component
GD32F350CBT6
Public Made by Adomby adom
GigaDevice Semicon Beijing Microcontrollers (MCU/MPU/SOC), LQFP-48(7x7). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
"schema_version": 1,
"type": "component",
"slug": "gd32f350cbt6",
"title": "GD32F350CBT6",
"brief": "GigaDevice Semicon Beijing Microcontrollers (MCU/MPU/SOC), LQFP-48(7x7). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"version": "0.1.0",
"license": "CC-BY-SA-4.0",
"tags": [
"component",
"embedded processors & controllers",
"gd32f350cbt6",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "GD32F350CBT6",
"manufacturer": "GigaDevice Semicon Beijing",
"package": "LQFP-48(7x7)",
"pin_count": 48,
"category": "Embedded Processors & Controllers",
"subcategory": "Microcontrollers (MCU/MPU/SOC)",
"datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586182547869487104",
"parts": {
"symbol": "gd32f350cbt6.kicad_sym",
"footprint": "gd32f350cbt6.kicad_mod",
"model_3d": "gd32f350cbt6-hero.glb",
"model_3d_plain": "gd32f350cbt6-etched.glb",
"model_3d_step": "gd32f350cbt6-etched.step",
"model_3d_step_plain": "gd32f350cbt6.step",
"lbr": "gd32f350cbt6.lbr"
},
"distributor_links": {
"lcsc": "C139948"
},
"distributor_check": {
"checked_at": "2026-10-19T05:03:38Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": null,
"status": "no match"
},
"mouser": {
"pn": null,
"status": "no match"
}
},
"pins": [
{
"number": "1",
"name": "VBAT",
"type": "power_in",
"description": "Backup power supply input, default function VBAT; the pin definition table gives no voltage limits for it."
},
{
"number": "2",
"name": "PC13-TAMPER-RTC",
"type": "bidirectional",
"description": "General-purpose I/O PC13 by default, with additional RTC_TAMP0, RTC_TS, RTC_OUT and WKUP1 functions."
},
{
"number": "3",
"name": "PC14-OSC32IN",
"type": "bidirectional",
"description": "General-purpose I/O PC14 by default, with additional OSC32IN function for the low-speed 32.768 kHz crystal input."
},
{
"number": "4",
"name": "PC15-OSC32OUT",
"type": "bidirectional",
"description": "General-purpose I/O PC15 by default, with additional OSC32OUT function for the low-speed 32.768 kHz crystal output."
},
{
"number": "5",
"name": "PF0-OSCIN",
"type": "bidirectional",
"description": "5 V tolerant I/O PF0 by default, with alternate CTC_SYNC and additional OSCIN high-speed oscillator input function."
},
{
"number": "6",
"name": "PF1-OSCOUT",
"type": "bidirectional",
"description": "5 V tolerant I/O PF1 by default, with additional OSCOUT high-speed oscillator output function."
},
{
"number": "7",
"name": "NRST",
"type": "bidirectional",
"description": "Reset pin with default function NRST, listed as I/O in the pin definition table."
},
{
"number": "8",
"name": "VSSA",
"type": "power_in",
"description": "Analog ground pin, default function VSSA."
},
{
"number": "9",
"name": "VDDA",
"type": "power_in",
"description": "Analog supply pin, default function VDDA; the block diagram shows the DAC powered from VDD/VDDA."
},
{
"number": "10",
"name": "PA0-WKUP",
"type": "bidirectional",
"description": "GPIO PA0 with ADC_IN0, CMP0_IM6, RTC_TAMP1 and WKUP0 additional functions, and alternates USART0_CTS, USART1_CTS, TIMER1_CH0, TIMER1_ETI, TSI_G0_IO0, I2C1_SCL and CMP0_OUT."
},
{
"number": "11",
"name": "PA1",
"type": "bidirectional",
"description": "GPIO PA1 with ADC_IN1 and CMP0_IP additional functions, and alternates USART0_RTS, USART1_RTS, TIMER1_CH1, TSI_G0_IO1, I2C1_SDA and EVENTOUT."
},
{
"number": "12",
"name": "PA2",
"type": "bidirectional",
"description": "GPIO PA2 with ADC_IN2 and CMP1_IM6 additional functions, and alternates USART0_TX, USART1_TX, TIMER1_CH2, TIMER14_CH0, CMP1_OUT and TSI_G0_IO2."
