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GD32F303ZGT6

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GigaDevice Semicon Beijing Microcontrollers (MCU/MPU/SOC), LQFP-144(20x20). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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GD32F303ZGT6

GigaDevice Semicon Beijing · Microcontrollers (MCU/MPU/SOC) · LQFP-144(20x20)

GD32F303ZGT6 from GigaDevice Semicon Beijing, in a LQFP-144(20x20). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 PE2 bidirectional Default PE2; alternate functions TRACECK and EXMC_A23; 5 V tolerant.
2 PE3 bidirectional Default PE3; alternate functions TRACECK0 and EXMC_A19; 5 V tolerant.
3 PE4 bidirectional Default PE4; alternate functions TRACECK1 and EXMC_A20; 5 V tolerant.
4 PE5 bidirectional Default PE5; alternate functions TRACECK2 and EXMC_A21; remap TIMER8_CH0 (footnote 3); 5 V tolerant.
5 PE6 bidirectional Default PE6; alternate functions TRACECK3 and EXMC_A22; remap TIMER8_CH1 (footnote 3); 5 V tolerant.
6 VBAT power_in Backup power supply pin VBAT (default function VBAT) as listed in the pin definition table.
7 PC13-TAMPER-RTC bidirectional Default PC13; alternate function TAMPER-RTC.
8 PC14-OSC32IN bidirectional Default PC14; alternate function OSC32IN (low-speed oscillator input).
9 PC15-OSC32OUT bidirectional Default PC15; alternate function OSC32OUT (low-speed oscillator output).
10 PF0 bidirectional Default PF0; alternate function EXMC_A0; remap CTC_SYNC; 5 V tolerant.
11 PF1 bidirectional Default PF1; alternate function EXMC_A1; 5 V tolerant.
12 PF2 bidirectional Default PF2; alternate function EXMC_A2; 5 V tolerant.
13 PF3 bidirectional Default PF3; alternate function EXMC_A3; 5 V tolerant.
14 PF4 bidirectional Default PF4; alternate function EXMC_A4; 5 V tolerant.
15 PF5 bidirectional Default PF5; alternate function EXMC_A5; 5 V tolerant.
16 VSS_5 power_in Ground pin VSS_5 as listed in the pin definition table.
17 VDD_5 power_in Supply pin VDD_5 as listed in the pin definition table.
18 PF6 bidirectional Default PF6; alternate functions ADC2_IN4 and EXMC_NIORD; remap TIMER9_CH0 (footnote 3).
19 PF7 bidirectional Default PF7; alternate functions ADC2_IN5 and EXMC_NREG; remap TIMER10_CH0 (footnote 3).
20 PF8 bidirectional Default PF8; alternate functions ADC2_IN6 and EXMC_NIOWR; remap TIMER12_CH0 (footnote 3).
21 PF9 bidirectional Default PF9; alternate functions ADC2_IN7 and EXMC_CD; remap TIMER13_CH0 (footnote 3).
22 PF10 bidirectional Default PF10; alternate functions ADC2_IN8 and EXMC_INTR.
23 OSCIN input Default OSCIN (high-speed oscillator input); remap PD0.
24 OSCOUT output Default OSCOUT (high-speed oscillator output); remap PD1.
25 NRST bidirectional Reset pin NRST as listed in the pin definition table (printed as I/O).
26 PC0 bidirectional Default PC0; alternate function ADC012_IN10.
27 PC1 bidirectional Default PC1; alternate function ADC012_IN11.
28 PC2 bidirectional Default PC2; alternate function ADC012_IN12.
29 PC3 bidirectional Default PC3; alternate function ADC012_IN13.
30 VSSA power_in Analog ground pin VSSA as listed in the pin definition table.
31 VREF- power_in Reference voltage pin VREF- as listed in the pin definition table.
32 VREF+ power_in Reference voltage pin VREF+ as listed in the pin definition table.
33 VDDA power_in Analog supply pin VDDA as listed in the pin definition table.
34 PA0-WKUP bidirectional Default PA0; alternate functions WKUP, USART1_CTS, ADC012_IN0, TIMER1_CH0, TIMER1_ETI, TIMER4_CH0 and TIMER7_ETI.
