APM32F103RET6

{
  "schema_version": 1,
  "type": "component",
  "slug": "apm32f103ret6",
  "title": "APM32F103RET6",
  "brief": "Geehy 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",
    "apm32f103ret6",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "APM32F103RET6",
    "manufacturer": "Geehy",
    "package": "LQFP-64(10x10)",
    "pin_count": 64,
    "category": "Embedded Processors & Controllers",
    "subcategory": "Microcontrollers (MCU/MPU/SOC)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588893324174770176",
    "parts": {
      "symbol": "apm32f103ret6.kicad_sym",
      "footprint": "apm32f103ret6.kicad_mod",
      "model_3d": "apm32f103ret6-hero.glb",
      "model_3d_plain": "apm32f103ret6-etched.glb",
      "model_3d_step": "apm32f103ret6-etched.step",
      "model_3d_step_plain": "apm32f103ret6.step",
      "lbr": "apm32f103ret6.lbr"
    },
    "distributor_links": {
      "lcsc": "C526181"
    },
    "distributor_check": {
      "checked_at": "2026-10-19T09:30:59Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "error"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VBAT",
        "type": "power_in",
        "description": "Backup-domain supply for the RTC and backup registers, specified at 1.8 to 3.6 V."
      },
      {
        "number": "2",
        "name": "PC13-TAMPER-RTC",
        "type": "bidirectional",
        "description": "GPIO PC13 with TAMPER-RTC function; output drive is limited (footnote 4: 3 mA, 2 MHz, 30 pF)."
      },
      {
        "number": "3",
        "name": "PC14-OSC32_IN",
        "type": "bidirectional",
        "description": "GPIO PC14 that serves as the 32.768 kHz LSE oscillator input OSC32_IN, with the same limited drive as PC13."
      },
      {
        "number": "4",
        "name": "PC15-OSC32_OUT",
        "type": "bidirectional",
        "description": "GPIO PC15 that serves as the 32.768 kHz LSE oscillator output OSC32_OUT, with the same limited drive as PC13."
      },
      {
        "number": "5",
        "name": "PD0-OSC_IN",
        "type": "input",
        "description": "High-speed external oscillator input OSC_IN (4 to 16 MHz HSE) on LQFP64; PD0 GPIO is not available on this pin in this package."
      },
      {
        "number": "6",
        "name": "PD1-OSC_OUT",
        "type": "output",
        "description": "High-speed external oscillator output OSC_OUT for the 4 to 16 MHz HSE crystal on LQFP64; PD1 GPIO is not available on this pin in this package."
      },
      {
        "number": "7",
        "name": "NRST",
        "type": "bidirectional",
        "description": "Active-low reset pin with internal pull-up of 30 to 53 kΩ and about 300 mV Schmitt hysteresis."
      },
      {
        "number": "8",
        "name": "PC0",
        "type": "bidirectional",
        "description": "GPIO PC0 that can be used as ADC123 analog input channel 10 (ADC123_IN10)."
      },
      {
        "number": "9",
        "name": "PC1",
        "type": "bidirectional",
        "description": "GPIO PC1 that can be used as ADC123 analog input channel 11 (ADC123_IN11)."
      },
      {
        "number": "10",
        "name": "PC2",
        "type": "bidirectional",
        "description": "GPIO PC2 that can be used as ADC123 analog input channel 12 (ADC123_IN12)."
      },
      {
        "number": "11",
        "name": "PC3",
        "type": "bidirectional",
        "description": "GPIO PC3 that can be used as ADC123 analog input channel 13 (ADC123_IN13)."
      },
      {
        "number": "12",
        "name": "VSSA",
        "type": "power_in",
        "description": "Analog ground for the ADC, DAC and analog circuits."
      },
      {
        "number": "13",
        "name": "VDDA",
        "type": "power_in",
        "description": "Analog supply, 2.0 to 3.6 V; the ADC and DAC require VDDA of at least 2.4 V."
