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STM32L051K8T7
Public Made by Adomby adom
STMicroelectronics Microcontrollers (MCU/MPU/SOC), LQFP-32(7x7). Pinout checked against ST's open pin data, KiCad symbol/footprint/3D.
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README.mdadded+68@@ -0,0 +1,68 @@+# STM32L051K8T7++**STMicroelectronics** · Microcontrollers (MCU/MPU/SOC) · LQFP-32(7x7)++STM32L051K8T7 from STMicroelectronics, in a LQFP-32(7x7). 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 | VDD | power_in | Digital supply pin; the features list gives a 1.65 V to 3.6 V power supply, with all voltages referenced to VSS. |+| 2 | PC14-OSC32_IN | bidirectional | 5 V tolerant (FT) I/O with additional function OSC32_IN for the 32 kHz oscillator; all I/Os are floating inputs during and after reset unless a note states otherwise. |+| 3 | PC15-OSC32_OUT (PC15) | bidirectional | Standard 3.3 V I/O (TC) with additional function OSC32_OUT for the 32 kHz oscillator. |+| 4 | NRST | bidirectional | Bidirectional reset pin with embedded weak pull-up resistor (RST I/O structure). |+| 5 | VDDA | power_in | Analog supply pin for the analog peripherals, with all voltages referenced to VSS. |+| 6 | PA0 | bidirectional | Standard 3.3 V I/O (TC) with alternate functions TIM2_CH1, USART2_CTS, TIM2_ETR and COMP1_OUT, and additional functions COMP1_INM6, ADC_IN0 and RTC_TAMP2/WKUP1. |+| 7 | PA1 | bidirectional | 5 V tolerant (FT) I/O with alternate functions EVENTOUT, TIM2_CH2, USART2_RTS/USART2_DE and TIM21_ETR, and additional functions COMP1_INP and ADC_IN1. |+| 8 | PA2 | bidirectional | 5 V tolerant (FT) I/O with alternate functions TIM21_CH1, TIM2_CH3, USART2_TX and COMP2_OUT, and additional functions COMP2_INM6 and ADC_IN2. |+| 9 | PA3 | bidirectional | 5 V tolerant (FT) I/O with alternate functions TIM21_CH2, TIM2_CH4 and USART2_RX, and additional functions COMP2_INP and ADC_IN3. |+| 10 | PA4 | bidirectional | Standard 3.3 V I/O (TC) with alternate functions SPI1_NSS, USART2_CK and TIM22_ETR, and additional functions COMP1_INM4, COMP2_INM4 and ADC_IN4. |+| 11 | PA5 | bidirectional | Standard 3.3 V I/O (TC) with alternate functions SPI1_SCK, TIM2_ETR and TIM2_CH1, and additional functions COMP1_INM5, COMP2_INM5 and ADC_IN5. |+| 12 | PA6 | bidirectional | 5 V tolerant (FT) I/O with alternate functions SPI1_MISO, LPUART1_CTS, TIM22_CH1, EVENTOUT and COMP1_OUT, and additional function ADC_IN6. |+| 13 | PA7 | bidirectional | 5 V tolerant (FT) I/O with alternate functions SPI1_MOSI, TIM22_CH2, EVENTOUT and COMP2_OUT, and additional function ADC_IN7. |+| 14 | PB0 | bidirectional | 5 V tolerant (FT) I/O with alternate function EVENTOUT, and additional functions ADC_IN8 and VREF_OUT. |+| 15 | PB1 | bidirectional | 5 V tolerant (FT) I/O with alternate function LPUART1_RTS/LPUART1_DE, and additional functions ADC_IN9 and VREF_OUT. |+| 16 | VSS | power_in | Ground pin; all voltages are referenced to VSS. |+| 17 | VDD | power_in | Digital supply pin; the features list gives a 1.65 V to 3.6 V power supply, with all voltages referenced to VSS. |+| 18 | PA8 | bidirectional | 5 V tolerant (FT) I/O with alternate functions MCO, EVENTOUT and USART1_CK. |+| 19 | PA9 | bidirectional | 5 V tolerant (FT) I/O with alternate