component
STM32L053C8T7
Public Made by Adomby adom
STMicroelectronics Microcontrollers (MCU/MPU/SOC), LQFP-48(7x7). Pinout checked against ST's open pin data, KiCad symbol/footprint/3D.
main
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{
"schema_version": 1,
"type": "component",
"slug": "stm32l053c8t7",
"title": "STM32L053C8T7",
"brief": "STMicroelectronics Microcontrollers (MCU/MPU/SOC), LQFP-48(7x7). Pinout checked against ST's open pin data, KiCad symbol/footprint/3D.",
"version": "0.1.0",
"license": "CC-BY-SA-4.0",
"tags": [
"component",
"embedded processors & controllers",
"stm32l053c8t7",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "STM32L053C8T7",
"manufacturer": "STMicroelectronics",
"package": "LQFP-48(7x7)",
"pin_count": 48,
"category": "Embedded Processors & Controllers",
"subcategory": "Microcontrollers (MCU/MPU/SOC)",
"datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588922721686601728",
"parts": {
"symbol": "stm32l053c8t7.kicad_sym",
"footprint": "stm32l053c8t7.kicad_mod",
"model_3d": "stm32l053c8t7-hero.glb",
"model_3d_plain": "stm32l053c8t7.glb",
"model_3d_step": "stm32l053c8t7-etched.step",
"model_3d_step_plain": "stm32l053c8t7.step",
"lbr": "stm32l053c8t7.lbr"
},
"distributor_links": {
"lcsc": "C1339355",
"digikey": "497-18945-ND",
"mouser": "511-STM32L053C8T7"
},
"distributor_check": {
"checked_at": "2026-10-08T19:58:19Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "497-18945-ND",
"status": "found"
},
"mouser": {
"pn": "511-STM32L053C8T7",
"status": "found"
}
},
"pins": [
{
"number": "1",
"name": "VLCD",
"type": "power_in",
"description": "LCD power supply pin for the optional LCD step-up converter; the datasheet gives no further voltage limit for this pin in the pin table."
},
{
"number": "2",
"name": "PC13",
"type": "bidirectional",
"description": "5 V tolerant (FT) I/O with additional functions RTC_TAMP1/RTC_TS/RTC_OUT/WKUP2; floating input during and after reset."
},
{
"number": "3",
"name": "PC14-OSC32_IN",
"type": "bidirectional",
"description": "5 V tolerant (FT) I/O that is also the 32 kHz oscillator input OSC32_IN; floating input during and after reset."
},
{
"number": "4",
"name": "PC15-OSC32_OUT",
"type": "bidirectional",
"description": "Standard 3.3 V (TC) I/O that is also the 32 kHz oscillator output OSC32_OUT; floating input during and after reset."
},
{
"number": "5",
"name": "PH0-OSC_IN",
"type": "bidirectional",
"description": "Standard 3.3 V (TC) I/O that is also the HSE oscillator input OSC_IN, with alternate function USB_CRS_SYNC."
},
{
"number": "6",
"name": "PH1-OSC_OUT",
"type": "bidirectional",
"description": "Standard 3.3 V (TC) I/O that is also the HSE oscillator output OSC_OUT."
},
{
"number": "7",
"name": "NRST",
"type": "bidirectional",
"description": "Bidirectional active-low reset pin with embedded weak pull-up resistor."
},
{
"number": "8",
"name": "VSSA",
"type": "power_in",
"description": "Analog ground supply pin for the ADC, DAC, comparators and reference."
},
{
"number": "9",
"name": "VDDA",
"type": "power_in",
"description": "Analog supply pin for the ADC, DAC, comparators and reference."
},
{
"number": "10",
"name": "PA0",
"type": "bidirectional",
"description": "Standard 3.3 V (TC) I/O with alternate functions TIM2_CH1, TSC_G1_IO1, USART2_CTS, TIM2_ETR, COMP1_OUT and additional functions COMP1_INM6, ADC_IN0, RTC_TAMP2/WKUP1."
},
{
"number": "11",
"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, TIM21_ETR and additional functions COMP1_INP, ADC_IN1."
},
{
"number": "12",
"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, COMP2_OUT and additional functions COMP2_INM6, ADC_IN2."
},
{
"number": "13",
"name": "PA3",
"type": "bidirectional",
"description": "5 V tolerant (FT) I/O with alternate functions TIM21_CH2, LCD_SEG2, TIM2_CH4, TSC_G1_IO4, USART2_RX and additional functions COMP2_INP, ADC_IN3."
