STM32L052R8H6

{
  "slug": "stm32l052r8h6",
  "version": "0.1.0",
  "type": "component",
  "description": "STMicroelectronics Microcontrollers (MCU/MPU/SOC), TFBGA-64. Pinout checked against ST's open pin data, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "embedded processors & controllers",
    "stm32l052r8h6",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "stm32l052r8h6.kicad_sym",
    "stm32l052r8h6.kicad_mod",
    "stm32l052r8h6.glb",
    "stm32l052r8h6.step",
    "stm32l052r8h6.lbr",
    "docs/hero.png",
    "docs/stm32l052r8h6-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "stm32l052r8h6-hero.glb",
    "stm32l052r8h6-hero.overlay.json"
  ],
  "component": {
    "mpn": "STM32L052R8H6",
    "manufacturer": "STMicroelectronics",
    "package": "TFBGA-64",
    "pin_count": 64,
    "category": "Embedded Processors & Controllers",
    "subcategory": "Microcontrollers (MCU/MPU/SOC)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588951983080820736",
    "parts": {
      "symbol": "stm32l052r8h6.kicad_sym",
      "footprint": "stm32l052r8h6.kicad_mod",
      "model_3d": "stm32l052r8h6-hero.glb",
      "model_3d_plain": "stm32l052r8h6.glb",
      "model_3d_step": "stm32l052r8h6-etched.step",
      "model_3d_step_plain": "stm32l052r8h6.step",
      "lbr": "stm32l052r8h6.lbr"
    },
    "distributor_links": {
      "lcsc": "C1339809",
      "digikey": "497-18574-ND",
      "mouser": "511-STM32L052R8H6"
    },
    "distributor_check": {
      "checked_at": "2026-10-10T21:44:23Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "497-18574-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "511-STM32L052R8H6",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "A1",
        "name": "PC14-OSC32_IN",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) whose additional function is OSC32_IN, the 32 kHz oscillator input."
      },
      {
        "number": "A2",
        "name": "PC13",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with additional functions RTC_TAMP1/RTC_TS/RTC_OUT/WKUP2."
      },
      {
        "number": "A3",
        "name": "PB9",
        "type": "bidirectional",
        "description": "5 V tolerant FM+ capable I/O (FTf) with alternate functions EVENTOUT, I2C1_SDA and SPI2_NSS/I2S2_WS."
      },
      {
        "number": "A4",
        "name": "PB4",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions SPI1_MISO, EVENTOUT, TSC_G5_IO2 and TIM22_CH1, and additional function COMP2_INP."
      },
      {
        "number": "A5",
        "name": "PB3",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions SPI1_SCK, TIM2_CH2, TSC_G5I_O1 and EVENTOUT, and additional function COMP2_INN."
      },
      {
        "number": "A6",
        "name": "PA15",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions SPI1_NSS, TIM2_ETR, EVENTOUT, USART2_RX and TIM2_CH1."
      },
      {
        "number": "A7",
        "name": "PA14",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions SWCLK and USART2_TX."
      },
      {
        "number": "A8",
        "name": "PA13",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions SWDIO and USB_NOE."
      },
      {
        "number": "B1",
        "name": "PC15-OSC32_OUT",
        "type": "bidirectional",
        "description": "Standard 3.3 V I/O (TC) whose additional function is OSC32_OUT, the 32 kHz oscillator output."
      },
      {
        "number": "B2",
        "name": "VDD",
        "type": "power_in",
        "description": "Digital supply pin."
      },
      {
        "number": "B3",
        "name": "PB8",
        "type": "bidirectional",
        "description": "5 V tolerant FM+ capable I/O (FTf) with alternate functions TSC_SYNC and I2C1_SCL."
      },
      {
        "number": "B4",
        "name": "BOOT0",
        "type": "input",
        "description": "Dedicated BOOT0 pin (I/O structure B) with no alternate functions listed in the pin table."
      },
      {
        "number": "B5",
        "name": "PD2",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate function LPUART1_RTS/LPUART1_DE."
      },
      {
        "number": "B6",
        "name": "PC11",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate function LPUART1_RX."
      },
      {
        "number": "B7",
        "name": "PC10",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate function LPUART1_TX."
      },
      {
        "number": "B8",
        "name": "PA12",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) powered by VDD_USB (note 3), with alternate functions SPI1_MOSI, EVENTOUT, TSC_G4_IO4, USART1_RTS/USART1_DE and COMP2_OUT, and additional function USB_DP."
      },
      {
        "number": "C1",
        "name": "PH0-OSC_IN",
        "type": "bidirectional",
        "description": "Standard 3.3 V I/O (TC) with alternate function USB_CRS_SYNC and additional function OSC_IN."
      },
      {
        "number": "C2",
        "name": "VSS",
        "type": "power_in",
        "description": "Digital ground pin."
