component
STM32F103CBT7
Public Made by Adomby adom
STMicroelectronics Microcontrollers (MCU/MPU/SOC), LQFP-48(7x7). Pinout checked against ST's open pin data, KiCad symbol/footprint/3D.
← Commit history
README.mdadded+84@@ -0,0 +1,84 @@+# STM32F103CBT7++**STMicroelectronics** · Microcontrollers (MCU/MPU/SOC) · LQFP-48(7x7)++STM32F103CBT7 from STMicroelectronics, in a LQFP-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 supply for RTC and backup registers, 1.8 to 3.6 V |+| 2 | PC13-TAMPER-RTC | bidirectional | General-purpose I/O port on backup domain or tamper alarm input |+| 3 | PC14-OSC32_IN | bidirectional | 32 kHz oscillator input on backup domain |+| 4 | PC15-OSC32_OUT | bidirectional | 32 kHz oscillator output on backup domain |+| 5 | OSC_IN | input | Main oscillator input for external high-speed crystal, 4 to 16 MHz |+| 6 | OSC_OUT | output | Main oscillator output for external high-speed crystal |+| 7 | NRST | bidirectional | External reset pin with internal pull-up, active low |+| 8 | VSSA | power_in | Analog ground |+| 9 | VDDA | power_in | Analog power supply, 1.8 to 3.6 V |+| 10 | PA0-WKUP | bidirectional | General-purpose I/O port with external wakeup capability |+| 11 | PA1 | bidirectional | General-purpose I/O port, supports USART2_RTS, ADC12_IN1, TIM2_CH2 |+| 12 | PA2 | bidirectional | General-purpose I/O port, supports USART2_TX, ADC12_IN2, TIM2_CH3 |+| 13 | PA3 | bidirectional | General-purpose I/O port, supports USART2_RX, ADC12_IN3, TIM2_CH4 |+| 14 | PA4 | bidirectional | General-purpose I/O port, supports SPI1_NSS, USART2_CK, ADC12_IN4 |+| 15 | PA5 | bidirectional | General-purpose I/O port, supports SPI1_SCK, ADC12_IN5 |+| 16 | PA6 | bidirectional | General-purpose I/O port, supports SPI1_MISO, ADC12_IN6, TIM3_CH1 |+| 17 | PA7 | bidirectional | General-purpose I/O port, supports SPI1_MOSI, ADC12_IN7, TIM3_CH2 |+| 18 | PB0 | bidirectional | General-purpose I/O port, supports ADC12_IN8, TIM3_CH3 |+| 19 | PB1 | bidirectional | General-purpose I/O port, supports ADC12_IN9, TIM3_CH4 |+| 20 | PB2 | bidirectional | General-purpose I/O port, BOOT1 configuration pin |+| 21 | PB10 | bidirectional | 5 V tolerant general-purpose I/O port, supports I2C2_SCL, USART3_TX |+| 22 | PB11 | bidirectional | 5 V tolerant general-purpose I/O port, supports I2C2_SDA, USART3_RX |+| 23 | VSS_1 | power_in | Ground |+| 24 | VDD_1 | power_in | Main power supply, 1.8 to 3.6 V |+| 25 | PB12 | bidirectional | 5 V tolerant general-purpose I/O port, supports SPI2_NSS, I2C2_SMBAI, USART3_CK |+| 26 | PB13 | bidirectional | 5 V tolerant general-purpose I/O port, supports SPI2_SCK, USART3_CTS |+| 27 | PB14 | bidirectional | 5 V tolerant general-purpose I/O port, supports SPI2_MISO, USART3_RTS |+| 28 | PB15 | bidirectional | 5 V tolerant general-purpose I/O port, supports SPI2_MOSI |+| 29 | PA8 | bidirectional | 5 V tolerant general-purpose I/O port, supports USART1_CK, TIM1_CH1, MCO |+| 30 | PA9 | bidirectional | 5 V tolerant general-purpose I/O port, supports USART1_TX, TIM1_CH2 |+| 31 | PA10 | bidirectional | 5 V tolerant general-purpose I/O port, supports USART1_RX, TIM1_CH3 |+| 32 | PA11 | bidirectional | 5 V tolerant general-purpose I/O port, supports USART1_CTS, CAN_RX, USB_DM, TIM1_CH4 |+| 33 | PA12 | bidirectional | 5 V tolerant general-purpose I/O port, supports USART1_RTS, CAN_TX, USB_DP, TIM1_ETR |+| 34 | PA13 | bidirectional | 5 V tolerant general-purpose I/O port or JTMS/SWDIO debug port |+| 35 | VSS_2 | power_in | Ground |+| 36 | VDD_2 | power_in | Main power supply, 1.8 to 3.6 V |+| 37 | PA14 | bidirectional | 5 V tolerant general-purpose I/O port or JTCK/SWCLK debug port |+| 38 | PA15 | bidirectional | 5 V tolerant general-purpose I/O port