ADC group A channel 4 analog input, also comparator 2A input (48-pin device only) and digital AIO4 I/O."
      },
      {
        "number": "6",
        "name": "ADCINA7",
        "type": "input",
        "description": "ADC group A channel 7 analog input."
      },
      {
        "number": "7",
        "name": "ADCINA3",
        "type": "input",
        "description": "ADC group A channel 3 analog input."
      },
      {
        "number": "8",
        "name": "ADCINA1",
        "type": "input",
        "description": "ADC group A channel 1 analog input."
      },
      {
        "number": "9",
        "name": "ADCINA2/COMP1A/AIO2",
        "type": "bidirectional",
        "description": "ADC group A channel 2 analog input, also comparator 1A input and digital AIO2 I/O."
      },
      {
        "number": "10",
        "name": "ADCINA0/VREFHI",
        "type": "input",
        "description": "ADC group A channel 0 analog input; used as external ADC reference high only in external reference mode, and VREFHI must not exceed VDDA."
      },
      {
        "number": "11",
        "name": "VDDA",
        "type": "power_in",
        "description": "Analog supply, 2.97 V to 3.63 V (3.3 V nominal); place a 2.2 µF capacitor (typical) near this pin."
      },
      {
        "number": "12",
        "name": "VSSA/VREFLO",
        "type": "power_in",
        "description": "Analog ground; also the ADC external reference low (VREFLO), which is always grounded."
      },
      {
        "number": "13",
        "name": "ADCINB1",
        "type": "input",
        "description": "ADC group B channel 1 analog input."
      },
      {
        "number": "14",
        "name": "ADCINB2/COMP1B/AIO10",
        "type": "bidirectional",
        "description": "ADC group B channel 2 analog input, also comparator 1B input and digital AIO10 I/O."
      },
      {
        "number": "15",
        "name": "ADCINB3",
        "type": "input",
        "description": "ADC group B channel 3 analog input."
      },
      {
        "number": "16",
        "name": "ADCINB4/COMP2B/AIO12",
        "type": "bidirectional",
        "description": "ADC group B channel 4 analog input, also comparator 2B input (48-pin device only) and digital AIO12 I/O."
      },
      {
        "number": "17",
        "name": "ADCINB6/AIO14",
        "type": "bidirectional",
        "description": "ADC group B channel 6 analog input, also usable as digital AIO14 I/O."
      },
      {
        "number": "18",
        "name": "ADCINB7",
        "type": "input",
        "description": "ADC group B channel 7 analog input."
      },
      {
        "number": "19",
        "name": "GPIO34/COMP2OUT",
        "type": "bidirectional",
        "description": "General-purpose I/O (I/O/Z, not 5 V tolerant); alternate is the direct output of comparator 2 (48-pin device only); may glitch at power-up when the internal VREG is used."
      },
      {
        "number": "20",
        "name": "GPIO35/TDI",
        "type": "bidirectional",
        "description": "General-purpose I/O (I/O/Z, not 5 V tolerant); JTAG test data input TDI with internal pullup, sampled on the rising edge of TCK, and may glitch at power-up when the internal VREG is used."
      },
      {
        "number": "21",
        "name": "GPIO36/TMS",
        "type": "bidirectional",
        "description": "General-purpose I/O (I/O/Z, not 5 V tolerant); JTAG test mode select TMS with internal pullup, sampled on the rising edge of TCK, and may glitch at power-up when the internal VREG is used."
      },
      {
        "number": "22",
        "name": "GPIO37/TDO",
        "type": "tri_state",
        "description": "General-purpose I/O (I/O/Z); JTAG test data output TDO with 8 mA drive, shifted out on the falling edge of TCK, and may glitch at power-up when the internal VREG is used."
      },
      {
        "number": "23",
        "name": "GPIO38/XCLKIN/TCK",
        "type": "bidirectional",
        "description": "General-purpose I/O (I/O/Z); JTAG test clock TCK with internal pullup, and alternate external oscillator input XCLKIN (the XCLKIN path must be disabled for crystal operation or during JTAG debug)."
