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Initial commit: component/stm32f072c8u6

Ray ·279b62de17 ·2d ago
2 files changed +491
README.mdadded+85
@@ -0,0 +1,85 @@+# STM32F072C8U6++**STMicroelectronics** · Microcontrollers (MCU/MPU/SOC) · UFQFPN-48(7x7)++STM32F072C8U6 from STMicroelectronics, in a UFQFPN-48(7x7). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model, then checked against ST open pin data); symbol, footprint, and 3D from KiCad-official CAD.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | VBAT | power_in | Backup power supply for RTC and backup registers, 1.65 to 3.6 V |+| 2 | PC13 | bidirectional | General-purpose I/O with RTC alarm and periodic wakeup; alternate functions WKUP2, RTC_TAMP1, RTC_TS, RTC_OUT |+| 3 | PC14-OSC32_IN | bidirectional | 32 kHz oscillator input; alternate function OSC32_IN |+| 4 | PC15-OSC32_OUT | bidirectional | 32 kHz oscillator output; alternate function OSC32_OUT |+| 5 | PF0-OSC_IN | bidirectional | High-speed oscillator input pin; alternate functions CRS_SYNC, OSC_IN |+| 6 | PF1-OSC_OUT | bidirectional | High-speed oscillator output pin; alternate function OSC_OUT |+| 7 | NRST | bidirectional | Device reset input / internal reset output with embedded weak pull-up resistor, active low |+| 8 | VSSA | power_in | Analog ground for ADC, DAC, comparators and analog circuits |+| 9 | VDDA | power_in | Analog power supply for ADC, DAC, comparators, oscillators and PLL; minimum 2.4 V when ADC or DAC used |+| 10 | PA0 | bidirectional | GPIO PA0 with ADC_IN0; alternate functions USART2_CTS, TIM2_CH1_ETR, COMP1_OUT, TSC_G1_IO1, USART4_TX; additional functions COMP1_INM6, RTC_TAMP2, WKUP1 |+| 11 | PA1 | bidirectional | GPIO PA1 with ADC_IN1; alternate functions USART2_RTS, TIM2_CH2, TIM15_CH1N, TSC_G1_IO2, USART4_RX, EVENTOUT; additional function COMP1_INP |+| 12 | PA2 | bidirectional | GPIO PA2 with ADC_IN2; alternate functions USART2_TX, COMP2_OUT, TIM2_CH3, TIM15_CH1, TSC_G1_IO3; additional functions COMP2_INM6, WKUP4 |+| 13 | PA3 | bidirectional | GPIO PA3 with ADC_IN3; alternate functions USART2_RX, TIM2_CH4, TIM15_CH2, TSC_G1_IO4; additional function COMP2_INP |+| 14 | PA4 | bidirectional | GPIO PA4 with ADC_IN4, DAC_OUT1; alternate functions SPI1_NSS, I2S1_WS, TIM14_CH1, TSC_G2_IO1, USART2_CK; additional functions COMP1_INM4, COMP2_INM4 |+| 15 | PA5 | bidirectional | GPIO PA5 with ADC_IN5, DAC_OUT2; alternate functions SPI1_SCK, I2S1_CK, CEC, TIM2_CH1_ETR, TSC_G2_IO2; additional functions COMP1_INM5, COMP2_INM5 |+| 16 | PA6 | bidirectional | GPIO PA6 with ADC_IN6; alternate functions SPI1_MISO, I2S1_MCK, TIM3_CH1, TIM1_BKIN, TIM16_CH1, COMP1_OUT, TSC_G2_IO3, EVENTOUT, USART3_CTS |+| 17 | PA7 | bidirectional | GPIO PA7 with ADC_IN7; alternate functions SPI1_MOSI, I2S1_SD, TIM3_CH2, TIM14_CH1, TIM1_CH1N, TIM17_CH1, COMP2_OUT, TSC_G2_IO4, EVENTOUT |+| 18 | PB0 | bidirectional | GPIO PB0 with ADC_IN8; alternate functions TIM3_CH3, TIM1_CH2N, TSC_G3_IO2, EVENTOUT, USART3_CK |+| 19 | PB1 | bidirectional | GPIO PB1 with ADC_IN9; alternate functions TIM3_CH4, USART3_RTS, TIM14_CH1, TIM1_CH3N, TSC_G3_IO3 |+| 20 | PB2 | bidirectional | GPIO PB2 with 5V tolerance; alternate function TSC_G3_IO4 |+| 21 | PB10 | bidirectional | GPIO PB10 with 5V tolerance; alternate functions SPI2_SCK, I2C2_SCL, USART3_TX, CEC, TSC_SYNC, TIM2_CH3 |+| 22 | PB11 | bidirectional | GPIO PB11 with 5V tolerance; alternate functions USART3_RX, TIM2_CH4, EVENTOUT, TSC_G6_IO1, I2C2_SDA |+| 23 | VSS | power_in | Ground connection for digital circuits |+| 24 | VDD | power_in | Digital power supply, 2.0 to 3.6 V for I/Os and internal regulator |+| 25 | PB12 | bidirectional | GPIO PB12 