      },
      {
        "number": "14",
        "name": "PA0-WKUP",
        "type": "bidirectional",
        "description": "GPIO PA0 that also provides the WKUP wake-up input, ADC123_IN0, USART2_CTS and timer functions."
      },
      {
        "number": "15",
        "name": "PA1",
        "type": "bidirectional",
        "description": "GPIO PA1 with USART2_RTS, ADC123_IN1, TMR2_CH2 and TMR5_CH2 alternate functions."
      },
      {
        "number": "16",
        "name": "PA2",
        "type": "bidirectional",
        "description": "GPIO PA2 with USART2_TX, ADC123_IN2, TMR5_CH3 and TMR2_CH3 alternate functions."
      },
      {
        "number": "17",
        "name": "PA3",
        "type": "bidirectional",
        "description": "GPIO PA3 with USART2_RX, ADC12_IN3, TMR5_CH4 and TMR2_CH4 alternate functions."
      },
      {
        "number": "18",
        "name": "VSS_4",
        "type": "power_in",
        "description": "Digital ground."
      },
      {
        "number": "19",
        "name": "VDD_4",
        "type": "power_in",
        "description": "Digital supply, 2.0 to 3.6 V."
      },
      {
        "number": "20",
        "name": "PA4",
        "type": "bidirectional",
        "description": "GPIO PA4 with SPI1_NSS, USART2_CK, DAC_OUT1 and ADC12_IN4 alternate functions."
      },
      {
        "number": "21",
        "name": "PA5",
        "type": "bidirectional",
        "description": "GPIO PA5 with SPI1_SCK, ADC12_IN5 and DAC_OUT1 alternate functions."
      },
      {
        "number": "22",
        "name": "PA6",
        "type": "bidirectional",
        "description": "GPIO PA6 with SPI1_MISO, ADC12_IN6, TMR8_BKIN, TMR3_CH1 and TMR1_BKIN alternate functions."
      },
      {
        "number": "23",
        "name": "PA7",
        "type": "bidirectional",
        "description": "GPIO PA7 with SPI1_MOSI, ADC12_IN7, TMR8_CH1N, TMR3_CH2 and TMR1_CH1N alternate functions."
      },
      {
        "number": "24",
        "name": "PC4",
        "type": "bidirectional",
        "description": "GPIO PC4 that can be used as ADC12 analog input channel 14 (ADC12_IN14)."
      },
      {
        "number": "25",
        "name": "PC5",
        "type": "bidirectional",
        "description": "GPIO PC5 that can be used as ADC12 analog input channel 15 (ADC12_IN15)."
      },
      {
        "number": "26",
        "name": "PB0",
        "type": "bidirectional",
        "description": "GPIO PB0 with ADC12_IN8, TMR8_CH2N, TMR3_CH3 and TMR1_CH2N alternate functions."
      },
      {
        "number": "27",
        "name": "PB1",
        "type": "bidirectional",
        "description": "GPIO PB1 with ADC12_IN9, TMR8_CH3N, TMR3_CH4 and TMR1_CH3N alternate functions."
      },
      {
        "number": "28",
        "name": "PB2/BOOT1",
        "type": "bidirectional",
        "description": "5 V tolerant GPIO PB2 that is also sampled as the BOOT1 boot-mode pin."
      },
      {
        "number": "29",
        "name": "PB10",
        "type": "bidirectional",
        "description": "5 V tolerant GPIO PB10 with I2C2_SCL, I2C4_SCL, USART3_TX and TMR2_CH3 alternate functions."
      },
      {
        "number": "30",
        "name": "PB11",
        "type": "bidirectional",
        "description": "5 V tolerant GPIO PB11 with I2C2_SDA, I2C4_SDA, USART3_RX and TMR2_CH4 alternate functions."
      },
      {
        "number": "31",
        "name": "VSS_1",
        "type": "power_in",
        "description": "Digital ground."
