component
M031LD2AE
Public Made by Adomby adom
Nuvoton Tech 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": "m031ld2ae",
"title": "M031LD2AE",
"brief": "Nuvoton Tech 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",
"m031ld2ae",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "M031LD2AE",
"manufacturer": "Nuvoton Tech",
"package": "LQFP-48(7x7)",
"pin_count": 48,
"category": "Embedded Processors & Controllers",
"subcategory": "Microcontrollers (MCU/MPU/SOC)",
"datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588886690824273920",
"parts": {
"symbol": "m031ld2ae.kicad_sym",
"footprint": "m031ld2ae.kicad_mod",
"model_3d": "m031ld2ae-hero.glb",
"model_3d_plain": "m031ld2ae-etched.glb",
"model_3d_step": "m031ld2ae-etched.step",
"model_3d_step_plain": "m031ld2ae.step",
"lbr": "m031ld2ae.lbr"
},
"distributor_links": {
"lcsc": "C841531"
},
"distributor_check": {
"checked_at": "2026-10-18T19:17:06Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": null,
"status": "quota"
},
"mouser": {
"pn": null,
"status": "quota"
}
},
"pins": [
{
"number": "1",
"name": "PB.5",
"type": "bidirectional",
"description": "GPIO port B pin 5 with multi-function alternates ADC0_CH5, ACMP1_N, I2C0_SCL, PWM0_CH0, UART2_TXD, TM0 and INT0."
},
{
"number": "2",
"name": "PB.4",
"type": "bidirectional",
"description": "GPIO port B pin 4 with multi-function alternates ADC0_CH4, ACMP1_P1, I2C0_SDA, PWM0_CH1, UART2_RXD, TM1 and INT1."
},
{
"number": "3",
"name": "PB.3",
"type": "bidirectional",
"description": "GPIO port B pin 3 with multi-function alternates ADC0_CH3, ACMP0_N, I2C1_SCL, UART1_TXD, PWM0_CH2, PWM0_BRAKE0, TM2 and INT2."
},
{
"number": "4",
"name": "PB.2",
"type": "bidirectional",
"description": "GPIO port B pin 2 with multi-function alternates ADC0_CH2, ACMP0_P1, I2C1_SDA, UART1_RXD, PWM0_CH3, TM3 and INT3."
},
{
"number": "5",
"name": "PB.1",
"type": "bidirectional",
"description": "GPIO port B pin 1 with multi-function alternates ADC0_CH1, UART2_TXD, I2C1_SCL, PWM0_CH4, PWM1_CH4 and PWM0_BRAKE0."
},
{
"number": "6",
"name": "PB.0",
"type": "bidirectional",
"description": "GPIO port B pin 0 with multi-function alternates ADC0_CH0, UART2_RXD, SPI0_I2SMCLK, I2C1_SDA, PWM0_CH5, PWM1_CH5 and PWM0_BRAKE1."
},
{
"number": "7",
"name": "PA.11",
"type": "bidirectional",
"description": "GPIO port A pin 11 with multi-function alternates ACMP0_P0, USCI0_CLK and TM0_EXT."
},
{
"number": "8",
"name": "PA.10",
"type": "bidirectional",
"description": "GPIO port A pin 10 with multi-function alternates ACMP1_P0, USCI0_DAT0 and TM1_EXT."
},
{
"number": "9",
"name": "PA.9",
"type": "bidirectional",
"description": "GPIO port A pin 9 with multi-function alternates USCI0_DAT1, UART1_TXD and TM2_EXT."
},
{
"number": "10",
"name": "PA.8",
"type": "bidirectional",
"description": "GPIO port A pin 8 with multi-function alternates USCI0_CTL1, UART1_RXD, TM3_EXT and INT4."
},
{
"number": "11",
"name": "PF.5",
"type": "bidirectional",
"description": "GPIO port F pin 5 with multi-function alternates UART2_RXD, UART2_nCTS, PWM0_CH0, X32_IN (32 kHz crystal input) and ADC0_ST."
},
{
"number": "12",
"name": "PF.4",
"type": "bidirectional",
"description": "GPIO port F pin 4 with multi-function alternates UART2_TXD, UART2_nRTS, PWM0_CH1 and X32_OUT (32 kHz crystal output)."