with 5V tolerance; alternate functions TIM1_BKIN, TIM15_BKIN, SPI2_NSS, I2S2_WS, USART3_CK, TSC_G6_IO2, EVENTOUT |+| 26 | PB13 | bidirectional | GPIO PB13 with 5V tolerance and FM+ capability; alternate functions SPI2_SCK, I2S2_CK, I2C2_SCL, USART3_CTS, TIM1_CH1N, TSC_G6_IO3 |+| 27 | PB14 | bidirectional | GPIO PB14 with 5V tolerance and FM+ capability; alternate functions SPI2_MISO, I2S2_MCK, I2C2_SDA, USART3_RTS, TIM1_CH2N, TIM15_CH1, TSC_G6_IO4 |+| 28 | PB15 | bidirectional | GPIO PB15 with 5V tolerance; alternate functions SPI2_MOSI, I2S2_SD, TIM1_CH3N, TIM15_CH1N, TIM15_CH2; additional functions WKUP7, RTC_REFIN |+| 29 | PA8 | bidirectional | GPIO PA8 supplied from VDDIO2 with 5V tolerance; alternate functions USART1_CK, TIM1_CH1, EVENTOUT, MCO, CRS_SYNC |+| 30 | PA9 | bidirectional | GPIO PA9 supplied from VDDIO2 with 5V tolerance; alternate functions USART1_TX, TIM1_CH2, TIM15_BKIN, TSC_G4_IO1 |+| 31 | PA10 | bidirectional | GPIO PA10 supplied from VDDIO2 with 5V tolerance; alternate functions USART1_RX, TIM1_CH3, TIM17_BKIN, TSC_G4_IO2 |+| 32 | PA11 | bidirectional | GPIO PA11 supplied from VDDIO2 with 5V tolerance and USB_DM pin; alternate functions CAN_RX, USART1_CTS, TIM1_CH4, COMP1_OUT, TSC_G4_IO3, EVENTOUT; additional function USB_DM |+| 33 | PA12 | bidirectional | GPIO PA12 supplied from VDDIO2 with 5V tolerance and USB_DP pin; alternate functions CAN_TX, USART1_RTS, TIM1_ETR, COMP2_OUT, TSC_G4_IO4, EVENTOUT; additional function USB_DP |+| 34 | PA13 | bidirectional | GPIO PA13 supplied from VDDIO2 with 5V tolerance; after reset configured as SWDIO with internal pull-up; alternate functions IR_OUT, SWDIO, USB_NOE |+| 35 | VSS | power_in | Ground connection for digital circuits |+| 36 | VDDIO2 | power_in | Independent digital power supply for selected I/Os, 1.65 to 3.6 V; monitored against internal reference voltage |+| 37 | PA14 | bidirectional | GPIO PA14 supplied from VDDIO2 with 5V tolerance; after reset configured as SWCLK with internal pull-down; alternate function USART2_TX, SWCLK |+| 38 | PA15 | bidirectional | GPIO PA15 supplied from VDDIO2 with 5V tolerance; alternate functions SPI1_NSS, I2S1_WS, USART2_RX, USART4_RTS, TIM2_CH1_ETR, EVENTOUT |+| 39 | PB3 | bidirectional | GPIO PB3 with 5V tolerance; alternate functions SPI1_SCK, I2S1_CK, TIM2_CH2, TSC_G5_IO1, EVENTOUT |+| 40 | PB4 | bidirectional | GPIO PB4 with 5V tolerance; alternate functions SPI1_MISO, I2S1_MCK, TIM17_BKIN, TIM3_CH1, TSC_G5_IO2, EVENTOUT |+| 41 | PB5 | bidirectional | GPIO PB5 with 5V tolerance; alternate functions SPI1_MOSI, I2S1_SD, I2C1_SMBA, TIM16_BKIN, TIM3_CH2; additional function WKUP6 |+| 42 | PB6 | bidirectional | GPIO PB6 with 5V tolerance and FM+ capability; alternate functions I2C1_SCL, USART1_TX, TIM16_CH1N, TSC_G5_IO3 |+| 43 | PB7 | bidirectional | GPIO PB7 with 5V tolerance and FM+ capability; alternate functions I2C1_SDA, USART1_RX, USART4_CTS, TIM17_CH1N, TSC_G5_IO4 |+| 44 | BOOT0 | input | Boot memory selection pin; determines boot from User Flash, System Memory, or embedded SRAM |+| 45 | PB8 | bidirectional | GPIO PB8 with 5V tolerance and FM+ capability; alternate functions I2C1_SCL, CEC, TIM16_CH1, TSC_SYNC, CAN_RX |+| 46 | PB9 | bidirectional | GPIO PB9 with 5V tolerance and FM+ capability; alternate functions SPI2_NSS, I2S2_WS, I2C1_SDA, IR_OUT, TIM17_CH1, EVENTOUT, CAN_TX |+| 47 | VSS | power_in | Ground connection for digital circuits |+| 48 | VDD | power_in | Digital power supply, 2.0 to 3.6 V for I/Os and internal regulator |+| 49 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | STMicroelectronics |+| Package | UFQFPN-48(7x7) |+| Category | Embedded Processors & Controllers |+| Pins | 49 |++## CAD (KiCad official)++- Symbol: `STM32F072C8U6`+- Footprint: `Package_DFN_QFN:QFN-48-1EP_7x7mm_P0.5mm_EP5.15x5.15mm`+- 3D model: UFQFPN-48(7x7) (KiCad packages3D, STEP)+- 3D model files: `stm32f072c8u6-etched.step` / `stm32f072c8u6-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `stm32f072c8u6.step` / `stm32f072c8u6.glb` are the bare package body.