},
{
"number": "14",
"name": "PA4",
"type": "bidirectional",
"description": "Standard 3.3 V (TC) I/O with reduced touch sensing sensitivity, so it is recommended to use it as a sampling capacitor I/O; alternate functions SPI1_NSS, TSC_G2_IO1, USART2_CK, TIM22_ETR and additional functions COMP1_INM4, COMP2_INM4, ADC_IN4, DAC_OUT."
},
{
"number": "15",
"name": "PA5",
"type": "bidirectional",
"description": "Standard 3.3 V (TC) I/O with alternate functions SPI1_SCK, TIM2_ETR, TSC_G2_IO2, TIM2_CH1 and additional functions COMP1_INM5, COMP2_INM5, ADC_IN5."
},
{
"number": "16",
"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, COMP1_OUT and additional function ADC_IN6."
},
{
"number": "17",
"name": "PA7",
"type": "bidirectional",
"description": "5 V tolerant (FT) I/O with alternate functions SPI1_MOSI, LCD_SEG4, TSC_G2_IO4, TIM22_CH2, EVENTOUT, COMP2_OUT and additional function ADC_IN7."
},
{
"number": "18",
"name": "PB0",
"type": "bidirectional",
"description": "5 V tolerant (FT) I/O with alternate functions EVENTOUT, LCD_SEG5, TSC_G3_IO2 and additional functions LCD_VLCD3, ADC_IN8, VREF_OUT."
},
{
"number": "19",
"name": "PB1",
"type": "bidirectional",
"description": "5 V tolerant (FT) I/O with alternate functions LCD_SEG6, TSC_G3_IO3, LPUART1_RTS/LPUART1_DE and additional functions ADC_IN9, VREF_OUT."
},
{
"number": "20",
"name": "PB2",
"type": "bidirectional",
"description": "5 V tolerant (FT) I/O with alternate functions LPTIM1_OUT, TSC_G3_IO4 and additional function LCD_VLCD2."
},
{
"number": "21",
"name": "PB10",
"type": "bidirectional",
"description": "5 V tolerant (FT) I/O with alternate functions LCD_SEG10, TIM2_CH3, TSC_SYNC, LPUART1_TX, SPI2_SCK, I2C2_SCL."
},
{
"number": "22",
"name": "PB11",
"type": "bidirectional",
"description": "5 V tolerant (FT) I/O with alternate functions EVENTOUT, LCD_SEG11, TIM2_CH4, TSC_G6_IO1, LPUART1_RX, I2C2_SDA."
},
{
"number": "23",
"name": "VSS",
"type": "power_in",
"description": "Ground supply pin."
},
{
"number": "24",
"name": "VDD",
"type": "power_in",
"description": "Digital supply pin (1.65 V to 3.6 V device supply range)."
},
{
"number": "25",
"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, EVENTOUT and additional function LCD_VLCD1."
},
{
"number": "26",
"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, TIM21_CH1."
},
{
"number": "27",
"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, TIM21_CH2."
},
{
"number": "28",
"name": "PB15",
"type": "bidirectional",
"description": "5 V tolerant (FT) I/O with alternate functions SPI2_MOSI/I2S2_SD, LCD_SEG15, RTC_REFIN."
},
{
"number": "29",
"name": "PA8",
"type": "bidirectional",
"description": "5 V tolerant (FT) I/O with alternate functions MCO, LCD_COM0, USB_CRS_SYNC, EVENTOUT, USART1_CK."
},
{
"number": "30",
"name": "PA9",
"type": "bidirectional",
"description": "5 V tolerant (FT) I/O with alternate functions MCO, LCD_COM1, TSC_G4_IO1, USART1_TX."
},
{
"number": "31",
"name": "PA10",
"type": "bidirectional",
"description": "5 V tolerant (FT) I/O with alternate functions LCD_COM2, TSC_G4_IO2, USART1_RX."
},
{
"number": "32",
"name": "PA11",
"type": "bidirectional",
"description": "5 V tolerant (FT) I/O powered by VDD_USB (note 2), with alternate functions SPI1_MISO, EVENTOUT, TSC_G4_IO3, USART1_CTS, COMP1_OUT and additional function USB_DM."
},
{
"number": "33",
"name": "PA12",
"type": "bidirectional",
"description": "5 V tolerant (FT) I/O powered by VDD_USB (note 2), with alternate functions SPI1_MOSI, EVENTOUT, TSC_G4_IO4, USART1_RTS/USART1_DE, COMP2_OUT and additional function USB_DP."
},
{
"number": "34",
"name": "PA13",
"type": "bidirectional",
"description": "5 V tolerant (FT) I/O with alternate functions SWDIO and USB_NOE."
},
{
"number": "35",
"name": "VSS",
"type": "power_in",
"description": "Ground supply pin."