      },
      {
        "number": "24",
        "name": "GPIO18/SPICLKA/SCITXDA/XCLKOUT",
        "type": "bidirectional",
        "description": "General-purpose I/O (I/O/Z, group 2 pin); alternates are SPI-A clock, SCI-A transmit and XCLKOUT derived from SYSCLKOUT (reset default SYSCLKOUT/4)."
      },
      {
        "number": "25",
        "name": "GPIO19/XCLKIN/SPISTEA/SCIRXDA/ECAP1",
        "type": "bidirectional",
        "description": "General-purpose I/O (I/O/Z, group 2 pin); alternates are external oscillator input XCLKIN, SPI-A slave transmit enable, SCI-A receive and eCAP1 I/O, and may glitch at power-up when the internal VREG is used."
      },
      {
        "number": "26",
        "name": "GPIO17/SPISOMIA/TZ3",
        "type": "bidirectional",
        "description": "General-purpose I/O (I/O/Z, group 2 pin); alternates are SPI-A slave output/master input and trip-zone input TZ3, and may glitch at power-up when the internal VREG is used."
      },
      {
        "number": "27",
        "name": "GPIO16/SPISIMOA/TZ2",
        "type": "bidirectional",
        "description": "General-purpose I/O (I/O/Z, group 2 pin); alternates are SPI-A slave input/master output and trip-zone input TZ2."
      },
      {
        "number": "28",
        "name": "GPIO1/EPWM1B/COMP1OUT",
        "type": "bidirectional",
        "description": "General-purpose I/O (I/O/Z); alternates are ePWM1 output B (no internal pullup at reset for PWM pins) and direct output of comparator 1."
      },
      {
        "number": "29",
        "name": "GPIO0/EPWM1A",
        "type": "bidirectional",
        "description": "General-purpose I/O (I/O/Z); alternate is ePWM1 output A with HRPWM channel (no internal pullup at reset for PWM pins)."
      },
      {
        "number": "30",
        "name": "TEST",
        "type": "bidirectional",
        "description": "Reserved for TI; must remain unconnected."
      },
      {
        "number": "31",
        "name": "GPIO32/SDAA/EPWMSYNCI/ADCSOCAO",
        "type": "bidirectional",
        "description": "General-purpose I/O (I/O/Z); alternates are I2C-A data (open-drain), ePWM external sync input and ADC start-of-conversion A output."
      },
      {
        "number": "32",
        "name": "VDD",
        "type": "power_in",
        "description": "CPU and logic digital supply; when the internal VREG is used, place a 1.2 µF (minimum) capacitor between each VDD pin and ground, and when VREG is disabled it is supplied externally at 1.71 V to 1.995 V (1.8 V nominal)."
      },
      {
        "number": "33",
        "name": "VSS",
        "type": "power_in",
        "description": "Digital ground."
      },
      {
        "number": "34",
        "name": "VREGENZ",
        "type": "input",
        "description": "Internal regulator enable with internal pulldown; tie low (VSS) to enable the internal 1.8 V VREG, or tie high (VDDIO) to disable it and use an external 1.8 V VDD supply."
      },
      {
        "number": "35",
        "name": "VDDIO",
        "type": "power_in",
        "description": "Digital I/O buffer and flash supply, 2.97 V to 3.63 V (3.3 V nominal); a decoupling capacitor should be placed on this pin."
      },
      {
        "number": "36",
        "name": "GPIO33/SCLA/EPWMSYNCO/ADCSOCBO",
        "type": "bidirectional",
        "description": "General-purpose I/O (I/O/Z); alternates are I2C-A clock (open-drain), ePWM external sync output and ADC start-of-conversion B output."
      },
      {
        "number": "37",
        "name": "GPIO2/EPWM2A",
        "type": "bidirectional",
        "description": "General-purpose I/O (I/O/Z); alternate is ePWM2 output A with HRPWM channel (no internal pullup at reset for PWM pins)."
      },
      {
        "number": "38",
        "name": "GPIO3/EPWM2B/COMP2OUT",
        "type": "bidirectional",
        "description": "General-purpose I/O (I/O/Z); alternates are ePWM2 output B and direct output of comparator 2 (48-pin device only)."