++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [STMicroelectronics datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588893156209537024) (128 pp, sha256 `b01391f094699aeb`, retrieved 2026-10-06, tier: lcsc)+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-sonnet-5-5` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.+- **CAD:** KiCad official libraries (CC-BY-SA 4.0).++[Datasheet PDF](docs/stm32f072c8u6-datasheet.pdf)
page.jsonadded+406
@@ -0,0 +1,406 @@+{+  "slug": "stm32f072c8u6",+  "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",+    "stm32f072c8u6",+    "factory-2.0.0",+    "extractor-text"+  ],+  "dependencies": {},+  "hero": {+    "type": "image",+    "path": "docs/hero.png"+  },+  "files": [+    "page.json",+    "README.md",+    "stm32f072c8u6.kicad_sym",+    "stm32f072c8u6.kicad_mod",+    "stm32f072c8u6.glb",+    "stm32f072c8u6.step",+    "stm32f072c8u6.lbr",+    "docs/hero.png",+    "docs/stm32f072c8u6-datasheet.pdf",+    "viewers/symbol.html",+    "viewers/footprint.html",+    "stm32f072c8u6-hero.glb",+    "stm32f072c8u6-hero.overlay.json"+  ],+  "component": {+    "mpn": "STM32F072C8U6",+    "manufacturer": "STMicroelectronics",+    "package": "UFQFPN-48(7x7)",+    "pin_count": 49,+    "category": "Embedded Processors & Controllers",+    "subcategory": "Microcontrollers (MCU/MPU/SOC)",+    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588893156209537024",+    "parts": {+      "symbol": "stm32f072c8u6.kicad_sym",+      "footprint": "stm32f072c8u6.kicad_mod",+      "model_3d": "stm32f072c8u6-hero.glb",+      "model_3d_plain": "stm32f072c8u6.glb",+      "model_3d_step": "stm32f072c8u6-etched.step",+      "model_3d_step_plain": "stm32f072c8u6.step",+      "lbr": "stm32f072c8u6.lbr"+    },+    "distributor_links": {+      "lcsc": 784818,+      "digikey": "497-17360-ND",+      "mouser": "511-STM32F072C8U6"+    },+    "distributor_check": {+      "checked_at": "2026-10-06T01:43:14Z",+      "source": "Component Ocean /api/assign-pns",+      "digikey": {+        "pn": "497-17360-ND",+        "status": "found"+      },+      "mouser": {+        "pn": "511-STM32F072C8U6",+        "status": "found"+      }+    },+    "pins": [+      {+        "number": "1",+        "name": "VBAT",+        "type": "power_in",+        "description": "Backup power supply for RTC and backup registers, 1.65 to 3.6 V"+      },+      {+        "number": "2",+        "name": "PC13",+        "type": "bidirectional",+        "description": "General-purpose I/O with RTC alarm and periodic wakeup; alternate functions WKUP2, RTC_TAMP1, RTC_TS, RTC_OUT"+      },+      {+        "number": "3",+        "name": "PC14-OSC32_IN",+        "type": "bidirectional",+        "description": "32 kHz oscillator input; alternate function OSC32_IN"+      },+      {+        "number": "4",+        "name": "PC15-OSC32_OUT",+        "type": "bidirectional",+        "description": "32 kHz oscillator output; alternate function OSC32_OUT"+      },+      {+        "number": "5",+        "name": "PF0-OSC_IN",+        "type": "bidirectional",+        "description": "High-speed oscillator input pin; alternate functions CRS_SYNC, OSC_IN"+      },+      {+        "number": "6",+        "name": "PF1-OSC_OUT",+        "type": "bidirectional",+        "description": "High-speed oscillator output pin; alternate function OSC_OUT"+      },+      {+        "number": "7",+        "name": "NRST",+        "type": "bidirectional",+        "description": "Device reset input / internal reset output with embedded weak pull-up resistor, active low"+      },+      {+        "number": "8",+        "name": "VSSA",+        "type": "power_in",+        "description": "Analog ground for ADC, DAC, comparators and analog circuits"+      },+      {+        "number": "9",+        "name": "VDDA",+        "type": "power_in",+        "description": "Analog power supply for ADC, DAC, comparators, oscillators and PLL; minimum 2.4 V when ADC or DAC used"+      },+      {+        "number": "10",+        "name": "PA0",+        "type": "bidirectional",+        "description": "GPIO PA0 with ADC_IN0; alternate functions USART2_CTS, TIM2_CH1_ETR, COMP1_OUT, TSC_G1_IO1, USART4_TX; additional functions COMP1_INM6, RTC_TAMP2, WKUP1"+      },+      {+        "number": "11",+        "name": "PA1",+        "type": "bidirectional",+        "description": "GPIO PA1 with ADC_IN1; alternate functions USART2_RTS, TIM2_CH2, TIM15_CH1N, TSC_G1_IO2, USART4_RX, EVENTOUT; additional function COMP1_INP"+      },+      {+        "number": "12",+        "name": "PA2",+        "type": "bidirectional",+        "description": "GPIO PA2 with ADC_IN2; alternate functions USART2_TX, COMP2_OUT, TIM2_CH3, TIM15_CH1, TSC_G1_IO3; additional functions COMP2_INM6, WKUP4"+      },+      {+        "number": "13",+        "name": "PA3",+        "type": "bidirectional",+        "description": "GPIO PA3 with ADC_IN3; alternate functions USART2_RX, TIM2_CH4, TIM15_CH2, TSC_G1_IO4; additional function COMP2_INP"+      },+      {+        "number": "14",+        "name": "PA4",+        "type": "bidirectional",+        "description": "GPIO PA4 with ADC_IN4, DAC_OUT1; alternate functions SPI1_NSS, I2S1_WS, TIM14_CH1, TSC_G2_IO1, USART2_CK; additional functions COMP1_INM4, COMP2_INM4"+      },+      {+        "number": "15",+        "name": "PA5",+        "type": "bidirectional",+        "description": "GPIO PA5 with ADC_IN5, DAC_OUT2; alternate functions SPI1_SCK, I2S1_CK, CEC, TIM2_CH1_ETR, TSC_G2_IO2; additional functions COMP1_INM5, COMP2_INM5"+      },+      {+        "number": "16",+        "name": "PA6",+        "type": "bidirectional",+        "description": "GPIO PA6 with ADC_IN6; alternate functions SPI1_MISO, I2S1_MCK, TIM3_CH1, TIM1_BKIN, TIM16_CH1, COMP1_OUT, TSC_G2_IO3, EVENTOUT, USART3_CTS"+      },+      {+        "number": "17",+        "name": "PA7",+        "type": "bidirectional",+        "description": "GPIO PA7 with ADC_IN7; alternate functions SPI1_MOSI, I2S1_SD, TIM3_CH2, TIM14_CH1, TIM1_CH1N, TIM17_CH1, COMP2_OUT, TSC_G2_IO4, EVENTOUT"+      },+      {+        "number": "18",+        "name": "PB0",+        "type": "bidirectional",+        "description": "GPIO PB0 with ADC_IN8; alternate functions TIM3_CH3, TIM1_CH2N, TSC_G3_IO2, EVENTOUT, USART3_CK"+      },+      {+        "number": "19",+        "name": "PB1",+        "type": "bidirectional",+        "description": "GPIO PB1 with ADC_IN9; alternate functions TIM3_CH4, USART3_RTS, TIM14_CH1, TIM1_CH3N, TSC_G3_IO3"+      },+      {+        "number": "20",+        "name": "PB2",+        "type": "bidirectional",+        "description": "GPIO PB2 with 5V tolerance; alternate function TSC_G3_IO4"+      },+      {+        "number": "21",+        "name": "PB10",+        "type": "bidirectional",+        "description": "GPIO PB10 with 5V tolerance; alternate functions SPI2_SCK, I2C2_SCL, USART3_TX, CEC, TSC_SYNC, TIM2_CH3"+      },+      {+        "number": "22",+        "name": "PB11",+        "type": "bidirectional",+        "description": "GPIO PB11 with 5V tolerance; alternate functions USART3_RX, TIM2_CH4, EVENTOUT, TSC_G6_IO1, I2C2_SDA"+      },+      {+        "number": "23",+        "name": "VSS",+        "type": "power_in",+        "description": "Ground connection for digital circuits"+      },+      {+        "number": "24",+        "name": "VDD",+        "type": "power_in",+        "description": "Digital power supply, 2.0 to 3.6 V for I/Os and internal regulator"+      },+      {+        "number": "25",+        "name": "PB12",+        "type": "bidirectional",+        "description": "GPIO PB12 with 5V tolerance; alternate functions TIM1_BKIN, TIM15_BKIN, SPI2_NSS, I2S2_WS, USART3_CK, TSC_G6_IO2, EVENTOUT"+      },+      {+        "number": "26",+        "name": "PB13",+        "type": "bidirectional",+        "description": "GPIO PB13 with 5V tolerance and FM+ capability; alternate functions SPI2_SCK, I2S2_CK, I2C2_SCL, USART3_CTS, TIM1_CH1N, TSC_G6_IO3"+      },+      {+        "number": "27",+        "name": "PB14",+        "type": "bidirectional",+        "description": "GPIO PB14 with 5V tolerance and FM+ capability; alternate functions SPI2_MISO, I2S2_MCK, I2C2_SDA, USART3_RTS, TIM1_CH2N, TIM15_CH1, TSC_G6_IO4"+      },+      {+        "number": "28",+        "name": "PB15",+        "type": "bidirectional",+        "description": "GPIO PB15 with 5V tolerance; alternate functions SPI2_MOSI, I2S2_SD, TIM1_CH3N, TIM15_CH1N, TIM15_CH2; additional functions WKUP7, RTC_REFIN"+      },+      {+        "number": "29",+        "name": "PA8",+        "type": "bidirectional",+        "description": "GPIO PA8 supplied from VDDIO2 with 5V tolerance; alternate functions USART1_CK, TIM1_CH1, EVENTOUT, MCO, CRS_SYNC"+      },+      {+        "number": "30",+        "name": "PA9",+        "type": "bidirectional",+        "description": "GPIO PA9 supplied from VDDIO2 with 5V tolerance; alternate functions USART1_TX, TIM1_CH2, TIM15_BKIN, TSC_G4_IO1"+      },+      {+        "number": "31",+        "name": "PA10",+        "type": "bidirectional",+        "description": "GPIO PA10 supplied from VDDIO2 with 5V tolerance; alternate functions USART1_RX, TIM1_CH3, TIM17_BKIN, TSC_G4_IO2"+      },+      {+        "number": "32",+        "name": "PA11",+        "type": "bidirectional",+        "description": "GPIO PA11 supplied from VDDIO2 with 5V tolerance and USB_DM pin; alternate functions CAN_RX, USART1_CTS, TIM1_CH4, COMP1_OUT, TSC_G4_IO3, EVENTOUT; additional function USB_DM"+      },+      {+        "number": "33",+        "name": "PA12",+        "type": "bidirectional",+        "description": "GPIO PA12 supplied from VDDIO2 with 5V tolerance and USB_DP pin; alternate functions CAN_TX, USART1_RTS, TIM1_ETR, COMP2_OUT, TSC_G4_IO4, EVENTOUT; additional function USB_DP"+      },+      {+        "number": "34",+        "name": "PA13",+        "type": "bidirectional",+        "description": "GPIO PA13 supplied from VDDIO2 with 5V tolerance; after reset configured as SWDIO with internal pull-up; alternate functions IR_OUT, SWDIO, USB_NOE"+      },+      {+        "number": "35",+        "name": "VSS",+        "type": "power_in",+        "description": "Ground connection for digital circuits"+      },+      {+        "number": "36",+        "name": "VDDIO2",+        "type": "power_in",+        "description": "Independent digital power supply for selected I/Os, 1.65 to 3.6 V; monitored against internal reference voltage"+      },+      {+        "number": "37",+        "name": "PA14",+        "type": "bidirectional",+        "description": "GPIO PA14 supplied from VDDIO2 with 