functions MCO and USART1_TX. |+| 20 | PA10 | bidirectional | 5 V tolerant (FT) I/O with alternate function USART1_RX. |+| 21 | PA11 | bidirectional | 5 V tolerant (FT) I/O with alternate functions SPI1_MISO, EVENTOUT, USART1_CTS and COMP1_OUT. |+| 22 | PA12 | bidirectional | 5 V tolerant (FT) I/O with alternate functions SPI1_MOSI, EVENTOUT, USART1_RTS/USART1_DE and COMP2_OUT. |+| 23 | PA13 | bidirectional | 5 V tolerant (FT) I/O with alternate function SWDIO (serial wire debug data). |+| 24 | PA14 | bidirectional | 5 V tolerant (FT) I/O with alternate functions SWCLK (serial wire debug clock) and USART2_TX. |+| 25 | PA15 | bidirectional | 5 V tolerant (FT) I/O with alternate functions SPI1_NSS, TIM2_ETR, EVENTOUT, USART2_RX and TIM2_CH1. |+| 26 | PB3 | bidirectional | 5 V tolerant (FT) I/O with alternate functions SPI1_SCK, TIM2_CH2 and EVENTOUT, and additional function COMP2_INN. |+| 27 | PB4 | bidirectional | 5 V tolerant (FT) I/O with alternate functions SPI1_MISO, EVENTOUT and TIM22_CH1, and additional function COMP2_INP. |+| 28 | PB5 | bidirectional | 5 V tolerant (FT) I/O with alternate functions SPI1_MOSI, LPTIM1_IN1, I2C1_SMBA and TIM22_CH2, and additional function COMP2_INP. |+| 29 | PB6 | bidirectional | 5 V tolerant, FM+ capable (FTf) I/O with alternate functions USART1_TX, I2C1_SCL and LPTIM1_ETR, and additional function COMP2_INP. |+| 30 | PB7 | bidirectional | 5 V tolerant, FM+ capable (FTf) I/O with alternate functions USART1_RX, I2C1_SDA and LPTIM1_IN2, and additional functions COMP2_INP and PVD_IN. |+| 31 | BOOT0 | input | Dedicated BOOT0 pin used for boot mode selection. |+| 32 | VSS | power_in | Ground pin; all voltages are referenced to VSS. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | STMicroelectronics |+| Package | LQFP-32(7x7) |+| Category | Embedded Processors & Controllers |+| Pins | 32 |++## CAD (KiCad official)++- Symbol: `STM32L051K8T7`+- Footprint: `Package_QFP:LQFP-32_7x7mm_P0.8mm`+- 3D model: LQFP-32(7x7) (KiCad packages3D, STEP)+- 3D model files: `stm32l051k8t7-etched.step` / `stm32l051k8t7-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `stm32l051k8t7.step` / `stm32l051k8t7.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/8588922103155974144) (133 pp, sha256 `232fdca5c41218a1`, 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/stm32l051k8t7-datasheet.pdf)
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the features list gives a 1.65 V to 3.6 V power supply, with all voltages referenced to VSS."+ },+ {+ "number": "2",+ "name": "PC14-OSC32_IN",+ "type": "bidirectional",+ "description": "5 V tolerant (FT) I/O with additional function OSC32_IN for the 32 kHz oscillator; all I/Os are floating inputs during and after reset unless a note states otherwise."+ },+ {+ "number": "3",+ "name": "PC15-OSC32_OUT (PC15)",+ "type": "bidirectional",+ "description": "Standard 3.3 V I/O (TC) with additional function OSC32_OUT for the 32 kHz oscillator."+ },+ {+ "number": "4",+ "name": "NRST",+ "type": "bidirectional",+ "description": "Bidirectional reset pin with embedded weak pull-up resistor (RST I/O structure)."+ },+ {+ "number": "5",+ "name": "VDDA",+ "type": "power_in",+ "description": "Analog supply pin for the analog peripherals, with all voltages referenced to VSS."