component
GD32F350K8U6
Public Made by Adomby adom
GigaDevice Semicon Beijing Microcontrollers (MCU/MPU/SOC), QFN-32-EP(5x5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
"schema_version": 1,
"type": "component",
"slug": "gd32f350k8u6",
"title": "GD32F350K8U6",
"brief": "GigaDevice Semicon Beijing Microcontrollers (MCU/MPU/SOC), QFN-32-EP(5x5). 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",
"gd32f350k8u6",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "GD32F350K8U6",
"manufacturer": "GigaDevice Semicon Beijing",
"package": "QFN-32-EP(5x5)",
"pin_count": 33,
"category": "Embedded Processors & Controllers",
"subcategory": "Microcontrollers (MCU/MPU/SOC)",
"datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588902959732572160",
"parts": {
"symbol": "gd32f350k8u6.kicad_sym",
"footprint": "gd32f350k8u6.kicad_mod",
"model_3d": "gd32f350k8u6-hero.glb",
"model_3d_plain": "gd32f350k8u6-etched.glb",
"model_3d_step": "gd32f350k8u6-etched.step",
"model_3d_step_plain": "gd32f350k8u6.step",
"lbr": "gd32f350k8u6.lbr"
},
"distributor_links": {
"lcsc": "C2688744"
},
"distributor_check": {
"checked_at": "2026-10-19T00:14:19Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": null,
"status": "no match"
},
"mouser": {
"pn": null,
"status": "no match"
}
},
"pins": [
{
"number": "1",
"name": "VDD",
"type": "power_in",
"description": "Digital power supply pin (default function VDD); the provided text gives no voltage limits for this pin."
},
{
"number": "2",
"name": "PF0-OSCIN",
"type": "bidirectional",
"description": "5 V tolerant GPIO PF0 with alternate CTC_SYNC and additional function OSCIN (external oscillator input)."
},
{
"number": "3",
"name": "PF1-OSCOUT",
"type": "bidirectional",
"description": "5 V tolerant GPIO PF1 with additional function OSCOUT (external oscillator output)."
},
{
"number": "4",
"name": "NRST",
"type": "bidirectional",
"description": "Reset pin, default function NRST; the datasheet lists its I/O type as I/O."
},
{
"number": "5",
"name": "VDDA",
"type": "power_in",
"description": "Analog power supply pin (default function VDDA); the provided text gives no voltage limits for this pin."
},
{
"number": "6",
"name": "PA0-WKUP",
"type": "bidirectional",
"description": "Standard (non-5 V tolerant) GPIO PA0 with wake-up function WKUP0; alternates USART1_CTS, TIMER1_CH0, TIMER1_ETI, CMP0_OUT, TSI_G0_IO0, I2C1_SCL; additional ADC_IN0, CMP0_IM6, RTC_TAMP1."
},
{
"number": "7",
"name": "PA1",
"type": "bidirectional",
"description": "Standard (non-5 V tolerant) GPIO PA1; alternates USART1_RTS, TIMER1_CH1, TSI_G0_IO1, I2C1_SDA, EVENTOUT; additional ADC_IN1 and CMP0_IP."
},
{
"number": "8",
"name": "PA2",
"type": "bidirectional",
"description": "Standard (non-5 V tolerant) GPIO PA2; alternates USART1_TX, TIMER1_CH2, TIMER14_CH0, CMP1_OUT, TSI_G0_IO2; additional ADC_IN2 and CMP1_IM6."
},
{
"number": "9",
"name": "PA3",
"type": "bidirectional",
"description": "Standard (non-5 V tolerant) GPIO PA3; alternates USART1_RX, TIMER1_CH3, TIMER14_CH1, TSI_G0_IO3; additional ADC_IN3 and CMP1_IP."
},
{
"number": "10",
"name": "PA4",
"type": "bidirectional",
"description": "Standard (non-5 V tolerant) GPIO PA4; alternates SPI0_NSS/I2S0_WS, USART1_CK, TIMER13_CH0, TSI_G1_IO0, SPI1_NSS; additional ADC_IN4, CMP0_IM4, CMP1_IM4 and DAC0_OUT."
},
{
"number": "11",
"name": "PA5",
"type": "bidirectional",
"description": "Standard (non-5 V tolerant) GPIO PA5; alternates SPI0_SCK/I2S0_CK, CEC, TIMER1_CH0, TIMER1_ETI, TSI_G1_IO1; additional ADC_IN5, CMP0_IM5 and CMP1_IM5."
