component
STM32L053R8H6
Public Made by Adomby adom
STMicroelectronics Microcontrollers (MCU/MPU/SOC), TFBGA-64. Pinout checked against ST's open pin data, KiCad symbol/footprint/3D.
main
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{
"schema_version": 1,
"type": "component",
"slug": "stm32l053r8h6",
"title": "STM32L053R8H6",
"brief": "STMicroelectronics Microcontrollers (MCU/MPU/SOC), TFBGA-64. 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",
"stm32l053r8h6",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "STM32L053R8H6",
"manufacturer": "STMicroelectronics",
"package": "TFBGA-64",
"pin_count": 64,
"category": "Embedded Processors & Controllers",
"subcategory": "Microcontrollers (MCU/MPU/SOC)",
"datasheet": "https://www.st.com/resource/en/datasheet/stm32l053r8h6.pdf",
"parts": {
"symbol": "stm32l053r8h6.kicad_sym",
"footprint": "stm32l053r8h6.kicad_mod",
"model_3d": "stm32l053r8h6-hero.glb",
"model_3d_plain": "stm32l053r8h6-etched.glb",
"model_3d_step": "stm32l053r8h6-etched.step",
"model_3d_step_plain": "stm32l053r8h6.step",
"lbr": "stm32l053r8h6.lbr"
},
"distributor_links": {
"lcsc": "C1340186",
"digikey": "497-19190-ND",
"mouser": "511-STM32L053R8H6"
},
"distributor_check": {
"checked_at": "2026-11-05T23:52:37Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "497-19190-ND",
"status": "found"
},
"mouser": {
"pn": "511-STM32L053R8H6",
"status": "found"
}
},
"pins": [
{
"number": "A1",
"name": "PC14-OSC32_IN",
"type": "bidirectional",
"description": "FT 5 V tolerant I/O; alternate function OSC32_IN for the 32.768 kHz oscillator, and floating input during and after reset."
},
{
"number": "A2",
"name": "PC13",
"type": "bidirectional",
"description": "FT 5 V tolerant I/O; additional functions RTC_TAMP1/RTC_TS/RTC_OUT/WKUP2, and floating input during and after reset."
},
{
"number": "A3",
"name": "PB9",
"type": "bidirectional",
"description": "FTf 5 V tolerant I/O with Fast Mode Plus capability; alternate functions LCD_COM3, EVENTOUT, I2C1_SDA and SPI2_NSS/I2S2_WS."
},
{
"number": "A4",
"name": "PB4",
"type": "bidirectional",
"description": "FT 5 V tolerant I/O; alternate functions SPI1_MISO, LCD_SEG8, EVENTOUT, TSC_G5_IO2 and TIM22_CH1; additional function COMP2_INP."
},
{
"number": "A5",
"name": "PB3",
"type": "bidirectional",
"description": "FT 5 V tolerant I/O; alternate functions SPI1_SCK, LCD_SEG7, TIM2_CH2, TSC_G5_IO1 and EVENTOUT; additional function COMP2_INN."
},
{
"number": "A6",
"name": "PA15",
"type": "bidirectional",
"description": "FT 5 V tolerant I/O; alternate functions SPI1_NSS, LCD_SEG17, TIM2_ETR, EVENTOUT, USART2_RX and TIM2_CH1."
},
{
"number": "A7",
"name": "PA14",
"type": "bidirectional",
"description": "FT 5 V tolerant I/O; alternate functions SWCLK and USART2_TX."
},
{
"number": "A8",
"name": "PA13",
"type": "bidirectional",
"description": "FT 5 V tolerant I/O; alternate functions SWDIO and USB_NOE."
},
{
"number": "B1",
"name": "PC15-OSC32_OUT",
"type": "bidirectional",
"description": "Standard TC 3.3 V I/O; alternate function OSC32_OUT for the 32.768 kHz oscillator."
},
{
"number": "B2",
"name": "VLCD",
"type": "power_in",
"description": "LCD supply pin (VLCD) for the LCD controller, listed as a supply pin in the pin definition table."
},
{
"number": "B3",
"name": "PB8",
"type": "bidirectional",
"description": "FTf 5 V tolerant I/O with Fast Mode Plus capability; alternate functions LCD_SEG16, TSC_SYNC and I2C1_SCL."
},
{
"number": "B4",
"name": "BOOT0",
"type": "input",
"description": "Dedicated BOOT0 pin (type B, input) that selects the boot mode."
