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STM32F103TBU7
Public Made by Adomby adom
STMicroelectronics Microcontrollers (MCU/MPU/SOC), UQFN-36-EP(6x6). Pinout checked against ST's open pin data, KiCad symbol/footprint/3D.
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README.mdadded+73@@ -0,0 +1,73 @@+# STM32F103TBU7++**STMicroelectronics** · Microcontrollers (MCU/MPU/SOC) · UQFN-36-EP(6x6)++STM32F103TBU7 from STMicroelectronics, in a UQFN-36-EP(6x6). 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 | VDD_3 | power_in | Digital supply pin for the I/O ring and core; the application supply and I/Os operate from 2.0 to 3.6 V. |+| 2 | OSC_IN | input | High-speed external oscillator input (4-16 MHz crystal) that is the default function after reset; PD0 can be selected by software remap, and in output mode PD0 is limited to 50 MHz. |+| 3 | OSC_OUT | output | High-speed external oscillator output (4-16 MHz crystal) that is the default function after reset; PD1 can be selected by software remap, and in output mode PD1 is limited to 50 MHz. |+| 4 | NRST | bidirectional | Reset pin; its electrical characteristics are specified in the NRST pin characteristics section (5.3.14). |+| 5 | VSSA | power_in | Analog ground reference for the ADC and analog circuitry; all voltages are referenced to VSS. |+| 6 | VDDA | power_in | Analog supply for the ADC and temperature sensor; the temperature sensor conversion range is 2 V < VDDA < 3.6 V. |+| 7 | PA0-WKUP | bidirectional | GPIO PA0 (not marked 5 V tolerant) with WKUP wake-up, USART2_CTS, ADC12_IN0 and TIM2_CH1_ETR alternate functions. |+| 8 | PA1 | bidirectional | GPIO PA1 (not marked 5 V tolerant) with USART2_RTS, ADC12_IN1 and TIM2_CH2 alternate functions. |+| 9 | PA2 | bidirectional | GPIO PA2 (not marked 5 V tolerant) with USART2_TX, ADC12_IN2 and TIM2_CH3 alternate functions. |+| 10 | PA3 | bidirectional | GPIO PA3 (not marked 5 V tolerant) with USART2_RX, ADC12_IN3 and TIM2_CH4 alternate functions. |+| 11 | PA4 | bidirectional | GPIO PA4 (not marked 5 V tolerant) with SPI1_NSS, USART2_CK and ADC12_IN4 alternate functions. |+| 12 | PA5 | bidirectional | GPIO PA5 (not marked 5 V tolerant) with SPI1_SCK and ADC12_IN5 alternate functions. |+| 13 | PA6 | bidirectional | GPIO PA6 (not marked 5 V tolerant) with SPI1_MISO, ADC12_IN6, TIM3_CH1 and remapped TIM1_BKIN alternate functions. |+| 14 | PA7 | bidirectional | GPIO PA7 (not marked 5 V tolerant) with SPI1_MOSI, ADC12_IN7, TIM3_CH2 and remapped TIM1_CH1N alternate functions. |+| 15 | PB0 | bidirectional | GPIO PB0 (not marked 5 V tolerant) with ADC12_IN8, TIM3_CH3 and remapped TIM1_CH2N alternate functions. |+| 16 | PB1 | bidirectional | GPIO PB1 (not marked 5 V tolerant) with ADC12_IN9, TIM3_CH4 and remapped TIM1_CH3N alternate functions. |+| 17 | PB2/BOOT1 | bidirectional | 5 V tolerant GPIO PB2 that also serves as the BOOT1 boot-mode configuration pin. |+| 18 | VSS_1 | power_in | Digital ground pin for the I/O ring and core. |+| 19 | VDD_1 | power_in | Digital supply pin for the I/O ring and core; the application supply and I/Os operate from 2.0 to 3.6 V. |+| 20 | PA8 | bidirectional | 5 V tolerant GPIO PA8 with USART1_CK, TIM1_CH1 and MCO alternate functions. |+| 21 | PA9 | bidirectional | 5 V tolerant GPIO PA9 with USART1_TX and TIM1_CH2 alternate functions. |+| 22 | PA10 | bidirectional | 5 V tolerant GPIO PA10 with USART1_RX and TIM1_CH3 alternate functions. |+| 23 | PA11 | bidirectional | 5 V tolerant GPIO PA11 with USART1_CTS, CANRX, USBDM and TIM1_CH4 alternate functions. |+| 24 | PA12 | bidirectional | 5 V tolerant GPIO PA12 with USART1_RTS, CANTX, USBDP and TIM1_ETR alternate functions. |+| 25 | PA13 | bidirectional | 5 V tolerant GPIO PA13; its default function is JTMS/SWDIO (serial wire debug data). |+| 26 | VSS_2 | power_in | Digital ground pin for the I/O ring and core. |+| 27 | VDD_2 | power_in | Digital supply pin for the