component
N32L406CBL7
Public Made by Adomby adom
Nations Technologies Inc 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": "n32l406cbl7",
"title": "N32L406CBL7",
"brief": "Nations Technologies Inc 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",
"n32l406cbl7",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "N32L406CBL7",
"manufacturer": "Nations Technologies Inc",
"package": "LQFP-48(7x7)",
"pin_count": 48,
"category": "Embedded Processors & Controllers",
"subcategory": "Microcontrollers (MCU/MPU/SOC)",
"datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589040211338661889",
"parts": {
"symbol": "n32l406cbl7.kicad_sym",
"footprint": "n32l406cbl7.kicad_mod",
"model_3d": "n32l406cbl7-hero.glb",
"model_3d_plain": "n32l406cbl7-etched.glb",
"model_3d_step": "n32l406cbl7-etched.step",
"model_3d_step_plain": "n32l406cbl7.step",
"lbr": "n32l406cbl7.lbr"
},
"distributor_links": {
"lcsc": "C2981444"
},
"distributor_check": {
"checked_at": "2026-10-18T19:32:28Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": null,
"status": "quota"
},
"mouser": {
"pn": null,
"status": "quota"
}
},
"pins": [
{
"number": "1",
"name": "VLCD",
"type": "power_in",
"description": "Segment LCD supply pin; it can be driven from an external supply (connect VLCD to VDD) or used with the internal boost converter, which requires a 1 µF capacitor on VLCD."
},
{
"number": "2",
"name": "PC13-TAMPER-RTC",
"type": "bidirectional",
"description": "Fail-safe 3.3V standard I/O that can only sink limited current (3 mA); as an output it allows only one such pin at a time, 2 MHz mode, 30 pF maximum load and no current-source use. Alternates include TIM1_CH1N, LCD_SEG35, TAMP1-RTC, RTC_OUT and WKUP2."
},
{
"number": "3",
"name": "PC14-OSC32_IN",
"type": "bidirectional",
"description": "Fail-safe 3.3V standard I/O with the same 3 mA and output restrictions as PC13; it serves as the LSE 32.768 kHz oscillator input (OSC32_IN)."
},
{
"number": "4",
"name": "PC15-OSC32_OUT",
"type": "bidirectional",
"description": "Fail-safe 3.3V standard I/O with the same 3 mA and output restrictions as PC13; it serves as the LSE 32.768 kHz oscillator output (OSC32_OUT)."
},
{
"number": "5",
"name": "PD14-OSC_IN",
"type": "bidirectional",
"description": "3.3V standard I/O, not fail-safe; it serves as the HSE 4-32 MHz oscillator input (OSC_IN) and also carries USART2_TX, I2C2_SDA and TIM1_CH3N."
},
{
"number": "6",
"name": "PD15-OSC_OUT",
"type": "bidirectional",
"description": "3.3V standard I/O, not fail-safe; it serves as the HSE oscillator output (OSC_OUT) and also carries USART2_RX and I2C2_SCL."
},
{
"number": "7",
"name": "NRST",
"type": "input",
"description": "Reset input with a non-disconnectable internal pull-up of 40-60 kΩ at 3.3 V; input filter pulses under 100 ns are ignored and pulses over 300 ns are not filtered."
},
{
"number": "8",
"name": "VSSA",
"type": "power_in",
"description": "Ground for the analog section (ADC, DAC, OPAMP, COMP, TSC), which must be connected to VSS; also serves as the VREF- reference ground."
},
{
"number": "9",
"name": "VDDA",
"type": "power_in",
"description": "Analog supply for ADC, DAC, OPAMP, COMP and TSC, 1.8-3.6 V, which must be the same supply as VDD (at most 300 mV difference during power-up and operation); also serves as VREF+."
},
{
"number": "10",
"name": "PA0",
"type": "bidirectional",
"description": "Fail-safe 3.3V standard I/O with ADC_IN1, COMP1_OUT, WKUP1 and TIM2_CH1/TIM5_CH1 alternate functions."
},
{
"number": "11",
"name": "PA1",
"type": "bidirectional",
"description": "Fail-safe 3.3V standard I/O with ADC1_IN2, LCD_SEG0, LPUART_TX and TIM5_CH2 alternate functions."
