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GD32F103CBT6

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by Ray

GigaDevice Semicon Beijing Microcontrollers (MCU/MPU/SOC), LQFP-48(7x7). Datasheet-verified pinout, KiCad symbol/footprint/3D.

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3D Model

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Symbol & Footprint

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Datasheet

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Contents

README

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GD32F103CBT6

GigaDevice Semicon Beijing · Microcontrollers (MCU/MPU/SOC) · LQFP-48(7x7)

GD32F103CBT6 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 Battery/backup power supply for RTC and backup registers when VDD is off.
2 PC13/TAMPER-RTC bidirectional General-purpose I/O PC13; alternate function TAMPER-RTC (tamper detection / RTC output).
3 PC14/OSC32IN bidirectional General-purpose I/O PC14; alternate function OSC32IN input for the 32.768 kHz LXTAL crystal.
4 PC15/OSC32OUT bidirectional General-purpose I/O PC15; alternate function OSC32OUT for the 32.768 kHz LXTAL crystal.
5 OSCIN input High-speed external oscillator input (HXTAL crystal input, or external clock in bypass mode).
6 OSCOUT output High-speed external oscillator output (HXTAL crystal drive).
7 NRST bidirectional Bidirectional active-low device reset input/output with internal pull-up.
8 VSSA power_in Analog ground reference for ADC, DAC, and analog supply return.
9 VDDA power_in Analog supply (2.6-3.6 V) for ADC, DAC, and reset block; must be tied to VDD range.
10 PA0/WKUP bidirectional General-purpose I/O PA0; alternates: WKUP wake-up, USART1_CTS, ADC012_IN0, TIMER1_CH0, TIMER1_ETI.
11 PA1 bidirectional General-purpose I/O PA1; alternates: USART1_RTS, ADC012_IN1, TIMER1_CH1.
12 PA2 bidirectional General-purpose I/O PA2; alternates: USART1_TX, ADC012_IN2, TIMER1_CH2.
13 PA3 bidirectional General-purpose I/O PA3; alternates: USART1_RX, ADC012_IN3, TIMER1_CH3.
14 PA4 bidirectional General-purpose I/O PA4; alternates: SPI0_NSS, USART1_CK, ADC01_IN4.
15 PA5 bidirectional General-purpose I/O PA5; alternates: SPI0_SCK, ADC01_IN5.
16 PA6 bidirectional General-purpose I/O PA6; alternates: SPI0_MISO, ADC01_IN6, TIMER2_CH0; remap TIMER0_BRKIN.
17 PA7 bidirectional General-purpose I/O PA7; alternates: SPI0_MOSI, ADC01_IN7, TIMER2_CH1; remap TIMER0_CH0_ON.
18 PB0 bidirectional General-purpose I/O PB0; alternates: ADC01_IN8, TIMER2_CH2; remap TIMER0_CH1_ON.
19 PB1 bidirectional General-purpose I/O PB1; alternates: ADC01_IN9, TIMER2_CH3; remap TIMER0_CH2_ON.
20 PB2/BOOT1 bidirectional General-purpose I/O PB2; also serves as BOOT1 boot-mode select strap sampled at reset.
21 PB10 bidirectional General-purpose I/O PB10; alternates: I2C1_SCL, USART2_TX; remap TIMER1_CH2.
22 PB11 bidirectional General-purpose I/O PB11; alternates: I2C1_SDA, USART2_RX; remap TIMER1_CH3.
23 VSS_1 power_in Digital ground return.
24 VDD_1 power_in Digital supply input (2.6-3.6 V).
25 PB12 bidirectional General-purpose I/O PB12; alternates: SPI1_NSS, I2C1_SMBA, USART2_CK, TIMER0_BRKIN.
26 PB13 bidirectional General-purpose I/O PB13; alternates: SPI1_SCK, USART2_CTS, TIMER0_CH0_ON.
27 PB14 bidirectional General-purpose I/O PB14; alternates: SPI1_MISO, USART2_RTS, TIMER0_CH1_ON.
28 PB15 bidirectional General-purpose I/O PB15; alternates: SPI1_MOSI, TIMER0_CH2_ON.
29 PA8 bidirectional General-purpose I/O PA8; alternates: USART0_CK, TIMER0_CH0, CK_OUT0 (MCO).
30 PA9 bidirectional General-purpose I/O PA9; alternates: USART0_TX, TIMER0_CH1.
31 PA10 bidirectional General-purpose I/O PA10; alternates: USART0_RX, TIMER0_CH2.
32 PA11 bidirectional General-purpose I/O PA11; alternates: USART0_CTS, CAN0_RX, USBDM, TIMER0_CH3.
33 PA12 bidirectional General-purpose I/O PA12; alternates: USART0_RTS, CAN0_TX, TIMER0_ETI, USBDP.
34 PA13/JTMS/SWDIO bidirectional Debug pin JTMS (JTAG) / SWDIO (Serial Wire); default is debug function, can be remapped to GPIO PA13.
35 VSS_2 power_in Digital ground return.
36 VDD_2 power_in Digital supply input (2.6-3.6 V).
37 PA14/JTCK/SWCLK bidirectional Debug pin JTCK (JTAG) / SWCLK (Serial Wire); default is debug function, can be remapped to GPIO PA14.
38 PA15/JTDI bidirectional Debug pin JTDI; can be remapped to GPIO PA15 with alt functions TIMER1_CH0, TIMER1_ETI, SPI0_NSS.
39 PB3/JTDO bidirectional Debug pin JTDO; can be remapped to GPIO PB3 with alt functions TIMER1_CH1, SPI0_SCK.
40 PB4/NJTRST bidirectional Debug pin NJTRST (JTAG reset, active low); can be remapped to GPIO PB4 with alt functions TIMER2_CH0, SPI0_MISO.
41 PB5 bidirectional General-purpose I/O PB5; alternates: I2C0_SMBA; remap TIMER2_CH1, SPI0_MOSI.
42 PB6 bidirectional General-purpose I/O PB6; alternates: I2C0_SCL, TIMER3_CH0; remap USART0_TX.
43 PB7 bidirectional General-purpose I/O PB7; alternates: I2C0_SDA, TIMER3_CH1; remap USART0_RX.
44 BOOT0 input Boot-mode select strap sampled at reset (combined with BOOT1/PB2).
45 PB8 bidirectional General-purpose I/O PB8; alternates: TIMER3_CH2; remap I2C0_SCL, CAN0_RX.
46 PB9 bidirectional General-purpose I/O PB9; alternates: TIMER3_CH3; remap I2C0_SDA, CAN0_TX.
47 VSS_3 power_in Digital ground return.
48 VDD_3 power_in Digital supply input (2.6-3.6 V).

