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STM32L053R8T6TR
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STMicroelectronics Microcontrollers (MCU/MPU/SOC), LQFP-64(10x10). Pinout checked against ST's open pin data, KiCad symbol/footprint/3D.
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README.mdadded+100@@ -0,0 +1,100 @@+# STM32L053R8T6TR++**STMicroelectronics** · Microcontrollers (MCU/MPU/SOC) · LQFP-64(10x10)++STM32L053R8T6TR from STMicroelectronics, in a LQFP-64(10x10). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model, then checked against ST open pin data); symbol, footprint, and 3D from KiCad-official CAD.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | VLCD | power_in | 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. |+| 2 | PC13 | bidirectional | 5 V tolerant (FT) I/O, reset function PC13, with additional functions RTC_TAMP1, RTC_TS, RTC_OUT and WKUP2. |+| 3 | PC14-OSC32_IN | bidirectional | 5 V tolerant (FT) I/O, reset function PC14, with additional function OSC32_IN (32 kHz oscillator input). |+| 4 | PC15-OSC32_OUT | bidirectional | Standard 3.3 V (TC) I/O, reset function PC15, with additional function OSC32_OUT (32 kHz oscillator output). |+| 5 | PH0-OSC_IN | bidirectional | Standard 3.3 V (TC) I/O, reset function PH0, with alternate function USB_CRS_SYNC and additional function OSC_IN (HSE oscillator input). |+| 6 | PH1-OSC_OUT | bidirectional | Standard 3.3 V (TC) I/O, reset function PH1, with additional function OSC_OUT (HSE oscillator output). |+| 7 | NRST | bidirectional | Bidirectional reset pin with embedded weak pull-up resistor. |+| 8 | PC0 | bidirectional | 5 V tolerant (FT) I/O with alternate functions LPTIM1_IN1, LCD_SEG18, EVENTOUT and TSC_G7_IO1, and additional function ADC_IN10. |+| 9 | PC1 | bidirectional | 5 V tolerant (FT) I/O with alternate functions LPTIM1_OUT, LCD_SEG19, EVENTOUT and TSC_G7_IO2, and additional function ADC_IN11. |+| 10 | PC2 | bidirectional | 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. |+| 11 | PC3 | bidirectional | 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. |+| 12 | VSSA | power_in | Analog ground supply pin (VSSA) for the analog blocks such as the ADC, DAC and comparators. |+| 13 | VDDA | power_in | 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. |+| 14 | PA0 | bidirectional | 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. |+| 15 | PA1 | bidirectional | 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. |+| 16 | PA2 | bidirectional | 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. |+| 17 | PA3 | bidirectional | 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. |+| 18 | VSS | power_in | Ground pin; all voltages are referenced to VSS. |+| 19 | VDD | power_in | Digital supply pin; the device power supply range is stated as 1.65 V to 3.6 V on the cover page. |+| 20 | PA4 | bidirectional | 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. |+| 21 | PA5 | bidirectional | 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. |+| 22 | PA6 | bidirectional | 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. |+| 23 | PA7 | bidirectional | 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. |+| 24 | PC4 | bidirectional | 5 V tolerant (FT) I/O with alternate functions EVENTOUT, LCD_SEG22 and LPUART1_TX, and additional function ADC_IN14. |+| 25 | PC5 | bidirectional | 5 V tolerant (FT) I/O with alternate functions LCD_SEG23, LPUART1_RX and TSC_G3_IO1, and additional function ADC_IN15. |+| 26 | PB0 | bidirectional | 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. |+| 27 | PB1 | bidirectional | 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. |+| 28 | PB2 | bidirectional | 5 V tolerant (FT) I/O with alternate functions LPTIM1_OUT and TSC_G3_IO4, and additional function LCD_VLCD2. |+| 29 | PB10 | bidirectional | 5 V tolerant (FT) I/O with alternate functions LCD_SEG10, TIM2_CH3, TSC_SYNC, LPUART1_TX, SPI2_SCK and I2C2_SCL. |+| 30 | PB11 | bidirectional | 5 V tolerant (FT) I/O with alternate functions EVENTOUT, LCD_SEG11, TIM2_CH4, TSC_G6_IO1, LPUART1_RX and I2C2_SDA. |+| 31 | VSS | power_in | Ground pin; all voltages are referenced to VSS. |+| 32 | VDD | power_in | Digital supply pin; the device power supply range is stated as 1.65 V to 3.6 V on the cover page. |+| 33 | PB12 | bidirectional | 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. |+| 34 | PB13 | bidirectional | 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. |+| 35 | PB14 | bidirectional | 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. |+| 36 | PB15 | bidirectional | 5 V tolerant (FT) I/O with alternate functions