STM32L053R8T6TR

{
  "slug": "stm32l053r8t6tr",
  "version": "0.1.0",
  "type": "component",
  "description": "STMicroelectronics Microcontrollers (MCU/MPU/SOC), LQFP-64(10x10). Pinout checked against ST's open pin data, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "embedded processors & controllers",
    "stm32l053r8t6tr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
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    "README.md",
    "stm32l053r8t6tr.kicad_sym",
    "stm32l053r8t6tr.kicad_mod",
    "stm32l053r8t6tr.glb",
    "stm32l053r8t6tr.step",
    "stm32l053r8t6tr.lbr",
    "docs/hero.png",
    "docs/stm32l053r8t6tr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "stm32l053r8t6tr-hero.glb",
    "stm32l053r8t6tr-hero.overlay.json"
  ],
  "component": {
    "mpn": "STM32L053R8T6TR",
    "manufacturer": "STMicroelectronics",
    "package": "LQFP-64(10x10)",
    "pin_count": 64,
    "category": "Embedded Processors & Controllers",
    "subcategory": "Microcontrollers (MCU/MPU/SOC)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588905535344795648",
    "parts": {
      "symbol": "stm32l053r8t6tr.kicad_sym",
      "footprint": "stm32l053r8t6tr.kicad_mod",
      "model_3d": "stm32l053r8t6tr-hero.glb",
      "model_3d_plain": "stm32l053r8t6tr.glb",
      "model_3d_step": "stm32l053r8t6tr-etched.step",
      "model_3d_step_plain": "stm32l053r8t6tr.step",
      "lbr": "stm32l053r8t6tr.lbr"
    },
    "distributor_links": {
      "lcsc": "C784738",
      "digikey": "497-19667-2-ND",
      "mouser": "511-STM32L053R8T6TR"
    },
    "distributor_check": {
      "checked_at": "2026-10-08T19:09:12Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "497-19667-2-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "511-STM32L053R8T6TR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VLCD",
        "type": "power_in",
        "description": "LCD supply pin (VLCD) for the LCD controller, which the datasheet notes may be higher than VDDA and so is not read directly by the ADC."
      },
      {
        "number": "2",
        "name": "PC13",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O, reset function PC13, with additional functions RTC_TAMP1, RTC_TS, RTC_OUT and WKUP2."
      },
      {
        "number": "3",
        "name": "PC14-OSC32_IN",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O, reset function PC14, with additional function OSC32_IN (32 kHz oscillator input)."
      },
      {
        "number": "4",
        "name": "PC15-OSC32_OUT",
        "type": "bidirectional",
        "description": "Standard 3.3 V (TC) I/O, reset function PC15, with additional function OSC32_OUT (32 kHz oscillator output)."
      },
      {
        "number": "5",
        "name": "PH0-OSC_IN",
        "type": "bidirectional",
        "description": "Standard 3.3 V (TC) I/O, reset function PH0, with alternate function USB_CRS_SYNC and additional function OSC_IN (HSE oscillator input)."
      },
      {
        "number": "6",
        "name": "PH1-OSC_OUT",
        "type": "bidirectional",
        "description": "Standard 3.3 V (TC) I/O, reset function PH1, with additional function OSC_OUT (HSE oscillator output)."
      },
      {
        "number": "7",
        "name": "NRST",
        "type": "bidirectional",
        "description": "Bidirectional reset pin with embedded weak pull-up resistor."
      },
      {
        "number": "8",
        "name": "PC0",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions LPTIM1_IN1, LCD_SEG18, EVENTOUT and TSC_G7_IO1, and additional function ADC_IN10."
      },
      {
        "number": "9",
        "name": "PC1",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions LPTIM1_OUT, LCD_SEG19, EVENTOUT and TSC_G7_IO2, and additional function ADC_IN11."
      },
      {
        "number": "10",
        "name": "PC2",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions LPTIM1_IN2, LCD_SEG20, SPI2_MISO/I2S2_MCK and TSC_G7_IO3, and additional function ADC_IN12."
      },
      {
        "number": "11",
        "name": "PC3",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions LPTIM1_ETR, LCD_SEG21, SPI2_MOSI/I2S2_SD and TSC_G7_IO4, and additional function ADC_IN13."