},
{
"number": "12",
"name": "PA2",
"type": "bidirectional",
"description": "Fail-safe 3.3V standard I/O with ADC_IN3, COMP2_OUT, LCD_SEG1, TSC_CH1 and USART2_TX alternate functions."
},
{
"number": "13",
"name": "PA3",
"type": "bidirectional",
"description": "Fail-safe 3.3V standard I/O with ADC_IN4, LCD_SEG2, USART2_RX and TSC_CH4 alternate functions."
},
{
"number": "14",
"name": "PA4",
"type": "bidirectional",
"description": "3.3V standard I/O, not fail-safe; carries ADC_IN5, DAC_OUT, USART2_CK, SPI1_NSS and I2S1_WS alternate functions."
},
{
"number": "15",
"name": "PA5",
"type": "bidirectional",
"description": "Fail-safe 3.3V standard I/O with ADC_IN6, SPI1_SCK, I2S1_CK, USART1_RX and TSC_CH6 alternate functions."
},
{
"number": "16",
"name": "PA6",
"type": "bidirectional",
"description": "Fail-safe 3.3V standard I/O with ADC_IN7, SPI1_MISO, TIM3_CH1, TIM8_BKIN and LCD_SEG3 alternate functions."
},
{
"number": "17",
"name": "PA7",
"type": "bidirectional",
"description": "Fail-safe 3.3V standard I/O with ADC_IN8, SPI1_MOSI, TIM3_CH2, TIM1_CH1N and LCD_SEG4 alternate functions."
},
{
"number": "18",
"name": "PB0",
"type": "bidirectional",
"description": "Fail-safe 3.3V standard I/O with ADC_IN9, TIM3_CH3, TIM1_CH2N, LCD_SEG5 and TSC_CH7 alternate functions."
},
{
"number": "19",
"name": "PB1",
"type": "bidirectional",
"description": "Fail-safe 3.3V standard I/O with ADC_IN10, TIM3_CH4, LCD_SEG6, UART4_RX and TSC_CH8 alternate functions."
},
{
"number": "20",
"name": "PB2",
"type": "bidirectional",
"description": "Fail-safe 3.3V standard I/O with LPTIM_OUT, TIM9_ETR and TSC_CH9 alternate functions."
},
{
"number": "21",
"name": "PB10",
"type": "bidirectional",
"description": "Fail-safe 3.3V standard I/O with USART3_TX, LPUART_TX, I2C2_SCL, LCD_SEG10 and TSC_CH19 alternate functions."
},
{
"number": "22",
"name": "PB11",
"type": "bidirectional",
"description": "Fail-safe 3.3V standard I/O with USART3_RX, LPUART_RX, I2C2_SDA, LCD_SEG11 and TSC_CH10 alternate functions."
},
{
"number": "23",
"name": "VSS",
"type": "power_in",
"description": "Digital ground; must be connected to the external ground system."
},
{
"number": "24",
"name": "VDD",
"type": "power_in",
"description": "Digital supply for I/O pins and the internal regulator, 1.8-3.6 V."
},
{
"number": "25",
"name": "PB12",
"type": "bidirectional",
"description": "Fail-safe 3.3V standard I/O with SPI2_NSS, I2S2_WS, USART3_CK, TIM1_BKIN, LCD_SEG12 and TSC_CH11 alternate functions."
},
{
"number": "26",
"name": "PB13",
"type": "bidirectional",
"description": "Fail-safe 3.3V standard I/O with SPI2_SCK, I2S2_CK, USART3_CTS, TIM1_CH1N, LCD_SEG13 and TSC_CH16 alternate functions."
},
{
"number": "27",
"name": "PB14",
"type": "bidirectional",
"description": "Fail-safe 3.3V standard I/O with SPI2_MISO, I2S2_MCK, TIM1_CH2N, USART3_RTS, I2C2_SDA and OPAMP2_VINP alternate functions."
},
{
"number": "28",
"name": "PB15",
"type": "bidirectional",
"description": "Fail-safe 3.3V standard I/O with SPI2_MOSI, I2S2_SD, TIM1_CH3N, UART4_RX, LCD_SEG15 and TSC_CH15 alternate functions."
},
{
"number": "29",
"name": "PA8",
"type": "bidirectional",
"description": "Fail-safe 3.3V standard I/O with MCO, USART1_CK, TIM1_CH1, LCD_COM0, I2C2_SMBA and WKUP0 alternate functions."