},
{
"number": "13",
"name": "PA3",
"type": "bidirectional",
"description": "GPIO PA3 with ADC_IN3 and CMP1_IP additional functions, and alternates USART0_RX, USART1_RX, TIMER1_CH3, TIMER14_CH1 and TSI_G0_IO3."
},
{
"number": "14",
"name": "PA4",
"type": "bidirectional",
"description": "GPIO PA4 with ADC_IN4, CMP0_IM4, CMP1_IM4 and DAC0_OUT additional functions, and alternates SPI0_NSS/I2S0_WS, USART0_CK, USART1_CK, TIMER13_CH0, TSI_G1_IO0 and SPI1_NSS."
},
{
"number": "15",
"name": "PA5",
"type": "bidirectional",
"description": "GPIO PA5 with ADC_IN5, CMP0_IM5 and CMP1_IM5 additional functions, and alternates SPI0_SCK/I2S0_CK, CEC, TIMER1_CH0, TIMER1_ETI and TSI_G1_IO1."
},
{
"number": "16",
"name": "PA6",
"type": "bidirectional",
"description": "GPIO PA6 with ADC_IN6 additional function, and alternates SPI0_MISO/I2S0_MCK, TIMER2_CH0, TIMER0_BKIN, TIMER15_CH0, CMP0_OUT, TSI_G1_IO2 and EVENTOUT."
},
{
"number": "17",
"name": "PA7",
"type": "bidirectional",
"description": "GPIO PA7 with ADC_IN7 additional function, and alternates SPI0_MOSI/I2S0_SD, TIMER2_CH1, TIMER0_CH0_ON, TIMER13_CH0, TIMER16_CH0, CMP1_OUT, TSI_G1_IO3 and EVENTOUT."
},
{
"number": "18",
"name": "PB0",
"type": "bidirectional",
"description": "GPIO PB0 with ADC_IN8 additional function, and alternates TIMER2_CH2, TIMER0_CH1_ON, TSI_G2_IO1, USART1_RX and EVENTOUT."
},
{
"number": "19",
"name": "PB1",
"type": "bidirectional",
"description": "GPIO PB1 with ADC_IN9 additional function, and alternates TIMER2_CH3, TIMER13_CH0, TIMER0_CH2_ON, TSI_G2_IO2 and SPI1_SCK."
},
{
"number": "20",
"name": "PB2",
"type": "bidirectional",
"description": "5 V tolerant GPIO PB2 with alternate function TSI_G2_IO3."
},
{
"number": "21",
"name": "PB10",
"type": "bidirectional",
"description": "5 V tolerant GPIO PB10 with alternates I2C0_SCL/I2C1_SCL, CEC, TIMER1_CH2, TSITG and SPI1_IO2."
},
{
"number": "22",
"name": "PB11",
"type": "bidirectional",
"description": "5 V tolerant GPIO PB11 with alternates I2C0_SDA/I2C1_SDA, TIMER1_CH3, TSI_G5_IO0, EVENTOUT and SPI1_IO3."
},
{
"number": "23",
"name": "VSS",
"type": "power_in",
"description": "Ground pin, default function VSS."
},
{
"number": "24",
"name": "VDD",
"type": "power_in",
"description": "Digital supply pin, default function VDD; the device operates from a 2.6 to 3.6 V power supply."
},
{
"number": "25",
"name": "PB12",
"type": "bidirectional",
"description": "5 V tolerant GPIO PB12 with alternates SPI0_NSS/SPI1_NSS, EVENTOUT, TIMER0_BKIN, TSI_G5_IO1 and I2C1_SMBA."
},
{
"number": "26",
"name": "PB13",
"type": "bidirectional",
"description": "5 V tolerant GPIO PB13 with alternates SPI0_SCK/SPI1_SCK, TIMER0_CH0_ON and TSI_G5_IO2."
},
{
"number": "27",
"name": "PB14",
"type": "bidirectional",
"description": "5 V tolerant GPIO PB14 with alternates SPI0_MISO/SPI1_MISO, TIMER14_CH0, TIMER0_CH1_ON and TSI_G5_IO3."
},
{
"number": "28",
"name": "PB15",
"type": "bidirectional",
"description": "5 V tolerant GPIO PB15 with additional RTC_REFIN and WKUP6 functions, and alternates SPI0_MOSI/SPI1_MOSI, TIMER14_CH1, TIMER0_CH2_ON and TIMER14_CH0_ON."