      },
      {
        "number": "C3",
        "name": "PB7",
        "type": "bidirectional",
        "description": "5 V tolerant FM+ capable I/O (FTf) with alternate functions USART1_RX, I2C1_SDA, LPTIM1_IN2 and TSC_G5_IO4, and additional functions COMP2_INP and PVD_IN."
      },
      {
        "number": "C4",
        "name": "PB5",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions SPI1_MOSI, LPTIM1_IN1, I2C1_SMBA and TIM22_CH2, and additional function COMP2_INP."
      },
      {
        "number": "C5",
        "name": "PC12",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with no alternate function listed in the pin table."
      },
      {
        "number": "C6",
        "name": "PA10",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions TSC_G4_IO2 and USART1_RX."
      },
      {
        "number": "C7",
        "name": "PA9",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions MCO, TSC_G4_IO1 and USART1_TX."
      },
      {
        "number": "C8",
        "name": "PA11",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) powered by VDD_USB (note 3), with alternate functions SPI1_MISO, EVENTOUT, TSC_G4_IO3, USART1_CTS and COMP1_OUT, and additional function USB_DM."
      },
      {
        "number": "D1",
        "name": "PH1-OSC_OUT",
        "type": "bidirectional",
        "description": "Standard 3.3 V I/O (TC) whose additional function is OSC_OUT."
      },
      {
        "number": "D2",
        "name": "VDD",
        "type": "power_in",
        "description": "Digital supply pin."
      },
      {
        "number": "D3",
        "name": "PB6",
        "type": "bidirectional",
        "description": "5 V tolerant FM+ capable I/O (FTf) with alternate functions USART1_TX, I2C1_SCL, LPTIM1_ETR and TSC_G5_IO3, and additional function COMP2_INP."
      },
      {
        "number": "D4",
        "name": "VSS",
        "type": "power_in",
        "description": "Digital ground pin."
      },
      {
        "number": "D5",
        "name": "VSS",
        "type": "power_in",
        "description": "Digital ground pin."
      },
      {
        "number": "D6",
        "name": "VSS",
        "type": "power_in",
        "description": "Digital ground pin."
      },
      {
        "number": "D7",
        "name": "PA8",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions MCO, USB_CRS_SYNC, EVENTOUT and USART1_CK."
      },
      {
        "number": "D8",
        "name": "PC9",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions TIM21_ETR, USB_NOE and TSC_G8_IO4."
      },
      {
        "number": "E1",
        "name": "NRST",
        "type": "bidirectional",
        "description": "Bidirectional reset pin with embedded weak pull-up resistor."
      },
      {
        "number": "E2",
        "name": "PC1",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions LPTIM1_OUT, EVENTOUT and TSC_G7_IO2, and additional function ADC_IN11."
      },
      {
        "number": "E3",
        "name": "PC0",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions LPTIM1_IN1, EVENTOUT and TSC_G7_IO1, and additional function ADC_IN10."
      },
      {
        "number": "E4",
        "name": "VDD",
        "type": "power_in",
        "description": "Digital supply pin."
      },
      {
        "number": "E5",
        "name": "VDD",
        "type": "power_in",
        "description": "Digital supply pin."
      },
      {
        "number": "E6",
        "name": "VDD_USB",
        "type": "power_in",
        "description": "Supply pin for PA11 and PA12 (note 3); for characteristics that refer to VDD, VDD_USB must be used instead."
      },
      {
        "number": "E7",
        "name": "PC7",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions TIM22_CH2 and TSC_G8_IO2."
      },
      {
        "number": "E8",
        "name": "PC8",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions TIM22_ETR and TSC_G8_IO3."
      },
      {
        "number": "F1",
        "name": "VSSA",
        "type": "power_in",
        "description": "Analog ground pin."
      },
      {
        "number": "F2",
        "name": "PC2",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions LPTIM1_IN2, SPI2_MISO/I2S2_MCK and TSC_G7_IO3, and additional function ADC_IN12."
      },
      {
        "number": "F3",
        "name": "PA2",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions TIM21_CH1, TIM2_CH3, TSC_G1_IO3, USART2_TX and COMP2_OUT, and additional functions COMP2_INM6 and ADC_IN2."
      },
      {
        "number": "F4",
        "name": "PA5",
        "type": "bidirectional",
        "description": "Standard 3.3 V I/O (TC) with alternate functions SPI1_SCK, TIM2_ETR, TSC_G2_IO2 and TIM2_CH1, and additional functions COMP1_INM5, COMP2_INM5 and ADC_IN5."
      },
      {
        "number": "F5",
        "name": "PB0",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions EVENTOUT and TSC_G3_IO2, and additional functions ADC_IN8 and VREF_OUT."
      },
      {
        "number": "F6",
        "name": "PC6",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions TIM22_CH1 and TSC_G8_IO1."
      },
      {
        "number": "F7",
        "name": "PB15",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions SPI2_MOSI/I2S2_SD and additional function RTC_REFIN."