I/O ring and core; the application supply and I/Os operate from 2.0 to 3.6 V. |+| 28 | PA14 | bidirectional | 5 V tolerant GPIO PA14; its default function is JTCK/SWCLK (serial wire debug clock). |+| 29 | PA15 | bidirectional | 5 V tolerant GPIO PA15; its default function is JTDI, with TIM2_CH1_ETR and SPI1_NSS alternate functions. |+| 30 | PB3 | bidirectional | 5 V tolerant GPIO PB3; its default function is JTDO, with TIM2_CH2, TRACESWO and remapped SPI1_SCK alternate functions. |+| 31 | PB4 | bidirectional | 5 V tolerant GPIO PB4; its default function is JNTRST, with TIM3_CH1 and remapped SPI1_MISO alternate functions. |+| 32 | PB5 | bidirectional | GPIO PB5 (not marked 5 V tolerant) with I2C1_SMBAL, TIM3_CH2 and remapped SPI1_MOSI alternate functions. |+| 33 | PB6 | bidirectional | 5 V tolerant GPIO PB6 with I2C1_SCL, TIM4_CH1 and USART1_TX alternate functions. |+| 34 | PB7 | bidirectional | 5 V tolerant GPIO PB7 with I2C1_SDA, TIM4_CH2 and USART1_RX alternate functions. |+| 35 | BOOT0 | input | Boot mode selection input (BOOT0); the boot mode behaviour is described in the Boot modes section of the datasheet. |+| 36 | VSS_3 | power_in | Digital ground pin for the I/O ring and core. |+| 37 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | STMicroelectronics |+| Package | UQFN-36-EP(6x6) |+| Category | Embedded Processors & Controllers |+| Pins | 37 |++## CAD (KiCad official)++- Symbol: `STM32F103TBU7`+- Footprint: `Package_DFN_QFN:QFN-36-1EP_6x6mm_P0.5mm_EP3.7x3.7mm`+- 3D model: UQFN-36-EP(6x6) (KiCad packages3D, STEP)+- 3D model files: `stm32f103tbu7-etched.step` / `stm32f103tbu7-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `stm32f103tbu7.step` / `stm32f103tbu7.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/8588893528851664896) (117 pp, sha256 `4741c03c5793745c`, retrieved 2026-10-08, tier: lcsc)+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (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/stm32f103tbu7-datasheet.pdf)
page.jsonadded+375@@ -0,0 +1,375 @@+{+ "slug": "stm32f103tbu7",+ "version": "0.1.0",+ "type": "component",+ "description": "STMicroelectronics Microcontrollers (MCU/MPU/SOC), UQFN-36-EP(6x6). Pinout checked against ST's open pin data, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "embedded processors & controllers",+ "stm32f103tbu7",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "stm32f103tbu7.kicad_sym",+ "stm32f103tbu7.kicad_mod",+ "stm32f103tbu7.glb",+ "stm32f103tbu7.step",+ "stm32f103tbu7.lbr",+ "docs/hero.png",+ "docs/stm32f103tbu7-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html",+ "stm32f103tbu7-hero.glb",+ "stm32f103tbu7-hero.overlay.json"+ ],+ "component": {+ "mpn": "STM32F103TBU7",+ "manufacturer": "STMicroelectronics",+ "package": "UQFN-36-EP(6x6)",+ "pin_count": 37,+ "category": "Embedded Processors & Controllers",+ "subcategory": "Microcontrollers (MCU/MPU/SOC)",+ "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588893528851664896",+ "parts": {+ "symbol": "stm32f103tbu7.kicad_sym",+ "footprint": "stm32f103tbu7.kicad_mod",+ "model_3d": "stm32f103tbu7-hero.glb",+ "model_3d_plain": "stm32f103tbu7.glb",+ "model_3d_step": "stm32f103tbu7-etched.step",+ "model_3d_step_plain": "stm32f103tbu7.step",+ "lbr": "stm32f103tbu7.lbr"+ },+ "distributor_links": {+ "lcsc": "C1339326",+ "digikey": "497-18523-ND",+ "mouser": "511-STM32F103TBU7"+ },+ "distributor_check": {+ "checked_at": "2026-10-08T00:48:43Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "497-18523-ND",+ "status": "found",+ "lifecycle": "Active"+ },+ "mouser": {+ "pn": "511-STM32F103TBU7",+ "status": "found"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "VDD_3",+ "type": "power_in",+ "description": "Digital supply pin for the I/O ring and core; the application supply and I/Os operate from 2.0 to 3.6 V."