},
{
"number": "29",
"name": "PA8",
"type": "bidirectional",
"description": "5 V tolerant GPIO PA8 with alternates USART0_CK, TIMER0_CH0, CK_OUT, USART1_TX, EVENTOUT, USBFS_SOF and CTC_SYNC."
},
{
"number": "30",
"name": "PA9",
"type": "bidirectional",
"description": "5 V tolerant GPIO PA9 with alternates USART0_TX, TIMER0_CH1, TIMER14_BKIN, TSI_G3_IO0, I2C0_SCL and USBFS_VBUS."
},
{
"number": "31",
"name": "PA10",
"type": "bidirectional",
"description": "5 V tolerant GPIO PA10 with alternates USART0_RX, TIMER0_CH2, TIMER16_BKIN, TSI_G3_IO1, I2C0_SDA and USBFS_ID."
},
{
"number": "32",
"name": "PA11",
"type": "bidirectional",
"description": "5 V tolerant GPIO PA11 with additional USBFS_DM function, and alternates USART0_CTS, TIMER0_CH3, CMP0_OUT, TSI_G3_IO2, EVENTOUT and SPI1_IO2."
},
{
"number": "33",
"name": "PA12",
"type": "bidirectional",
"description": "5 V tolerant GPIO PA12 with additional USBFS_DP function, and alternates USART0_RTS, TIMER0_ETI, CMP1_OUT, TSI_G3_IO3, EVENTOUT and SPI1_IO3."
},
{
"number": "34",
"name": "PA13",
"type": "bidirectional",
"description": "5 V tolerant GPIO PA13 with default SWDIO function, and alternates IFRP_OUT and SPI1_MISO."
},
{
"number": "35",
"name": "PF6",
"type": "bidirectional",
"description": "5 V tolerant GPIO PF6 with alternates I2C0_SCL and I2C1_SCL."
},
{
"number": "36",
"name": "PF7",
"type": "bidirectional",
"description": "5 V tolerant GPIO PF7 with alternates I2C0_SDA and I2C1_SDA."
},
{
"number": "37",
"name": "PA14",
"type": "bidirectional",
"description": "5 V tolerant GPIO PA14 with default SWCLK function, and alternates USART0_TX, USART1_TX and SPI1_MOSI."
},
{
"number": "38",
"name": "PA15",
"type": "bidirectional",
"description": "5 V tolerant GPIO PA15 with alternates SPI0_NSS/I2S0_WS, USART0_RX, USART1_RX, TIMER1_CH0, TIMER1_ETI, SPI1_NSS and EVENTOUT."
},
{
"number": "39",
"name": "PB3",
"type": "bidirectional",
"description": "5 V tolerant GPIO PB3 with alternates SPI0_SCK/I2S0_CK, EVENTOUT, TIMER1_CH1 and TSI_G4_IO0."
},
{
"number": "40",
"name": "PB4",
"type": "bidirectional",
"description": "5 V tolerant GPIO PB4 with alternates SPI0_MISO/I2S0_MCK, TIMER2_CH0, EVENTOUT and TSI_G4_IO1."
},
{
"number": "41",
"name": "PB5",
"type": "bidirectional",
"description": "5 V tolerant GPIO PB5 with additional WKUP5 function, and alternates SPI0_MOSI/I2S0_SD, I2C0_SMBA, TIMER15_BKIN and TIMER2_CH1."
},
{
"number": "42",
"name": "PB6",
"type": "bidirectional",
"description": "5 V tolerant GPIO PB6 with alternates I2C0_SCL, USART0_TX, TIMER15_CH0_ON and TSI_G4_IO2."
},
{
"number": "43",
"name": "PB7",
"type": "bidirectional",
"description": "5 V tolerant GPIO PB7 with alternates I2C0_SDA, USART0_RX, TIMER16_CH0_ON and TSI_G4_IO3."
},
{
"number": "44",
"name": "BOOT0",
"type": "input",
"description": "Boot mode select input with default function BOOT0."
},
{
"number": "45",
"name": "PB8",
"type": "bidirectional",
"description": "5 V tolerant GPIO PB8 with alternates I2C0_SCL, CEC, TIMER15_CH0 and TSITG."
},
{
"number": "46",
"name": "PB9",
"type": "bidirectional",
"description": "5 V tolerant GPIO PB9 with alternates I2C0_SDA, IFRP_OUT, TIMER16_CH0, EVENTOUT and I2S0_MCK."
