STM32WB55CGU6

{
  "slug": "stm32wb55cgu6",
  "version": "0.1.0",
  "type": "component",
  "description": "STMicroelectronics Microcontrollers (MCU/MPU/SOC), UFQFPN-48(7x7). Pinout checked against ST's open pin data, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "embedded processors & controllers",
    "stm32wb55cgu6",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "stm32wb55cgu6.kicad_sym",
    "stm32wb55cgu6.kicad_mod",
    "stm32wb55cgu6.glb",
    "stm32wb55cgu6.step",
    "stm32wb55cgu6.lbr",
    "docs/hero.png",
    "docs/stm32wb55cgu6-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "stm32wb55cgu6-hero.glb",
    "stm32wb55cgu6-hero.overlay.json",
    "stm32wb55cgu6-etched.glb"
  ],
  "component": {
    "mpn": "STM32WB55CGU6",
    "manufacturer": "STMicroelectronics",
    "package": "UFQFPN-48(7x7)",
    "pin_count": 49,
    "category": "Embedded Processors & Controllers",
    "subcategory": "Microcontrollers (MCU/MPU/SOC)",
    "datasheet": "https://www.st.com/resource/en/datasheet/stm32wb55cgu6.pdf",
    "parts": {
      "symbol": "stm32wb55cgu6.kicad_sym",
      "footprint": "stm32wb55cgu6.kicad_mod",
      "model_3d": "stm32wb55cgu6-hero.glb",
      "model_3d_plain": "stm32wb55cgu6-etched.glb",
      "model_3d_step": "stm32wb55cgu6-etched.step",
      "model_3d_step_plain": "stm32wb55cgu6.step",
      "lbr": "stm32wb55cgu6.lbr"
    },
    "distributor_links": {
      "lcsc": "C404023",
      "digikey": "497-18489-ND",
      "mouser": "511-STM32WB55CGU6"
    },
    "distributor_check": {
      "checked_at": "2026-11-05T23:21:37Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "497-18489-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "511-STM32WB55CGU6",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VBAT",
        "type": "power_in",
        "description": "Backup-domain supply for the RTC, LSE and backup registers, specified from 1.55 to 3.6 V (VBAT backup operating voltage)."
      },
      {
        "number": "2",
        "name": "PC14-OSC32_IN",
        "type": "bidirectional",
        "description": "Supplied through the power switch, which sinks only 3 mA, so output speed must not exceed 2 MHz with a 30 pF load and it must not drive current sources; alternate function OSC32_IN for the LSE crystal."
      },
      {
        "number": "3",
        "name": "PC15-OSC32_OUT",
        "type": "bidirectional",
        "description": "Supplied through the power switch, which sinks only 3 mA, so output speed must not exceed 2 MHz with a 30 pF load and it must not drive current sources; alternate function OSC32_OUT for the LSE crystal."
      },
      {
        "number": "4",
        "name": "PH3-BOOT0",
        "type": "bidirectional",
        "description": "5 V-tolerant FT I/O multiplexed with the BOOT0 boot-mode function and with LSCO clock output (alternate function CM4_EVENTOUT, LSCO)."
      },
      {
        "number": "5",
        "name": "PB8",
        "type": "bidirectional",
        "description": "5 V-tolerant FT_fl I/O (Fm+ capable, LCD function supplied by VLCD) with alternate functions TIM1_CH2N, SAI1_PDM_CK1, I2C1_SCL, QUADSPI_BK1_IO1, LCD_SEG16, SAI1_MCLK_A and TIM16_CH1."
      },
      {
        "number": "6",
        "name": "PB9",
        "type": "bidirectional",
        "description": "5 V-tolerant FT_fla I/O (Fm+ capable, LCD and analog switch functions) with alternate functions TIM1_CH3N, I2C1_SDA, SPI2_NSS, IR_OUT, QUADSPI_BK1_IO0 and TIM17_CH1."
      },
      {
        "number": "7",
        "name": "NRST",
        "type": "bidirectional",
        "description": "Bidirectional reset pin with weak pull-up resistor (RST structure)."