},
{
"number": "12",
"name": "PA6",
"type": "bidirectional",
"description": "Standard (non-5 V tolerant) GPIO PA6; alternates SPI0_MISO/I2S0_MCK, TIMER2_CH0, TIMER0_BKIN, TIMER15_CH0, CMP0_OUT, TSI_G1_IO2, EVENTOUT; additional ADC_IN6."
},
{
"number": "13",
"name": "PA7",
"type": "bidirectional",
"description": "Standard (non-5 V tolerant) GPIO PA7; alternates SPI0_MOSI/I2S0_SD, TIMER2_CH1, TIMER13_CH0, TIMER0_CH0_ON, TIMER16_CH0, CMP1_OUT, TSI_G1_IO3, EVENTOUT; additional ADC_IN7."
},
{
"number": "14",
"name": "PB0",
"type": "bidirectional",
"description": "Standard (non-5 V tolerant) GPIO PB0; alternates TIMER2_CH2, TIMER0_CH1_ON, TSI_G2_IO1, USART1_RX, EVENTOUT; additional ADC_IN8."
},
{
"number": "15",
"name": "PB1",
"type": "bidirectional",
"description": "Standard (non-5 V tolerant) GPIO PB1; alternates TIMER2_CH3, TIMER13_CH0, TIMER0_CH2_ON, TSI_G2_IO2, SPI1_SCK; additional ADC_IN9."
},
{
"number": "16",
"name": "PB2",
"type": "bidirectional",
"description": "5 V tolerant GPIO PB2 with alternate function TSI_G2_IO3."
},
{
"number": "17",
"name": "VDD",
"type": "power_in",
"description": "Digital power supply pin (default function VDD); the provided text gives no voltage limits for this pin."
},
{
"number": "18",
"name": "PA8",
"type": "bidirectional",
"description": "5 V tolerant GPIO PA8; alternates USART0_CK, TIMER0_CH0, CK_OUT, USART1_TX, EVENTOUT, USBFS_SOF and CTC_SYNC."
},
{
"number": "19",
"name": "PA9",
"type": "bidirectional",
"description": "5 V tolerant GPIO PA9; alternates USART0_TX, TIMER0_CH1, TIMER14_BKIN, TSI_G3_IO0, I2C0_SCL and USBFS_VBUS."
},
{
"number": "20",
"name": "PA10",
"type": "bidirectional",
"description": "5 V tolerant GPIO PA10; alternates USART0_RX, TIMER0_CH2, TIMER16_BKIN, TSI_G3_IO1, I2C0_SDA and USBFS_ID."
},
{
"number": "21",
"name": "PA11",
"type": "bidirectional",
"description": "5 V tolerant GPIO PA11; alternates USART0_CTS, TIMER0_CH3, CMP0_OUT, TSI_G3_IO2, EVENTOUT and SPI1_IO2; additional function USBFS_DM."
},
{
"number": "22",
"name": "PA12",
"type": "bidirectional",
"description": "5 V tolerant GPIO PA12; alternates USART0_RTS, TIMER0_ETI, CMP1_OUT, TSI_G3_IO3, EVENTOUT and SPI1_IO3; additional function USBFS_DP."
},
{
"number": "23",
"name": "PA13",
"type": "bidirectional",
"description": "5 V tolerant GPIO PA13; alternates IFRP_OUT, SWDIO and SPI1_MISO."
},
{
"number": "24",
"name": "PA14",
"type": "bidirectional",
"description": "5 V tolerant GPIO PA14; alternates USART1_TX, SWCLK and SPI1_MOSI."
},
{
"number": "25",
"name": "PA15",
"type": "bidirectional",
"description": "5 V tolerant GPIO PA15; alternates SPI0_NSS/I2S0_WS, USART1_RX, TIMER1_CH0, TIMER1_ETI, SPI1_NSS and EVENTOUT."
},
{
"number": "26",
"name": "PB3",
"type": "bidirectional",
"description": "5 V tolerant GPIO PB3; alternates SPI0_SCK/I2S0_CK, TIMER1_CH1, TSI_G4_IO0 and EVENTOUT."