5V tolerance; after reset configured as SWCLK with internal pull-down; alternate function USART2_TX, SWCLK"+      },+      {+        "number": "38",+        "name": "PA15",+        "type": "bidirectional",+        "description": "GPIO PA15 supplied from VDDIO2 with 5V tolerance; alternate functions SPI1_NSS, I2S1_WS, USART2_RX, USART4_RTS, TIM2_CH1_ETR, EVENTOUT"+      },+      {+        "number": "39",+        "name": "PB3",+        "type": "bidirectional",+        "description": "GPIO PB3 with 5V tolerance; alternate functions SPI1_SCK, I2S1_CK, TIM2_CH2, TSC_G5_IO1, EVENTOUT"+      },+      {+        "number": "40",+        "name": "PB4",+        "type": "bidirectional",+        "description": "GPIO PB4 with 5V tolerance; alternate functions SPI1_MISO, I2S1_MCK, TIM17_BKIN, TIM3_CH1, TSC_G5_IO2, EVENTOUT"+      },+      {+        "number": "41",+        "name": "PB5",+        "type": "bidirectional",+        "description": "GPIO PB5 with 5V tolerance; alternate functions SPI1_MOSI, I2S1_SD, I2C1_SMBA, TIM16_BKIN, TIM3_CH2; additional function WKUP6"+      },+      {+        "number": "42",+        "name": "PB6",+        "type": "bidirectional",+        "description": "GPIO PB6 with 5V tolerance and FM+ capability; alternate functions I2C1_SCL, USART1_TX, TIM16_CH1N, TSC_G5_IO3"+      },+      {+        "number": "43",+        "name": "PB7",+        "type": "bidirectional",+        "description": "GPIO PB7 with 5V tolerance and FM+ capability; alternate functions I2C1_SDA, USART1_RX, USART4_CTS, TIM17_CH1N, TSC_G5_IO4"+      },+      {+        "number": "44",+        "name": "BOOT0",+        "type": "input",+        "description": "Boot memory selection pin; determines boot from User Flash, System Memory, or embedded SRAM"+      },+      {+        "number": "45",+        "name": "PB8",+        "type": "bidirectional",+        "description": "GPIO PB8 with 5V tolerance and FM+ capability; alternate functions I2C1_SCL, CEC, TIM16_CH1, TSC_SYNC, CAN_RX"+      },+      {+        "number": "46",+        "name": "PB9",+        "type": "bidirectional",+        "description": "GPIO PB9 with 5V tolerance and FM+ capability; alternate functions SPI2_NSS, I2S2_WS, I2C1_SDA, IR_OUT, TIM17_CH1, EVENTOUT, CAN_TX"+      },+      {+        "number": "47",+        "name": "VSS",+        "type": "power_in",+        "description": "Ground connection for digital circuits"+      },+      {+        "number": "48",+        "name": "VDD",+        "type": "power_in",+        "description": "Digital power supply, 2.0 to 3.6 V for I/Os and internal regulator"+      },+      {+        "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-4-5-20251001",+        "primary_mode": "text",+        "consensus_model": "claude-sonnet-5-5",+        "consensus": "agreed",+        "guards": "pin_guards 0.1: passed",+        "guard_notes": [+          "extractor flagged: PC13, PC14, PC15 are power-switched GPIO pins with limited current capability (3 mA max) per note 1 ; Pins 29-34 and 37-38 (PA8-PA15) are supplied from VDDIO2 rail per note 3 on page 42; independent pow",+          "exposed pad 49 added from the footprint"+        ],+        "pages_sent": 65,+        "cost_usd": 0.4687,+        "at": "2026-10-06T01:42:56"+      },+      "datasheet": {+        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588893156209537024",+        "pages": 128,+        "sha256": "b01391f094699aeb",+        "source_tier": "lcsc"+      },+      "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"+    }+  },+  "visibility": "public",+  "org": "adom",+  "author": {+    "name": "Ray",+    "email": "[email protected]"+  }+}\ No newline at end of file