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GD32F303CBT6
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GigaDevice Semicon Beijing Microcontrollers (MCU/MPU/SOC), LQFP-48(7x7). Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+107@@ -0,0 +1,107 @@+# GD32F303CBT6++**GigaDevice Semicon Beijing** · Microcontrollers (MCU/MPU/SOC) · LQFP-48(7x7)++GD32F303CBT6 from GigaDevice Semicon Beijing, in a LQFP-48(7x7). 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 domain supply (1.8-3.6 V). Powers RTC and backup registers when VDD is off. |+| 2 | PC13/TAMPER-RTC | bidirectional | GPIO PC13 with alternate TAMPER-RTC in the backup domain. Limited drive strength (backup-domain pad). |+| 3 | PC14/OSC32IN | bidirectional | GPIO PC14 or 32.768 kHz LSE crystal input (OSC32IN). |+| 4 | PC15/OSC32OUT | bidirectional | GPIO PC15 or 32.768 kHz LSE crystal output (OSC32OUT). |+| 5 | OSCIN | input | HSE main oscillator input (typically 4-32 MHz crystal). Can be remapped to PD0. |+| 6 | OSCOUT | output | HSE main oscillator output. Can be remapped to PD1. |+| 7 | NRST | bidirectional | Active-low bidirectional reset. Internal pull-up; drive low to reset the MCU. |+| 8 | VSSA | power_in | Analog ground reference for ADC/DAC. |+| 9 | VDDA | power_in | Analog supply for ADC/DAC (2.6-3.6 V). Tie to VDD via ferrite/RC filter. |+| 10 | PA0/WKUP | bidirectional | GPIO PA0. Alternate: WKUP, USART1_CTS, ADC012_IN0, TIMER1_CH0/ETI, TIMER4_CH0. |+| 11 | PA1 | bidirectional | GPIO PA1. Alternate: USART1_RTS, ADC012_IN1, TIMER1_CH1, TIMER4_CH1. |+| 12 | PA2 | bidirectional | GPIO PA2. Alternate: USART1_TX, ADC012_IN2, TIMER1_CH2, TIMER4_CH2, SPI0_IO2. |+| 13 | PA3 | bidirectional | GPIO PA3. Alternate: USART1_RX, ADC012_IN3, TIMER1_CH3, TIMER4_CH3, SPI0_IO3. |+| 14 | PA4 | bidirectional | GPIO PA4. Alternate: SPI0_NSS, USART1_CK, ADC01_IN4, DAC_OUT0. Remap: SPI2_NSS, I2S2_WS. |+| 15 | PA5 | bidirectional | GPIO PA5. Alternate: SPI0_SCK, ADC01_IN5, DAC_OUT1. |+| 16 | PA6 | bidirectional | GPIO PA6. Alternate: SPI0_MISO, ADC01_IN6, TIMER2_CH0. Remap: TIMER0_BRKIN. |+| 17 | PA7 | bidirectional | GPIO PA7. Alternate: SPI0_MOSI, ADC01_IN7, TIMER2_CH1. Remap: TIMER0_CH0_ON. |+| 18 | PB0 | bidirectional | GPIO PB0. Alternate: ADC01_IN8, TIMER2_CH2. Remap: TIMER0_CH1_ON. |+| 19 | PB1 | bidirectional | GPIO PB1. Alternate: ADC01_IN9, TIMER2_CH3. Remap: TIMER0_CH2_ON. |+| 20 | PB2/BOOT1 | bidirectional | GPIO PB2, doubles as BOOT1 mode-select strap sampled at reset. 5V tolerant. |+| 21 | PB10 | bidirectional | GPIO PB10, 5V tolerant. Alternate: I2C1_SCL, USART2_TX. Remap: TIMER1_CH2. |+| 22 | PB11 | bidirectional | GPIO PB11, 5V tolerant. Alternate: I2C1_SDA, USART2_RX. Remap: TIMER1_CH3. |+| 23 | VSS_1 | power_in | Digital ground (bank 1). |+| 24 | VDD_1 | power_in | Digital supply (2.6-3.6 V), bank 1. Decouple with 100 nF close to pin. |+| 25 | PB12 | bidirectional | GPIO PB12, 5V tolerant. Alternate: SPI1_NSS, I2C1_SMBA, USART2_CK, TIMER0_BRKIN, I2S1_WS. |+| 26 | PB13 | bidirectional | GPIO PB13, 5V tolerant. Alternate: SPI1_SCK, USART2_CTS, TIMER0_CH0_ON, I2S1_CK. |+| 27 | PB14 | bidirectional | GPIO PB14, 5V tolerant. Alternate: SPI1_MISO, USART2_RTS, TIMER0_CH1_ON. |+| 28 | PB15 | bidirectional | GPIO PB15, 5V tolerant. Alternate: SPI1_MOSI, TIMER0_CH2_ON, I2S1_SD. |+| 29 | PA8 | bidirectional | GPIO PA8, 5V tolerant. Alternate: USART0_CK, TIMER0_CH0, CK_OUT0, CTC_SYNC. |+| 30 | PA9 | bidirectional | GPIO PA9, 5V tolerant. Alternate: USART0_TX, TIMER0_CH1. |+| 31 | PA10 | bidirectional | GPIO