      },
      {
        "number": "32",
        "name": "VDD_1",
        "type": "power_in",
        "description": "Digital supply, 2.0 to 3.6 V."
      },
      {
        "number": "33",
        "name": "PB12",
        "type": "bidirectional",
        "description": "5 V tolerant GPIO PB12 with SPI2_NSS, I2C2_SMBAI, USART3_CK, I2S2_WS and TMR1_BKIN alternate functions."
      },
      {
        "number": "34",
        "name": "PB13",
        "type": "bidirectional",
        "description": "5 V tolerant GPIO PB13 with SPI2_SCK, I2S2_CK, USART3_CTS and TMR1_CH1N alternate functions."
      },
      {
        "number": "35",
        "name": "PB14",
        "type": "bidirectional",
        "description": "5 V tolerant GPIO PB14 with SPI2_MISO, TMR1_CH2N and USART3_RTS alternate functions."
      },
      {
        "number": "36",
        "name": "PB15",
        "type": "bidirectional",
        "description": "5 V tolerant GPIO PB15 with SPI2_MOSI, I2S2_SD and TMR1_CH3N alternate functions."
      },
      {
        "number": "37",
        "name": "PC6",
        "type": "bidirectional",
        "description": "5 V tolerant GPIO PC6 with I2S2_MCK, TMR8_CH1, SDIO_D6 and TMR3_CH1 alternate functions."
      },
      {
        "number": "38",
        "name": "PC7",
        "type": "bidirectional",
        "description": "5 V tolerant GPIO PC7 with TMR8_CH2, SDIO_D7 and TMR3_CH2 alternate functions."
      },
      {
        "number": "39",
        "name": "PC8",
        "type": "bidirectional",
        "description": "5 V tolerant GPIO PC8 with TMR8_CH3, SDIO_D0 and TMR3_CH3 alternate functions."
      },
      {
        "number": "40",
        "name": "PC9",
        "type": "bidirectional",
        "description": "5 V tolerant GPIO PC9 with TMR8_CH4, SDIO_D1 and TMR3_CH4 alternate functions."
      },
      {
        "number": "41",
        "name": "PA8",
        "type": "bidirectional",
        "description": "5 V tolerant GPIO PA8 with USART1_CK, TMR1_CH1 and MCO alternate functions."
      },
      {
        "number": "42",
        "name": "PA9",
        "type": "bidirectional",
        "description": "5 V tolerant GPIO PA9 with USART1_TX and TMR1_CH2 alternate functions."
      },
      {
        "number": "43",
        "name": "PA10",
        "type": "bidirectional",
        "description": "5 V tolerant GPIO PA10 with USART1_RX and TMR1_CH3 alternate functions."
      },
      {
        "number": "44",
        "name": "PA11",
        "type": "bidirectional",
        "description": "5 V tolerant GPIO PA11 with USART1_CTS, USBDDM/USBD2DM, CAN_RX and TMR1_CH4 alternate functions."
      },
      {
        "number": "45",
        "name": "PA12",
        "type": "bidirectional",
        "description": "5 V tolerant GPIO PA12 with USART1_RTS, USBDDP/USBD2DP, CAN_TX and TMR1_ETR alternate functions."
      },
      {
        "number": "46",
        "name": "PA13",
        "type": "bidirectional",
        "description": "5 V tolerant GPIO PA13 that serves as the JTMS/SWDIO serial-wire debug data pin."
      },
      {
        "number": "47",
        "name": "VSS_2",
        "type": "power_in",
        "description": "Digital ground."
      },
      {
        "number": "48",
        "name": "VDD_2",
        "type": "power_in",
        "description": "Digital supply, 2.0 to 3.6 V."
      },
      {
        "number": "49",
        "name": "PA14",
        "type": "bidirectional",
        "description": "5 V tolerant GPIO PA14 that serves as the JTCK/SWCLK serial-wire debug clock pin."
