STM32F303RBT6

@@ -0,0 +1,110 @@+# STM32F303RBT6++**STMicroelectronics** · Microcontrollers (MCU/MPU/SOC) · LQFP-64(10x10)++STM32F303RBT6 from STMicroelectronics, in a LQFP-64(10x10). Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | VBAT | power_in | Backup supply pin for RTC, LSE oscillator and backup registers (1.65-3.6 V) when VDD is removed. |+| 2 | PC13 | bidirectional | General-purpose I/O (TC, 3.3 V). Backup-domain pin; supplied through the power switch, output limited to 3 mA / 2 MHz / 30 pF. Alt: TIM1_CH1N. Add'l: WKUP2, RTC_TAMP1, RTC_TS, RTC_OUT. |+| 3 | PC14/OSC32_IN | bidirectional | GPIO PC14 (TC, 3.3 V) or LSE 32.768 kHz crystal input (OSC32_IN). Backup-domain, output current limited. |+| 4 | PC15/OSC32_OUT | bidirectional | GPIO PC15 (TC, 3.3 V) or LSE 32.768 kHz crystal output (OSC32_OUT). Backup-domain, output current limited. |+| 5 | PF0/OSC_IN | bidirectional | GPIO PF0 (FTf, 5 V-tolerant, FM+ capable) or HSE 4-32 MHz crystal input (OSC_IN). Alt: TIM1_CH3N, I2C2_SDA. |+| 6 | PF1/OSC_OUT | bidirectional | GPIO PF1 (FTf, 5 V-tolerant, FM+ capable) or HSE 4-32 MHz crystal output (OSC_OUT). Alt: I2C2_SCL. |+| 7 | NRST | bidirectional | Device reset input / open-drain internal reset output, active low. Embedded weak pull-up. |+| 8 | PC0 | bidirectional | GPIO (TTa, 3.3 V tolerant, direct to ADC). Add'l: ADC12_IN6, COMP7_INM. Alt: EVENTOUT. |+| 9 | PC1 | bidirectional | GPIO (TTa). Add'l: ADC12_IN7, COMP7_INP. Alt: EVENTOUT. |+| 10 | PC2 | bidirectional | GPIO (TTa). Add'l: ADC12_IN8. Alt: COMP7_OUT, EVENTOUT. |+| 11 | PC3 | bidirectional | GPIO (TTa). Add'l: ADC12_IN9. Alt: TIM1_BKIN2, EVENTOUT. |+| 12 | VSSA/VREF- | power_in | Analog ground and negative ADC/DAC reference. On the LQFP64, VREF- is bonded to VSSA. |+| 13 | VDDA/VREF+ | power_in | Analog supply and positive ADC/DAC/OPAMP/COMP reference (2.0-3.6 V). On the LQFP64, VREF+ is internally connected to VDDA. |+| 14 | PA0 | bidirectional | GPIO (TTa). Alt: USART2_CTS, TIM2_CH1_ETR, TIM8_BKIN, TIM8_ETR, TSC_G1_IO1, COMP1_OUT, EVENTOUT. Add'l: ADC1_IN1, COMP1_INM, RTC_TAMP2, WKUP1, COMP7_INP. |+| 15 | PA1 | bidirectional | GPIO (TTa). Alt: USART2_RTS_DE, TIM2_CH2, TSC_G1_IO2, TIM15_CH1N, RTC_REFIN, EVENTOUT. Add'l: ADC1_IN2, COMP1_INP, OPAMP1_VINP, OPAMP3_VINP. |+| 16 | PA2 | bidirectional | GPIO (TTa, fast ADC channel, reduced touch sensitivity). Alt: USART2_TX, TIM2_CH3, TIM15_CH1, TSC_G1_IO3, COMP2_OUT, EVENTOUT. Add'l: ADC1_IN3, COMP2_INM, OPAMP1_VOUT. |+| 17 | PA3 | bidirectional | GPIO (TTa, fast ADC channel). Alt: USART2_RX, TIM2_CH4, TIM15_CH2, TSC_G1_IO4, EVENTOUT. Add'l: ADC1_IN4, OPAMP1_VINP, COMP2_INP, OPAMP1_VINM. |+| 18 | PF4 | bidirectional | GPIO (TTa, fast ADC channel). Alt: COMP1_OUT, EVENTOUT. Add'l: ADC1_IN5. |+| 19 | VSS | power_in | Digital ground. |+| 20 | PA4 | bidirectional | GPIO (TTa, fast ADC channel, reduced touch sensitivity). Alt: SPI1_NSS, SPI3_NSS/I2S3_WS, USART2_CK, TSC_G2_IO1, TIM3_CH2, EVENTOUT. Add'l: ADC2_IN1, DAC1_OUT1, OPAMP4_VINP, COMP1/2/3/4/5/6/7_INM. |+| 21 | PA5 | bidirectional | GPIO (TTa, fast ADC channel, reduced touch sensitivity). Alt: SPI1_SCK, TIM2_CH1_ETR, TSC_G2_IO2, EVENTOUT. Add'l: ADC2_IN2, DAC1_OUT2, OPAMP1/2/3_VINP, COMP1/2/3/4/5/6/7_INM. |+| 22 | PA6 | bidirectional | GPIO (TTa, fast ADC channel). Alt: SPI1_MISO, TIM3_CH1, TIM8_BKIN, TIM1_BKIN, TIM16_CH1, COMP1_OUT, TSC_G2_IO3, EVENTOUT. Add'l: ADC2_IN3, OPAMP2_VOUT. |+| 23 | PA7 | bidirectional | GPIO (TTa). Alt: SPI1_MOSI, TIM3_CH2, TIM17_CH1, TIM1_CH1N, TIM8_CH1N, TSC_G2_IO4, COMP2_OUT, EVENTOUT. Add'l: ADC2_IN4, COMP2_INP, OPAMP2_VINP, OPAMP1_VINP. |+| 24 | PC4 | bidirectional | GPIO (TTa, fast ADC channel). Alt: USART1_TX, EVENTOUT. Add'l: ADC2_IN5. |+| 25 | PC5 | bidirectional | GPIO (TTa). Alt: USART1_RX, TSC_G3_IO1, EVENTOUT. Add'l: ADC2_IN11, OPAMP2_VINM, OPAMP1_VINM. |+| 26 | PB0 | bidirectional | GPIO (TTa). Alt: TIM3_CH3, TIM1_CH2N, TIM8_CH2N, TSC_G3_IO2, EVENTOUT. Add'l: ADC3_IN12, COMP4_INP, OPAMP3_VINP, OPAMP2_VINP. |+| 27 | PB1 | bidirectional | GPIO (TTa, fast ADC channel, reduced touch sensitivity). Alt: TIM3_CH4, TIM1_CH3N, TIM8_CH3N, COMP4_OUT, TSC_G3_IO3, EVENTOUT. Add'l: ADC3_IN1, OPAMP3_VOUT. |+| 28 | PB2 | bidirectional | GPIO (TTa). Alt: TSC_G3_IO4, EVENTOUT. Add'l: ADC2_IN12, COMP4_INM, OPAMP3_VINM. |+| 29 | PB10 | bidirectional | GPIO (TTa). Alt: USART3_TX, TIM2_CH3, TSC_SYNC, EVENTOUT. Add'l: COMP5_INM, OPAMP4_VINM, OPAMP3_VINM. |+| 30 | PB11 | bidirectional | GPIO (TTa). Alt: USART3_RX, TIM2_CH4, TSC_G6_IO1, EVENTOUT. Add'l: COMP6_INP, OPAMP4_VINP. |+| 31 | VSS | power_in | Digital ground. |+| 32 | VDD | power_in | Digital power supply (2.0-3.6 V). |+| 33 | PB12 | bidirectional | GPIO (TTa, fast ADC channel, reduced touch sensitivity). Alt: SPI2_NSS/I2S2_WS, I2C2_SMBA, USART3_CK, TIM1_BKIN, TSC_G6_IO2, EVENTOUT. Add'l: ADC4_IN3, COMP3_INM, OPAMP4_VOUT. |+| 34 | PB13 | bidirectional | GPIO (TTa, fast ADC channel). Alt: SPI2_SCK/I2S2_CK, USART3_CTS, TIM1_CH1N, TSC_G6_IO3, EVENTOUT. Add'l: ADC3_IN5, COMP5_INP, OPAMP4_VINP, OPAMP3_VINP. |+| 35 | PB14 | bidirectional | GPIO (TTa, fast ADC channel). Alt: SPI2_MISO/I2S2ext_SD, USART3_RTS_DE, TIM1_CH2N, TIM15_CH1, TSC_G6_IO4, EVENTOUT. Add'l: COMP3_INP, ADC4_IN4, OPAMP2_VINP. |+| 36 | PB15 | bidirectional | GPIO (TTa, fast ADC channel). Alt: SPI2_MOSI/I2S2_SD, TIM1_CH3N, RTC_REFIN, TIM15_CH1N, TIM15_CH2, EVENTOUT. Add'l: ADC4_IN5, COMP6_INM. |+| 37 | PC6 | bidirectional | GPIO (FT, 5 V-tolerant). Alt: I2S2_MCK, COMP6_OUT, TIM8_CH1, TIM3_CH1, EVENTOUT. |+| 38 | PC7 | bidirectional | GPIO (FT). Alt: I2S3_MCK, TIM8_CH2, TIM3_CH2, COMP5_OUT, EVENTOUT. |+| 39 | PC8 | bidirectional | GPIO (FT). Alt: TIM8_CH3, TIM3_CH3, COMP3_OUT, EVENTOUT. |+| 40 | PC9 | bidirectional | GPIO (FT). Alt: TIM8_CH4, TIM8_BKIN2, TIM3_CH4, I2S_CKIN, EVENTOUT. |+| 41 | PA8 | bidirectional | GPIO (FT). Alt: I2C2_SMBA, I2S2_MCK, USART1_CK, TIM1_CH1, TIM4_ETR, MCO (main clock output), COMP3_OUT, EVENTOUT. |+| 42 | PA9 | bidirectional | GPIO (FTf, 5 V-tolerant, FM+ capable). Alt: I2C2_SCL, I2S3_MCK, USART1_TX, TIM1_CH2, TIM2_CH3, TIM15_BKIN, TSC_G4_IO1, COMP5_OUT, EVENTOUT. |+| 43 | PA10 | bidirectional | GPIO (FTf). Alt: I2C2_SDA, USART1_RX, TIM1_CH3, TIM2_CH4, TIM8_BKIN, TIM17_BKIN, TSC_G4_IO2, COMP6_OUT, EVENTOUT. |+| 44 | PA11 | bidirectional | GPIO (FT). Alt: USART1_CTS, USB_DM (USB 2.0 FS D-), CAN_RX, TIM1_CH1N, TIM1_CH4, TIM1_BKIN2, TIM4_CH1, COMP1_OUT, EVENTOUT. |+| 45 | PA12 | bidirectional | GPIO (FT). Alt: USART1_RTS_DE, USB_DP (USB 2.0 FS D+), CAN_TX, TIM1_CH2N, TIM1_ETR, TIM4_CH2, TIM16_CH1, COMP2_OUT, EVENTOUT. |+| 46 | PA13 | bidirectional | GPIO (FT). Default after reset: SWDIO-JTMS (SWD data / JTAG TMS). Alt: USART3_CTS, TIM4_CH3, TIM16_CH1N, TSC_G4_IO3, IR_OUT, SWDIO-JTMS, EVENTOUT. |+| 47 | VSS | power_in | Digital ground. |+| 48 | VDD | power_in | Digital power supply (2.0-3.6 V). |+| 49 | PA14 | bidirectional | GPIO (FTf). Default after reset: SWCLK-JTCK. Alt: I2C1_SDA, USART2_TX, TIM8_CH2, TIM1_BKIN, TSC_G4_IO4, SWCLK-JTCK, EVENTOUT. |+| 50 | PA15 | bidirectional | GPIO (FTf). Default after reset: JTDI. Alt: I2C1_SCL, SPI1_NSS, SPI3_NSS/I2S3_WS, JTDI, USART2_RX, TIM1_BKIN, TIM2_CH1_ETR, TIM8_CH1, EVENTOUT. |+| 51 | PC10 | bidirectional | GPIO (FT). Alt: SPI3_SCK, I2S3_CK, USART3_TX, UART4_TX, TIM8_CH1N, EVENTOUT. |+| 52 | PC11 | bidirectional | GPIO (FT). Alt: SPI3_MISO, I2S3ext_SD, USART3_RX, UART4_RX, TIM8_CH2N, EVENTOUT. |+| 53 | PC12 | bidirectional | GPIO (FT). Alt: SPI3_MOSI, I2S3_SD, USART3_CK, UART5_TX, TIM8_CH3N, EVENTOUT. |+| 54 | PD2 | bidirectional | GPIO (FT). Alt: UART5_RX, TIM3_ETR, TIM8_BKIN, EVENTOUT. |+| 55 | PB3 | bidirectional | GPIO (FT). Default after reset: JTDO-TRACESWO. Alt: SPI3_SCK, I2S3_CK, SPI1_SCK, USART2_TX, TIM2_CH2, TIM3_ETR, TIM4_ETR, TIM8_CH1N, TSC_G5_IO1, JTDO-TRACESWO, EVENTOUT. |+| 56 | PB4 | bidirectional | GPIO (FT). Default after reset: NJTRST. Alt: SPI3_MISO, I2S3ext_SD, SPI1_MISO, USART2_RX, TIM3_CH1, TIM16_CH1, TIM17_BKIN, TIM8_CH2N, TSC_G5_IO2, NJTRST, EVENTOUT. |+| 57 | PB5 | bidirectional | GPIO (FT). Alt: SPI3_MOSI, SPI1_MOSI, I2S3_SD, I2C1_SMBA, USART2_CK, TIM16_BKIN, TIM3_CH2, TIM8_CH3N, TIM17_CH1, EVENTOUT. |+| 58 | PB6 | bidirectional | GPIO (FTf, 5 V-tolerant, FM+ capable). Alt: I2C1_SCL, USART1_TX, TIM16_CH1N, TIM4_CH1, TIM8_CH1, TSC_G5_IO3, TIM8_ETR, TIM8_BKIN2, EVENTOUT. |+| 59 | PB7 | bidirectional | GPIO (FTf). Alt: I2C1_SDA, USART1_RX, TIM3_CH4, TIM4_CH2, TIM17_CH1N, TIM8_BKIN, TSC_G5_IO4, EVENTOUT. |+| 60 | BOOT0 | input | Dedicated boot memory selection input sampled at reset (dedicated 'B' I/O structure). |+| 61 | PB8 | bidirectional | GPIO (FTf). Alt: I2C1_SCL, CAN_RX, TIM16_CH1, TIM4_CH3, TIM8_CH2, TIM1_BKIN, TSC_SYNC, COMP1_OUT, EVENTOUT. |+| 62 | PB9 | bidirectional | GPIO (FTf). Alt: I2C1_SDA, CAN_TX, TIM17_CH1, TIM4_CH4, TIM8_CH3, IR_OUT, COMP2_OUT, EVENTOUT. |+| 63 | VSS | power_in | Digital ground. |+| 64 | VDD | power_in | Digital power supply (2.0-3.6 V). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | STMicroelectronics |+| Package | LQFP-64(10x10) |+| Category | MCU |+| Pins | 64 |++## Ordering variants++- `STM32F303RBT6`+- `STM32F303RBT6RCT6`+- `STM32F303RBT6CBT6`+- `STM32F303RBT6CCT6`+- `STM32F303RBT6VBT6`+- `STM32F303RBT6VCT6`+- `STM32F303RBT6ZBY6`+- `STM32F303RBT6ZCY6`++## CAD (KiCad official)++- Symbol: `STM32F303RBT6`+- Footprint: `Package_QFP:LQFP-64_10x10mm_P0.5mm`+- 3D model: LQFP-64(10x10) (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [STMicroelectronics datasheet](https://www.st.com/resource/en/datasheet/stm32f303rbt6.pdf) (148 pp, sha256 `e7a65f330e8fc061`, retrieved 2026-08-17, tier: manufacturer)+- **Extractor:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.+- **CAD:** KiCad official libraries (CC-BY-SA 4.0).++[Datasheet PDF](docs/stm32f303rbt6-datasheet.pdf)