      },
      {
        "number": "8",
        "name": "VDDA",
        "type": "power_in",
        "description": "Analog supply for the ADC, comparators and voltage reference buffer, 1.62 to 3.6 V when ADC or COMP is used; on UFQFPN48 it is connected to VREF+."
      },
      {
        "number": "9",
        "name": "PA0",
        "type": "bidirectional",
        "description": "5 V-tolerant FT_a I/O with analog switch function supplied by VDDA; alternate functions include TIM2_CH1, COMP1_OUT, SAI1_EXTCLK and TIM2_ETR, and additional functions COMP1_INM, ADC1_IN5 and RTC_TAMP2/WKUP1."
      },
      {
        "number": "10",
        "name": "PA1",
        "type": "bidirectional",
        "description": "5 V-tolerant FT_la I/O with analog switch function supplied by VDDA; alternate functions include TIM2_CH2, I2C1_SMBA, SPI1_SCK and LCD_SEG0, and additional functions COMP1_INP and ADC1_IN6."
      },
      {
        "number": "11",
        "name": "PA2",
        "type": "bidirectional",
        "description": "5 V-tolerant FT_la I/O with analog switch function supplied by VDDA; alternate functions include LSCO clock output, TIM2_CH3, LPUART1_TX and QUADSPI_BK1_NCS, and additional functions COMP2_INM, ADC1_IN7 and WKUP4."
      },
      {
        "number": "12",
        "name": "PA3",
        "type": "bidirectional",
        "description": "5 V-tolerant FT_la I/O with analog switch function supplied by VDDA; alternate functions include TIM2_CH4, SAI1_PDM_CK1, LPUART1_RX and QUADSPI_CLK, and additional functions COMP2_INP and ADC1_IN8."
      },
      {
        "number": "13",
        "name": "PA4",
        "type": "bidirectional",
        "description": "5 V-tolerant FT_a I/O with analog switch function supplied by VDDA; alternate functions include SPI1_NSS, SAI1_FS_B and LPTIM2_OUT, and additional functions COMP1_INM, COMP2_INM and ADC1_IN9."
      },
      {
        "number": "14",
        "name": "PA5",
        "type": "bidirectional",
        "description": "5 V-tolerant FT_a I/O with analog switch function supplied by VDDA; alternate functions include TIM2_CH1, TIM2_ETR, SPI1_SCK and LPTIM2_ETR, and additional functions COMP1_INM, COMP2_INM and ADC1_IN10."
      },
      {
        "number": "15",
        "name": "PA6",
        "type": "bidirectional",
        "description": "5 V-tolerant FT_la I/O; alternate functions include TIM1_BKIN, SPI1_MISO, LPUART1_CTS, QUADSPI_BK1_IO3 and TIM16_CH1, and additional function ADC1_IN11."
      },
      {
        "number": "16",
        "name": "PA7",
        "type": "bidirectional",
        "description": "5 V-tolerant FT_fla I/O (Fm+ capable, analog switch function supplied by VDDA); alternate functions include TIM1_CH1N, I2C3_SCL, SPI1_MOSI, QUADSPI_BK1_IO2 and TIM17_CH1, and additional function ADC1_IN12."
      },
      {
        "number": "17",
        "name": "PA8",
        "type": "bidirectional",
        "description": "5 V-tolerant FT_la I/O; alternate functions include MCO clock output, TIM1_CH1, USART1_CK, SAI1_SCK_A and LPTIM2_OUT, and additional function ADC1_IN15."
      },
      {
        "number": "18",
        "name": "PA9",
        "type": "bidirectional",
        "description": "5 V-tolerant FT_fla I/O (Fm+ capable, analog switch function supplied by VDDA); alternate functions include TIM1_CH2, I2C1_SCL, SPI2_SCK, USART1_TX and SAI1_FS_A, and additional functions COMP1_INM and ADC1_IN16."
      },
      {
        "number": "19",
        "name": "PB2",
        "type": "bidirectional",
        "description": "5 V-tolerant FT_a I/O with analog switch function supplied by VDDA; alternate functions include RTC_OUT, LPTIM1_OUT, I2C3_SMBA, SPI1_NSS and SAI1_EXTCLK, and additional function COMP1_INP."