+ },+ {+ "number": "2",+ "name": "OSC_IN",+ "type": "input",+ "description": "High-speed external oscillator input (4-16 MHz crystal) that is the default function after reset; PD0 can be selected by software remap, and in output mode PD0 is limited to 50 MHz."+ },+ {+ "number": "3",+ "name": "OSC_OUT",+ "type": "output",+ "description": "High-speed external oscillator output (4-16 MHz crystal) that is the default function after reset; PD1 can be selected by software remap, and in output mode PD1 is limited to 50 MHz."+ },+ {+ "number": "4",+ "name": "NRST",+ "type": "bidirectional",+ "description": "Reset pin; its electrical characteristics are specified in the NRST pin characteristics section (5.3.14)."+ },+ {+ "number": "5",+ "name": "VSSA",+ "type": "power_in",+ "description": "Analog ground reference for the ADC and analog circuitry; all voltages are referenced to VSS."+ },+ {+ "number": "6",+ "name": "VDDA",+ "type": "power_in",+ "description": "Analog supply for the ADC and temperature sensor; the temperature sensor conversion range is 2 V < VDDA < 3.6 V."+ },+ {+ "number": "7",+ "name": "PA0-WKUP",+ "type": "bidirectional",+ "description": "GPIO PA0 (not marked 5 V tolerant) with WKUP wake-up, USART2_CTS, ADC12_IN0 and TIM2_CH1_ETR alternate functions."+ },+ {+ "number": "8",+ "name": "PA1",+ "type": "bidirectional",+ "description": "GPIO PA1 (not marked 5 V tolerant) with USART2_RTS, ADC12_IN1 and TIM2_CH2 alternate functions."+ },+ {+ "number": "9",+ "name": "PA2",+ "type": "bidirectional",+ "description": "GPIO PA2 (not marked 5 V tolerant) with USART2_TX, ADC12_IN2 and TIM2_CH3 alternate functions."+ },+ {+ "number": "10",+ "name": "PA3",+ "type": "bidirectional",+ "description": "GPIO PA3 (not marked 5 V tolerant) with USART2_RX, ADC12_IN3 and TIM2_CH4 alternate functions."+ },+ {+ "number": "11",+ "name": "PA4",+ "type": "bidirectional",+ "description": "GPIO PA4 (not marked 5 V tolerant) with SPI1_NSS, USART2_CK and ADC12_IN4 alternate functions."+ },+ {+ "number": "12",+ "name": "PA5",+ "type": "bidirectional",+ "description": "GPIO PA5 (not marked 5 V tolerant) with SPI1_SCK and ADC12_IN5 alternate functions."+ },+ {+ "number": "13",+ "name": "PA6",+ "type": "bidirectional",+ "description": "GPIO PA6 (not marked 5 V tolerant) with SPI1_MISO, ADC12_IN6, TIM3_CH1 and remapped TIM1_BKIN alternate functions."+ },+ {+ "number": "14",+ "name": "PA7",+ "type": "bidirectional",+ "description": "GPIO PA7 (not marked 5 V tolerant) with SPI1_MOSI, ADC12_IN7, TIM3_CH2 and remapped TIM1_CH1N alternate functions."+ },+ {+ "number": "15",+ "name": "PB0",+ "type": "bidirectional",+ "description": "GPIO PB0 (not marked 5 V tolerant) with ADC12_IN8, TIM3_CH3 and remapped TIM1_CH2N alternate functions."+ },+ {+ "number": "16",+ "name": "PB1",+ "type": "bidirectional",+ "description": "GPIO PB1 (not marked 5 V tolerant) with ADC12_IN9, TIM3_CH4 and remapped TIM1_CH3N alternate functions."+ },+ {+ "number": "17",+ "name": "PB2/BOOT1",+ "type": "bidirectional",+ "description": "5 V tolerant GPIO PB2 that also serves as the BOOT1 boot-mode configuration pin."+ },+ {+ "number": "18",+ "name": "VSS_1",+ "type": "power_in",+ "description": "Digital ground pin for the I/O ring and core."+ },+ {+ "number": "19",+ "name": "VDD_1",+ "type": "power_in",+ "description": "Digital supply pin for the I/O ring and core; the application supply and I/Os operate from 2.0 to 3.6 V."+ },+ {+ "number": "20",+ "name": "PA8",+ "type": "bidirectional",+ "description": "5 V tolerant GPIO PA8 with USART1_CK, TIM1_CH1 and MCO alternate functions."+ },+ {+ "number": "21",+ "name": "PA9",+ "type": "bidirectional",+ "description": "5 V tolerant GPIO PA9 with USART1_TX and TIM1_CH2 alternate functions."+ },+ {+ "number": "22",+ "name": "PA10",+ "type": "bidirectional",+ "description": "5 V tolerant GPIO PA10 with USART1_RX and TIM1_CH3 alternate functions."+ },+ {+ "number": "23",+ "name": "PA11",+ "type": "bidirectional",+ "description": "5 V tolerant GPIO PA11 with USART1_CTS, CANRX, USBDM and TIM1_CH4 alternate functions."