35 PA1 bidirectional Default PA1; alternate functions USART1_RTS, ADC012_IN1, TIMER1_CH1 and TIMER4_CH1.
36 PA2 bidirectional Default PA2; alternate functions USART1_TX, ADC012_IN2, TIMER1_CH2, TIMER4_CH2, TIMER8_CH0 (footnote 3) and SPI0_IO2.
37 PA3 bidirectional Default PA3; alternate functions USART1_RX, ADC012_IN3, TIMER1_CH3, TIMER4_CH3, TIMER8_CH1 (footnote 3) and SPI0_IO3.
38 VSS_4 power_in Ground pin VSS_4 as listed in the pin definition table.
39 VDD_4 power_in Supply pin VDD_4 as listed in the pin definition table.
40 PA4 bidirectional Default PA4; alternate functions SPI0_NSS, USART1_CK, ADC01_IN4 and DAC_OUT0; remap SPI2_NSS and I2S2_WS.
41 PA5 bidirectional Default PA5; alternate functions SPI0_SCK, ADC01_IN5 and DAC_OUT1.
42 PA6 bidirectional Default PA6; alternate functions SPI0_MISO, ADC01_IN6, TIMER2_CH0, TIMER7_BKIN and TIMER12_CH0 (footnote 3); remap TIMER0_BKIN.
43 PA7 bidirectional Default PA7; alternate functions SPI0_MOSI, ADC01_IN7, TIMER2_CH1, TIMER7_CH0_ON and TIMER13_CH0 (footnote 3); remap TIMER0_CH0_ON.