or JTDI debug port, remappable to TIM2_CH1_ETR or SPI1_NSS |+| 39 | PB3 | bidirectional | 5 V tolerant general-purpose I/O port or JTDO/TRACESWO debug port, remappable to TIM2_CH2 or SPI1_SCK |+| 40 | PB4 | bidirectional | 5 V tolerant general-purpose I/O port or JNTRST debug port, remappable to TIM3_CH1 or SPI1_MISO |+| 41 | PB5 | bidirectional | General-purpose I/O port, supports I2C1_SMBA, remappable to TIM3_CH2 or SPI1_MOSI |+| 42 | PB6 | bidirectional | 5 V tolerant general-purpose I/O port, supports I2C1_SCL, remappable to TIM4_CH1 or USART1_TX |+| 43 | PB7 | bidirectional | 5 V tolerant general-purpose I/O port, supports I2C1_SDA, remappable to TIM4_CH2 or USART1_RX |+| 44 | BOOT0 | input | Boot configuration pin, sampled at reset to select boot mode |+| 45 | PB8 | bidirectional | 5 V tolerant general-purpose I/O port, supports TIM4_CH3, remappable to I2C1_SCL or CAN_RX |+| 46 | PB9 | bidirectional | 5 V tolerant general-purpose I/O port, supports TIM4_CH4, remappable to I2C1_SDA or CAN_TX |+| 47 | VSS_3 | power_in | Ground |+| 48 | VDD_3 | power_in | Main power supply, 1.8 to 3.6 V |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | STMicroelectronics |+| Package | LQFP-48(7x7) |+| Category | Embedded Processors & Controllers |+| Pins | 48 |++## CAD (KiCad official)++- Symbol: `STM32F103CBT7`+- Footprint: `Package_QFP:LQFP-48_7x7mm_P0.5mm`+- 3D model: LQFP-48(7x7) (KiCad packages3D, STEP)+- 3D model files: `stm32f103cbt7-etched.step` / `stm32f103cbt7-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `stm32f103cbt7.step` / `stm32f103cbt7.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/8588924157480341504) (117 pp, sha256 `4741c03c5793745c`, retrieved 2026-10-01, 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/stm32f103cbt7-datasheet.pdf)
page.jsonadded+398@@ -0,0 +1,398 @@+{+ "slug": "stm32f103cbt7",+ "version": "0.1.0",+ "type": "component",+ "description": "STMicroelectronics Microcontrollers (MCU/MPU/SOC), LQFP-48(7x7). Pinout checked against ST's open pin data, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "embedded processors & controllers",+ "stm32f103cbt7",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "stm32f103cbt7.kicad_sym",+ "stm32f103cbt7.kicad_mod",+ "stm32f103cbt7.glb",+ "stm32f103cbt7.step",+ "stm32f103cbt7.lbr",+ "docs/hero.png",+ "docs/stm32f103cbt7-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html"+ ],+ "component": {+ "mpn": "STM32F103CBT7",+ "manufacturer": "STMicroelectronics",+ "package": "LQFP-48(7x7)",+ "pin_count": 48,+ "category": "Embedded Processors & Controllers",+ "subcategory": "Microcontrollers (MCU/MPU/SOC)",+ "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588924157480341504",+ "parts": {+ "symbol": "stm32f103cbt7.kicad_sym",+ "footprint": "stm32f103cbt7.kicad_mod",+ "model_3d": "stm32f103cbt7-etched.glb",+ "model_3d_plain": "stm32f103cbt7.glb",+ "model_3d_step": "stm32f103cbt7-etched.step",+ "model_3d_step_plain": "stm32f103cbt7.step",+ "lbr": "stm32f103cbt7.lbr"+ },+ "distributor_links": {+ "lcsc": "C1338636",+ "digikey": "497-11518-ND",+ "mouser": "511-STM32F103CBT7"+ },+ "distributor_check": {+ "checked_at": "2026-10-01T15:50:18Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "497-11518-ND",+ "status": "found"+ },+ "mouser": {+ "pn": "511-STM32F103CBT7",+ "status": "found"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "VBAT",+ "type": "power_in",+ "description": "Backup supply for RTC and backup registers, 1.8 to 3.6 V"+ },+ {+ "number": "2",+ "name": "PC13-TAMPER-RTC",+ "type": "bidirectional",+ "description": "General-purpose I/O port on backup domain or tamper alarm input"+ },+ {+ "number": "3",+ "name": "PC14-OSC32_IN",+ "type": "bidirectional",+ "description": "32 kHz oscillator input on backup domain"+ },+ {+ "number": "4",+ "name": "PC15-OSC32_OUT",+ "type": "bidirectional",+ "description": "32 kHz oscillator output on backup domain"+ },+ {+ "number": "5",+ "name": "OSC_IN",+ "type": "input",+ "description": "Main oscillator input for external high-speed crystal, 4 to 16 MHz"+ },+ {+ "number": "6",+ "name": "OSC_OUT",+ "type": "output",+ "description": "Main oscillator output for external high-speed crystal"+ },+ {+ "number": "7",+ "name": "NRST",+ "type": "bidirectional",+ "description": "External reset pin with internal pull-up, active low"+ },+ {+ "number": "8",+ "name": "VSSA",+ "type": "power_in",+ "description": "Analog ground"+ },+ {+ "number": "9",+ "name": "VDDA",+ "type": "power_in",+ "description": "Analog power supply, 1.8 to 3.6 V"+ },+ {+ "number": "10",+ "name": "PA0-WKUP",+ "type": "bidirectional",+ "description": "General-purpose I/O port with external wakeup capability"+ },+ {+ "number": "11",+ "name": "PA1",+ "type": "bidirectional",+ "description": "General-purpose I/O port, supports USART2_RTS, ADC12_IN1, TIM2_CH2"+ },+ {+ "number": "12",+ "name": "PA2",+ "type": "bidirectional",+ "description": "General-purpose I/O port, supports USART2_TX, ADC12_IN2, TIM2_CH3"+ },+ {+ "number": "13",+ "name": "PA3",+ "type": "bidirectional",+ "description": "General-purpose I/O port, supports USART2_RX, ADC12_IN3, TIM2_CH4"+ },+ {+ "number": "14",+ "name": "PA4",+ "type": "bidirectional",+ "description": "General-purpose I/O port, supports SPI1_NSS, USART2_CK, ADC12_IN4"+ },+ {+ "number": "15",+ "name": "PA5",+ "type": "bidirectional",+ "description": "General-purpose I/O port, supports SPI1_SCK, ADC12_IN5"+ },+ {+ "number": "16",+ "name": "PA6",+ "type": "bidirectional",+ "description": "General-purpose I/O port, supports SPI1_MISO, ADC12_IN6, TIM3_CH1"+ },+ {+ "number": "17",+ "name": "PA7",+ "type": "bidirectional",+ "description": "General-purpose I/O port, supports SPI1_MOSI, ADC12_IN7, TIM3_CH2"+ },+ {+ "number": "18",+ "name": "PB0",+ "type": "bidirectional",+ "description": "General-purpose I/O port, supports ADC12_IN8, TIM3_CH3"+ },+ {+ "number": "19",+ "name": "PB1",+ "type": "bidirectional",+ "description": "General-purpose I/O port, supports ADC12_IN9, TIM3_CH4"+ },+ {+ "number": "20",+ "name": "PB2",+ "type": "bidirectional",+ "description": "General-purpose I/O port, BOOT1 configuration pin"+ },+ {+ "number": "21",+ "name": "PB10",+ "type": "bidirectional",+ "description": "5 V tolerant general-purpose I/O port, supports I2C2_SCL, USART3_TX"+ },+ {+ "number": "22",+ "name": "PB11",+ "type": "bidirectional",+ "description": "5 V tolerant general-purpose I/O port, supports I2C2_SDA, USART3_RX"+ },+ {+ "number": "23",+ "name": "VSS_1",+ "type": "power_in",+ "description": "Ground"+ },+ {+ "number": "24",+ "name": "VDD_1",+ "type": "power_in",+ "description": "Main power supply, 1.8 to 3.6 V"+ },+ {+ "number": "25",+ "name": "PB12",+ "type": "bidirectional",+ "description": "5 V tolerant general-purpose I/O port, supports SPI2_NSS, I2C2_SMBAI, USART3_CK"+ },+ {+ "number": "26",+ "name": "PB13",+ "type": "bidirectional",+ "description": "5 V tolerant general-purpose I/O port, supports SPI2_SCK, USART3_CTS"+ },+ {+ "number": "27",+ "name": "PB14",+ "type": "bidirectional",+ "description": "5 V tolerant general-purpose I/O port, supports SPI2_MISO, USART3_RTS"+ },+ {+ "number": "28",+ "name": "PB15",+ "type": "bidirectional",+ "description": "5 V tolerant general-purpose I/O port, supports SPI2_MOSI"+ },+ {+ "number": "29",+ "name": "PA8",+ "type": "bidirectional",+ "description": "5 V tolerant general-purpose I/O port, supports USART1_CK, TIM1_CH1, MCO"+ },+ {+ "number": "30",+ "name": "PA9",+ "type": "bidirectional",+ "description": "5 V tolerant general-purpose I/O port, supports USART1_TX, TIM1_CH2"+ },+ {+ "number": "31",+ "name": "PA10",+ "type": "bidirectional",+ "description": "5 V tolerant general-purpose I/O port, supports USART1_RX, TIM1_CH3"+ },+ {+ "number": "32",+ "name": "PA11",+ "type": "bidirectional",+ "description": "5 V tolerant general-purpose I/O port, supports USART1_CTS, CAN_RX, USB_DM, TIM1_CH4"+ },+ {+ "number": "33",+ "name": "PA12",+ "type": "bidirectional",+ "description": "5 V tolerant general-purpose I/O port, supports USART1_RTS, CAN_TX, USB_DP, TIM1_ETR"+ },+ {+ "number": "34",+ "name": "PA13",+ "type": "bidirectional",+ "description": "5 V tolerant general-purpose I/O port or JTMS/SWDIO debug port"+ },+ {+ "number": "35",+ "name": "VSS_2",+ "type": "power_in",+ "description": "Ground"+ },+ {+ "number": "36",+ "name": "VDD_2",+ "type": "power_in",+ "description": "Main power supply, 1.8 to 3.6 V"+ },+ {+ "number": "37",+ "name": "PA14",+ "type": "bidirectional",+ "description": "5 V tolerant general-purpose I/O port or JTCK/SWCLK debug port"+ },+ {+ "number": "38",+ "name": "PA15",+ "type": "bidirectional",+ "description": "5 V tolerant general-purpose I/O port or JTDI debug port, remappable to TIM2_CH1_ETR or SPI1_NSS"+ },+ {+ "number": "39",+ "name": "PB3",+ "type": "bidirectional",+ "description": "5 V tolerant general-purpose I/O port or JTDO/TRACESWO debug port, remappable to TIM2_CH2 or SPI1_SCK"+ },+ {+ "number": "40",+ "name": "PB4",+ "type": "bidirectional",+ "description": "5 V tolerant general-purpose I/O port or JNTRST debug port, remappable to TIM3_CH1 or SPI1_MISO"+ },+ {+ "number": "41",+ "name": "PB5",+ "type": "bidirectional",+ "description": "General-purpose I/O port, supports I2C1_SMBA, remappable to TIM3_CH2 or SPI1_MOSI"+ },+ {+ "number": "42",+ "name": "PB6",+ "type": "bidirectional",+ "description": "5 V tolerant general-purpose I/O port, supports I2C1_SCL, remappable to TIM4_CH1 or USART1_TX"+ },+ {+ "number": "43",+ "name": "PB7",+ "type": "bidirectional",+ "description": "5 V tolerant general-purpose I/O port, supports I2C1_SDA, remappable to TIM4_CH2 or USART1_RX"+ },+ {+ "number": "44",+ "name": "BOOT0",+ "type": "input",+ "description": "Boot configuration pin, sampled at reset to select boot mode"+ },+ {+ "number": "45",+ "name": "PB8",+ "type": "bidirectional",+ "description": "5 V tolerant general-purpose I/O port, supports TIM4_CH3, remappable to I2C1_SCL or CAN_RX"+ },+ {+ "number": "46",+ "name": "PB9",+ "type": "bidirectional",+ "description": "5 V tolerant general-purpose I/O port, supports TIM4_CH4, remappable to I2C1_SDA or CAN_TX"+ },+ {+ "number": "47",+ "name": "VSS_3",+ "type": "power_in",+ "description": "Ground"+ },+ {+ "number": "48",+ "name": "VDD_3",+ "type": "power_in",+ "description": "Main power supply, 1.8 to 3.6 V"+ }+ ],+ "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: Oscillator pins 5 and 6 marked as OSC_IN/OSC_OUT can be remapped to PD0/PD1 functionality; default f; PC13-PC15 pins (2-4) are supplied through power switch with limited current (3 mA max); speed should; PA13, PA14, PA15, PB3, PB4 (34, 37-40) are shared with JTAG/SWD debug interface pins; debug port fun",+ "20/48 pins cited to the wrong page (name found elsewhere): ['29:PA8@p28', '30:PA9@p28', '31:PA10@p28', '32:PA11@p28']"+ ],+ "pages_sent": 66,+ "cost_usd": 0.4837,+ "at": "2026-10-01T15:49:56"+ },+ "datasheet": {+ "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588924157480341504",+ "pages": 117,+ "sha256": "4741c03c5793745c",+ "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"+ }+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}