},
{
"number": "13",
"name": "PF.3",
"type": "bidirectional",
"description": "GPIO port F pin 3 with multi-function alternates UART0_TXD, I2C0_SCL and XT1_IN (external crystal input)."
},
{
"number": "14",
"name": "PF.2",
"type": "bidirectional",
"description": "GPIO port F pin 2 with multi-function alternates UART0_RXD, I2C0_SDA and XT1_OUT (external crystal output)."
},
{
"number": "15",
"name": "PA.7",
"type": "bidirectional",
"description": "GPIO port A pin 7 with multi-function alternates UART0_TXD, I2C1_SCL, PWM1_CH4, ACMP0_WLAT, TM2 and INT1."
},
{
"number": "16",
"name": "PA.6",
"type": "bidirectional",
"description": "GPIO port A pin 6 with multi-function alternates UART0_RXD, I2C1_SDA, PWM1_CH5, ACMP1_WLAT, TM3 and INT0."
},
{
"number": "17",
"name": "PA.5",
"type": "bidirectional",
"description": "GPIO port A pin 5 with multi-function alternates UART0_nCTS, UART0_TXD, I2C0_SCL and PWM0_CH0."
},
{
"number": "18",
"name": "PA.4",
"type": "bidirectional",
"description": "GPIO port A pin 4 with multi-function alternates SPI0_I2SMCLK, UART0_nRTS, UART0_RXD, I2C0_SDA and PWM0_CH1."
},
{
"number": "19",
"name": "PA.3",
"type": "bidirectional",
"description": "GPIO port A pin 3 with multi-function alternates SPI0_SS, UART1_TXD, I2C1_SCL, PWM0_CH2, CLKO and PWM1_BRAKE1."
},
{
"number": "20",
"name": "PA.2",
"type": "bidirectional",
"description": "GPIO port A pin 2 with multi-function alternates SPI0_CLK, UART1_RXD, I2C1_SDA and PWM0_CH3."
},
{
"number": "21",
"name": "PA.1",
"type": "bidirectional",
"description": "GPIO port A pin 1 with multi-function alternates SPI0_MISO, UART0_TXD, UART1_nCTS and PWM0_CH4."
},
{
"number": "22",
"name": "PA.0",
"type": "bidirectional",
"description": "GPIO port A pin 0 with multi-function alternates SPI0_MOSI, UART0_RXD, UART1_nRTS and PWM0_CH5."
},
{
"number": "23",
"name": "PF.15",
"type": "bidirectional",
"description": "GPIO port F pin 15 with multi-function alternates PWM0_BRAKE0, PWM0_CH1, TM2, CLKO and INT4."
},
{
"number": "24",
"name": "nRESET",
"type": "input",
"description": "External active-low reset input for the MCU."
},
{
"number": "25",
"name": "PF.0",
"type": "bidirectional",
"description": "GPIO port F pin 0 with multi-function alternates UART1_TXD, I2C1_SCL, UART0_TXD and ICE_DAT (ICE data)."
},
{
"number": "26",
"name": "PF.1",
"type": "bidirectional",
"description": "GPIO port F pin 1 with multi-function alternates UART1_RXD, I2C1_SDA, UART0_RXD and ICE_CLK (ICE clock)."
},
{
"number": "27",
"name": "PC.5",
"type": "bidirectional",
"description": "GPIO port C pin 5 with multi-function alternates UART2_TXD, I2C1_SCL and PWM1_CH0."
},
{
"number": "28",
"name": "PC.4",
"type": "bidirectional",
"description": "GPIO port C pin 4 with multi-function alternates UART2_RXD, I2C1_SDA and PWM1_CH1."
},
{
"number": "29",
"name": "PC.3",
"type": "bidirectional",
"description": "GPIO port C pin 3 with multi-function alternates UART2_nRTS and PWM1_CH2."
},
{
"number": "30",
"name": "PC.2",
"type": "bidirectional",
"description": "GPIO port C pin 2 with multi-function alternates UART2_nCTS and PWM1_CH3."
},
{
"number": "31",
"name": "PC.1",
"type": "bidirectional",
"description": "GPIO port C pin 1 with multi-function alternates UART2_TXD, I2C0_SCL, PWM1_CH4 and ACMP0_O."