Key specifications

Parameter Value
Manufacturer GigaDevice Semicon Beijing
Package LQFP-48(7x7)
Category MCU
Pins 48

Ordering variants

Same part, different packaging or reel option.

  • GD32F103CBT6C4T6
  • GD32F103CBT6C6T6
  • GD32F103CBT6C8T6
  • GD32F103CBT6
  • GD32F103CBT6T4U6
  • GD32F103CBT6U6
  • GD32F103CBT6T8U6
  • GD32F103CBT6TBU6
  • GD32F103CBT6R4T6
  • GD32F103CBT6R6T6
  • GD32F103CBT6R8T6
  • GD32F103CBT6RBT6
  • GD32F103CBT6RCT6
  • GD32F103CBT6RDT6
  • GD32F103CBT6RET6
  • GD32F103CBT6RFT6
  • GD32F103CBT6RGT6
  • GD32F103CBT6RIT6
  • GD32F103CBT6RKT6
  • GD32F103CBT6V8T6
  • GD32F103CBT6VBT6
  • GD32F103CBT6VCT6
  • GD32F103CBT6VDT6
  • GD32F103CBT6VET6
  • GD32F103CBT6VFT6
  • GD32F103CBT6VGT6
  • GD32F103CBT6VIT6
  • GD32F103CBT6VKT6
  • GD32F103CBT6ZCT6
  • GD32F103CBT6ZDT6
  • GD32F103CBT6ZET6
  • GD32F103CBT6ZFT6
  • GD32F103CBT6ZGT6
  • GD32F103CBT6ZIT6
  • GD32F103CBT6ZKT6

CAD (KiCad official)

  • Symbol: GD32F103CBT6
  • 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 (112 pp, sha256 53da1a17a1523e83, 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