},
{
"number": "36",
"name": "VDD_USB",
"type": "power_in",
"description": "Supply pin for the I/Os PA11 and PA12 and the USB; for characteristics that refer to VDD on those pins, VDD_USB must be used."
},
{
"number": "37",
"name": "PA14",
"type": "bidirectional",
"description": "5 V tolerant (FT) I/O with alternate functions SWCLK and USART2_TX."
},
{
"number": "38",
"name": "PA15",
"type": "bidirectional",
"description": "5 V tolerant (FT) I/O with alternate functions SPI1_NSS, LCD_SEG17, TIM2_ETR, EVENTOUT, USART2_RX, TIM2_CH1."
},
{
"number": "39",
"name": "PB3",
"type": "bidirectional",
"description": "5 V tolerant (FT) I/O with alternate functions SPI1_SCK, LCD_SEG7, TIM2_CH2, TSC_G5_IO1, EVENTOUT and additional function COMP2_INN."
},
{
"number": "40",
"name": "PB4",
"type": "bidirectional",
"description": "5 V tolerant (FT) I/O with alternate functions SPI1_MISO, LCD_SEG8, EVENTOUT, TSC_G5_IO2, TIM22_CH1 and additional function COMP2_INP."
},
{
"number": "41",
"name": "PB5",
"type": "bidirectional",
"description": "5 V tolerant (FT) I/O with alternate functions SPI1_MOSI, LCD_SEG9, LPTIM1_IN1, I2C1_SMBA, TIM22_CH2 and additional function COMP2_INP."
},
{
"number": "42",
"name": "PB6",
"type": "bidirectional",
"description": "5 V tolerant Fast Mode Plus capable (FTf) I/O with alternate functions USART1_TX, I2C1_SCL, LPTIM1_ETR, TSC_G5_IO3 and additional function COMP2_INP."
},
{
"number": "43",
"name": "PB7",
"type": "bidirectional",
"description": "5 V tolerant Fast Mode Plus capable (FTf) I/O with alternate functions USART1_RX, I2C1_SDA, LPTIM1_IN2, TSC_G5_IO4 and additional functions COMP2_INP, PVD_IN."
},
{
"number": "44",
"name": "BOOT0",
"type": "input",
"description": "Dedicated BOOT0 input pin used to select the boot mode."
},
{
"number": "45",
"name": "PB8",
"type": "bidirectional",
"description": "5 V tolerant Fast Mode Plus capable (FTf) I/O with alternate functions LCD_SEG16, TSC_SYNC, I2C1_SCL."
},
{
"number": "46",
"name": "PB9",
"type": "bidirectional",
"description": "5 V tolerant Fast Mode Plus capable (FTf) I/O with alternate functions LCD_COM3, EVENTOUT, I2C1_SDA, SPI2_NSS/I2S2_WS."
},
{
"number": "47",
"name": "VSS",
"type": "power_in",
"description": "Ground supply pin."
},
{
"number": "48",
"name": "VDD",
"type": "power_in",
"description": "Digital supply pin (1.65 V to 3.6 V device supply range)."
}
],
"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 descriptions are compiled from Table 15 (pin definitions) and Table 14 (legend). The datasheet g; Pin 39 (PB3) is printed as TSC_G5I_O1 in Table 15 and Table 17. Table 8 gives the same signal as TSC; Pin types were mapped from Table 14 and KiCad classes: supply pins as power_in, I/O as bidirectional"
],
"pages_sent": 56,
"cost_usd": 0.273,
"at": "2026-10-08T19:57:55"
},
"datasheet": {
"url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588922721686601728",
"pages": 136,
"sha256": "b30ef01e0e2d9c80",
"source_tier": "lcsc"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 48,
"described": 48,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
},
"models_3d": [
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"file": "stm32l053c8t7.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
9,
9,
1.5
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "9dea352d93177c2904afd7d7b68ea8855ce1ab691f69f8b3e13655600514b6bf",
"checked": "2026-10-08",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "stm32l053c8t7-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
9,
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"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "305183ed31692828d5b28c0899425bf5ebe5fd2b76f43930f08531fa34ffd95f",
"checked": "2026-10-08",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
},
"metadata": {
"specs": {
"Manufacturer": "STMicroelectronics",
"Package": "LQFP-48(7x7)",
"Category": "Embedded Processors & Controllers",
"Pins": "48"
}
},
"variants": [],
"sections": [
"hero",
"viewers",
"readme",
"breadcrumbs",
"info"
],
"discovery_triggers": [
"stm32l053c8t7"
],
"discovery_pitch": "STM32L053C8T7 (STMicroelectronics) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
"author": {
"name": "Ray",
"email": "[email protected]"
},
"dependencies": {},
"hero": {
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"path": "docs/hero.png"
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"files": [
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}