PA10, 5V tolerant. Alternate: USART0_RX, TIMER0_CH2. |+| 32 | PA11 | bidirectional | GPIO PA11, 5V tolerant. Alternate: USART0_CTS, CAN0_RX, USBDM (USB D-), TIMER0_CH3. |+| 33 | PA12 | bidirectional | GPIO PA12, 5V tolerant. Alternate: USART0_RTS, CAN0_TX, TIMER0_ETI, USBDP (USB D+). |+| 34 | PA13 | bidirectional | GPIO PA13, 5V tolerant. Default JTMS/SWDIO (serial-wire data / JTAG mode select). |+| 35 | VSS_2 | power_in | Digital ground (bank 2). |+| 36 | VDD_2 | power_in | Digital supply (2.6-3.6 V), bank 2. Decouple with 100 nF close to pin. |+| 37 | PA14 | bidirectional | GPIO PA14, 5V tolerant. Default JTCK/SWCLK (serial-wire clock / JTAG clock). |+| 38 | PA15 | bidirectional | GPIO PA15, 5V tolerant. Default JTDI. Alternate: SPI2_NSS, I2S2_WS. Remap: TIMER1_CH0/ETI, SPI0_NSS. |+| 39 | PB3 | bidirectional | GPIO PB3, 5V tolerant. Default JTDO. Alternate: SPI2_SCK, I2S2_CK. Remap: TRACESWO, TIMER1_CH1, SPI0_SCK. |+| 40 | PB4 | bidirectional | GPIO PB4, 5V tolerant. Default NJTRST. Alternate: SPI2_MISO. Remap: TIMER2_CH0, SPI0_MISO. |+| 41 | PB5 | bidirectional | GPIO PB5. Alternate: I2C0_SMBA, SPI2_MOSI, I2S2_SD. Remap: TIMER2_CH1, SPI0_MOSI. |+| 42 | PB6 | bidirectional | GPIO PB6, 5V tolerant. Alternate: I2C0_SCL, TIMER3_CH0. Remap: USART0_TX, SPI0_IO2. |+| 43 | PB7 | bidirectional | GPIO PB7, 5V tolerant. Alternate: I2C0_SDA, TIMER3_CH1. Remap: USART0_RX, SPI0_IO3. |+| 44 | BOOT0 | input | Boot mode select input sampled at reset (with BOOT1/PB2). Selects main flash, system memory, or SRAM boot. |+| 45 | PB8 | bidirectional | GPIO PB8, 5V tolerant. Alternate: TIMER3_CH2. Remap: I2C0_SCL, CAN0_RX. |+| 46 | PB9 | bidirectional | GPIO PB9, 5V tolerant. Alternate: TIMER3_CH3. Remap: I2C0_SDA, CAN0_TX. |+| 47 | VSS_3 | power_in | Digital ground (bank 3). |+| 48 | VDD_3 | power_in | Digital supply (2.6-3.6 V), bank 3. Decouple with 100 nF close to pin. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | GigaDevice Semicon Beijing |+| Package | LQFP-48(7x7) |+| Category | MCU |+| Pins | 48 |++## Ordering variants++- `GD32F303CBT6CBT6`+- `GD32F303CBT6CCT6`+- `GD32F303CBT6CET6`+- `GD32F303CBT6CGT6`+- `GD32F303CBT6RBT6`+- `GD32F303CBT6RCT6`+- `GD32F303CBT6RET6`+- `GD32F303CBT6RGT6`+- `GD32F303CBT6RIT6`+- `GD32F303CBT6RKT6`+- `GD32F303CBT6VBT6`+- `GD32F303CBT6VCT6`+- `GD32F303CBT6VET6`+- `GD32F303CBT6VGT6`+- `GD32F303CBT6VIT6`+- `GD32F303CBT6VKT6`+- `GD32F303CBT6ZCT6`+- `GD32F303CBT6ZET6`+- `GD32F303CBT6ZGT6`+- `GD32F303CBT6ZIT6`+- `GD32F303CBT6ZKT6`++## CAD (KiCad official)++- Symbol: `GD32F303CBT6`+- Footprint: `Package_QFP:LQFP-48_7x7mm_P0.5mm`+- 3D model: LQFP-48(7x7) (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [GigaDevice Semicon Beijing datasheet](docs/gd32f303cbt6-datasheet.pdf) (99 pp, sha256 `98e6e299f43ef5ac`, retrieved 2026-08-17, tier: lcsc)+- **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/gd32f303cbt6-datasheet.pdf)
page.jsonadded+34@@ -0,0 +1,34 @@+{+ "slug": "gd32f303cbt6",+ "version": "0.1.0",+ "type": "component",+ "description": "GigaDevice Semicon Beijing Microcontrollers (MCU/MPU/SOC), LQFP-48(7x7). Datasheet-verified pinout, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "mcu",+ "gd32f303cbt6"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "gd32f303cbt6.kicad_sym",+ "gd32f303cbt6.kicad_mod",+ "gd32f303cbt6.glb",+ "gd32f303cbt6.step",+ "gd32f303cbt6.lbr",+ "docs/hero.png",+ "docs/gd32f303cbt6-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html"+ ],+ "visibility": "public",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}