44 PC4 bidirectional Default PC4; alternate function ADC01_IN14.
45 PC5 bidirectional Default PC5; alternate function ADC01_IN15.
46 PB0 bidirectional Default PB0; alternate functions ADC01_IN8, TIMER2_CH2 and TIMER7_CH1_ON; remap TIMER0_CH1_ON.
47 PB1 bidirectional Default PB1; alternate functions ADC01_IN9, TIMER2_CH3 and TIMER7_CH2_ON; remap TIMER0_CH2_ON.
48 PB2 bidirectional Default PB2 with BOOT1 function; 5 V tolerant.
49 PF11 bidirectional Default PF11; alternate function EXMC_NIOS16; 5 V tolerant.
50 PF12 bidirectional Default PF12; alternate function EXMC_A6; 5 V tolerant.
51 VSS_6 power_in Ground pin VSS_6 as listed in the pin definition table.
52 VDD_6 power_in Supply pin VDD_6 as listed in the pin definition table.
53 PF13 bidirectional Default PF13; alternate function EXMC_A7; 5 V tolerant.
54 PF14 bidirectional Default PF14; alternate function EXMC_A8; 5 V tolerant.
55 PF15 bidirectional Default PF15; alternate function EXMC_A9; 5 V tolerant.
56 PG0 bidirectional Default PG0; alternate function EXMC_A10; 5 V tolerant.
57 PG1 bidirectional Default PG1; alternate function EXMC_A11; 5 V tolerant.
58 PE7 bidirectional Default PE7; alternate function EXMC_D4; remap TIMER0_ETI; 5 V tolerant.
59 PE8 bidirectional Default PE8; alternate function EXMC_D5; remap TIMER0_CH0_ON; 5 V tolerant.
60 PE9 bidirectional Default PE9; alternate function EXMC_D6; remap TIMER0_CH0; 5 V tolerant.
61 VSS_7 power_in Ground pin VSS_7 as listed in the pin definition table.
62 VDD_7 power_in Supply pin VDD_7 as listed in the pin definition table.
63 PE10 bidirectional Default PE10; alternate function EXMC_D7; remap TIMER0_CH1_ON; 5 V tolerant.
64 PE11 bidirectional Default PE11; alternate function EXMC_D8; remap TIMER0_CH1; 5 V tolerant.
65 PE12 bidirectional Default PE12; alternate function EXMC_D9; remap TIMER0_CH2_ON; 5 V tolerant.
66 PE13 bidirectional Default PE13; alternate function EXMC_D10; remap TIMER0_CH2; 5 V tolerant.
67 PE14 bidirectional Default PE14; alternate function EXMC_D11; remap TIMER0_CH3; 5 V tolerant.
68 PE15 bidirectional Default PE15; alternate function EXMC_D12; remap TIMER0_BKIN; 5 V tolerant.
69 PB10 bidirectional Default PB10; alternate functions I2C1_SCL and USART2_TX; remap TIMER1_CH2; 5 V tolerant.
70 PB11 bidirectional Default PB11; alternate functions I2C1_SDA and USART2_RX; remap TIMER1_CH3; 5 V tolerant.
71 VSS_1 power_in Ground pin VSS_1 as listed in the pin definition table.
72 VDD_1 power_in Supply pin VDD_1 as listed in the pin definition table.
73 PB12 bidirectional Default PB12; alternate functions SPI1_NSS, I2C1_SMBA, USART2_CK, TIMER0_BKIN and I2S1_WS; 5 V tolerant.
74 PB13 bidirectional Default PB13; alternate functions SPI1_SCK, USART2_CTS, TIMER0_CH0_ON and I2S1_CK; 5 V tolerant.
75 PB14 bidirectional Default PB14; alternate functions SPI1_MISO, USART2_RTS, TIMER0_CH1_ON and TIMER11_CH0 (footnote 3); 5 V tolerant.
76 PB15 bidirectional Default PB15; alternate functions SPI1_MOSI, TIMER0_CH2_ON, I2S1_SD and TIMER11_CH1 (footnote 3); 5 V tolerant.
