N32A455REL7

{
  "schema_version": 1,
  "type": "component",
  "slug": "n32a455rel7",
  "title": "N32A455REL7",
  "brief": "Nations Technologies Inc Microcontrollers (MCU/MPU/SOC), LQFP-64(10x10). 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",
    "n32a455rel7",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "N32A455REL7",
    "manufacturer": "Nations Technologies Inc",
    "package": "LQFP-64(10x10)",
    "pin_count": 64,
    "category": "Embedded Processors & Controllers",
    "subcategory": "Microcontrollers (MCU/MPU/SOC)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8602999943880073216",
    "parts": {
      "symbol": "n32a455rel7.kicad_sym",
      "footprint": "n32a455rel7.kicad_mod",
      "model_3d": "n32a455rel7-hero.glb",
      "model_3d_plain": "n32a455rel7-etched.glb",
      "model_3d_step": "n32a455rel7-etched.step",
      "model_3d_step_plain": "n32a455rel7.step",
      "lbr": "n32a455rel7.lbr"
    },
    "distributor_links": {
      "lcsc": "C7503162",
      "digikey": "6384-N32A455REL7-ND"
    },
    "distributor_check": {
      "checked_at": "2026-10-20T18:34:41Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "6384-N32A455REL7-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VBAT",
        "type": "power_in",
        "description": "Backup-domain supply, 1.8-3.6 V, powers the RTC, the external 32 kHz oscillator and backup registers when VDD is off."
      },
      {
        "number": "2",
        "name": "PC13-TAMPER-RTC",
        "type": "bidirectional",
        "description": "TC-type 3.3 V GPIO with TAMPER-RTC function, fed through a power switch limited to 3 mA, so as an output it is limited to 2 MHz mode, 30 pF load, and 3 mA total together with PC14 and PC15."
      },
      {
        "number": "3",
        "name": "PC14-OSC32_IN",
        "type": "bidirectional",
        "description": "TC-type 3.3 V GPIO with OSC32_IN (LSE crystal input) function, subject to the same 3 mA power-switch limit and 2 MHz / 30 pF output restrictions as PC13."
      },
      {
        "number": "4",
        "name": "PC15-OSC32_OUT",
        "type": "bidirectional",
        "description": "TC-type 3.3 V GPIO with OSC32_OUT (LSE crystal output) function, subject to the same 3 mA power-switch limit and 2 MHz / 30 pF output restrictions as PC13."
      },
      {
        "number": "5",
        "name": "OSC_IN",
        "type": "input",
        "description": "High-speed external oscillator input for a 4-32 MHz crystal or resonator; after reset this pin is OSC_IN and software can remap it to PD0, which then works as a plain GPIO only."
      },
      {
        "number": "6",
        "name": "OSC_OUT",
        "type": "output",
        "description": "High-speed external oscillator output for a 4-32 MHz crystal or resonator; after reset this pin is OSC_OUT and software can remap it to PD1, which then works as a plain GPIO only."
      },
      {
        "number": "7",
        "name": "NRST",
        "type": "bidirectional",
        "description": "Active-low reset I/O with an internal pull-up (30-70 kOhm, 50 kOhm typical at 3.3 V), with pulses up to 100 ns filtered out."
      },
      {
        "number": "8",
        "name": "PC0",
        "type": "bidirectional",
        "description": "3.3 V-tolerant analog-capable GPIO with ADC12_IN6, I2C3_SCL, COMP7_INM and UART6_TX alternate functions."
      },
      {
        "number": "9",
        "name": "PC1",
        "type": "bidirectional",
        "description": "3.3 V-tolerant analog-capable GPIO with ADC12_IN7, I2C3_SDA, COMP7_INP and UART6_RX alternate functions."
      },
      {
        "number": "10",
        "name": "PC2",
        "type": "bidirectional",
        "description": "GPIO with ADC12_IN8, COMP7_OUT, UART7_TX, SPI3_NSS and I2S3_WS alternate functions; the pin table does not state its I/O structure or voltage tolerance."
      },
      {
        "number": "11",
        "name": "PC3",
        "type": "bidirectional",
        "description": "3.3 V-tolerant analog-capable GPIO with ADC12_IN9, UART7_RX, SPI3_SCK, I2S3_CK, OPAMP3/OPAMP4 VINP and COMP5_INP alternate functions."
