STM32H503CBT6

{
  "slug": "stm32h503cbt6",
  "version": "0.1.0",
  "type": "component",
  "description": "STMICROELECTRONICS Global Sourcing Parts, LQFP-48(7x7). Pinout checked against ST's open pin data, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "global sourcing parts",
    "stm32h503cbt6",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "stm32h503cbt6.kicad_sym",
    "stm32h503cbt6.kicad_mod",
    "stm32h503cbt6.glb",
    "stm32h503cbt6.step",
    "stm32h503cbt6.lbr",
    "docs/hero.png",
    "docs/stm32h503cbt6-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "stm32h503cbt6-hero.glb",
    "stm32h503cbt6-hero.overlay.json",
    "stm32h503cbt6-etched.glb"
  ],
  "component": {
    "mpn": "STM32H503CBT6",
    "manufacturer": "STMICROELECTRONICS",
    "package": "LQFP-48(7x7)",
    "pin_count": 48,
    "category": "Global Sourcing Parts",
    "subcategory": "Global Sourcing Parts",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590904797077979136",
    "parts": {
      "symbol": "stm32h503cbt6.kicad_sym",
      "footprint": "stm32h503cbt6.kicad_mod",
      "model_3d": "stm32h503cbt6-hero.glb",
      "model_3d_plain": "stm32h503cbt6-etched.glb",
      "model_3d_step": "stm32h503cbt6-etched.step",
      "model_3d_step_plain": "stm32h503cbt6.step",
      "lbr": "stm32h503cbt6.lbr"
    },
    "distributor_links": {
      "lcsc": "C17700273",
      "digikey": "497-STM32H503CBT6-ND"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T09:39:22Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "497-STM32H503CBT6-ND",
        "status": "found"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VBAT",
        "type": "power_in",
        "description": "Backup-domain supply for the RTC and backup registers, with a backup operating voltage of 1.2 V to 3.6 V."
      },
      {
        "number": "2",
        "name": "PC13",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT_t) GPIO powered through the VSW power switch and functional in VBAT mode with tamper function; output speed must not exceed 2 MHz at 30 pF and it must not be used as a current source."
      },
      {
        "number": "3",
        "name": "PC14-OSC32_IN",
        "type": "bidirectional",
        "description": "5 V-tolerant GPIO powered through the VSW power switch, limited to 2 MHz output speed at 30 pF with no current sourcing; also the LSE oscillator input OSC32_IN."
      },
      {
        "number": "4",
        "name": "PC15-OSC32_OUT",
        "type": "bidirectional",
        "description": "5 V-tolerant GPIO powered through the VSW power switch, limited to 2 MHz output speed at 30 pF with no current sourcing; also the LSE oscillator output OSC32_OUT."
      },
      {
        "number": "5",
        "name": "PH0-OSC_IN",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; also the HSE oscillator input OSC_IN."
      },
      {
        "number": "6",
        "name": "PH1-OSC_OUT",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) GPIO; also the HSE oscillator output OSC_OUT."
      },
      {
        "number": "7",
        "name": "NRST",
        "type": "bidirectional",
        "description": "Bidirectional reset pin with an embedded weak pull-up resistor."
      },
      {
        "number": "8",
        "name": "VSSA",
        "type": "power_in",
        "description": "Analog ground pin, shared with the VREF- function in the LQFP48 pinout."
      },
      {
        "number": "9",
        "name": "VDDA",
        "type": "power_in",
        "description": "Analog supply, shared with the VREF+ function; minimum 1.62 V when ADC or COMP is used, 1.8 V with DAC, 2.0 V with OPAMP, up to 3.6 V."
      },
      {
        "number": "10",
        "name": "PA0",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O with analog switch supplied by VDDA and HSLV option; also ADC1_INP0 analog input and WKUP1 wakeup."
      },
      {
        "number": "11",
        "name": "PA1",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O with analog switch supplied by VDDA and HSLV option; also ADC1_INP1 analog input."
      },
      {
        "number": "12",
        "name": "PA2",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O with analog switch supplied by VDDA and HSLV option; also ADC1_INP14 analog input and WKUP2 wakeup."
      },
      {
        "number": "13",
        "name": "PA3",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O with analog switch supplied by VDDA and HSLV option; also ADC1_INP15 analog input."
      },
      {
        "number": "14",
        "name": "PA4",
        "type": "bidirectional",
        "description": "3.6 V-tolerant (TT) I/O with analog switch supplied by VDDA and HSLV option; also ADC1_INP18 and DAC1_OUT1."
      },
      {
        "number": "15",
        "name": "PA5",
        "type": "bidirectional",
        "description": "3.6 V-tolerant (TT) I/O with analog switch supplied by VDDA and HSLV option; also ADC1_INP19, DAC1_OUT2 and COMP1_INM3."
      },
      {
        "number": "16",
        "name": "PA6",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O with analog switch supplied by VDDA and HSLV option; also ADC1_INP3 analog input."
      },
      {
        "number": "17",
        "name": "PA7",
        "type": "bidirectional",
        "description": "3.6 V-tolerant (TT) I/O with analog switch supplied by VDDA and HSLV option; also ADC1_INP7 and OPAMP1_VOUT."
      },
      {
        "number": "18",
        "name": "PB0",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O with analog switch supplied by VDDA and HSLV option; also ADC1_INP9, OPAMP1_VINP and COMP1_INP2."
      },
      {
        "number": "19",
        "name": "PB1",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O with analog switch supplied by VDDA and HSLV option; also ADC1_INP5, OPAMP1_VINM and COMP1_INM2."
      },
      {
        "number": "20",
        "name": "PB2",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O with analog switch supplied by VDDA and HSLV option; also COMP1_INP3 and LSCO."