      },
      {
        "number": "12",
        "name": "VSSA",
        "type": "power_in",
        "description": "Analog ground supply pin (VSSA) for the analog blocks such as the ADC, DAC and comparators."
      },
      {
        "number": "13",
        "name": "VDDA",
        "type": "power_in",
        "description": "Analog supply pin (VDDA); the datasheet states the ADC operates down to 1.65 V, the DAC down to 1.8 V and the comparators down to 1.65 V."
      },
      {
        "number": "14",
        "name": "PA0",
        "type": "bidirectional",
        "description": "Standard 3.3 V (TC) I/O with alternate functions TIM2_CH1, TSC_G1_IO1, USART2_CTS, TIM2_ETR and COMP1_OUT, and additional functions COMP1_INM6, ADC_IN0 and RTC_TAMP2/WKUP1."
      },
      {
        "number": "15",
        "name": "PA1",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions EVENTOUT, LCD_SEG0, TIM2_CH2, TSC_G1_IO2, USART2_RTS/USART2_DE and TIM21_ETR, and additional functions COMP1_INP and ADC_IN1."
      },
      {
        "number": "16",
        "name": "PA2",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions TIM21_CH1, LCD_SEG1, TIM2_CH3, TSC_G1_IO3, USART2_TX and COMP2_OUT, and additional functions COMP2_INM6 and ADC_IN2."
      },
      {
        "number": "17",
        "name": "PA3",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions TIM21_CH2, LCD_SEG2, TIM2_CH4, TSC_G1_IO4 and USART2_RX, and additional functions COMP2_INP and ADC_IN3."
      },
      {
        "number": "18",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground pin; all voltages are referenced to VSS."
      },
      {
        "number": "19",
        "name": "VDD",
        "type": "power_in",
        "description": "Digital supply pin; the device power supply range is stated as 1.65 V to 3.6 V on the cover page."
      },
      {
        "number": "20",
        "name": "PA4",
        "type": "bidirectional",
        "description": "Standard 3.3 V (TC) I/O with reduced touch sensing sensitivity (recommended as a sampling capacitor I/O), alternate functions SPI1_NSS, TSC_G2_IO1, USART2_CK and TIM22_ETR, and additional functions COMP1_INM4, COMP2_INM4, ADC_IN4 and DAC_OUT."
      },
      {
        "number": "21",
        "name": "PA5",
        "type": "bidirectional",
        "description": "Standard 3.3 V (TC) I/O with alternate functions SPI1_SCK, TIM2_ETR, TSC_G2_IO2 and TIM2_CH1, and additional functions COMP1_INM5, COMP2_INM5 and ADC_IN5."
      },
      {
        "number": "22",
        "name": "PA6",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions SPI1_MISO, LCD_SEG3, TSC_G2_IO3, LPUART1_CTS, TIM22_CH1, EVENTOUT and COMP1_OUT, and additional function ADC_IN6."
      },
      {
        "number": "23",
        "name": "PA7",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions SPI1_MOSI, LCD_SEG4, TSC_G2_IO4, TIM22_CH2, EVENTOUT and COMP2_OUT, and additional function ADC_IN7."
      },
      {
        "number": "24",
        "name": "PC4",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions EVENTOUT, LCD_SEG22 and LPUART1_TX, and additional function ADC_IN14."
      },
      {
        "number": "25",
        "name": "PC5",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions LCD_SEG23, LPUART1_RX and TSC_G3_IO1, and additional function ADC_IN15."
      },
      {
        "number": "26",
        "name": "PB0",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions EVENTOUT, LCD_SEG5 and TSC_G3_IO2, and additional functions LCD_VLCD3, ADC_IN8 and VREF_OUT."
      },
      {
        "number": "27",
        "name": "PB1",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions LCD_SEG6, TSC_G3_IO3 and LPUART1_RTS/LPUART1_DE, and additional functions ADC_IN9 and VREF_OUT."
      },
      {
        "number": "28",
        "name": "PB2",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions LPTIM1_OUT and TSC_G3_IO4, and additional function LCD_VLCD2."