+ },+ {+ "number": "24",+ "name": "PA12",+ "type": "bidirectional",+ "description": "5 V tolerant GPIO PA12 with USART1_RTS, CANTX, USBDP and TIM1_ETR alternate functions."+ },+ {+ "number": "25",+ "name": "PA13",+ "type": "bidirectional",+ "description": "5 V tolerant GPIO PA13; its default function is JTMS/SWDIO (serial wire debug data)."+ },+ {+ "number": "26",+ "name": "VSS_2",+ "type": "power_in",+ "description": "Digital ground pin for the I/O ring and core."+ },+ {+ "number": "27",+ "name": "VDD_2",+ "type": "power_in",+ "description": "Digital supply pin for the I/O ring and core; the application supply and I/Os operate from 2.0 to 3.6 V."+ },+ {+ "number": "28",+ "name": "PA14",+ "type": "bidirectional",+ "description": "5 V tolerant GPIO PA14; its default function is JTCK/SWCLK (serial wire debug clock)."+ },+ {+ "number": "29",+ "name": "PA15",+ "type": "bidirectional",+ "description": "5 V tolerant GPIO PA15; its default function is JTDI, with TIM2_CH1_ETR and SPI1_NSS alternate functions."+ },+ {+ "number": "30",+ "name": "PB3",+ "type": "bidirectional",+ "description": "5 V tolerant GPIO PB3; its default function is JTDO, with TIM2_CH2, TRACESWO and remapped SPI1_SCK alternate functions."+ },+ {+ "number": "31",+ "name": "PB4",+ "type": "bidirectional",+ "description": "5 V tolerant GPIO PB4; its default function is JNTRST, with TIM3_CH1 and remapped SPI1_MISO alternate functions."+ },+ {+ "number": "32",+ "name": "PB5",+ "type": "bidirectional",+ "description": "GPIO PB5 (not marked 5 V tolerant) with I2C1_SMBAL, TIM3_CH2 and remapped SPI1_MOSI alternate functions."+ },+ {+ "number": "33",+ "name": "PB6",+ "type": "bidirectional",+ "description": "5 V tolerant GPIO PB6 with I2C1_SCL, TIM4_CH1 and USART1_TX alternate functions."+ },+ {+ "number": "34",+ "name": "PB7",+ "type": "bidirectional",+ "description": "5 V tolerant GPIO PB7 with I2C1_SDA, TIM4_CH2 and USART1_RX alternate functions."+ },+ {+ "number": "35",+ "name": "BOOT0",+ "type": "input",+ "description": "Boot mode selection input (BOOT0); the boot mode behaviour is described in the Boot modes section of the datasheet."+ },+ {+ "number": "36",+ "name": "VSS_3",+ "type": "power_in",+ "description": "Digital ground pin for the I/O ring and core."+ },+ {+ "number": "37",+ "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 naming mismatch: the hint says UQFN-36-EP(6x6), but the datasheet names this 36-pin 6x6 mm, ; No exposed-pad (EP) pin is listed: the datasheet text for VFQFPN36 does not give an exposed pad pin ; Pins 2 and 3 are OSC_IN/OSC_OUT by default after reset; PD0/PD1 are software-remap alternatives (foo",+ "exposed pad 37 added from the footprint"+ ],+ "pages_sent": 66,+ "cost_usd": 0.2788,+ "at": "2026-10-08T00:48:25"+ },+ "datasheet": {+ "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588893528851664896",+ "pages": 117,+ "sha256": "4741c03c5793745c",+ "source_tier": "lcsc"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 37,+ "described": 37,+ "cites_pages": true,+ "refuses_to_fabricate": true+ }+ },+ "viewers": {+ "symbol": "viewers/symbol.html",+ "footprint": "viewers/footprint.html"+ },+ "models_3d": [+ {+ "file": "stm32f103tbu7.step",+ "role": "plain",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 6,+ 6,+ 0.77+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "6212c4fd2463ccb7c6ae2c35f5e24c80884153fcaeaf8e86549c0e49087bc8bb",+ "checked": "2026-10-08",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ },+ {+ "file": "stm32f103tbu7-etched.step",+ "role": "eda",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 6,+ 6,+ 0.77+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "c7c4220845bc41bc34838b3899544e57c7e0da01b9bc7d9b32343275d383cdf5",+ "checked": "2026-10-08",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ }+ ]+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}