},
{
"number": "30",
"name": "PA9",
"type": "bidirectional",
"description": "Fail-safe 3.3V standard I/O with USART1_TX, I2C2_SCL, TIM1_CH2 and LCD_COM1 alternate functions."
},
{
"number": "31",
"name": "PA10",
"type": "bidirectional",
"description": "Fail-safe 3.3V standard I/O with USART1_RX, I2C2_SDA, SPI1_SCK, TIM1_CH3 and LCD_COM2 alternate functions."
},
{
"number": "32",
"name": "PA11",
"type": "bidirectional",
"description": "3.3V standard I/O, not fail-safe; it serves as USB_DM (USB full-speed D-) on N32L403/N32L406 and also carries USART1_CTS, CAN_RX, TIM1_CH4 and COMP1_OUT."
},
{
"number": "33",
"name": "PA12",
"type": "bidirectional",
"description": "3.3V standard I/O, not fail-safe; it serves as USB_DP (USB full-speed D+) on N32L403/N32L406 and also carries USART1_RTS, CAN_TX, TIM1_ETR and COMP2_OUT."
},
{
"number": "34",
"name": "PA13",
"type": "bidirectional",
"description": "Fail-safe 3.3V standard I/O that is also the SWDIO-JTMS serial-wire debug data pin."
},
{
"number": "35",
"name": "VSS",
"type": "power_in",
"description": "Digital ground; must be connected to the external ground system."
},
{
"number": "36",
"name": "VDD",
"type": "power_in",
"description": "Digital supply for I/O pins and the internal regulator, 1.8-3.6 V."
},
{
"number": "37",
"name": "PA14",
"type": "bidirectional",
"description": "Fail-safe 3.3V standard I/O that is also the SWCLK-JTCK debug clock pin, with USART2_CK, I2C1_SDA and COMP2_OUT alternates."
},
{
"number": "38",
"name": "PA15",
"type": "bidirectional",
"description": "Fail-safe 3.3V standard I/O that is also the JTDI debug input, with USART2_CTS, SPI2_NSS, I2S2_WS, TIM2_CH1 and LCD_SEG17/LCD_COM3 alternates."
},
{
"number": "39",
"name": "PB3",
"type": "bidirectional",
"description": "Fail-safe 3.3V standard I/O that is also the JTDO-TRACESWO trace output, with SPI1_SCK, I2S1_CK, USART2_RTS, TIM2_CH2 and LCD_SEG7 alternates."
},
{
"number": "40",
"name": "PB4",
"type": "bidirectional",
"description": "Fail-safe 3.3V standard I/O with USART2_TX, SPI1_MISO, I2S1_MCK, TIM3_CH1, LCD_SEG8 and UART5_TX alternate functions."
},
{
"number": "41",
"name": "PB5",
"type": "bidirectional",
"description": "Fail-safe 3.3V standard I/O with USART2_RX, I2C1_SMBA, SPI1_MOSI, TIM3_CH2, LCD_SEG9, UART5_RX and LPTIM_IN1 alternate functions."
},
{
"number": "42",
"name": "PB6",
"type": "bidirectional",
"description": "Fail-safe 3.3V standard I/O with USART1_TX, LPUART_TX, I2C1_SCL, SPI1_NSS, TIM4_CH1 and LPTIM_ETR alternate functions."
},
{
"number": "43",
"name": "PB7",
"type": "bidirectional",
"description": "Fail-safe 3.3V standard I/O with USART1_RX, LPUART_RX, I2C1_SDA, TIM4_CH2, TSC_OUT, LPTIM_IN2 and PVD_IN alternate functions."
},
{
"number": "44",
"name": "BOOT0/PD0",
"type": "bidirectional",
"description": "Fail-safe 3.3V standard I/O that is the BOOT0 boot-mode select input, which has an input pull-down; it also carries TRACECK and LCD_SEG32."
},
{
"number": "45",
"name": "PB8",
"type": "bidirectional",
"description": "Fail-safe 3.3V standard I/O with I2C1_SCL, CAN_RX, TIM4_CH3, LCD_SEG16, USART1_TX, UART5_TX and COMP1_OUT alternate functions."
},
{
"number": "46",
"name": "PB9",
"type": "bidirectional",
"description": "Fail-safe 3.3V standard I/O with I2C1_SDA, CAN_TX, TIM4_CH4, LCD_COM3, UART5_RX and COMP2_OUT alternate functions."