      },
      {
        "number": "20",
        "name": "VDD",
        "type": "power_in",
        "description": "Standard operating voltage supply of 1.71 to 3.6 V for I/Os, the internal regulator and system functions."
      },
      {
        "number": "21",
        "name": "RF1",
        "type": "bidirectional",
        "description": "RF input/output that must be connected to the antenna through a low-pass matching network, and that uses the nominal PCB layout."
      },
      {
        "number": "22",
        "name": "VSSRF",
        "type": "power_in",
        "description": "RF ground that must be connected to GND."
      },
      {
        "number": "23",
        "name": "VDDRF",
        "type": "power_in",
        "description": "Dedicated RF supply that must be connected to VDD, with minimum RF voltage of 1.71 V."
      },
      {
        "number": "24",
        "name": "OSC_OUT",
        "type": "output",
        "description": "32 MHz main oscillator output, also used as HSE source; use the nominal PCB layout according to the reference design (AN5165)."
      },
      {
        "number": "25",
        "name": "OSC_IN",
        "type": "input",
        "description": "32 MHz main oscillator input, also used as HSE source; use the nominal PCB layout according to the reference design (AN5165)."
      },
      {
        "number": "26",
        "name": "AT0",
        "type": "output",
        "description": "Reserved pin that must be kept unconnected."
      },
      {
        "number": "27",
        "name": "AT1",
        "type": "output",
        "description": "Reserved pin that must be kept unconnected."
      },
      {
        "number": "28",
        "name": "PB0",
        "type": "bidirectional",
        "description": "3.6 V-tolerant TT I/O with alternate functions COMP1_OUT, CM4_EVENTOUT and RF_TX_MOD_EXT_PA; injected current limited to -5/0 mA and high output frequency may impact RF performance."
      },
      {
        "number": "29",
        "name": "PB1",
        "type": "bidirectional",
        "description": "3.6 V-tolerant TT I/O with alternate functions LPUART1_RTS_DE, LPTIM2_IN1 and CM4_EVENTOUT; injected current limited to -5/0 mA and high output frequency may impact RF performance."
      },
      {
        "number": "30",
        "name": "PE4",
        "type": "bidirectional",
        "description": "5 V-tolerant FT I/O with alternate function CM4_EVENTOUT."
      },
      {
        "number": "31",
        "name": "VFBSMPS",
        "type": "power_in",
        "description": "SMPS feedback voltage input, 1.4 to 3.6 V."
      },
      {
        "number": "32",
        "name": "VSSSMPS",
        "type": "power_in",
        "description": "Ground for the SMPS step-down converter that must be connected to GND."
      },
      {
        "number": "33",
        "name": "VLXSMPS",
        "type": "power_out",
        "description": "SMPS switching node connected to the external inductor L1 (2.2 uH for 8 MHz or 10 uH for 4 MHz operation)."
      },
      {
        "number": "34",
        "name": "VDDSMPS",
        "type": "power_in",
        "description": "SMPS supply that must always be connected to VDD, from 1.71 to 3.6 V."
      },
      {
        "number": "35",
        "name": "VDD",
        "type": "power_in",
        "description": "Standard operating voltage supply of 1.71 to 3.6 V for I/Os, the internal regulator and system functions."
      },
      {
        "number": "36",
        "name": "PA10",
        "type": "bidirectional",
        "description": "5 V-tolerant FT_fl I/O (Fm+ capable, LCD function supplied by VLCD); alternate functions include TIM1_CH3, I2C1_SDA, USART1_RX, USB_CRS_SYNC and SAI1_SD_A."
      },
      {
        "number": "37",
        "name": "PA11",
        "type": "bidirectional",
        "description": "5 V-tolerant FT_u I/O with USB function supplied by VDDB, alternate functions TIM1_CH4, SPI1_MISO, USART1_CTS and USB_DM."
      },
      {
        "number": "38",
        "name": "PA12",
        "type": "bidirectional",
        "description": "5 V-tolerant FT_u I/O with USB function supplied by VDDUSB; alternate functions include TIM1_ETR, SPI1_MOSI, LPUART1_RX, USART1_RTS_DE and USB_DP."