77 PD8 bidirectional Default PD8; alternate function EXMC_D13; remap USART2_TX; 5 V tolerant.
78 PD9 bidirectional Default PD9; alternate function EXMC_D14; remap USART2_RX; 5 V tolerant.
79 PD10 bidirectional Default PD10; alternate function EXMC_D15; remap USART2_CK; 5 V tolerant.
80 PD11 bidirectional Default PD11; alternate function EXMC_A16; remap USART2_CTS; 5 V tolerant.
81 PD12 bidirectional Default PD12; alternate function EXMC_A17; remap TIMER3_CH0 and USART2_RTS; 5 V tolerant.
82 PD13 bidirectional Default PD13; alternate function EXMC_A18; remap TIMER3_CH1; 5 V tolerant.
83 VSS_8 power_in Ground pin VSS_8 as listed in the pin definition table.
84 VDD_8 power_in Supply pin VDD_8 as listed in the pin definition table.
85 PD14 bidirectional Default PD14; alternate function EXMC_D0; remap TIMER3_CH2; 5 V tolerant.
86 PD15 bidirectional Default PD15; alternate function EXMC_D1; remap TIMER3_CH3 and CTC_SYNC; 5 V tolerant.
87 PG2 bidirectional Default PG2; alternate function EXMC_A12; 5 V tolerant.
88 PG3 bidirectional Default PG3; alternate function EXMC_A13; 5 V tolerant.
89 PG4 bidirectional Default PG4; alternate function EXMC_A14; 5 V tolerant.
90 PG5 bidirectional Default PG5; alternate function EXMC_A15; 5 V tolerant.
91 PG6 bidirectional Default PG6; alternate function EXMC_INT1; 5 V tolerant.
92 PG7 bidirectional Default PG7; alternate function EXMC_INT2; 5 V tolerant.
93 PG8 bidirectional Default PG8; 5 V tolerant.
94 VSS_9 power_in Ground pin VSS_9 as listed in the pin definition table.
95 VDD_9 power_in Supply pin VDD_9 as listed in the pin definition table.
96 PC6 bidirectional Default PC6; alternate functions I2S1_MCK, TIMER7_CH0 and SDIO_D6; remap TIMER2_CH0; 5 V tolerant.
97 PC7 bidirectional Default PC7; alternate functions I2S2_MCK, TIMER7_CH1 and SDIO_D7; remap TIMER2_CH1; 5 V tolerant.
98 PC8 bidirectional Default PC8; alternate functions TIMER7_CH2 and SDIO_D0; remap TIMER2_CH2; 5 V tolerant.
99 PC9 bidirectional Default PC9; alternate functions TIMER7_CH3 and SDIO_D1; remap TIMER2_CH3; 5 V tolerant.
100 PA8 bidirectional Default PA8; alternate functions USART0_CK, TIMER0_CH0, CK_OUT0, VCORE and CTC_SYNC; 5 V tolerant.
101 PA9 bidirectional Default PA9; alternate functions USART0_TX and TIMER0_CH1; 5 V tolerant.
102 PA10 bidirectional Default PA10; alternate functions USART0_RX and TIMER0_CH2; 5 V tolerant.
103 PA11 bidirectional Default PA11; alternate functions USART0_CTS, CAN0_RX, USBDM and TIMER0_CH3; 5 V tolerant.
104 PA12 bidirectional Default PA12; alternate functions USART0_RTS, CAN0_TX, TIMER0_ETI and USBDP; 5 V tolerant.
105 PA13 bidirectional Default JTMS/SWDIO; remap PA13; 5 V tolerant.
106 NC unconnected Not connected (NC) as printed in the pin definition table.
107 VSS_2 power_in Ground pin VSS_2 as listed in the pin definition table.
108 VDD_2 power_in Supply pin VDD_2 as listed in the pin definition table.
109 PA14 bidirectional Default JTCK/SWCLK; remap PA14; 5 V tolerant.
110 PA15 bidirectional Default JTDI; alternate functions SPI2_NSS and I2S2_WS; remap TIMER1_CH0, TIMER1_ETI, PA15 and SPI0_NSS; 5 V tolerant.
111 PC10 bidirectional Default PC10; alternate functions UART3_TX and SDIO_D2; remap USART2_TX, SPI2_SCK and I2S2_CK; 5 V tolerant.
112 PC11 bidirectional Default PC11; alternate functions UART3_RX and SDIO_D3; remap USART2_RX and SPI2_MISO; 5 V tolerant.
113 PC12 bidirectional Default PC12; alternate functions UART4_TX and SDIO_CK; remap USART2_CK, SPI2_MOSI and I2S2_SD; 5 V tolerant.
114 PD0 bidirectional Default PD0; alternate function EXMC_D2; remap CAN0_RX and OSCIN; 5 V tolerant.
115 PD1 bidirectional Default PD1; alternate function EXMC_D3; remap CAN0_TX and OSCOUT; 5 V tolerant.
116 PD2 bidirectional Default PD2; alternate functions TIMER2_ETI, SDIO_CMD and UART4_RX; 5 V tolerant.
117 PD3 bidirectional Default PD3; alternate function EXMC_CLK; remap USART1_CTS; 5 V tolerant.
118 PD4 bidirectional Default PD4; alternate function EXMC_NOE; remap USART1_RTS; 5 V tolerant.
119 PD5 bidirectional Default PD5; alternate function EXMC_NWE; remap USART1_TX; 5 V tolerant.
120 VSS_10 power_in Ground pin VSS_10 as listed in the pin definition table.
121 VDD_10 power_in Supply pin VDD_10 as listed in the pin definition table.
122 PD6 bidirectional Default PD6; alternate function EXMC_NWAIT; remap USART1_RX; 5 V tolerant.
123 PD7 bidirectional Default PD7; alternate functions EXMC_NE0 and EXMC_NCE1; remap USART1_CK; 5 V tolerant.
124 PG9 bidirectional Default PG9; alternate functions EXMC_NE1 and EXMC_NCE2; 5 V tolerant.
125 PG10 bidirectional Default PG10; alternate functions EXMC_NCE3_0 and EXMC_NE2; 5 V tolerant.
126 PG11 bidirectional Default PG11; alternate function EXMC_NCE3_1; 5 V tolerant.
127 PG12 bidirectional Default PG12; alternate function EXMC_NE3; 5 V tolerant.
128 PG13 bidirectional Default PG13; alternate function EXMC_A24; 5 V tolerant.
129 PG14 bidirectional Default PG14; alternate function EXMC_A25; 5 V tolerant.
130 VSS_11 power_in Ground pin VSS_11 as listed in the pin definition table.
131 VDD_11 power_in Supply pin VDD_11 as listed in the pin definition table.
132 PG15 bidirectional Default PG15; 5 V tolerant.
133 PB3 bidirectional Default JTDO; alternate functions SPI2_SCK and I2S2_CK; remap PB3, TRACESWO, TIMER1_CH1 and SPI0_SCK; 5 V tolerant.