      },
      {
        "number": "12",
        "name": "VSSA",
        "type": "power_in",
        "description": "Analog ground for the ADC, DAC, OPAMP and COMP blocks, which must be connected to VSS."
      },
      {
        "number": "13",
        "name": "VDDA",
        "type": "power_in",
        "description": "Analog supply for the ADC, DAC, OPAMP and COMP blocks, 1.8-3.6 V, which must be connected to VDD (at most 300 mV difference during operation)."
      },
      {
        "number": "14",
        "name": "PA0-WKUP",
        "type": "bidirectional",
        "description": "3.3 V-tolerant analog-capable GPIO with WKUP wake-up input, ADC1_IN1, USART2_CTS, TIM2/TIM5/TIM8 and COMP1 alternate functions."
      },
      {
        "number": "15",
        "name": "PA1",
        "type": "bidirectional",
        "description": "3.3 V-tolerant analog-capable GPIO with USART2_RTS, ADC1_IN2, TIM5_CH2, TIM2_CH2, COMP1_INP, OPAMP1/OPAMP3 VINP and SPI3_MOSI alternate functions."
      },
      {
        "number": "16",
        "name": "PA2",
        "type": "bidirectional",
        "description": "3.3 V-tolerant analog-capable GPIO with USART2_TX, TIM5_CH3, ADC12_IN11, TIM2_CH3, COMP2_OUT and OPAMP1/OPAMP2 VINM alternate functions."
      },
      {
        "number": "17",
        "name": "PA3",
        "type": "bidirectional",
        "description": "3.3 V-tolerant analog-capable GPIO with USART2_RX, TIM5_CH4, ADC1_IN4, TIM2_CH4, OPAMP1 VINM/VINP and COMP5_INP alternate functions."
      },
      {
        "number": "18",
        "name": "VSS_4",
        "type": "power_in",
        "description": "Ground pin for the digital I/O and core, to be connected to the board ground."
      },
      {
        "number": "19",
        "name": "VDD_4",
        "type": "power_in",
        "description": "I/O and internal regulator supply, 1.8-3.6 V."
      },
      {
        "number": "20",
        "name": "PA4",
        "type": "bidirectional",
        "description": "3.3 V-tolerant analog-capable GPIO with DAC_OUT1, SPI1_NSS, USART2_CK, ADC2_IN1, QSPI_NSS, I2C2_SCL and several COMP inverting-input alternate functions."
      },
      {
        "number": "21",
        "name": "PA5",
        "type": "bidirectional",
        "description": "3.3 V-tolerant analog-capable GPIO with DAC_OUT2, SPI1_SCK, ADC2_IN2, QSPI_SCK, I2C2_SDA and several COMP inverting-input alternate functions."
      },
      {
        "number": "22",
        "name": "PA6",
        "type": "bidirectional",
        "description": "3.3 V-tolerant analog-capable GPIO with SPI1_MISO, TIM8_BKIN, ADC1_IN3, TIM3_CH1, COMP1_OUT, QSPI_IO0, TIM1_BKIN and OPAMP1_VOUT alternate functions."
      },
      {
        "number": "23",
        "name": "PA7",
        "type": "bidirectional",
        "description": "3.3 V-tolerant analog-capable GPIO with SPI1_MOSI, TIM8_CH1N, ADC2_IN4, TIM3_CH2, QSPI_IO1, TIM1_CH1N, COMP2_INP and OPAMP1/OPAMP2 VINP alternate functions."
      },
      {
        "number": "24",
        "name": "PC4",
        "type": "bidirectional",
        "description": "3.3 V-tolerant analog-capable GPIO with ADC2_IN5, QSPI_IO2, UART7_TX, I2C3_SCL, OPAMP3_VINM and COMP4/COMP5 alternate functions."
      },
      {
        "number": "25",
        "name": "PC5",
        "type": "bidirectional",
        "description": "3.3 V-tolerant analog-capable GPIO with ADC2_IN12, QSPI_IO3, UART7_RX, I2C3_SDA, OPAMP4_VINP, COMP4_OUT and COMP6_INP alternate functions."
      },
      {
        "number": "26",
        "name": "PB0",
        "type": "bidirectional",
        "description": "3.3 V-tolerant analog-capable GPIO with ADC3_IN12, TIM3_CH3, TIM8_CH2N, TIM1_CH2N, UART6_TX, OPAMP2_VINP, COMP3_INP and COMP5_OUT alternate functions."