},
{
"number": "27",
"name": "PB4",
"type": "bidirectional",
"description": "5 V tolerant GPIO PB4; alternates SPI0_MISO/I2S0_MCK, TIMER2_CH0, TSI_G4_IO1 and EVENTOUT."
},
{
"number": "28",
"name": "PB5",
"type": "bidirectional",
"description": "5 V tolerant GPIO PB5 with wake-up function WKUP5; alternates SPI0_MOSI/I2S0_SD, I2C0_SMBA, TIMER15_BKIN and TIMER2_CH1."
},
{
"number": "29",
"name": "PB6",
"type": "bidirectional",
"description": "5 V tolerant GPIO PB6; alternates I2C0_SCL, USART0_TX, TIMER15_CH0_ON and TSI_G4_IO2."
},
{
"number": "30",
"name": "PB7",
"type": "bidirectional",
"description": "5 V tolerant GPIO PB7; alternates I2C0_SDA, USART0_RX, TIMER16_CH0_ON and TSI_G4_IO3."
},
{
"number": "31",
"name": "BOOT0",
"type": "input",
"description": "Boot pin, default function BOOT0, which selects the boot mode (see section 3.4 Boot modes)."
},
{
"number": "32",
"name": "PB8",
"type": "bidirectional",
"description": "5 V tolerant GPIO PB8; alternates I2C0_SCL, CEC, TIMER15_CH0 and TSITG."
},
{
"number": "33",
"name": "EP",
"type": "passive",
"description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
}
],
"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: Exposed thermal pad: Figure 2-4 labels the bottom net 'VSS, VSSA', but Table 2-5 (QFN32 pin definiti; Footnote (3) in Table 2-5 says the marked alternates (USART0_CTS, USART0_RTS, USART0_TX, USART0_RX, ; Package size is not confirmed from the extract. The ordering table (Table 6-1) gives QFN32 for GD32F",
"exposed pad 33 added from the footprint"
],
"pages_sent": 36,
"cost_usd": 0.1792,
"at": "2026-10-19T00:12:25"
},
"datasheet": {
"url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588902959732572160",
"pages": 77,
"sha256": "5ff2eb8e6cbd736d",
"source_tier": "lcsc"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 33,
"described": 33,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
},
"models_3d": [
{
"file": "gd32f350k8u6.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
5,
5,
0.875
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "5fa713ea46b36980895812ed853577889b7cb06d275041a39b99bc0be305dc79",
"checked": "2026-10-19",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "gd32f350k8u6-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
5,
5,
0.875
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "05200125ba14fb15eee6df054d6ab7fb6cd56ca5bef49d30b65288d56c4a6ee4",
"checked": "2026-10-19",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
},
"metadata": {
"specs": {
"Manufacturer": "GigaDevice Semicon Beijing",
"Package": "QFN-32-EP(5x5)",
"Category": "Embedded Processors & Controllers",
"Pins": "33"
},
"characteristics": {
"version": 1,
"source": "datasheet",
"datasheet_sha256": "5ff2eb8e6cbd736d02cd4ff0183bdd4082bd617d62ea09ebadee37fadb288cc9",
"rows": [
{
"name": "Absolute maximum VDD external voltage range (min offset from VSS; max offset from VSS)",
"symbol": "VDD",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 3.6,
"conditions": "",
"source_page": 44,
"source": "datasheet"
},
{
"name": "Absolute maximum external analog supply voltage (min offset from VSSA; max offset from VSSA)",
"symbol": "VDDA",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 3.6,
"conditions": "",
"source_page": 44,
"source": "datasheet"
},
{
"name": "Absolute maximum external battery supply voltage (min offset from VSS; max offset from VSS)",
"symbol": "VBAT",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 3.6,
"conditions": "",
"source_page": 44,
"source": "datasheet"
},
{
"name": "Input voltage on 5V tolerant pin (max printed as VDD + 3.6 V, given as offset)",
"symbol": "VIN",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 3.6,
"conditions": "5V tolerant pin; VIN maximum value cannot exceed 6.5 V",