      },
      {
        "number": "F8",
        "name": "PB14",
        "type": "bidirectional",
        "description": "5 V tolerant FM+ capable I/O (FTf) with alternate functions SPI2_MISO/I2S2_MCK, RTC_OUT, TSC_G6_IO4, LPUART1_RTS/LPUART1_DE, I2C2_SDA and TIM21_CH2."
      },
      {
        "number": "G1",
        "name": "VREF+",
        "type": "power_in",
        "description": "Positive reference voltage pin, shown as a supply pin in the pin table; the ADC decoupling figures show it either not connected to VDDA or connected to VDDA."
      },
      {
        "number": "G2",
        "name": "PA0",
        "type": "bidirectional",
        "description": "Standard 3.3 V I/O (TC) 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": "G3",
        "name": "PA3",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions TIM21_CH2, TIM2_CH4, TSC_G1_IO4 and USART2_RX, and additional functions COMP2_INP and ADC_IN3."
      },
      {
        "number": "G4",
        "name": "PA6",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions SPI1_MISO, TSC_G2_IO3, LPUART1_CTS, TIM22_CH1, EVENTOUT and COMP1_OUT, and additional function ADC_IN6."
      },
      {
        "number": "G5",
        "name": "PB1",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions TSC_G3_IO3 and LPUART1_RTS/LPUART1_DE, and additional functions ADC_IN9 and VREF_OUT."
      },
      {
        "number": "G6",
        "name": "PB2",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions LPTIM1_OUT and TSC_G3_IO4."
      },
      {
        "number": "G7",
        "name": "PB10",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions TIM2_CH3, TSC_SYNC, LPUART1_TX, SPI2_SCK and I2C2_SCL."
      },
      {
        "number": "G8",
        "name": "PB13",
        "type": "bidirectional",
        "description": "5 V tolerant FM+ capable I/O (FTf) with alternate functions SPI2_SCK/I2S2_CK, TSC_G6_IO3, LPUART1_CTS, I2C2_SCL and TIM21_CH1."
      },
      {
        "number": "H1",
        "name": "VDDA",
        "type": "power_in",
        "description": "Analog supply pin."
      },
      {
        "number": "H2",
        "name": "PA1",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions EVENTOUT, TIM2_CH2, TSC_G1_IO2, USART2_RTS/USART2_DE and TIM21_ETR, and additional functions COMP1_INP and ADC_IN1."
      },
      {
        "number": "H3",
        "name": "PA4",
        "type": "bidirectional",
        "description": "Standard 3.3 V I/O (TC) with reduced touch sensing sensitivity (note 2), so it is recommended as a sampling capacitor I/O; alternate functions include SPI1_NSS, TSC_G2_IO1, USART2_CK and TIM22_ETR, and additional functions include COMP1_INM4, COMP2_INM4, ADC_IN4 and DAC_OUT."
      },
      {
        "number": "H4",
        "name": "PA7",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions SPI1_MOSI, TSC_G2_IO4, TIM22_CH2, EVENTOUT and COMP2_OUT, and additional function ADC_IN7."
      },
      {
        "number": "H5",
        "name": "PC4",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions EVENTOUT and LPUART1_TX, and additional function ADC_IN14."
      },
      {
        "number": "H6",
        "name": "PC5",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions LPUART1_RX and TSC_G3_IO1, and additional function ADC_IN15."
      },
      {
        "number": "H7",
        "name": "PB11",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions EVENTOUT, TIM2_CH4, TSC_G6_IO1, LPUART1_RX and I2C2_SDA."
      },
      {
        "number": "H8",
        "name": "PB12",
        "type": "bidirectional",
        "description": "5 V tolerant I/O (FT) with alternate functions SPI2_NSS/I2S2_WS, LPUART1_RTS/LPUART1_DE, TSC_G6_IO2, I2C2_SMBA and EVENTOUT."
      }
    ],
    "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: Figure 4 (TFBGA64 ballout) text extraction is garbled, so ball positions were taken from the TFBGA64; Table 16 shows PC3 (LQFP64 pin 11) has no TFBGA64 ball ('-'), so it is not on this package and is om; VREF+ has no LQFP64 pin number; it is listed only for the TFBGA64 package at ball G1 and is included"
        ],
        "pages_sent": 68,
        "cost_usd": 0.3047,
        "at": "2026-10-10T21:44:08"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588951983080820736",
        "pages": 150,
        "sha256": "ccec04f26ebfb036",
        "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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        "file": "stm32l052r8h6.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          5.0,
          5.0,
          1.21
        ],
        "zmin_mm": -0.008,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "7125823590a819a0f6fa72e42ba51148d58f5a55617c48349c05479572466de8",
        "checked": "2026-10-10",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "stm32l052r8h6-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          5.0,
          5.0,
          1.21
        ],
        "zmin_mm": -0.008,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "f3915b67481dd782014a215cb61980ed938fe7c450ae29c0fc04ae01e08a24dc",
        "checked": "2026-10-10",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}