BLUENRG-355AC

{
  "schema_version": 1,
  "type": "component",
  "slug": "bluenrg-355ac",
  "title": "BLUENRG-355AC",
  "brief": "STMicroelectronics RF Transceiver ICs, QFN-32-EP(5x5). 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",
    "rf and wireless",
    "bluenrg-355ac",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "BLUENRG-355AC",
    "manufacturer": "STMicroelectronics",
    "package": "QFN-32-EP(5x5)",
    "pin_count": 33,
    "category": "RF And Wireless",
    "subcategory": "RF Transceiver ICs",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590887575547043840",
    "parts": {
      "symbol": "bluenrg-355ac.kicad_sym",
      "footprint": "bluenrg-355ac.kicad_mod",
      "model_3d": "bluenrg-355ac-etched.glb",
      "model_3d_plain": "bluenrg-355ac.glb",
      "model_3d_step": "bluenrg-355ac-etched.step",
      "model_3d_step_plain": "bluenrg-355ac.step",
      "lbr": "bluenrg-355ac.lbr"
    },
    "distributor_links": {
      "lcsc": "C3606777"
    },
    "pins": [
      {
        "number": "1",
        "name": "PB3",
        "type": "bidirectional",
        "description": "I/O pin with 5 V tolerance; supports USART_CTS, LPUART_TX, TIM1_CH4 alternate functions; ADC_VINP0 analog input; wakeup capable."
      },
      {
        "number": "2",
        "name": "PB2",
        "type": "bidirectional",
        "description": "I/O pin with 5 V tolerance; supports USART_RTS_DE, PDM_DATA, TIM1_CH3 alternate functions; ADC_VINM0 analog input; wakeup capable."
      },
      {
        "number": "3",
        "name": "PB1",
        "type": "bidirectional",
        "description": "I/O pin with 5 V tolerance; supports SPI1_NSS, PDM_CLK, TIM1_ETR alternate functions; ADC_VINP1 analog input; wakeup capable."
      },
      {
        "number": "4",
        "name": "PB0",
        "type": "bidirectional",
        "description": "I/O pin with 5 V tolerance; supports USART_RX, LPUART_RTS_DE, TIM1_CH2N alternate functions; ADC_VINM1 analog input; wakeup capable."
      },
      {
        "number": "5",
        "name": "PA11",
        "type": "bidirectional",
        "description": "I/O pin with 5 V tolerance; supports MCO, SPI1_NSS, RX_SEQUENCE, SPI3_MOSI, TIM1_CH6, I2S3_SD alternate functions; provides GPIO output and RTC_OUT in DEEPSTOP mode; wakeup capable."
      },
      {
        "number": "6",
        "name": "PA10",
        "type": "bidirectional",
        "description": "I/O pin with 5 V tolerance; supports LCO, SPI1_MISO, TX_SEQUENCE, SPI3_MCK, TIM1_CH5, I2S3_MCK alternate functions; BOOT pin configuration; GPIO output in DEEPSTOP mode; wakeup capable."
      },
      {
        "number": "7",
        "name": "PA9",
        "type": "bidirectional",
        "description": "I/O pin with 5 V tolerance; supports USART_TX, SPI1_SCK, RTC_OUT, SPI3_NSS, TIM1_CH4, I2S3_WS alternate functions; GPIO output in DEEPSTOP mode; wakeup capable."
      },
      {
        "number": "8",
        "name": "PA8",
        "type": "bidirectional",
        "description": "I/O pin with 5 V tolerance; supports USART_RX, SPI1_MOSI, RX_SEQUENCE, SPI3_MISO, TIM1_CH3, I2S3_MISO alternate functions; GPIO output in DEEPSTOP mode; wakeup capable."
      },
      {
        "number": "9",
        "name": "PA0",
        "type": "bidirectional",
        "description": "I/O pin with 5 V tolerance and Fm+ capable; supports I2C1_SCL, USART_CTS, SPI2_MCK, TIM1_CH3, I2S2_MCK alternate functions; wakeup capable."
      },
      {
        "number": "10",
        "name": "PA1",
        "type": "bidirectional",
        "description": "I/O pin with 5 V tolerance and Fm+ capable; supports I2C1_SDA, SPI2_MISO, USART_TX, TIM1_CH4, I2S2_MISO alternate functions; wakeup capable."
      },
      {
        "number": "11",
        "name": "PA2",
        "type": "bidirectional",
        "description": "I/O pin with 5 V tolerance; supports SWDIO, USART_CK, TIM_BKIN, SPI3_MCK, TIM1_CH5, I2S3_MCK alternate functions; wakeup capable."
      },
      {
        "number": "12",
        "name": "PA3",
        "type": "bidirectional",
        "description": "I/O pin with 5 V tolerance; supports SWCLK, USART_RTS_DE, TIM_BKIN2, SPI3_SCK, TIM1_CH6, I2S3_SCK alternate functions; wakeup capable."
      },
      {
        "number": "13",
        "name": "VDD2",
        "type": "power_in",
        "description": "Battery voltage supply input, 1.7 to 3.6 V."
      },
      {
        "number": "14",
        "name": "RF1",
        "type": "bidirectional",
        "description": "RF input/output with 50 Ω characteristic impedance for antenna connection."
      },
      {
        "number": "15",
        "name": "VDDRF",
        "type": "power_in",
        "description": "RF battery voltage supply input, 1.7 to 3.6 V."