134 PB4 bidirectional Default NJTRST; alternate function SPI2_MISO; remap TIMER2_CH0, PB4 and SPI0_MISO; 5 V tolerant.
135 PB5 bidirectional Default PB5; alternate functions I2C0_SMBA, SPI2_MOSI and I2S2_SD; remap TIMER2_CH1 and SPI0_MOSI.
136 PB6 bidirectional Default PB6; alternate functions I2C0_SCL and TIMER3_CH0; remap USART0_TX and SPI0_IO2; 5 V tolerant.
137 PB7 bidirectional Default PB7; alternate functions I2C0_SDA, TIMER3_CH1 and EXMC_NADV; remap USART0_RX and SPI0_IO3; 5 V tolerant.
138 BOOT0 input Boot mode selection input BOOT0 as listed in the pin definition table.
139 PB8 bidirectional Default PB8; alternate functions TIMER3_CH2, SDIO_D4 and TIMER9_CH0 (footnote 3); remap I2C0_SCL and CAN0_RX; 5 V tolerant.
140 PB9 bidirectional Default PB9; alternate functions TIMER3_CH3, SDIO_D5 and TIMER10_CH0 (footnote 3); remap I2C0_SDA and CAN0_TX; 5 V tolerant.
141 PE0 bidirectional Default PE0; alternate functions TIMER3_ETI and EXMC_NBL0; 5 V tolerant.
142 PE1 bidirectional Default PE1; alternate function EXMC_NBL1; 5 V tolerant.
143 VSS_3 power_in Ground pin VSS_3 as listed in the pin definition table.
144 VDD_3 power_in Supply pin VDD_3 as listed in the pin definition table.

Key specifications

Parameter Value
Manufacturer GigaDevice Semicon Beijing
Package LQFP-144(20x20)
Category Embedded Processors & Controllers
Pins 144

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
VDD External voltage range VDD -0.3 3.6 V 50
External analog supply voltage VDDA -0.3 3.6 V 50
External battery supply voltage VBAT -0.3 3.6 V 50
Input voltage on 5V tolerant pin VIN -0.3 V 50
Input voltage on other I/O VIN -0.3 4 V 50
Variations between different VDD power pins /ΔVDDx/ 50 mV 50
Variations between different ground pins /VSSX −VSS/ 50 mV 50
Maximum current for GPIO pins IIO 25 mA 50
Operating temperature range TA -40 85 °C 50
Storage temperature range TSTG -55 150 °C 50
Maximum junction temperature TJ 125 °C 50
Supply voltage VDD 2.6 3.3 3.6 V 50
Analog supply voltage VDDA 2.6 3.3 3.6 V Same as VDD 50
Battery supply voltage VBAT 1.8 3.6 V 50
Power on reset threshold VPOR 2.3 2.4 2.48 V 53
Power down reset threshold VPDR 1.72 1.8 1.88 V 53
Electrostatic discharge voltage (human body model) VESD(HBM) 6000 V TA=25 °C; JESD22-A114 53
Electrostatic discharge voltage (charge device model) VESD(CDM) 1000 V TA=25 °C; JESD22-C101 53
Static latch-up I-test LU I-test -200 200 mA TA=25 °C; JESD78 53
Vsupply over voltage 5.4 V 53
High Speed External oscillator (HXTAL) frequency fHXTAL 4 8 32 MHz VDD=3.3V 54
Recommended load capacitance on OSCIN and OSCOUT CHXTAL 20 30 pF 54
HXTAL oscillator duty cycle DHXTAL 30 50 70 % 54
Recommended load capacitance on OSC32IN and OSC32OUT CLXTAL 15 pF 54