},
{
"number": "47",
"name": "VSS",
"type": "power_in",
"description": "Ground pin, default function VSS."
},
{
"number": "48",
"name": "VDD",
"type": "power_in",
"description": "Digital supply pin, default function VDD; the device operates from a 2.6 to 3.6 V power supply."
}
],
"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: Table 2 footnote 4 says USART1 alternates (marked (4)) apply to GD32F350x8 and x6 only, but Table 3 ; Footnote 3 (USART0/SPI0/I2C0 alternates on GD32F350x4 only) versus footnote 2/4 (x8/x6/xB) applicabi; NRST is printed as I/O in the pin definition table; it is typed bidirectional to match the datasheet"
],
"pages_sent": 25,
"cost_usd": 0.1488,
"at": "2026-10-19T05:02:45"
},
"datasheet": {
"url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586182547869487104",
"pages": 50,
"sha256": "afbad49cb5ce969a",
"source_tier": "lcsc"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 48,
"described": 48,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
},
"models_3d": [
{
"file": "gd32f350cbt6.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
9,
9,
1.5
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "9dea352d93177c2904afd7d7b68ea8855ce1ab691f69f8b3e13655600514b6bf",
"checked": "2026-10-19",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "gd32f350cbt6-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
9,
9,
1.5
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "5048f7a44bf3e4564f6e2fdfb1e959d42dee350e6d5f55dea773065633abef98",
"checked": "2026-10-19",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
},
"metadata": {
"specs": {
"Manufacturer": "GigaDevice Semicon Beijing",
"Package": "LQFP-48(7x7)",
"Category": "Embedded Processors & Controllers",
"Pins": "48"
},
"characteristics": {
"version": 1,
"source": "datasheet",
"datasheet_sha256": "afbad49cb5ce969acf44f9c696e8f6ee2504d41d44ba411d08ad154b500a7e9f",
"rows": [
{
"name": "External voltage range (VDD), absolute max",
"symbol": "VDD",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 3.6,
"conditions": "Referenced to VSS; printed as VSS - 0.3 / VSS + 3.6",
"source_page": 32,
"source": "datasheet"
},
{
"name": "External analog supply voltage (VDDA), absolute max",
"symbol": "VDDA",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 3.6,
"conditions": "Referenced to VSSA; printed as VSSA - 0.3 / VSSA + 3.6",
"source_page": 32,
"source": "datasheet"
},
{
"name": "External battery supply voltage (VBAT), absolute max",
"symbol": "VBAT",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 3.6,
"conditions": "Referenced to VSS; printed as VSS - 0.3 / VSS + 3.6",
"source_page": 32,
"source": "datasheet"
},
{
"name": "Input voltage on 5V tolerant pin",
"symbol": "VIN",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 4,
"conditions": "5V tolerant pin; min printed as VSS - 0.3, max printed as VDD + 4.0",
"source_page": 32,
"source": "datasheet"
},
{
"name": "Input voltage on other I/O",
"symbol": "VIN",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 4,
"conditions": "Other I/O; min printed as VSS - 0.3",
"source_page": 32,
"source": "datasheet"
},
{
"name": "Variations between different VDD power pins",
"symbol": "|ΔVDDx|",
"kind": "absolute_maximum",
"unit": "mV",
"min": null,
"typ": null,
"max": 50,
"conditions": "",
"source_page": 32,
"source": "datasheet"
},
{
"name": "Variations between different ground pins",
"symbol": "|VSSX −VSS|",
"kind": "absolute_maximum",
"unit": "mV",
"min": null,
"typ": null,
"max": 50,
"conditions": "",
"source_page": 32,
"source": "datasheet"
},
{
"name": "Maximum current for GPIO pins",
"symbol": "IIO",
"kind": "absolute_maximum",
"unit": "mA",
"min": null,
"typ": null,
"max": 25,
"conditions": "",
"source_page": 32,
"source": "datasheet"
},
{
"name": "Operating temperature range",
"symbol": "TA",
"kind": "absolute_maximum",
"unit": "°C",
"min": -40,
"typ": null,
"max": 85,
"conditions": "",
"source_page": 32,
"source": "datasheet"
},
{
"name": "Storage temperature range",
"symbol": "TSTG",
"kind": "absolute_maximum",
"unit": "°C",
"min": -55,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 32,
"source": "datasheet"
},
{
"name": "Maximum junction temperature",
"symbol": "TJ",
"kind": "absolute_maximum",
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