component
STM32F103CBT7TR
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 @@+# STM32F103CBT7TR++**STMicroelectronics** · Microcontrollers (MCU/MPU/SOC) · LQFP-48(7x7)++STM32F103CBT7TR 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 | Battery backup supply voltage 2.0 to 3.6 V for RTC and backup register domain. |+| 2 | PC13 | bidirectional | GPIO PC13 with power-switch controlled supply (max 3 mA), TAMPER-RTC alternate function. |+| 3 | PC14 | bidirectional | GPIO PC14 with power-switch controlled supply (max 3 mA), OSC32_IN 32.768 kHz oscillator input alternate function. |+| 4 | PC15 | bidirectional | GPIO PC15 with power-switch controlled supply (max 3 mA), OSC32_OUT 32.768 kHz oscillator output alternate function. |+| 5 | OSC_IN | input | High-speed external oscillator 4 to 16 MHz input for main clock and PLL source. |+| 6 | OSC_OUT | output | High-speed external oscillator 4 to 16 MHz output feedback from crystal, remappable to PD1. |+| 7 | NRST | input | Active-low reset input with internal pull-up resistor and debounce filter; remappable with software. |+| 8 | VSSA | power_in | Ground reference for analog circuits including ADC, temperature sensor, and VREF supply. |+| 9 | VDDA | power_in | Analog power supply 2.0 to 3.6 V for ADC and internal voltage reference. |+| 10 | PA0 | bidirectional | GPIO PA0 with wake-up input, USART2_CTS, ADC12_IN0, TIM2_CH1_ETR alternate functions. |+| 11 | PA1 | bidirectional | GPIO PA1 with USART2_RTS, ADC12_IN1, TIM2_CH2 alternate functions. |+| 12 | PA2 | bidirectional | GPIO PA2 with USART2_TX, ADC12_IN2, TIM2_CH3 alternate functions. |+| 13 | PA3 | bidirectional | GPIO PA3 with USART2_RX, ADC12_IN3, TIM2_CH4 alternate functions. |+| 14 | PA4 | bidirectional | GPIO PA4 with SPI1_NSS, USART2_CK, ADC12_IN4 alternate functions. |+| 15 | PA5 | bidirectional | GPIO PA5 with SPI1_SCK and ADC12_IN5 alternate functions. |+| 16 | PA6 | bidirectional | GPIO PA6 with SPI1_MISO, ADC12_IN6, TIM3_CH1 alternate functions; remappable to TIM1_BKIN. |+| 17 | PA7 | bidirectional | GPIO PA7 with SPI1_MOSI, ADC12_IN7, TIM3_CH2 alternate functions; remappable to TIM1_CH1N. |+| 18 | PB0 | bidirectional | GPIO PB0 with ADC12_IN8, TIM3_CH3 alternate functions; remappable to TIM1_CH2N. |+| 19 | PB1 | bidirectional | GPIO PB1 with ADC12_IN9, TIM3_CH4 alternate functions; remappable to TIM1_CH3N. |+| 20 | PB2 | bidirectional | GPIO PB2 with BOOT1 strapping function to select boot from flash or system memory at power-up. |+| 21 | PB10 | bidirectional | GPIO PB10 with I2C2_SCL, USART3_TX, TIM2_CH3 alternate functions. |+| 22 | PB11 | bidirectional | GPIO PB11 with I2C2_SDA, USART3_RX, TIM2_CH4 alternate functions. |+| 23 | VSS_1 | power_in | Ground reference for digital circuits and I/O supply decoupling. |+| 24 | VDD_1 | power_in | Digital power supply 2.0 to 3.6 V for core logic and I/O buffers. |+| 25 | PB12 | bidirectional | GPIO PB12 with SPI2_NSS, I2C2_SMBal, USART3_CK, TIM1_BKIN alternate functions. |+| 26 | PB13 | bidirectional | GPIO PB13 with SPI2_SCK, USART3_CTS, TIM1_CH1N alternate functions. |+| 27 | PB14 | bidirectional | GPIO PB14 with SPI2_MISO, USART3_RTS, TIM1_CH2N alternate functions. |+| 28 | PB15 | bidirectional | GPIO PB15 with SPI2_MOSI, TIM1_CH3N alternate functions. |+| 29 | PA8 | bidirectional | GPIO PA8 with USART1_CK, TIM1_CH1, MCO alternate functions. |+| 30 | PA9 | bidirectional | GPIO PA9 with USART1_TX, TIM1_CH2 alternate functions. |+| 31 | PA10 | bidirectional | GPIO PA10 with USART1_RX, TIM1_CH3 alternate functions. |+| 32 | PA11 | bidirectional | GPIO PA11 with USART1_CTS, CAN_RX, USB_DM, TIM1_CH4 alternate functions. |+| 33 | PA12 | bidirectional | GPIO PA12 with USART1_RTS, CAN_TX, USB_DP, TIM1_ETR alternate functions. |+| 34 | PA13 | bidirectional | JTMS/SWDIO debug interface serial wire data I/O pin; remappable to GPIO PA13. |+| 35 | VSS_2 | power_in | Ground reference for digital circuits and I/O supply decoupling. |+| 36 | VDD_2 | power_in | Digital power supply 2.0 to 3.6 V for core logic and I/O buffers. |+| 37 | PA14 | bidirectional | JTCK/SWCLK debug interface serial wire clock pin; remappable to GPIO PA14. |+| 38 | PA15 | bidirectional | GPIO PA15 with JTDI, TIM2_CH1_ETR, SPI1_NSS alternate functions. |+| 39 | PB3 | bidirectional | GPIO PB3 with JTDO, TIM2_CH2, SPI1_SCK alternate functions; remappable to TRACESWO. |+| 40 | PB4 | bidirectional | GPIO PB4 with JNTRST, TIM3_CH1, SPI1_MISO alternate functions. |+| 41 | PB5 | bidirectional | GPIO PB5 with I2C1_SMBal, TIM3_CH2, SPI1_MOSI alternate functions. |+| 42 | PB6 | bidirectional | GPIO PB6 with I2C1_SCL, TIM4_CH1, USART1_TX alternate functions; 5V-tolerant for USART1_TX. |+| 43 | PB7 | bidirectional | GPIO PB7 with I2C1_SDA, TIM4_CH2, USART1_RX alternate functions; 5V-tolerant for USART1_RX. |+| 44 | BOOT0 | input | Boot configuration input pin: 0 selects boot from flash, 1 selects boot from system memory. |+| 45 | PB8 | bidirectional | GPIO PB8 with TIM4_CH3, I2C1_SCL, CAN_RX alternate functions. |+| 46 | PB9 | bidirectional | GPIO PB9 with TIM4_CH4, I2C1_SDA, CAN_TX alternate functions. |+| 47 | VSS_3 | power_in | Ground reference for digital circuits and I/O supply decoupling. |+| 48 | VDD_3 | power_in | Digital power supply 2.0 to 3.6 V for core logic and I/O buffers. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | STMicroelectronics |+| Package | LQFP-48(7x7) |+| Category | Embedded Processors & Controllers |+| Pins | 48 |++## CAD (KiCad official)++- Symbol: `STM32F103CBT7TR`+- Footprint: `Package_QFP:LQFP-48_7x7mm_P0.5mm`+- 3D model: LQFP-48(7x7) (KiCad packages3D, STEP)+- 3D model files: `stm32f103cbt7tr-etched.step` / `stm32f103cbt7tr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `stm32f103cbt7tr.step` / `stm32f103cbt7tr.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/8588943058578100224) (117 pp, sha256 `e3b559b4227b1427`, 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/stm32f103cbt7tr-datasheet.pdf)