      },
      {
        "number": "39",
        "name": "PA13",
        "type": "bidirectional",
        "description": "5 V-tolerant FT_u I/O that after reset is configured as the JTMS-SWDIO debug function, with internal pull-up activated."
      },
      {
        "number": "40",
        "name": "VDDUSB",
        "type": "power_in",
        "description": "USB transceiver supply of 3.0 to 3.6 V when USB is used; must be connected to VDD when not used."
      },
      {
        "number": "41",
        "name": "PA14",
        "type": "bidirectional",
        "description": "5 V-tolerant FT_l I/O that after reset is configured as the JTCK-SWCLK debug function, with internal pull-down activated."
      },
      {
        "number": "42",
        "name": "PA15 (JTDI)",
        "type": "bidirectional",
        "description": "5 V-tolerant FT_l I/O that after reset is configured as the JTDI debug function, with internal pull-up activated; alternate functions include TIM2_CH1, SPI1_NSS and MCO."
      },
      {
        "number": "43",
        "name": "PB3 (JTDO)",
        "type": "bidirectional",
        "description": "5 V-tolerant FT_la I/O with analog switch function supplied by VDDA; alternate functions include JTDO-TRACESWO, TIM2_CH2, SPI1_SCK and USART1_RTS_DE, and additional function COMP2_INM."
      },
      {
        "number": "44",
        "name": "PB4 (NJTRST)",
        "type": "bidirectional",
        "description": "5 V-tolerant FT_fla I/O that after reset is configured as the NJTRST debug function, with internal pull-up activated; alternate functions include I2C3_SDA, SPI1_MISO and USART1_CTS."
      },
      {
        "number": "45",
        "name": "PB5",
        "type": "bidirectional",
        "description": "5 V-tolerant FT_l I/O (LCD function supplied by VLCD); alternate functions include LPTIM1_IN1, I2C1_SMBA, SPI1_MOSI, USART1_CK and LPUART1_TX."
      },
      {
        "number": "46",
        "name": "PB6",
        "type": "bidirectional",
        "description": "5 V-tolerant FT_fla I/O (Fm+ capable, analog switch function supplied by VDDA); alternate functions include LPTIM1_ETR, I2C1_SCL, USART1_TX and MCO, and additional function COMP2_INP."
      },
      {
        "number": "47",
        "name": "PB7",
        "type": "bidirectional",
        "description": "5 V-tolerant FT_fla I/O (Fm+ capable, analog switch function supplied by VDDA); alternate functions include LPTIM1_IN2, TIM1_BKIN, I2C1_SDA and USART1_RX, and additional functions COMP2_INM and PVD_IN."
      },
      {
        "number": "48",
        "name": "VDD",
        "type": "power_in",
        "description": "Standard operating voltage supply of 1.71 to 3.6 V for I/Os, the internal regulator and system functions."
      },
      {
        "number": "49",
        "name": "EP",
        "type": "passive",
        "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-haiku-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Package is UFQFPN48 (7x7 mm), the U suffix in STM32WB55CGU6. Pin numbers and names are from the UFQF"
        ],
        "pages_sent": 103,
        "cost_usd": 0.1379,
        "at": "2026-11-05T23:21:21"
      },
      "datasheet": {
        "url": "https://www.st.com/resource/en/datasheet/stm32wb55cgu6.pdf",
        "pages": 193,
        "sha256": "7eddf71700b00f75",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 49,
        "described": 49,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "stm32wb55cgu6.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          7.0,
          7.0,
          0.77
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "f2b38b0b4bf967c77e683e8d4599608b9f0503055ec535b93c4ebb5d0163e916",
        "checked": "2026-11-05",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "stm32wb55cgu6-etched.step",
        "role": "eda",
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        "seat": "z = 0",
        "extents_mm": [
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        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "1fbbcc352dd4efbcd0b404e21f164e1de47ea848e200c396b25e31189dc65c2d",
        "checked": "2026-11-05",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}