SPI2_MOSI/I2S2_SD, LCD_SEG15 and RTC_REFIN. |+| 37 | PC6 | bidirectional | 5 V tolerant (FT) I/O with alternate functions TIM22_CH1, LCD_SEG24 and TSC_G8_IO1. |+| 38 | PC7 | bidirectional | 5 V tolerant (FT) I/O with alternate functions TIM22_CH2, LCD_SEG25 and TSC_G8_IO2. |+| 39 | PC8 | bidirectional | 5 V tolerant (FT) I/O with alternate functions TIM22_ETR, LCD_SEG26 and TSC_G8_IO3. |+| 40 | PC9 | bidirectional | 5 V tolerant (FT) I/O with alternate functions TIM21_ETR, LCD_SEG27, USB_NOE and TSC_G8_IO4. |+| 41 | PA8 | bidirectional | 5 V tolerant (FT) I/O with alternate functions MCO, LCD_COM0, USB_CRS_SYNC, EVENTOUT and USART1_CK. |+| 42 | PA9 | bidirectional | 5 V tolerant (FT) I/O with alternate functions MCO, LCD_COM1, TSC_G4_IO1 and USART1_TX. |+| 43 | PA10 | bidirectional | 5 V tolerant (FT) I/O with alternate functions LCD_COM2, TSC_G4_IO2 and USART1_RX. |+| 44 | PA11 | bidirectional | 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. |+| 45 | PA12 | bidirectional | 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. |+| 46 | PA13 | bidirectional | 5 V tolerant (FT) I/O with alternate functions SWDIO (serial wire debug data) and USB_NOE. |+| 47 | VSS | power_in | Ground pin; all voltages are referenced to VSS. |+| 48 | VDD_USB | power_in | 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. |+| 49 | PA14 | bidirectional | 5 V tolerant (FT) I/O with alternate functions SWCLK (serial wire debug clock) and USART2_TX. |+| 50 | PA15 | bidirectional | 5 V tolerant (FT) I/O with alternate functions SPI1_NSS, LCD_SEG17, TIM2_ETR, EVENTOUT, USART2_RX and TIM2_CH1. |+| 51 | PC10 | bidirectional | 5 V tolerant (FT) I/O with alternate functions LPUART1_TX and LCD_COM4/LCD_SEG28/LCD_SEG40. |+| 52 | PC11 | bidirectional | 5 V tolerant (FT) I/O with alternate functions LPUART1_RX and LCD_COM5/LCD_SEG29/LCD_SEG41. |+| 53 | PC12 | bidirectional | 5 V tolerant (FT) I/O with alternate function LCD_COM6/LCD_SEG30/LCD_SEG42. |+| 54 | PD2 | bidirectional | 5 V tolerant (FT) I/O with alternate functions LPUART1_RTS/LPUART1_DE and LCD_COM7/LCD_SEG31/LCD_SEG43. |+| 55 | PB3 | bidirectional | 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. |+| 56 | PB4 | bidirectional | 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. |+| 57 | PB5 | bidirectional | 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. |+| 58 | PB6 | bidirectional | 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. |+| 59 | PB7 | bidirectional | 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. |+| 60 | BOOT0 | input | Dedicated BOOT0 pin (input-only, B structure) used for boot mode selection. |+| 61 | PB8 | bidirectional | 5 V tolerant, Fast Mode Plus capable (FTf) I/O with alternate functions LCD_SEG16, TSC_SYNC and I2C1_SCL. |+| 62 | PB9 | bidirectional | 5 V tolerant, Fast Mode Plus capable (FTf) I/O with alternate functions LCD_COM3, EVENTOUT, I2C1_SDA and SPI2_NSS/I2S2_WS. |+| 63 | VSS | power_in | Ground pin; all voltages are referenced to VSS. |+| 64 | VDD | power_in | Digital supply pin; the device power supply range is stated as 1.65 V to 3.6 V on the cover page. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | STMicroelectronics |+| Package | LQFP-64(10x10) |+| Category | Embedded Processors & Controllers |+| Pins | 64 |++## CAD (KiCad official)++- Symbol: `STM32L053R8T6TR`+- Footprint: `Package_QFP:LQFP-64_10x10mm_P0.5mm`+- 3D model: LQFP-64(10x10) (KiCad packages3D, STEP)+- 3D model files: `stm32l053r8t6tr-etched.step` / `stm32l053r8t6tr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `stm32l053r8t6tr.step` / `stm32l053r8t6tr.glb` are the bare package body.++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [STMicroelectronics datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588905535344795648) (136 pp, sha256 `b30ef01e0e2d9c80`, retrieved 2026-10-08, tier: lcsc)+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-sonnet-5-5` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.+- **CAD:** KiCad official libraries (CC-BY-SA 4.0).++[Datasheet PDF](docs/stm32l053r8t6tr-datasheet.pdf)
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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": [+ {+ "file": "stm32l053r8t6tr.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": "2026-10-08",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ },+ {+ "file": "stm32l053r8t6tr-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": "f7d38e4cfbd0d9e48c23b68cc252be0fb22592915577caa29d27e53de9e35b98",+ "checked": "2026-10-08",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ }+ ]+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}