      },
      {
        "number": "27",
        "name": "PB1",
        "type": "bidirectional",
        "description": "3.3 V-tolerant analog-capable GPIO with ADC2_IN3, TIM3_CH4, TIM8_CH3N, COMP4_OUT, TIM1_CH3N, OPAMP2_VOUT, UART6_RX, COMP2_INM and COMP1_OUT alternate functions."
      },
      {
        "number": "28",
        "name": "PB2/BOOT1",
        "type": "bidirectional",
        "description": "3.3 V-tolerant analog-capable GPIO that also carries the BOOT1 boot-mode select, with ADC2_IN13, UART4_TX and SPI1_NSS alternate functions."
      },
      {
        "number": "29",
        "name": "PB10",
        "type": "bidirectional",
        "description": "Fail-safe 3.3 V-tolerant analog-capable GPIO (no current flows in from this pin when VDD is absent) with I2C2_SCL, USART3_TX, TIM2_CH3, COMP5_INM, OPAMP3/OPAMP4 VINM, COMP1_INP and COMP3_OUT alternate functions."
      },
      {
        "number": "30",
        "name": "PB11",
        "type": "bidirectional",
        "description": "3.3 V-tolerant analog-capable GPIO with I2C2_SDA, USART3_RX, ADC3_IN1, TIM2_CH4, OPAMP3_VOUT, COMP2_INP and COMP5_OUT alternate functions."
      },
      {
        "number": "31",
        "name": "VSS_1",
        "type": "power_in",
        "description": "Ground pin for the digital I/O and core."
      },
      {
        "number": "32",
        "name": "VDD_1",
        "type": "power_in",
        "description": "I/O and internal regulator supply, 1.8-3.6 V."
      },
      {
        "number": "33",
        "name": "PB12",
        "type": "bidirectional",
        "description": "3.3 V-tolerant analog-capable GPIO with SPI2_NSS, I2S2_WS, I2C2_SMBA, USART3_CK, TIM1_BKIN, CAN2_RX, ADC4_IN3, COMP3_INM, OPAMP4_VOUT and COMP4_OUT alternate functions."
      },
      {
        "number": "34",
        "name": "PB13",
        "type": "bidirectional",
        "description": "3.3 V-tolerant analog-capable GPIO with SPI2_SCK, I2S2_CK, USART3_CTS, TIM1_CH1N, CAN2_TX, ADC3_IN5, UART5_TX and COMP4_INM alternate functions."
      },
      {
        "number": "35",
        "name": "PB14",
        "type": "bidirectional",
        "description": "3.3 V-tolerant analog-capable GPIO with SPI2_MISO, TIM1_CH2N, USART3_RTS, ADC4_IN4, COMP3_INP and UART5_RX alternate functions."
      },
      {
        "number": "36",
        "name": "PB15",
        "type": "bidirectional",
        "description": "3.3 V-tolerant analog-capable GPIO with SPI2_MOSI, I2S2_SD, TIM1_CH3N, ADC4_IN5 and COMP4_INP alternate functions."
      },
      {
        "number": "37",
        "name": "PC6",
        "type": "bidirectional",
        "description": "Fail-safe 3.3 V-tolerant analog-capable GPIO with I2S2_MCK, TIM8_CH1, SDIO_DAT6, TIM3_CH1, SPI2_NSS and I2S2_WS alternate functions."
      },
      {
        "number": "38",
        "name": "PC7",
        "type": "bidirectional",
        "description": "Fail-safe 3.3 V-tolerant analog-capable GPIO with I2S3_MCK, TIM8_CH2, SDIO_DAT7, I2C4_SDA, TIM3_CH2, SPI2_SCK, I2S2_CK and USART2_RTS alternate functions."
      },
      {
        "number": "39",
        "name": "PC8",
        "type": "bidirectional",
        "description": "Fail-safe 3.3 V-tolerant analog-capable GPIO with TIM8_CH3, SDIO_DAT0, TIM3_CH3, SPI2_MISO and USART2_TX alternate functions."
      },
      {
        "number": "40",
        "name": "PC9",
        "type": "bidirectional",
        "description": "Fail-safe 3.3 V-tolerant analog-capable GPIO with TIM8_CH4, SDIO_DAT1, TIM3_CH4, SPI2_MOSI, I2S2_SD, USART2_RX, COMP6_OUT, OPAMP3/OPAMP4 inputs and COMP4_INP alternate functions."