},
{
"number": "32",
"name": "PC.0",
"type": "bidirectional",
"description": "GPIO port C pin 0 with multi-function alternates UART2_RXD, I2C0_SDA, PWM1_CH5 and ACMP1_O."
},
{
"number": "33",
"name": "PA.12",
"type": "bidirectional",
"description": "GPIO port A pin 12 with multi-function alternate I2C1_SCL."
},
{
"number": "34",
"name": "PA.13",
"type": "bidirectional",
"description": "GPIO port A pin 13 with multi-function alternate I2C1_SDA."
},
{
"number": "35",
"name": "PA.14",
"type": "bidirectional",
"description": "GPIO port A pin 14 with multi-function alternate UART0_TXD."
},
{
"number": "36",
"name": "PA.15",
"type": "bidirectional",
"description": "GPIO port A pin 15 with multi-function alternate UART0_RXD."
},
{
"number": "37",
"name": "VSS",
"type": "power_in",
"description": "Ground reference for the digital core and I/O."
},
{
"number": "38",
"name": "LDO_CAP",
"type": "power_out",
"description": "Internal LDO output pin that requires an external capacitor; the capacitor value is not given in this excerpt."
},
{
"number": "39",
"name": "VDD",
"type": "power_in",
"description": "Digital supply input for the MCU."
},
{
"number": "40",
"name": "PC.14",
"type": "bidirectional",
"description": "GPIO port C pin 14 with multi-function alternates SPI0_I2SMCLK, USCI0_CTL0 and TM1."
},
{
"number": "41",
"name": "PB.15",
"type": "bidirectional",
"description": "GPIO port B pin 15 with multi-function alternates ADC0_CH15, SPI0_SS, USCI0_CTL1, UART0_nCTS, PWM1_CH0, TM0_EXT and PWM0_BRAKE1."
},
{
"number": "42",
"name": "PB.14",
"type": "bidirectional",
"description": "GPIO port B pin 14 with multi-function alternates ADC0_CH14, SPI0_CLK, USCI0_DAT1, UART0_nRTS, PWM1_CH1, TM1_EXT and CLKO."
},
{
"number": "43",
"name": "PB.13",
"type": "bidirectional",
"description": "GPIO port B pin 13 with multi-function alternates ADC0_CH13, ACMP0_P3, ACMP1_P3, SPI0_MISO, USCI0_DAT0, UART0_TXD, PWM1_CH2 and TM2_EXT."
},
{
"number": "44",
"name": "PB.12",
"type": "bidirectional",
"description": "GPIO port B pin 12 with multi-function alternates ADC0_CH12, ACMP0_P2, ACMP1_P2, SPI0_MOSI, USCI0_CLK, UART0_RXD, PWM1_CH3 and TM3_EXT."
},
{
"number": "45",
"name": "AVDD",
"type": "power_in",
"description": "Analog supply input for the ADC and analog peripherals."
},
{
"number": "46",
"name": "AVSS",
"type": "power_in",
"description": "Analog ground for the ADC and analog peripherals."
},
{
"number": "47",
"name": "PB.7",
"type": "bidirectional",
"description": "GPIO port B pin 7 with multi-function alternates ADC0_CH7, UART1_TXD, PWM1_BRAKE0, PWM1_CH4, INT5 and ACMP0_O."
},
{
"number": "48",
"name": "PB.6",
"type": "bidirectional",
"description": "GPIO port B pin 6 with multi-function alternates ADC0_CH6, UART1_RXD, PWM1_BRAKE1, PWM1_CH5, INT4 and ACMP1_O."