},
{
"number": "47",
"name": "VSS",
"type": "power_in",
"description": "Digital ground; must be connected to the external ground system."
},
{
"number": "48",
"name": "VDD",
"type": "power_in",
"description": "Digital supply for I/O pins and the internal regulator, 1.8-3.6 V."
}
],
"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: Package variant choice: the MPN N32L406CBL7 is the N32L406 family, 48-pin, 128 KB flash, LQFP, -40~1; Pin-number alignment: the Table 3-1 text extraction lost column alignment, so the numeric columns ca; Table 3-1 gives the 48-pin column as QFN48 and does not separate LQFP48 from QFN48. The two 48-pin p"
],
"pages_sent": 90,
"cost_usd": 0.3364,
"at": "2026-10-18T19:30:14"
},
"datasheet": {
"url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589040211338661889",
"pages": 90,
"sha256": "5f82e78c0fff8967",
"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": "n32l406cbl7.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": "n32l406cbl7-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": "83498107737cd5969b9701fb7e0f1f3df0d65387313474fbba851a4d281d7f2f",
"checked": "2026-10-18",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
},
"metadata": {
"specs": {
"Manufacturer": "Nations Technologies Inc",
"Package": "LQFP-48(7x7)",
"Category": "Embedded Processors & Controllers",
"Pins": "48"
},
"characteristics": {
"version": 1,
"source": "datasheet",
"datasheet_sha256": "5f82e78c0fff896795f43de3631552e7bd9d211cb76610d8f5249d652e05bc54",
"rows": [
{
"name": "输入低电平电压 (VIL), VDD=3.3V",
"symbol": "VIL",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": null,
"max": 0.8,
"conditions": "VDD=3.3V; min printed as VSS (not numeric)",
"source_page": 65,
"source": "datasheet"
},
{
"name": "输入低电平电压 (VIL), VDD=2.5V",
"symbol": "VIL",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": null,
"max": 0.7,
"conditions": "VDD=2.5V; min printed as VSS (not numeric)",
"source_page": 65,
"source": "datasheet"
},
{
"name": "输入高电平电压 (VIH), VDD=3.3V",
"symbol": "VIH",
"kind": "electrical",
"unit": "V",
"min": 2,
"typ": null,
"max": null,
"conditions": "VDD=3.3V; max printed as VDD (not numeric)",
"source_page": 65,
"source": "datasheet"
},
{
"name": "输入高电平电压 (VIH), VDD=2.5V",
"symbol": "VIH",
"kind": "electrical",
"unit": "V",
"min": 1.7,
"typ": null,
"max": null,
"conditions": "VDD=2.5V; max printed as VDD (not numeric)",
"source_page": 65,
"source": "datasheet"
},
{
"name": "施密特触发器电压迟滞 (Vhys), VDD=3.3V/2.5V",
"symbol": "Vhys",
"kind": "electrical",
"unit": "mV",
"min": 200,
"typ": null,
"max": null,
"conditions": "VDD=3.3V/2.5V",
"source_page": 65,
"source": "datasheet"
},
{
"name": "输入漏电流 (Ilkg)",
"symbol": "Ilkg",
"kind": "electrical",
"unit": "μA",
"min": -1,
"typ": null,
"max": 1,
"conditions": "VDD=Maximum, VPAD=0 or VPAD=VDD",
"source_page": 65,
"source": "datasheet"
},
{
"name": "弱上拉等效电阻 (RPU), I/O",
"symbol": "RPU",
"kind": "electrical",
"unit": "kΩ",
"min": 90,
"typ": null,
"max": 170,
"conditions": "VDD=3.3V, VIN=VSS",
"source_page": 65,
"source": "datasheet"
},
{
"name": "弱下拉等效电阻 (RPD), I/O",
"symbol": "RPD",
"kind": "electrical",
"unit": "kΩ",
"min": 90,
"typ": null,
"max": 170,
"conditions": "VDD=3.3V, VIN=VDD",
"source_page": 65,
"source": "datasheet"
},
{
"name": "I/O引脚的电容 (CIO)",
"symbol": "CIO",
"kind": "electrical",
"unit": "pF",
"min": null,
"typ": null,
"max": 0.1,
"conditions": "",
"source_page": 65,
"source": "datasheet"
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