"source_page": 44,
"source": "datasheet"
},
{
"name": "Input voltage on other I/O",
"symbol": "VIN",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 3.6,
"conditions": "",
"source_page": 44,
"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": 44,
"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": 44,
"source": "datasheet"
},
{
"name": "Maximum current for GPIO pin",
"symbol": "IIO",
"kind": "absolute_maximum",
"unit": "mA",
"min": -25,
"typ": null,
"max": 25,
"conditions": "",
"source_page": 44,
"source": "datasheet"
},
{
"name": "Operating temperature range",
"symbol": "TA",
"kind": "absolute_maximum",
"unit": "°C",
"min": -40,
"typ": null,
"max": 85,
"conditions": "",
"source_page": 44,
"source": "datasheet"
},
{
"name": "Storage temperature range",
"symbol": "TSTG",
"kind": "absolute_maximum",
"unit": "°C",
"min": -55,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 44,
"source": "datasheet"
},
{
"name": "Maximum junction temperature",
"symbol": "TJ",
"kind": "absolute_maximum",
"unit": "°C",
"min": null,
"typ": null,
"max": 125,
"conditions": "",
"source_page": 44,
"source": "datasheet"
},
{
"name": "Supply voltage",
"symbol": "VDD",
"kind": "recommended_operating",
"unit": "V",
"min": 2.6,
"typ": 3.3,
"max": 3.6,
"conditions": "",
"source_page": 44,
"source": "datasheet"
},
{
"name": "Analog supply voltage",
"symbol": "VDDA",
"kind": "recommended_operating",
"unit": "V",
"min": 2.6,
"typ": 3.3,
"max": 3.6,
"conditions": "Same as VDD",
"source_page": 44,
"source": "datasheet"
},
{
"name": "Battery supply voltage",
"symbol": "VBAT",
"kind": "recommended_operating",
"unit": "V",
"min": 1.8,
"typ": null,
"max": 3.6,
"conditions": "",
"source_page": 44,
"source": "datasheet"
},
{
"name": "AHB1 clock frequency",
"symbol": "fHCLK1",
"kind": "recommended_operating",
"unit": "MHz",
"min": 0,
"typ": null,
"max": 108,
"conditions": "",
"source_page": 45,
"source": "datasheet"
},
{
"name": "APB1 clock frequency",
"symbol": "fAPB1",
"kind": "recommended_operating",
"unit": "MHz",
"min": 0,
"typ": null,
"max": 54,
"conditions": "",
"source_page": 45,
"source": "datasheet"
},
{
"name": "VDD rise time rate (max printed as ∞)",
"symbol": "tVDD",
"kind": "recommended_operating",
"unit": "μs /V",
"min": 0,
"typ": null,
"max": null,
"conditions": "",
"source_page": 45,
"source": "datasheet"
},
{
"name": "VDD fall time rate (max printed as ∞)",
"symbol": "tVDD",
"kind": "recommended_operating",
"unit": "μs /V",
"min": 20,
"typ": null,
"max": null,
"conditions": "",
"source_page": 45,
"source": "datasheet"
},
{
"name": "NRST Input low level voltage (min -0.5 V; max printed as 0.3 VDD)",
"symbol": "VIL(NRST)",
"kind": "electrical",
"unit": "V / ×VDD",
"min": -0.5,
"typ": null,
"max": 0.3,
"conditions": "2.6 V ≤ VDD = VDDA ≤ 3.6 V",
"source_page": 59,
"source": "datasheet"
},
{
"name": "NRST Input high level voltage (min printed as 0.7 VDD; max printed as VDD + 0.5)",
"symbol": "VIH(NRST)",
"kind": "electrical",
"unit": "×VDD / V",
"min": 0.7,
"typ": null,
"max": 0.5,
"conditions": "",
"source_page": 59,
"source": "datasheet"
},
{
"name": "Standard IO Low level input voltage (max printed as 0.3 VDD)",
"symbol": "VIL",
"kind": "electrical",
"unit": "×VDD",
"min": null,
"typ": null,
"max": 0.3,
"conditions": "2.6 V ≤ VDD = VDDA ≤ 3.6 V",
"source_page": 61,
"source": "datasheet"
},
{
"name": "5V-tolerant IO Low level input voltage (max printed as 0.3 VDD)",
"symbol": "VIL",
"kind": "electrical",
"unit": "×VDD",
"min": null,
"typ": null,
"max": 0.3,
"conditions": "2.6 V ≤ VDD = VDDA ≤ 3.6 V",
"source_page": 61,
"source": "datasheet"
},
{
"name": "Standard IO High level input voltage (min printed as 0.7 VDD)",
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