      },
      {
        "number": "41",
        "name": "PA8",
        "type": "bidirectional",
        "description": "Fail-safe 5 V-tolerant FT GPIO with USART1_CK, TIM1_CH1 and MCO alternate functions; the I/O-to-VDD voltage difference must stay below 3.6 V."
      },
      {
        "number": "42",
        "name": "PA9",
        "type": "bidirectional",
        "description": "Fail-safe 5 V-tolerant FT GPIO with USART1_TX, TIM1_CH2 and I2C4_SCL alternate functions; the I/O-to-VDD voltage difference must stay below 3.6 V."
      },
      {
        "number": "43",
        "name": "PA10",
        "type": "bidirectional",
        "description": "Fail-safe 5 V-tolerant FT GPIO with USART1_RX, TIM1_CH3 and I2C4_SDA alternate functions; the I/O-to-VDD voltage difference must stay below 3.6 V."
      },
      {
        "number": "44",
        "name": "PA11",
        "type": "bidirectional",
        "description": "Fail-safe 5 V-tolerant FT GPIO with USART1_CTS, CAN1_RX, TIM1_CH4, COMP1_OUT and COMP5_OUT alternate functions; the I/O-to-VDD voltage difference must stay below 3.6 V."
      },
      {
        "number": "45",
        "name": "PA12",
        "type": "bidirectional",
        "description": "Fail-safe 5 V-tolerant FT GPIO with USART1_RTS, CAN1_TX, TIM1_ETR, COMP2_OUT and COMP6_OUT alternate functions; the I/O-to-VDD voltage difference must stay below 3.6 V."
      },
      {
        "number": "46",
        "name": "PA13",
        "type": "bidirectional",
        "description": "Fail-safe 5 V-tolerant FT pin whose default function after reset is SWDIO/JTMS debug, with UART4_TX as an alternate function."
      },
      {
        "number": "47",
        "name": "VSS_2",
        "type": "power_in",
        "description": "Ground pin for the digital I/O and core."
      },
      {
        "number": "48",
        "name": "VDD_2",
        "type": "power_in",
        "description": "I/O and internal regulator supply, 1.8-3.6 V."
      },
      {
        "number": "49",
        "name": "PA14",
        "type": "bidirectional",
        "description": "Fail-safe 5 V-tolerant FT pin whose default function after reset is SWCLK/JTCK debug, with UART4_RX as an alternate function."
      },
      {
        "number": "50",
        "name": "PA15",
        "type": "bidirectional",
        "description": "Fail-safe 5 V-tolerant FT pin whose default function after reset is JTDI debug, with SPI3_NSS, I2S3_WS, TIM2_CH1_ETR, SPI1_NSS, USART2_CTS and TIM8_CH1N alternate functions."
      },
      {
        "number": "51",
        "name": "PC10",
        "type": "bidirectional",
        "description": "Fail-safe 3.3 V-tolerant analog-capable GPIO with UART4_TX, SDIO_DAT2, USART3_TX, SPI3_SCK, I2S3_CK, QSPI_NSS and COMP3_OUT alternate functions."
      },
      {
        "number": "52",
        "name": "PC11",
        "type": "bidirectional",
        "description": "Fail-safe 3.3 V-tolerant analog-capable GPIO with UART4_RX, SDIO_DAT3, USART3_RX, SPI3_MISO, QSPI_SCK and COMP4_OUT alternate functions."
      },
      {
        "number": "53",
        "name": "PC12",
        "type": "bidirectional",
        "description": "Fail-safe 3.3 V-tolerant analog-capable GPIO with UART5_TX, SDIO_CK, USART3_CK, SPI3_MOSI, I2S3_SD, QSPI_IO0 and TIM8_CH2N alternate functions."
      },
      {
        "number": "54",
        "name": "PD2",
        "type": "bidirectional",
        "description": "Fail-safe 3.3 V-tolerant analog-capable GPIO with TIM3_ETR, UART5_RX, SDIO_CMD, SPI3_NSS, I2S3_WS, QSPI_IO3 and TIM8_CH3N alternate functions."
      },
      {
        "number": "55",
        "name": "PB3",
        "type": "bidirectional",
        "description": "Fail-safe 5 V-tolerant FT pin whose default function after reset is JTDO debug, with TRACESWO, SPI3_SCK, I2S3_CK, TIM2_CH2, SPI1_SCK, USART2_RTS and TIM8_BKIN alternate functions."