},
{
"number": "B5",
"name": "PD2",
"type": "bidirectional",
"description": "FT 5 V tolerant I/O; alternate functions LPUART1_RTS/LPUART1_DE and LCD_COM7/LCD_SEG31/LCD_SEG43."
},
{
"number": "B6",
"name": "PC11",
"type": "bidirectional",
"description": "FT 5 V tolerant I/O; alternate functions LPUART1_RX and LCD_COM5/LCD_SEG29/LCD_SEG41."
},
{
"number": "B7",
"name": "PC10",
"type": "bidirectional",
"description": "FT 5 V tolerant I/O; alternate functions LPUART1_TX and LCD_COM4/LCD_SEG28/LCD_SEG40."
},
{
"number": "B8",
"name": "PA12",
"type": "bidirectional",
"description": "FT 5 V tolerant I/O powered by VDD_USB; alternate functions SPI1_MOSI, EVENTOUT, TSC_G4_IO4, USART1_RTS/USART1_DE, USB_DP and COMP2_OUT."
},
{
"number": "C1",
"name": "PH0-OSC_IN",
"type": "bidirectional",
"description": "Standard TC 3.3 V I/O; alternate function OSC_IN for the high-speed oscillator input and USB_CRS_SYNC."
},
{
"number": "C2",
"name": "VSS",
"type": "power_in",
"description": "Ground supply pin."
},
{
"number": "C3",
"name": "PB7",
"type": "bidirectional",
"description": "FTf 5 V tolerant I/O with Fast Mode Plus capability; alternate functions USART1_RX, I2C1_SDA, LPTIM1_IN2 and TSC_G5_IO4; additional functions COMP2_INP and PVD_IN."
},
{
"number": "C4",
"name": "PB5",
"type": "bidirectional",
"description": "FT 5 V tolerant I/O; alternate functions SPI1_MOSI, LCD_SEG9, LPTIM1_IN1, I2C1_SMBA and TIM22_CH2; additional function COMP2_INP."
},
{
"number": "C5",
"name": "PC12",
"type": "bidirectional",
"description": "FT 5 V tolerant I/O; alternate function LCD_COM6/LCD_SEG30/LCD_SEG42."
},
{
"number": "C6",
"name": "PA10",
"type": "bidirectional",
"description": "FT 5 V tolerant I/O; alternate functions LCD_COM2, TSC_G4_IO2 and USART1_RX."
},
{
"number": "C7",
"name": "PA9",
"type": "bidirectional",
"description": "FT 5 V tolerant I/O; alternate functions MCO, LCD_COM1, TSC_G4_IO1 and USART1_TX."
},
{
"number": "C8",
"name": "PA11",
"type": "bidirectional",
"description": "FT 5 V tolerant I/O powered by VDD_USB; alternate functions SPI1_MISO, EVENTOUT, TSC_G4_IO3, USART1_CTS and USB_DM; additional function COMP1_OUT."
},
{
"number": "D1",
"name": "PH1-OSC_OUT",
"type": "bidirectional",
"description": "Standard TC 3.3 V I/O; alternate function OSC_OUT for the high-speed oscillator output."
},
{
"number": "D2",
"name": "VDD",
"type": "power_in",
"description": "Positive supply pin of the device."
},
{
"number": "D3",
"name": "PB6",
"type": "bidirectional",
"description": "FTf 5 V tolerant I/O with Fast Mode Plus capability; alternate functions USART1_TX, I2C1_SCL, LPTIM1_ETR and TSC_G5_IO3; additional function COMP2_INP."
},
{
"number": "D4",
"name": "VSS",
"type": "power_in",
"description": "Ground supply pin."
},
{
"number": "D5",
"name": "VSS",
"type": "power_in",
"description": "Ground supply pin."
},
{
"number": "D6",
"name": "VSS",
"type": "power_in",
"description": "Ground supply pin."
},
{
"number": "D7",
"name": "PA8",
"type": "bidirectional",
"description": "FT 5 V tolerant I/O; alternate functions MCO, LCD_COM0, USB_CRS_SYNC, EVENTOUT and USART1_CK."
},
{
"number": "D8",
"name": "PC9",
"type": "bidirectional",
"description": "FT 5 V tolerant I/O; alternate functions TIM21_ETR, LCD_SEG27, 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": "FT 5 V tolerant I/O; alternate functions LPTIM1_OUT, LCD_SEG19, EVENTOUT and TSC_G7_IO2; additional function ADC_IN11."