+ },+ {+ "number": "6",+ "name": "PA0",+ "type": "bidirectional",+ "description": "Standard 3.3 V I/O (TC) with alternate functions TIM2_CH1, USART2_CTS, TIM2_ETR and COMP1_OUT, and additional functions COMP1_INM6, ADC_IN0 and RTC_TAMP2/WKUP1."+ },+ {+ "number": "7",+ "name": "PA1",+ "type": "bidirectional",+ "description": "5 V tolerant (FT) I/O with alternate functions EVENTOUT, TIM2_CH2, USART2_RTS/USART2_DE and TIM21_ETR, and additional functions COMP1_INP and ADC_IN1."+ },+ {+ "number": "8",+ "name": "PA2",+ "type": "bidirectional",+ "description": "5 V tolerant (FT) I/O with alternate functions TIM21_CH1, TIM2_CH3, USART2_TX and COMP2_OUT, and additional functions COMP2_INM6 and ADC_IN2."+ },+ {+ "number": "9",+ "name": "PA3",+ "type": "bidirectional",+ "description": "5 V tolerant (FT) I/O with alternate functions TIM21_CH2, TIM2_CH4 and USART2_RX, and additional functions COMP2_INP and ADC_IN3."+ },+ {+ "number": "10",+ "name": "PA4",+ "type": "bidirectional",+ "description": "Standard 3.3 V I/O (TC) with alternate functions SPI1_NSS, USART2_CK and TIM22_ETR, and additional functions COMP1_INM4, COMP2_INM4 and ADC_IN4."+ },+ {+ "number": "11",+ "name": "PA5",+ "type": "bidirectional",+ "description": "Standard 3.3 V I/O (TC) with alternate functions SPI1_SCK, TIM2_ETR and TIM2_CH1, and additional functions COMP1_INM5, COMP2_INM5 and ADC_IN5."+ },+ {+ "number": "12",+ "name": "PA6",+ "type": "bidirectional",+ "description": "5 V tolerant (FT) I/O with alternate functions SPI1_MISO, LPUART1_CTS, TIM22_CH1, EVENTOUT and COMP1_OUT, and additional function ADC_IN6."+ },+ {+ "number": "13",+ "name": "PA7",+ "type": "bidirectional",+ "description": "5 V tolerant (FT) I/O with alternate functions SPI1_MOSI, TIM22_CH2, EVENTOUT and COMP2_OUT, and additional function ADC_IN7."+ },+ {+ "number": "14",+ "name": "PB0",+ "type": "bidirectional",+ "description": "5 V tolerant (FT) I/O with alternate function EVENTOUT, and additional functions ADC_IN8 and VREF_OUT."+ },+ {+ "number": "15",+ "name": "PB1",+ "type": "bidirectional",+ "description": "5 V tolerant (FT) I/O with alternate function LPUART1_RTS/LPUART1_DE, and additional functions ADC_IN9 and VREF_OUT."+ },+ {+ "number": "16",+ "name": "VSS",+ "type": "power_in",+ "description": "Ground pin; all voltages are referenced to VSS."+ },+ {+ "number": "17",+ "name": "VDD",+ "type": "power_in",+ "description": "Digital supply pin; the features list gives a 1.65 V to 3.6 V power supply, with all voltages referenced to VSS."+ },+ {+ "number": "18",+ "name": "PA8",+ "type": "bidirectional",+ "description": "5 V tolerant (FT) I/O with alternate functions MCO, EVENTOUT and USART1_CK."+ },+ {+ "number": "19",+ "name": "PA9",+ "type": "bidirectional",+ "description": "5 V tolerant (FT) I/O with alternate functions MCO and USART1_TX."+ },+ {+ "number": "20",+ "name": "PA10",+ "type": "bidirectional",+ "description": "5 V tolerant (FT) I/O with alternate function USART1_RX."+ },+ {+ "number": "21",+ "name": "PA11",+ "type": "bidirectional",+ "description": "5 V tolerant (FT) I/O with alternate functions SPI1_MISO, EVENTOUT, USART1_CTS and COMP1_OUT."+ },+ {+ "number": "22",+ "name": "PA12",+ "type": "bidirectional",+ "description": "5 V tolerant (FT) I/O with alternate functions SPI1_MOSI, EVENTOUT, USART1_RTS/USART1_DE and COMP2_OUT."