      },
      {
        "number": "56",
        "name": "PB4",
        "type": "bidirectional",
        "description": "Fail-safe 5 V-tolerant FT pin whose default function after reset is NJTRST debug, with SPI3_MISO, TIM3_CH1, SPI1_MISO, USART2_TX and TIM8_ETR alternate functions."
      },
      {
        "number": "57",
        "name": "PB5",
        "type": "bidirectional",
        "description": "Fail-safe 5 V-tolerant FT GPIO with I2C1_SMBA, SPI3_MOSI, I2S3_SD, TIM3_CH2, SPI1_MOSI, CAN2_RX, USART2_RX and TIM1_BKIN alternate functions."
      },
      {
        "number": "58",
        "name": "PB6",
        "type": "bidirectional",
        "description": "Fail-safe 3.3 V-tolerant analog-capable GPIO with I2C1_SCL, TIM4_CH1, USART1_TX, CAN2_TX and COMP5_OUT alternate functions."
      },
      {
        "number": "59",
        "name": "PB7",
        "type": "bidirectional",
        "description": "Fail-safe 3.3 V-tolerant analog-capable GPIO with I2C1_SDA, TIM4_CH2, USART1_RX and COMP6_OUT alternate functions."
      },
      {
        "number": "60",
        "name": "BOOT0",
        "type": "input",
        "description": "Boot-mode select input which, together with BOOT1, chooses between main Flash, system memory or internal SRAM boot; it is an input with pull-down during reset."
      },
      {
        "number": "61",
        "name": "PB8",
        "type": "bidirectional",
        "description": "Fail-safe 3.3 V-tolerant analog-capable GPIO with TIM4_CH3, SDIO_DAT4, COMP1_OUT, I2C1_SCL, CAN1_RX and UART5_TX alternate functions."
      },
      {
        "number": "62",
        "name": "PB9",
        "type": "bidirectional",
        "description": "Fail-safe 3.3 V-tolerant analog-capable GPIO with TIM4_CH4, SDIO_DAT5, COMP2_OUT, I2C1_SDA, CAN1_TX and UART5_RX alternate functions."
      },
      {
        "number": "63",
        "name": "VSS_3",
        "type": "power_in",
        "description": "Ground pin for the digital I/O and core."
      },
      {
        "number": "64",
        "name": "VDD_3",
        "type": "power_in",
        "description": "I/O and internal regulator supply, 1.8-3.6 V; the datasheet requires the 4.7 uF decoupling capacitor on VDD3."
      }
    ],
    "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: The pin table lists VREF+ and VREF- only for the LQFP100 column. For LQFP64 the VREF+ row shows no p; Pins 5 and 6 default to OSC_IN/OSC_OUT on LQFP64 and can be remapped to PD0/PD1 in software. Footnot; PC13, PC14 and PC15 are fed from a power switch limited to 3 mA total, and as outputs they are restr"
        ],
        "pages_sent": 64,
        "cost_usd": 0.3263,
        "at": "2026-10-20T18:32:41"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8602999943880073216",
        "pages": 80,
        "sha256": "4babfe66e96b2640",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 64,
        "described": 64,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "n32a455rel7.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          12,
          12,
          1.5
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "b0c827bc5c05552175d28affe44a5bd2ab45c9c36efff6ff07a74cc449b13db4",
        "checked": "2026-10-20",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "n32a455rel7-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          12,
          12,
          1.5
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "580287c0da96f552b098bdd201a93df96be1d84421ef5af96862452049ed417a",
        "checked": "2026-10-20",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Nations Technologies Inc",
      "Package": "LQFP-64(10x10)",
      "Category": "Embedded Processors & Controllers",
      "Pins": "64"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "4babfe66e96b26400456a6d956204c8cc519b9d8ad17f995715036af402d75a2",
      "rows": [
        {
          "name": "Output low voltage, VDD=3.3V",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.55,
          "conditions": "VDD=3.3V, drive level 2/4/8/12",
          "source_page": 55,
          "source": "datasheet"
        },
        {
          "name": "Output low voltage, VDD=2.5V",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.45,
          "conditions": "VDD=2.5V, drive level 2/4/8/12",
          "source_page": 55,
          "source": "datasheet"
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