},
{
"number": "E3",
"name": "PC0",
"type": "bidirectional",
"description": "FT 5 V tolerant I/O; alternate functions LPTIM1_IN1, LCD_SEG18, EVENTOUT and TSC_G7_IO1; additional function ADC_IN10."
},
{
"number": "E4",
"name": "VDD",
"type": "power_in",
"description": "Positive supply pin of the device."
},
{
"number": "E5",
"name": "VDD",
"type": "power_in",
"description": "Positive supply pin of the device."
},
{
"number": "E6",
"name": "VDD_USB",
"type": "power_in",
"description": "Supply pin for the I/Os PA11 and PA12; for all characteristics that refer to VDD, VDD_USB must be used instead."
},
{
"number": "E7",
"name": "PC7",
"type": "bidirectional",
"description": "FT 5 V tolerant I/O; alternate functions TIM22_CH2, LCD_SEG25 and TSC_G8_IO2."
},
{
"number": "E8",
"name": "PC8",
"type": "bidirectional",
"description": "FT 5 V tolerant I/O; alternate functions TIM22_ETR, LCD_SEG26 and TSC_G8_IO3."
},
{
"number": "F1",
"name": "VSSA",
"type": "power_in",
"description": "Analog ground supply pin."
},
{
"number": "F2",
"name": "PC2",
"type": "bidirectional",
"description": "FT 5 V tolerant I/O; alternate functions LPTIM1_IN2, LCD_SEG20, SPI2_MISO/I2S2_MCK and TSC_G7_IO3; additional function ADC_IN12."
},
{
"number": "F3",
"name": "PA2",
"type": "bidirectional",
"description": "FT 5 V tolerant I/O; alternate functions TIM21_CH1, LCD_SEG1, TIM2_CH3, TSC_G1_IO3, USART2_TX and COMP2_OUT; additional functions COMP2_INM6 and ADC_IN2."
},
{
"number": "F4",
"name": "PA5",
"type": "bidirectional",
"description": "Standard TC 3.3 V I/O; alternate functions SPI1_SCK, TIM2_ETR, TSC_G2_IO2 and TIM2_CH1; additional functions COMP1_INM5, COMP2_INM5 and ADC_IN5."
},
{
"number": "F5",
"name": "PB0",
"type": "bidirectional",
"description": "FT 5 V tolerant I/O; alternate functions EVENTOUT, LCD_SEG5 and TSC_G3_IO2; additional functions LCD_VLCD3, ADC_IN8 and VREF_OUT."
},
{
"number": "F6",
"name": "PC6",
"type": "bidirectional",
"description": "FT 5 V tolerant I/O; alternate functions TIM22_CH1, LCD_SEG24 and TSC_G8_IO1."
},
{
"number": "F7",
"name": "PB15",
"type": "bidirectional",
"description": "FT 5 V tolerant I/O; alternate functions SPI2_MOSI/I2S2_SD and LCD_SEG15; additional function RTC_REFIN."
},
{
"number": "F8",
"name": "PB14",
"type": "bidirectional",
"description": "FTf 5 V tolerant I/O with Fast Mode Plus capability; alternate functions SPI2_MISO/I2S2_MCK, LCD_SEG14, RTC_OUT, TSC_G6_IO4, LPUART1_RTS/LPUART1_DE, I2C2_SDA and TIM21_CH2."
},
{
"number": "G1",
"name": "VREF+",
"type": "power_in",
"description": "Input reference voltage pin for the ADC and DAC."
},
{
"number": "G2",
"name": "PA0",
"type": "bidirectional",
"description": "Standard TC 3.3 V I/O; alternate functions TIM2_CH1, TSC_G1_IO1, USART2_CTS, TIM2_ETR and COMP1_OUT; additional functions COMP1_INM6, ADC_IN0 and RTC_TAMP2/WKUP1."
},
{
"number": "G3",
"name": "PA3",
"type": "bidirectional",
"description": "FT 5 V tolerant I/O; alternate functions TIM21_CH2, LCD_SEG2, TIM2_CH4, TSC_G1_IO4 and USART2_RX; additional functions COMP2_INP and ADC_IN3."
},
{
"number": "G4",
"name": "PA6",
"type": "bidirectional",
"description": "FT 5 V tolerant I/O; alternate functions SPI1_MISO, LCD_SEG3, TSC_G2_IO3, LPUART1_CTS, TIM22_CH1, EVENTOUT and COMP1_OUT; additional function ADC_IN6."