LXTAL oscillator duty cycle DLXTAL 30 50 70 % 54
IRC8M oscillator Frequency accuracy, Factory-trimmed ACCIRC8M -4 5 % VDD=3.3V, TA=-40°C ~+105°C 55
IRC8M oscillator Frequency accuracy, Factory-trimmed ACCIRC8M -2 2 % VDD=3.3V, TA=0°C ~ +85°C 55
IRC8M oscillator Frequency accuracy, Factory-trimmed ACCIRC8M -1 1 % VDD=3.3V, TA=25°C 55
IRC48M oscillator Frequency accuracy, Factory-trimmed ACCIRC48M -4 5 % VDD=3.3V, TA=-40°C ~+105°C 55
IRC48M oscillator Frequency accuracy, Factory-trimmed ACCIRC48M -3 3 % VDD=3.3V, TA=0°C ~ +85°C 55
IRC48M oscillator Frequency accuracy, Factory-trimmed ACCIRC48M -2 2 % VDD=3.3V, TA=25°C 55
Low Speed Internal oscillator (IRC40K) frequency fIRC40K 20 40 45 KHz VDD=VBAT=3.3V, TA=-40°C ~ +85°C 55
PLL input clock frequency fPLLIN 1 25 MHz 56
PLL output clock frequency fPLLOUT 16 120 MHz 56
PLL VCO output clock frequency fVCOOUT 32 240 MHz 56
PLL lock time tLOCK 300 μs 56
Number of guaranteed program /erase cycles before failure (Endurance) PECYC 100 kcycles TA=-40°C ~ +85°C 56
Data retention time tRET 20 years TA=125°C 56
Word programming time tPROG 200 400 us TA=-40°C ~ +85°C 56
Page erase time tERASE 60 100 450 ms TA=-40°C ~ +85°C 56
Mass erase time TIMERERASE 3.2 9.6 s TA=-40°C ~ +85°C 56
Standard IO Low level input voltage VIL 0.97 V VDD=2.6V 57
Standard IO Low level input voltage VIL 1.29 V VDD=3.3V 57
Standard IO Low level input voltage VIL 1.42 V VDD=3.6V 57
Standard IO High level input voltage VIH 1.67 V VDD=2.6V 57
Standard IO High level input voltage VIH 1.97 V VDD=3.3V 57
Standard IO High level input voltage VIH 2.09 V VDD=3.6V 57
Low level output voltage VOL 0.15 V VDD=3.3V, IIO=8mA 57
Low level output voltage VOL 0.4 V VDD=3.3V, IIO=20mA 57
High level output voltage VOH 3.11 V VDD=3.3V, IIO=8mA 57
High level output voltage VOH 2.81 V VDD=3.3V, IIO=20mA 57
Internal pull-up resistor RPU 30 40 50 kΩ All pins VIN=VSS 57
Internal pull-down resistor RPD 30 40 50 kΩ All pins VIN=VDD 57
Internal pull-up resistor RPU 7.5 10 13.5 kΩ PA10 57
Internal pull-down resistor RPD 7.5 10 13.5 kΩ PA10 57
ADC clock fADC 0.1 40 MHz 58
Sampling time ts 0.0375 5.99 μs fADC=40MHz 58
Startup time tSU 1 μs 58
SCK clock frequency (SPI) fSCK 30 MHz 61
SCK clock frequency (USART) fSCK 84 MHz 61

CAD (KiCad official)

  • Symbol: GD32F303ZGT6
  • Footprint: Package_QFP:LQFP-144_20x20mm_P0.5mm
  • 3D model: LQFP-144(20x20) (KiCad packages3D, STEP)
  • 3D model files: gd32f303zgt6-etched.step / gd32f303zgt6-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); gd32f303zgt6.step / gd32f303zgt6.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: GigaDevice Semicon Beijing datasheet (66 pp, sha256 dd7f4dfb6899b103, retrieved 2026-10-20, 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