      },
      {
        "number": "50",
        "name": "PA15",
        "type": "bidirectional",
        "description": "5 V tolerant GPIO PA15 with JTDI, SPI3_NSS, TMR2_CH1_ETR and SPI1_NSS alternate functions."
      },
      {
        "number": "51",
        "name": "PC10",
        "type": "bidirectional",
        "description": "5 V tolerant GPIO PC10 with UART4_TX, SDIO_D2 and USART3_TX alternate functions."
      },
      {
        "number": "52",
        "name": "PC11",
        "type": "bidirectional",
        "description": "5 V tolerant GPIO PC11 with UART4_RX, SDIO_D3 and USART3_RX alternate functions."
      },
      {
        "number": "53",
        "name": "PC12",
        "type": "bidirectional",
        "description": "5 V tolerant GPIO PC12 with UART5_TX, SDIO_CK and USART3_CK alternate functions."
      },
      {
        "number": "54",
        "name": "PD2",
        "type": "bidirectional",
        "description": "5 V tolerant GPIO PD2 with TMR3_ETR, UART5_RX and SDIO_CMD alternate functions."
      },
      {
        "number": "55",
        "name": "PB3",
        "type": "bidirectional",
        "description": "5 V tolerant GPIO PB3 with JTDO, SPI3_SCK, TRACESWO, TMR2_CH2 and SPI1_SCK alternate functions."
      },
      {
        "number": "56",
        "name": "PB4",
        "type": "bidirectional",
        "description": "5 V tolerant GPIO PB4 with NJTRST, SPI3_MISO, TMR3_CH1 and SPI1_MISO alternate functions."
      },
      {
        "number": "57",
        "name": "PB5",
        "type": "bidirectional",
        "description": "GPIO PB5 with I2C1_SMBAI, TIM4_CH1, TMR3_CH2 and SPI1_MOSI alternate functions; not listed as 5 V tolerant."
      },
      {
        "number": "58",
        "name": "PB6",
        "type": "bidirectional",
        "description": "5 V tolerant GPIO PB6 with I2C1_SCL, I2C3_SCL, TMR4_CH1 and USART1_TX alternate functions."
      },
      {
        "number": "59",
        "name": "PB7",
        "type": "bidirectional",
        "description": "5 V tolerant GPIO PB7 with I2C1_SDA, I2C3_SDA, TMR4_CH2 and USART1_RX alternate functions."
      },
      {
        "number": "60",
        "name": "BOOT0",
        "type": "input",
        "description": "Boot-mode selection input BOOT0, which together with BOOT1 (PB2) selects the boot memory source."
      },
      {
        "number": "61",
        "name": "PB8",
        "type": "bidirectional",
        "description": "5 V tolerant GPIO PB8 with TMR4_CH3, SDIO_D4, I2C1_SCL, I2C3_SCL and CAN_RX alternate functions."
      },
      {
        "number": "62",
        "name": "PB9",
        "type": "bidirectional",
        "description": "5 V tolerant GPIO PB9 with TMR4_CH4, SDIO_D5, I2C1_SDA, I2C3_SDA and CAN_TX alternate functions."
      },
      {
        "number": "63",
        "name": "VSS_3",
        "type": "power_in",
        "description": "Digital ground."