},
{
"number": "G5",
"name": "PB1",
"type": "bidirectional",
"description": "FT 5 V tolerant I/O; alternate functions LCD_SEG6, TSC_G3_IO3 and LPUART1_RTS/LPUART1_DE; additional functions ADC_IN9 and VREF_OUT."
},
{
"number": "G6",
"name": "PB2",
"type": "bidirectional",
"description": "FT 5 V tolerant I/O; alternate functions LPTIM1_OUT and TSC_G3_IO4; additional function LCD_VLCD2."
},
{
"number": "G7",
"name": "PB10",
"type": "bidirectional",
"description": "FT 5 V tolerant I/O; alternate functions LCD_SEG10, TIM2_CH3, TSC_SYNC, LPUART1_TX, SPI2_SCK and I2C2_SCL."
},
{
"number": "G8",
"name": "PB13",
"type": "bidirectional",
"description": "FTf 5 V tolerant I/O with Fast Mode Plus capability; alternate functions SPI2_SCK/I2S2_CK, LCD_SEG13, TSC_G6_IO3, LPUART1_CTS, I2C2_SCL and TIM21_CH1."
},
{
"number": "H1",
"name": "VDDA",
"type": "power_in",
"description": "Analog supply pin of the device."
},
{
"number": "H2",
"name": "PA1",
"type": "bidirectional",
"description": "FT 5 V tolerant I/O; alternate functions EVENTOUT, LCD_SEG0, TIM2_CH2, TSC_G1_IO2, USART2_RTS/USART2_DE and TIM21_ETR; additional functions COMP1_INP and ADC_IN1."
},
{
"number": "H3",
"name": "PA4",
"type": "bidirectional",
"description": "Standard TC 3.3 V I/O with reduced touch sensing sensitivity; alternate functions SPI1_NSS, TSC_G2_IO1, USART2_CK and TIM22_ETR; additional functions COMP1_INM4, COMP2_INM4, ADC_IN4 and DAC_OUT."
},
{
"number": "H4",
"name": "PA7",
"type": "bidirectional",
"description": "FT 5 V tolerant I/O; alternate functions SPI1_MOSI, LCD_SEG4, TSC_G2_IO4, TIM22_CH2, EVENTOUT and COMP2_OUT; additional function ADC_IN7."
},
{
"number": "H5",
"name": "PC4",
"type": "bidirectional",
"description": "FT 5 V tolerant I/O; alternate functions EVENTOUT, LCD_SEG22 and LPUART1_TX; additional function ADC_IN14."
},
{
"number": "H6",
"name": "PC5",
"type": "bidirectional",
"description": "FT 5 V tolerant I/O; alternate functions LCD_SEG23, LPUART1_RX and TSC_G3_IO1; additional function ADC_IN15."
},
{
"number": "H7",
"name": "PB11",
"type": "bidirectional",
"description": "FT 5 V tolerant I/O; alternate functions EVENTOUT, LCD_SEG11, TIM2_CH4, TSC_G6_IO1, LPUART1_RX and I2C2_SDA."
},
{
"number": "H8",
"name": "PB12",
"type": "bidirectional",
"description": "FT 5 V tolerant I/O; alternate functions SPI2_NSS/I2S2_WS, LCD_SEG12, LPUART1_RTS/LPUART1_DE, TSC_G6_IO2, I2C2_SMBA and EVENTOUT; additional function LCD_VLCD1."
}
],
"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: PC3 has no TFBGA64 ball in Table 15 (listed as '-'), so it is omitted. Per-pin voltage and current l",
"1/64 pin names appear NOWHERE in the datasheet text: ['G1:VREF+@p41']"
],
"pages_sent": 56,
"cost_usd": 0.0971,
"at": "2026-11-05T23:52:24"
},
"datasheet": {
"url": "https://www.st.com/resource/en/datasheet/stm32l053r8h6.pdf",
"pages": 136,
"sha256": "b30ef01e0e2d9c80",
"source_tier": "mfr"
},
"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": "stm32l053r8h6.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
5,
5,
1.21
],
"zmin_mm": -0.008,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "7125823590a819a0f6fa72e42ba51148d58f5a55617c48349c05479572466de8",
"checked": "2026-11-05",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "stm32l053r8h6-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
5,
5,
1.21
],
"zmin_mm": -0.008,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "1c700c148bf2eca1dd7d34eaf98262d1241c0774cfa21abe37f3adfbfb82ba3d",
"checked": "2026-11-05",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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