+ },+ {+ "number": "23",+ "name": "PA13",+ "type": "bidirectional",+ "description": "5 V tolerant (FT) I/O with alternate function SWDIO (serial wire debug data)."+ },+ {+ "number": "24",+ "name": "PA14",+ "type": "bidirectional",+ "description": "5 V tolerant (FT) I/O with alternate functions SWCLK (serial wire debug clock) and USART2_TX."+ },+ {+ "number": "25",+ "name": "PA15",+ "type": "bidirectional",+ "description": "5 V tolerant (FT) I/O with alternate functions SPI1_NSS, TIM2_ETR, EVENTOUT, USART2_RX and TIM2_CH1."+ },+ {+ "number": "26",+ "name": "PB3",+ "type": "bidirectional",+ "description": "5 V tolerant (FT) I/O with alternate functions SPI1_SCK, TIM2_CH2 and EVENTOUT, and additional function COMP2_INN."+ },+ {+ "number": "27",+ "name": "PB4",+ "type": "bidirectional",+ "description": "5 V tolerant (FT) I/O with alternate functions SPI1_MISO, EVENTOUT and TIM22_CH1, and additional function COMP2_INP."+ },+ {+ "number": "28",+ "name": "PB5",+ "type": "bidirectional",+ "description": "5 V tolerant (FT) I/O with alternate functions SPI1_MOSI, LPTIM1_IN1, I2C1_SMBA and TIM22_CH2, and additional function COMP2_INP."+ },+ {+ "number": "29",+ "name": "PB6",+ "type": "bidirectional",+ "description": "5 V tolerant, FM+ capable (FTf) I/O with alternate functions USART1_TX, I2C1_SCL and LPTIM1_ETR, and additional function COMP2_INP."+ },+ {+ "number": "30",+ "name": "PB7",+ "type": "bidirectional",+ "description": "5 V tolerant, FM+ capable (FTf) I/O with alternate functions USART1_RX, I2C1_SDA and LPTIM1_IN2, and additional functions COMP2_INP and PVD_IN."+ },+ {+ "number": "31",+ "name": "BOOT0",+ "type": "input",+ "description": "Dedicated BOOT0 pin used for boot mode selection."+ },+ {+ "number": "32",+ "name": "VSS",+ "type": "power_in",+ "description": "Ground pin; all voltages are referenced to VSS."+ }+ ],+ "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 3 (PC15-OSC32_OUT) is listed as I/O structure TC in Table 15, but the revision history (rev 5) s; Pin 31 (BOOT0) is given only as pin type 'B' (dedicated BOOT0 pin) in Table 15. It is typed here as ; Table 15 note 1: PB9/12/13/14/15, PH0/1 and PC13 are not bonded on LQFP32 but should be configured a"+ ],+ "pages_sent": 59,+ "cost_usd": 0.2525,+ "at": "2026-10-08T04:51:27"+ },+ "datasheet": {+ "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588922103155974144",+ "pages": 133,+ "sha256": "232fdca5c41218a1",+ "source_tier": "lcsc"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 32,+ "described": 32,+ "cites_pages": true,+ "refuses_to_fabricate": true+ }+ },+ "viewers": {+ "symbol": "viewers/symbol.html",+ "footprint": "viewers/footprint.html"+ },+ "models_3d": [+ {+ "file": "stm32l051k8t7.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": "be0e412f1c66fee70039b0e109e0cc7c823161dda97593718afa97569bc61ce3",+ "checked": "2026-10-08",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ },+ {+ "file": "stm32l051k8t7-etched.step",+ "role": "eda",+ "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": "cfd54fc90c80d8d2bf9576ec1c378a48b44612b03e1aee2363ae231fba30bbb7",+ "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]"+ }+}