}
],
"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: Pinout taken from the M031LD2AE-specific Table 4.1-9 and Figure 4.1-15 (LQFP48) on pages 53-55. The ; The excerpt gives only pin names and multi-function alternates, not electrical limits per pin. Descr; Types are KiCad-style inferences from pin names. GPIO pins are marked bidirectional. LDO_CAP is mark"
],
"pages_sent": 100,
"cost_usd": 0.9799,
"at": "2026-10-18T19:14:55"
},
"datasheet": {
"url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588886690824273920",
"pages": 283,
"sha256": "1a8a8f8110d5e2e0",
"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": "m031ld2ae.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": "2026-10-18",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "m031ld2ae-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": "f12a6d62ccd1e6cb0f846574d005388eefe8aa808f34055bc8ef3c2b68567cf6",
"checked": "2026-10-18",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
},
"metadata": {
"specs": {
"Manufacturer": "Nuvoton Tech",
"Package": "LQFP-48(7x7)",
"Category": "Embedded Processors & Controllers",
"Pins": "48"
},
"characteristics": {
"version": 1,
"source": "datasheet",
"datasheet_sha256": "1a8a8f8110d5e2e08ca08f6be75a18b862bd665a4c408cfd1c978f05a19e353c",
"rows": [
{
"name": "DC power supply (VDD-VSS)",
"symbol": "VDD-VSS",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 4,
"conditions": "",
"source_page": 228,
"source": "datasheet"
},
{
"name": "Input voltage on 5V-tolerance I/O",
"symbol": "VIN",
"kind": "absolute_maximum",
"unit": "V",
"min": null,
"typ": null,
"max": 5.5,
"conditions": "",
"source_page": 228,
"source": "datasheet"
},
{
"name": "Input voltage on any other pin",
"symbol": "VIN",
"kind": "absolute_maximum",
"unit": "V",
"min": null,
"typ": null,
"max": 4,
"conditions": "",
"source_page": 228,
"source": "datasheet"
},
{
"name": "Maximum current into VDD",
"symbol": "ΣIDD",
"kind": "absolute_maximum",
"unit": "mA",
"min": null,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 228,
"source": "datasheet"
},
{
"name": "Maximum current out of VSS",
"symbol": "ΣISS",
"kind": "absolute_maximum",
"unit": "mA",
"min": null,
"typ": null,
"max": 100,
"conditions": "",
"source_page": 228,
"source": "datasheet"
},
{
"name": "Maximum current sunk by a I/O pin",
"symbol": "IIO",
"kind": "absolute_maximum",
"unit": "mA",
"min": null,
"typ": null,
"max": 20,
"conditions": "",
"source_page": 228,
"source": "datasheet"
},
{
"name": "Maximum current sourced by a I/O pin",
"symbol": "IIO",
"kind": "absolute_maximum",
"unit": "mA",
"min": null,
"typ": null,
"max": 20,
"conditions": "",
"source_page": 228,
"source": "datasheet"
},
{
"name": "Maximum current sunk by total I/O pins",
"symbol": "",
"kind": "absolute_maximum",
"unit": "mA",
"min": null,
"typ": null,
"max": 100,
"conditions": "",
"source_page": 228,
"source": "datasheet"
},
{
"name": "Maximum current sourced by total I/O pins",
"symbol": "",
"kind": "absolute_maximum",
"unit": "mA",
"min": null,
"typ": null,
"max": 100,
"conditions": "",
"source_page": 228,
"source": "datasheet"
},
{
"name": "Maximum injected current by a I/O pin",
"symbol": "IINJ(PIN)",
"kind": "absolute_maximum",
"unit": "mA",
"min": -5,
"typ": null,
"max": 5,
"conditions": "",
"source_page": 228,
"source": "datasheet"
},
{
"name": "Maximum injected current by total I/O pins",
"symbol": "ΣIINJ(PIN)",
"kind": "absolute_maximum",
"unit": "mA",
"min": -25,
"typ": null,
"max": 25,
"conditions": "",
"source_page": 228,
"source": "datasheet"
},
{
"name": "Electrostatic discharge, human body mode",
"symbol": "VHBM",
"kind": "absolute_maximum",
"unit": "V",
"min": -6000,
"typ": null,
"max": 6000,
"conditions": "ANSI/ESDA/JEDEC JS-001 (M03xB/C/D/E table)",
"source_page": 231,
"source": "datasheet"
},
{
"name": "Electrostatic discharge, charge device model",
"symbol": "VCDM",
"kind": "absolute_maximum",
"unit": "V",
"min": -1000,
"typ": null,
"max": 1000,
"conditions": "ANSI/ESDA/JEDEC JS-002 (M03xB/C/D/E table)",
"source_page": 231,
"source": "datasheet"
},
{
"name": "Pin current for latch-up",
"symbol": "LU",
"kind": "absolute_maximum",
"unit": "mA",
"min": -400,
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