page.jsonadded+400@@ -0,0 +1,400 @@+{+ "slug": "stm32f103cbt7tr",+ "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",+ "stm32f103cbt7tr",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "stm32f103cbt7tr.kicad_sym",+ "stm32f103cbt7tr.kicad_mod",+ "stm32f103cbt7tr.glb",+ "stm32f103cbt7tr.step",+ "stm32f103cbt7tr.lbr",+ "docs/hero.png",+ "docs/stm32f103cbt7tr-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html",+ "stm32f103cbt7tr-hero.glb",+ "stm32f103cbt7tr-hero.overlay.json"+ ],+ "component": {+ "mpn": "STM32F103CBT7TR",+ "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/8588943058578100224",+ "parts": {+ "symbol": "stm32f103cbt7tr.kicad_sym",+ "footprint": "stm32f103cbt7tr.kicad_mod",+ "model_3d": "stm32f103cbt7tr-hero.glb",+ "model_3d_plain": "stm32f103cbt7tr.glb",+ "model_3d_step": "stm32f103cbt7tr-etched.step",+ "model_3d_step_plain": "stm32f103cbt7tr.step",+ "lbr": "stm32f103cbt7tr.lbr"+ },+ "distributor_links": {+ "lcsc": 2055301,+ "digikey": "STM32F103CBT7TR-ND",+ "mouser": "511-STM32F103CBT7TR"+ },+ "distributor_check": {+ "checked_at": "2026-10-06T17:08:31Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "STM32F103CBT7TR-ND",+ "status": "found",+ "lifecycle": "Active"+ },+ "mouser": {+ "pn": "511-STM32F103CBT7TR",+ "status": "found"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "VBAT",+ "type": "power_in",+ "description": "Battery backup supply voltage 2.0 to 3.6 V for RTC and backup register domain."+ },+ {+ "number": "2",+ "name": "PC13",+ "type": "bidirectional",+ "description": "GPIO PC13 with power-switch controlled supply (max 3 mA), TAMPER-RTC alternate function."+ },+ {+ "number": "3",+ "name": "PC14",+ "type": "bidirectional",+ "description": "GPIO PC14 with power-switch controlled supply (max 3 mA), OSC32_IN 32.768 kHz oscillator input alternate function."+ },+ {+ "number": "4",+ "name": "PC15",+ "type": "bidirectional",+ "description": "GPIO PC15 with power-switch controlled supply (max 3 mA), OSC32_OUT 32.768 kHz oscillator output alternate function."+ },+ {+ "number": "5",+ "name": "OSC_IN",+ "type": "input",+ "description": "High-speed external oscillator 4 to 16 MHz input for main clock and PLL source."+ },+ {+ "number": "6",+ "name": "OSC_OUT",+ "type": "output",+ "description": "High-speed external oscillator 4 to 16 MHz output feedback from crystal, remappable to PD1."+ },+ {+ "number": "7",+ "name": "NRST",+ "type": "input",+ "description": "Active-low reset input with internal pull-up resistor and debounce filter; remappable with software."+ },+ {+ "number": "8",+ "name": "VSSA",+ "type": "power_in",+ "description": "Ground reference for analog circuits including ADC, temperature sensor, and VREF supply."+ },+ {+ "number": "9",+ "name": "VDDA",+ "type": "power_in",+ "description": "Analog power supply 2.0 to 3.6 V for ADC and internal voltage reference."+ },+ {+ "number": "10",+ "name": "PA0",+ "type": "bidirectional",+ "description": "GPIO PA0 with wake-up input, USART2_CTS, ADC12_IN0, TIM2_CH1_ETR alternate functions."+ },+ {+ "number": "11",+ "name": "PA1",+ "type": "bidirectional",+ "description": "GPIO PA1 with USART2_RTS, ADC12_IN1, TIM2_CH2 alternate functions."+ },+ {+ "number": "12",+ "name": "PA2",+ "type": "bidirectional",+ "description": "GPIO PA2 with USART2_TX, ADC12_IN2, TIM2_CH3 alternate functions."