      },
      {
        "number": "39",
        "name": "GPIO4/EPWM3A",
        "type": "bidirectional",
        "description": "General-purpose I/O (I/O/Z); alternate is ePWM3 output A with HRPWM channel (no internal pullup at reset for PWM pins)."
      },
      {
        "number": "40",
        "name": "GPIO5/EPWM3B/ECAP1",
        "type": "bidirectional",
        "description": "General-purpose I/O (I/O/Z); alternates are ePWM3 output B and enhanced capture input/output 1."
      },
      {
        "number": "41",
        "name": "GPIO6/EPWM4A/EPWMSYNCI/EPWMSYNCO",
        "type": "bidirectional",
        "description": "General-purpose I/O (I/O/Z); alternates are ePWM4 output A with HRPWM channel, ePWM external sync input and ePWM external sync output."
      },
      {
        "number": "42",
        "name": "GPIO7/EPWM4B/SCIRXDA",
        "type": "bidirectional",
        "description": "General-purpose I/O (I/O/Z); alternates are ePWM4 output B and SCI-A receive data."
      },
      {
        "number": "43",
        "name": "VDD",
        "type": "power_in",
        "description": "CPU and logic digital supply; when the internal VREG is used, place a 1.2 µF (minimum) capacitor between each VDD pin and ground."
      },
      {
        "number": "44",
        "name": "VSS",
        "type": "power_in",
        "description": "Digital ground."
      },
      {
        "number": "45",
        "name": "X1",
        "type": "input",
        "description": "1.8 V on-chip crystal oscillator input; a crystal or ceramic resonator must be connected between X1 and X2, and the pin must be tied to GND if the oscillator is unused."
      },
      {
        "number": "46",
        "name": "X2",
        "type": "output",
        "description": "On-chip crystal oscillator output; connect a crystal or ceramic resonator between X1 and X2, and leave unconnected if X2 is unused."
      },
      {
        "number": "47",
        "name": "GPIO12/TZ1/SCITXDA",
        "type": "bidirectional",
        "description": "General-purpose I/O (I/O/Z); alternates are trip-zone input TZ1 and SCI-A transmit data."
      },
      {
        "number": "48",
        "name": "GPIO28/SCIRXDA/SDAA/TZ2",
        "type": "bidirectional",
        "description": "General-purpose I/O (I/O/Z, group 2 pin); alternates are SCI receive data, I2C-A data (open-drain) and trip-zone input TZ2."
      }
    ],
    "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 signal description table (section 7.2.1) lists TRST = pin 2 and XRS = pin 3 for the PT package, ; The signal description table lists VREGENZ = 34, VDDIO = 35 and GPIO33 = 36, but the Figure 7-1 text; Pins 6, 7, 8, 10, 13, 15 and 18 are dedicated ADC analog inputs in the datasheet and are typed as in"
        ],
        "pages_sent": 85,
        "cost_usd": 0.6034,
        "at": "2026-10-11T23:12:36"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/tms320f28020",
        "pages": 147,
        "sha256": "b90c388f4142c4b5",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 48,
        "described": 48,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "tms320f28021pts.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          9,
          9,
          1.5
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "9dea352d93177c2904afd7d7b68ea8855ce1ab691f69f8b3e13655600514b6bf",
        "checked": "2026-10-11",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "tms320f28021pts-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          9,
          9,
          1.5
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "1a408c192d7c18dea15fee8cbf4cd0f11dcb0250f9dcc9a2bd41feb852538e15",
        "checked": "2026-10-11",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "LQFP-48(7x7)",
      "Category": "Embedded Processors & Controllers",
      "Pins": "48"
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "tms320f28021pts"
  ],
  "discovery_pitch": "TMS320F28021PTS (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"
  },
  "files": [
    "page.json",
    "README.md",
    "tms320f28021pts.kicad_sym",
    "tms320f28021pts.kicad_mod",
    "tms320f28021pts.glb",
    "tms320f28021pts.step",
    "tms320f28021pts.lbr",
    "docs/hero.png",
    "docs/tms320f28021pts-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "tms320f28021pts-hero.glb",
    "tms320f28021pts-hero.overlay.json"
  ],
  "visibility": {
    "public": true
  }
}