      },
      {
        "number": "64",
        "name": "VDD_3",
        "type": "power_in",
        "description": "Digital supply, 2.0 to 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: Pin 5 and pin 6 are printed as PD0-OSC_IN and PD1-OSC_OUT. The footnotes say that on LQFP64 these pi; Pins 2-4 carry a footnote (4) that is garbled in the text extraction. The 3 mA / 2 MHz / 30 pF drive; Some alternate-function strings are garbled in the extracted text, for example PA15 ('TMR2_CH1_ETR/ "
        ],
        "pages_sent": 75,
        "cost_usd": 0.2317,
        "at": "2026-10-19T09:28:31"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588893324174770176",
        "pages": 75,
        "sha256": "6b7b3dc839daa1d7",
        "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": "apm32f103ret6.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": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "apm32f103ret6-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": "bfab68005e59003742b2ad40197a9591124796ceffdf5f7532a5c0b48800bfa1",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Geehy",
      "Package": "LQFP-64(10x10)",
      "Category": "Embedded Processors & Controllers",
      "Pins": "64"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "6b7b3dc839daa1d79cf9e1a8e447e4d132f1f1e764ecb3a127f08b958cf989d6",
      "rows": [
        {
          "name": "Supply voltage VDD-VSS (absolute max)",
          "symbol": "VDD - VSS",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 4,
          "conditions": "",
          "source_page": 35,
          "source": "datasheet"
        },
        {
          "name": "Input voltage on five-volt tolerant pin",
          "symbol": "VIN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 5.5,
          "conditions": "FT (5V tolerant) pins; printed min is VSS-0.3",
          "source_page": 35,
          "source": "datasheet"
        },
        {
          "name": "Input voltage on other pins",
          "symbol": "VIN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": null,
          "conditions": "printed max is VDD+0.3; printed min is VSS-0.3",
          "source_page": 35,
          "source": "datasheet"
        },
        {
          "name": "Variation between VDDx and VDD",
          "symbol": "|VDDx - VDD|",
          "kind": "absolute_maximum",
          "unit": "mV",
          "min": null,
          "typ": null,
          "max": 50,
          "conditions": "",
          "source_page": 35,
          "source": "datasheet"
        },
        {
          "name": "Total current into VDD/VDDA power lines",
          "symbol": "IVDD",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 36,
          "source": "datasheet"
        },
        {
          "name": "Total current out of VSS ground lines",
          "symbol": "IVSS",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 36,
          "source": "datasheet"
        },
        {
          "name": "Output current sunk/sourced by any I/O and control pin",
          "symbol": "IIO",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": -25,
          "typ": null,
          "max": 25,
          "conditions": "",
          "source_page": 36,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature range",
          "symbol": "TSTG",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -55,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 36,
          "source": "datasheet"
        },
        {
          "name": "Maximum junction temperature (absolute)",
          "symbol": "TJ",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 36,
          "source": "datasheet"
        },
        {
          "name": "Internal AHB clock frequency",
          "symbol": "fHCLK",
          "kind": "recommended_operating",
          "unit": "MHz",
          "min": 0,
          "typ": null,
          "max": 96,
          "conditions": "",
          "source_page": 36,
          "source": "datasheet"
        },
        {
          "name": "APB1 clock frequency",
          "symbol": "fPCLK1",
          "kind": "recommended_operating",
          "unit": "MHz",
          "min": 0,
          "typ": null,
          "max": 48,
          "conditions": "",
          "source_page": 36,
          "source": "datasheet"
        },
        {
          "name": "APB2 clock frequency",
          "symbol": "fPCLK2",
          "kind": "recommended_operating",
          "unit": "MHz",
          "min": 0,
          "typ": null,
          "max": 96,
          "conditions": "",
          "source_page": 36,
          "source": "datasheet"
        },
        {
          "name": "Supply voltage",
          "symbol": "VDD",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 2,
          "typ": null,
          "max": 3.6,
          "conditions": "",
          "source_page": 36,
          "source": "datasheet"
        },
        {
          "name": "Analog supply voltage",
          "symbol": "VDDA",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 2,
          "typ": null,
          "max": 3.6,
          "conditions": "",
          "source_page": 37,
          "source": "datasheet"
        },
        {
          "name": "Analog supply voltage for ADC",
          "symbol": "VDDA",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 2.4,
          "typ": null,
          "max": 3.6,
          "conditions": "ADC used",
          "source_page": 37,
          "source": "datasheet"
        },
        {
          "name": "Backup supply voltage",
          "symbol": "VBAT",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 1.8,
          "typ": null,
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