      },
      {
        "number": "21",
        "name": "PB10",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O, Fm+ capable, with HSLV option."
      },
      {
        "number": "22",
        "name": "VCAP",
        "type": "power_in",
        "description": "Connection for the external capacitor stabilizing the embedded LDO; when two VCAP pins are present, each must be connected to a 2.2 µF (typical) capacitor."
      },
      {
        "number": "23",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground reference; all voltages are referenced to VSS."
      },
      {
        "number": "24",
        "name": "VDD",
        "type": "power_in",
        "description": "Digital supply, 1.71 V to 3.6 V with HSLV=0 or 1.71 V to 2.7 V with HSLV=1."
      },
      {
        "number": "25",
        "name": "PB12",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O with HSLV option; also TIM1_BKIN and FDCAN1_RX alternate functions."
      },
      {
        "number": "26",
        "name": "PB13",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O, Fm+ capable, with HSLV option; also LPUART1_CTS, FDCAN1_TX and I3C2_SDA."
      },
      {
        "number": "27",
        "name": "PB14",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O with HSLV option; also USART1_TX and LPUART1_RTS."
      },
      {
        "number": "28",
        "name": "PB15",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O with analog switch supplied by VDDA and HSLV option; also PVD_IN and COMP1_OUT."
      },
      {
        "number": "29",
        "name": "PA8",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O with HSLV option; also MCO1 and USB_SOF; supplied by VDD on this package because no VDDIO2 pin is provided."
      },
      {
        "number": "30",
        "name": "PA9",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O with HSLV option; also TRACED2 and USART1_TX; supplied by VDD on this package because no VDDIO2 pin is provided."
      },
      {
        "number": "31",
        "name": "PA10",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O with HSLV option; also USART1_RX and LPUART1_RX."
      },
      {
        "number": "32",
        "name": "PA11",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O with HSLV option; also USB_DM and FDCAN1_RX."
      },
      {
        "number": "33",
        "name": "PA12",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O with HSLV option; also USB_DP and FDCAN1_TX."
      },
      {
        "number": "34",
        "name": "PA13",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O with HSLV option; after reset it is JTMS/SWDIO with the internal pull-up activated."
      },
      {
        "number": "35",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground reference; all voltages are referenced to VSS."
      },
      {
        "number": "36",
        "name": "VDD",
        "type": "power_in",
        "description": "Digital supply, 1.71 V to 3.6 V with HSLV=0 or 1.71 V to 2.7 V with HSLV=1."
      },
      {
        "number": "37",
        "name": "PA14",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O with HSLV option; after reset it is JTCK/SWCLK with the internal pull-down activated."
      },
      {
        "number": "38",
        "name": "PA15",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O with HSLV option, supplied by VDD on this package; after reset it is JTDI with the internal pull-up activated."
      },
      {
        "number": "39",
        "name": "PB3",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O, Fm+ capable, with HSLV option; after reset it is JTDO/TRACESWO, supplied by VDD on this package."
      },
      {
        "number": "40",
        "name": "PB4",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O, Fm+ capable, with HSLV option; after reset it is NJTRST with the internal pull-up activated."
      },
      {
        "number": "41",
        "name": "PB5",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O, Fm+ capable, with HSLV option; also I3C1_SDA and LPTIM1_IN1."
      },
      {
        "number": "42",
        "name": "PB6",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O, Fm+ capable, with HSLV option; also LPUART1_TX and USART1_TX."
      },
      {
        "number": "43",
        "name": "PB7",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O, Fm+ capable, with HSLV option; also WKUP5, LPUART1_RX and USART1_RX."
      },
      {
        "number": "44",
        "name": "BOOT0",
        "type": "input",
        "description": "Dedicated boot pin; input voltage must not exceed min(min(VDD, VDDA, VDDIO2)+4.0 V, 6.0 V)."
      },
      {
        "number": "45",
        "name": "PB8",
        "type": "bidirectional",
        "description": "5 V-tolerant I/O, Fm+ capable, with HSLV option; also I3C1_SCL, I2C1_SCL and FDCAN1_RX."
      },
      {
        "number": "46",
        "name": "VCAP",
        "type": "power_in",
        "description": "Connection for the external capacitor stabilizing the embedded LDO; when two VCAP pins are present, each must be connected to a 2.2 µF (typical) capacitor."
      },
      {
        "number": "47",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground reference; all voltages are referenced to VSS."
      },
      {
        "number": "48",
        "name": "VDD",
        "type": "power_in",
        "description": "Digital supply, 1.71 V to 3.6 V with HSLV=0 or 1.71 V to 2.7 V with HSLV=1."
      }
    ],
    "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: Table 9 defines _s as I/O supplied only by VDDIO2, but LQFP48 has no VDDIO2 pin. The Figure 11 note ; The pin map was taken from the text-extracted Table 10 (pp.52-63), using the LQFP48 column (third of; Pin descriptions use the I/O structure legend in Table 9 (FT, TT, _a, _f, _h, _s, _t) and the footno"
        ],
        "pages_sent": 67,
        "cost_usd": 0.3146,
        "at": "2026-10-18T09:37:31"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590904797077979136",
        "pages": 174,
        "sha256": "87d98e42d910eabb",
        "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": "stm32h503cbt6.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          9.0,
          9.0,
          1.5
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "9dea352d93177c2904afd7d7b68ea8855ce1ab691f69f8b3e13655600514b6bf",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "stm32h503cbt6-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          9.0,
          9.0,
          1.5
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "60805de7505e3cd372a3dc5b9b8933b677c37928907da32568675991f5739a5f",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}