      },
      {
        "number": "29",
        "name": "PB10",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions LCD_SEG10, TIM2_CH3, TSC_SYNC, LPUART1_TX, SPI2_SCK and I2C2_SCL."
      },
      {
        "number": "30",
        "name": "PB11",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions EVENTOUT, LCD_SEG11, TIM2_CH4, TSC_G6_IO1, LPUART1_RX and I2C2_SDA."
      },
      {
        "number": "31",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground pin; all voltages are referenced to VSS."
      },
      {
        "number": "32",
        "name": "VDD",
        "type": "power_in",
        "description": "Digital supply pin; the device power supply range is stated as 1.65 V to 3.6 V on the cover page."
      },
      {
        "number": "33",
        "name": "PB12",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions SPI2_NSS/I2S2_WS, LCD_SEG12, LPUART1_RTS/LPUART1_DE, TSC_G6_IO2, I2C2_SMBA and EVENTOUT, and additional function LCD_VLCD1."
      },
      {
        "number": "34",
        "name": "PB13",
        "type": "bidirectional",
        "description": "5 V tolerant, Fast Mode Plus capable (FTf) I/O with alternate functions SPI2_SCK/I2S2_CK, LCD_SEG13, TSC_G6_IO3, LPUART1_CTS, I2C2_SCL and TIM21_CH1."
      },
      {
        "number": "35",
        "name": "PB14",
        "type": "bidirectional",
        "description": "5 V tolerant, Fast Mode Plus capable (FTf) I/O with alternate functions SPI2_MISO/I2S2_MCK, LCD_SEG14, RTC_OUT, TSC_G6_IO4, LPUART1_RTS/LPUART1_DE, I2C2_SDA and TIM21_CH2."
      },
      {
        "number": "36",
        "name": "PB15",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions SPI2_MOSI/I2S2_SD, LCD_SEG15 and RTC_REFIN."
      },
      {
        "number": "37",
        "name": "PC6",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions TIM22_CH1, LCD_SEG24 and TSC_G8_IO1."
      },
      {
        "number": "38",
        "name": "PC7",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions TIM22_CH2, LCD_SEG25 and TSC_G8_IO2."
      },
      {
        "number": "39",
        "name": "PC8",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions TIM22_ETR, LCD_SEG26 and TSC_G8_IO3."
      },
      {
        "number": "40",
        "name": "PC9",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions TIM21_ETR, LCD_SEG27, USB_NOE and TSC_G8_IO4."
      },
      {
        "number": "41",
        "name": "PA8",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions MCO, LCD_COM0, USB_CRS_SYNC, EVENTOUT and USART1_CK."
      },
      {
        "number": "42",
        "name": "PA9",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions MCO, LCD_COM1, TSC_G4_IO1 and USART1_TX."
      },
      {
        "number": "43",
        "name": "PA10",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions LCD_COM2, TSC_G4_IO2 and USART1_RX."
      },
      {
        "number": "44",
        "name": "PA11",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O powered by VDD_USB, with alternate functions SPI1_MISO, EVENTOUT, TSC_G4_IO3, USART1_CTS and COMP1_OUT, and additional function USB_DM."
      },
      {
        "number": "45",
        "name": "PA12",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O powered by VDD_USB, with alternate functions SPI1_MOSI, EVENTOUT, TSC_G4_IO4, USART1_RTS/USART1_DE and COMP2_OUT, and additional function USB_DP."
      },
      {
        "number": "46",
        "name": "PA13",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions SWDIO (serial wire debug data) and USB_NOE."
      },
      {
        "number": "47",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground pin; all voltages are referenced to VSS."
      },
      {
        "number": "48",
        "name": "VDD_USB",
        "type": "power_in",
        "description": "Supply pin for the USB-related I/Os (PA11, PA12); the datasheet states that for characteristics referring to VDD, VDD_USB must be used for these pins."
      },
      {
        "number": "49",
        "name": "PA14",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions SWCLK (serial wire debug clock) and USART2_TX."
      },
      {
        "number": "50",
        "name": "PA15",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions SPI1_NSS, LCD_SEG17, TIM2_ETR, EVENTOUT, USART2_RX and TIM2_CH1."