+ },+ {+ "number": "13",+ "name": "PA3",+ "type": "bidirectional",+ "description": "GPIO PA3 with USART2_RX, ADC12_IN3, TIM2_CH4 alternate functions."+ },+ {+ "number": "14",+ "name": "PA4",+ "type": "bidirectional",+ "description": "GPIO PA4 with SPI1_NSS, USART2_CK, ADC12_IN4 alternate functions."+ },+ {+ "number": "15",+ "name": "PA5",+ "type": "bidirectional",+ "description": "GPIO PA5 with SPI1_SCK and ADC12_IN5 alternate functions."+ },+ {+ "number": "16",+ "name": "PA6",+ "type": "bidirectional",+ "description": "GPIO PA6 with SPI1_MISO, ADC12_IN6, TIM3_CH1 alternate functions; remappable to TIM1_BKIN."+ },+ {+ "number": "17",+ "name": "PA7",+ "type": "bidirectional",+ "description": "GPIO PA7 with SPI1_MOSI, ADC12_IN7, TIM3_CH2 alternate functions; remappable to TIM1_CH1N."+ },+ {+ "number": "18",+ "name": "PB0",+ "type": "bidirectional",+ "description": "GPIO PB0 with ADC12_IN8, TIM3_CH3 alternate functions; remappable to TIM1_CH2N."+ },+ {+ "number": "19",+ "name": "PB1",+ "type": "bidirectional",+ "description": "GPIO PB1 with ADC12_IN9, TIM3_CH4 alternate functions; remappable to TIM1_CH3N."+ },+ {+ "number": "20",+ "name": "PB2",+ "type": "bidirectional",+ "description": "GPIO PB2 with BOOT1 strapping function to select boot from flash or system memory at power-up."+ },+ {+ "number": "21",+ "name": "PB10",+ "type": "bidirectional",+ "description": "GPIO PB10 with I2C2_SCL, USART3_TX, TIM2_CH3 alternate functions."+ },+ {+ "number": "22",+ "name": "PB11",+ "type": "bidirectional",+ "description": "GPIO PB11 with I2C2_SDA, USART3_RX, TIM2_CH4 alternate functions."+ },+ {+ "number": "23",+ "name": "VSS_1",+ "type": "power_in",+ "description": "Ground reference for digital circuits and I/O supply decoupling."+ },+ {+ "number": "24",+ "name": "VDD_1",+ "type": "power_in",+ "description": "Digital power supply 2.0 to 3.6 V for core logic and I/O buffers."+ },+ {+ "number": "25",+ "name": "PB12",+ "type": "bidirectional",+ "description": "GPIO PB12 with SPI2_NSS, I2C2_SMBal, USART3_CK, TIM1_BKIN alternate functions."+ },+ {+ "number": "26",+ "name": "PB13",+ "type": "bidirectional",+ "description": "GPIO PB13 with SPI2_SCK, USART3_CTS, TIM1_CH1N alternate functions."+ },+ {+ "number": "27",+ "name": "PB14",+ "type": "bidirectional",+ "description": "GPIO PB14 with SPI2_MISO, USART3_RTS, TIM1_CH2N alternate functions."+ },+ {+ "number": "28",+ "name": "PB15",+ "type": "bidirectional",+ "description": "GPIO PB15 with SPI2_MOSI, TIM1_CH3N alternate functions."+ },+ {+ "number": "29",+ "name": "PA8",+ "type": "bidirectional",+ "description": "GPIO PA8 with USART1_CK, TIM1_CH1, MCO alternate functions."+ },+ {+ "number": "30",+ "name": "PA9",+ "type": "bidirectional",+ "description": "GPIO PA9 with USART1_TX, TIM1_CH2 alternate functions."+ },+ {+ "number": "31",+ "name": "PA10",+ "type": "bidirectional",+ "description": "GPIO PA10 with USART1_RX, TIM1_CH3 alternate functions."+ },+ {+ "number": "32",+ "name": "PA11",+ "type": "bidirectional",+ "description": "GPIO PA11 with USART1_CTS, CAN_RX, USB_DM, TIM1_CH4 alternate functions."