      },
      {
        "number": "16",
        "name": "OSCOUT",
        "type": "bidirectional",
        "description": "32 MHz oscillator output for external crystal oscillator circuit."
      },
      {
        "number": "17",
        "name": "OSCIN",
        "type": "bidirectional",
        "description": "32 MHz oscillator input for external crystal oscillator circuit."
      },
      {
        "number": "18",
        "name": "PB15",
        "type": "bidirectional",
        "description": "I/O pin with 5 V tolerance; supports I2C1_SMBA, TX_SEQUENCE, MCO, TIM1_CH4N, TIM1_CH6, USART_TX alternate functions."
      },
      {
        "number": "19",
        "name": "PB14",
        "type": "bidirectional",
        "description": "I/O pin with 5 V tolerance and analog switch; supports SPI1_MOSI, I2C2_SDA, TIM1_ETR, TIM1_CH3N, TIM1_CH5, USART_RX alternate functions; VIN_PVD analog input."
      },
      {
        "number": "20",
        "name": "PB13",
        "type": "bidirectional",
        "description": "I/O pin with 5 V tolerance; supports SPI1_MISO, I2C2_SCL, PDM_CLK, TIM1_BKIN2, TIM1_CH4 alternate functions; SXTAL1 function for crystal oscillator."
      },
      {
        "number": "21",
        "name": "PB12",
        "type": "bidirectional",
        "description": "I/O pin with 5 V tolerance; supports SPI1_SCK, LCO, PDM_DATA, TIM1_BKIN, TIM1_CH3 alternate functions; SXTAL0 function for crystal oscillator."
      },
      {
        "number": "22",
        "name": "VFBSD",
        "type": "passive",
        "description": "SMPS feedback voltage output for DC-DC converter step-down regulator."
      },
      {
        "number": "23",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground connection."
      },
      {
        "number": "24",
        "name": "VLXSD",
        "type": "passive",
        "description": "SMPS inductor voltage input/output node."
      },
      {
        "number": "25",
        "name": "VDDSD",
        "type": "power_in",
        "description": "Battery voltage supply input for SMPS, 1.7 to 3.6 V."
      },
      {
        "number": "26",
        "name": "RSTN",
        "type": "input",
        "description": "Active-low reset input with internal pull-up resistor (25-55 kΩ) and 200 mV Schmitt trigger hysteresis."
      },
      {
        "number": "27",
        "name": "VCAP",
        "type": "passive",
        "description": "Digital core voltage regulator output, nominally 1.2 V."
      },
      {
        "number": "28",
        "name": "PB7",
        "type": "bidirectional",
        "description": "I/O pin with 5 V tolerance and Fm+ capable; supports I2C2_SDA, SPI2_SCK, LPUART_RX, TIM1_CH2, I2S2_SCK alternate functions; wakeup capable."
      },
      {
        "number": "29",
        "name": "PB6",
        "type": "bidirectional",
        "description": "I/O pin with 5 V tolerance and Fm+ capable; supports I2C2_SCL, SPI2_NSS, LPUART_TX, TIM1_CH1, I2S2_WS alternate functions; wakeup capable."
      },
      {
        "number": "30",
        "name": "PB5",
        "type": "bidirectional",
        "description": "I/O pin with 3.6 V tolerance; supports LPUART_RX, SPI2_MOSI, PDM_CLK, I2S2_SD alternate functions; PGA_VBIAS_MIC analog output; wakeup capable."
      },
      {
        "number": "31",
        "name": "PB4",
        "type": "bidirectional",
        "description": "I/O pin with 5 V tolerance; supports LPUART_TX, SPI2_MISO, PDM_DATA, I2S2_MISO alternate functions; PGA_VIN analog input; wakeup capable."
      },
      {
        "number": "32",
        "name": "VDD1",
        "type": "power_in",
        "description": "Battery voltage supply input, 1.7 to 3.6 V."
      },
      {
        "number": "33",
        "name": "EP",
        "type": "passive",
        "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.2",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.2",
        "primary_model": "claude-haiku-4-5-20251001",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: OSCOUT and OSCIN pins marked as bidirectional; datasheet indicates these are oscillator input/output; VCAP and VFBSD marked as passive; these are regulator-related voltage nodes that could alternatively",
          "exposed pad 33 added from the footprint",
          "dropped thermal pad ['EP'] absent from footprint"
        ],
        "pages_sent": 73,
        "cost_usd": 0.781,
        "at": "2026-09-24T09:34:58"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590887575547043840",
        "pages": 73,
        "sha256": "c3c8def9f2699f65",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 33,
        "described": 33,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "bluenrg-355ac.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          5.0,
          5.0,
          0.875
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "5fa713ea46b36980895812ed853577889b7cb06d275041a39b99bc0be305dc79",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "bluenrg-355ac-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          5.0,
          5.0,
          0.875
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "f8fb0060f49f410a7db55d6e781226031cc04377aa846f3ee81408107d5a5f90",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "STMicroelectronics",
      "Package": "QFN-32-EP(5x5)",
      "Category": "RF And Wireless",
      "Pins": "33"
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "bluenrg-355ac"
  ],
  "discovery_pitch": "BLUENRG-355AC (STMicroelectronics) 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",
    "bluenrg-355ac.kicad_sym",
    "bluenrg-355ac.kicad_mod",
    "bluenrg-355ac.glb",
    "bluenrg-355ac.step",
    "bluenrg-355ac.lbr",
    "docs/hero.png",
    "docs/bluenrg-355ac-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  }
}