      },
      {
        "number": "51",
        "name": "PC10",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions LPUART1_TX and LCD_COM4/LCD_SEG28/LCD_SEG40."
      },
      {
        "number": "52",
        "name": "PC11",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions LPUART1_RX and LCD_COM5/LCD_SEG29/LCD_SEG41."
      },
      {
        "number": "53",
        "name": "PC12",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate function LCD_COM6/LCD_SEG30/LCD_SEG42."
      },
      {
        "number": "54",
        "name": "PD2",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions LPUART1_RTS/LPUART1_DE and LCD_COM7/LCD_SEG31/LCD_SEG43."
      },
      {
        "number": "55",
        "name": "PB3",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions SPI1_SCK, LCD_SEG7, TIM2_CH2, TSC_G5_IO1 and EVENTOUT, and additional function COMP2_INN."
      },
      {
        "number": "56",
        "name": "PB4",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions SPI1_MISO, LCD_SEG8, EVENTOUT, TSC_G5_IO2 and TIM22_CH1, and additional function COMP2_INP."
      },
      {
        "number": "57",
        "name": "PB5",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O with alternate functions SPI1_MOSI, LCD_SEG9, LPTIM1_IN1, I2C1_SMBA and TIM22_CH2, and additional function COMP2_INP."
      },
      {
        "number": "58",
        "name": "PB6",
        "type": "bidirectional",
        "description": "5 V tolerant, Fast Mode Plus capable (FTf) I/O with alternate functions USART1_TX, I2C1_SCL, LPTIM1_ETR and TSC_G5_IO3, and additional function COMP2_INP."
      },
      {
        "number": "59",
        "name": "PB7",
        "type": "bidirectional",
        "description": "5 V tolerant, Fast Mode Plus capable (FTf) I/O with alternate functions USART1_RX, I2C1_SDA, LPTIM1_IN2 and TSC_G5_IO4, and additional functions COMP2_INP and PVD_IN."
      },
      {
        "number": "60",
        "name": "BOOT0",
        "type": "input",
        "description": "Dedicated BOOT0 pin (input-only, B structure) used for boot mode selection."
      },
      {
        "number": "61",
        "name": "PB8",
        "type": "bidirectional",
        "description": "5 V tolerant, Fast Mode Plus capable (FTf) I/O with alternate functions LCD_SEG16, TSC_SYNC and I2C1_SCL."
      },
      {
        "number": "62",
        "name": "PB9",
        "type": "bidirectional",
        "description": "5 V tolerant, Fast Mode Plus capable (FTf) I/O with alternate functions LCD_COM3, EVENTOUT, I2C1_SDA and SPI2_NSS/I2S2_WS."
      },
      {
        "number": "63",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground pin; all voltages are referenced to VSS."
      },
      {
        "number": "64",
        "name": "VDD",
        "type": "power_in",
        "description": "Digital supply pin; the device power supply range is stated as 1.65 V to 3.6 V on the cover page."
      }
    ],
    "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 check: MPN STM32L053R8T6TR decodes as R = 64 pins, 8 = 64 KB Flash, T = LQFP, with T; VREF+ (TFBGA64 ball G1) has no LQFP64 pin (dash in the LQFP64 column of Table 15), so it is excluded; Electrical limits (absolute maximum and operating ranges per supply pin) are in Section 6, which is "
        ],
        "pages_sent": 56,
        "cost_usd": 0.2897,
        "at": "2026-10-08T19:08:41"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588905535344795648",
        "pages": 136,
        "sha256": "b30ef01e0e2d9c80",
        "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": [
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        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "b0c827bc5c05552175d28affe44a5bd2ab45c9c36efff6ff07a74cc449b13db4",
        "checked": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "stm32l053r8t6tr-etched.step",
        "role": "eda",
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        "seat": "z = 0",
        "extents_mm": [
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        "zmin_mm": 0.0,
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        "footprint_binding": "identity",
        "sha256": "f7d38e4cfbd0d9e48c23b68cc252be0fb22592915577caa29d27e53de9e35b98",
        "checked": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}