+ },+ {+ "number": "33",+ "name": "PA12",+ "type": "bidirectional",+ "description": "GPIO PA12 with USART1_RTS, CAN_TX, USB_DP, TIM1_ETR alternate functions."+ },+ {+ "number": "34",+ "name": "PA13",+ "type": "bidirectional",+ "description": "JTMS/SWDIO debug interface serial wire data I/O pin; remappable to GPIO PA13."+ },+ {+ "number": "35",+ "name": "VSS_2",+ "type": "power_in",+ "description": "Ground reference for digital circuits and I/O supply decoupling."+ },+ {+ "number": "36",+ "name": "VDD_2",+ "type": "power_in",+ "description": "Digital power supply 2.0 to 3.6 V for core logic and I/O buffers."+ },+ {+ "number": "37",+ "name": "PA14",+ "type": "bidirectional",+ "description": "JTCK/SWCLK debug interface serial wire clock pin; remappable to GPIO PA14."+ },+ {+ "number": "38",+ "name": "PA15",+ "type": "bidirectional",+ "description": "GPIO PA15 with JTDI, TIM2_CH1_ETR, SPI1_NSS alternate functions."+ },+ {+ "number": "39",+ "name": "PB3",+ "type": "bidirectional",+ "description": "GPIO PB3 with JTDO, TIM2_CH2, SPI1_SCK alternate functions; remappable to TRACESWO."+ },+ {+ "number": "40",+ "name": "PB4",+ "type": "bidirectional",+ "description": "GPIO PB4 with JNTRST, TIM3_CH1, SPI1_MISO alternate functions."+ },+ {+ "number": "41",+ "name": "PB5",+ "type": "bidirectional",+ "description": "GPIO PB5 with I2C1_SMBal, TIM3_CH2, SPI1_MOSI alternate functions."+ },+ {+ "number": "42",+ "name": "PB6",+ "type": "bidirectional",+ "description": "GPIO PB6 with I2C1_SCL, TIM4_CH1, USART1_TX alternate functions; 5V-tolerant for USART1_TX."+ },+ {+ "number": "43",+ "name": "PB7",+ "type": "bidirectional",+ "description": "GPIO PB7 with I2C1_SDA, TIM4_CH2, USART1_RX alternate functions; 5V-tolerant for USART1_RX."+ },+ {+ "number": "44",+ "name": "BOOT0",+ "type": "input",+ "description": "Boot configuration input pin: 0 selects boot from flash, 1 selects boot from system memory."+ },+ {+ "number": "45",+ "name": "PB8",+ "type": "bidirectional",+ "description": "GPIO PB8 with TIM4_CH3, I2C1_SCL, CAN_RX alternate functions."+ },+ {+ "number": "46",+ "name": "PB9",+ "type": "bidirectional",+ "description": "GPIO PB9 with TIM4_CH4, I2C1_SDA, CAN_TX alternate functions."+ },+ {+ "number": "47",+ "name": "VSS_3",+ "type": "power_in",+ "description": "Ground reference for digital circuits and I/O supply decoupling."+ },+ {+ "number": "48",+ "name": "VDD_3",+ "type": "power_in",+ "description": "Digital power supply 2.0 to 3.6 V for core logic and I/O buffers."+ }+ ],+ "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 supply current limited to 3 mA max through power switch (see page 33 note 5); Debug pins PA13 and PA14 are JTAG interface after reset and require remapping to GPIO in firmware (s; BOOT0 strapping must be set during power-up; pulling low selects boot from flash, pulling high selec"+ ],+ "pages_sent": 66,+ "cost_usd": 0.4921,+ "at": "2026-10-06T17:08:09"+ },+ "datasheet": {+ "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588943058578100224",+ "pages": 117,+ "sha256": "e3b559b4227b1427",+ "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]"+ }+}