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STM32L071KZT6
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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 @@+# STM32L071KZT6++**STMicroelectronics** · Microcontrollers (MCU/MPU/SOC) · LQFP-32(7x7)++STM32L071KZT6 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 | Main digital power supply; the datasheet gives a 1.65 V to 3.6 V supply range for the device. |+| 2 | PC14-OSC32_IN | bidirectional | Five-volt tolerant (FT) general-purpose I/O, also serving as OSC32_IN for the 32.768 kHz LSE crystal. |+| 3 | PC15-OSC32_OUT | bidirectional | Standard 3.3 V I/O (TC), also serving as OSC32_OUT for the 32.768 kHz LSE crystal. |+| 4 | NRST | bidirectional | Bidirectional reset pin with an embedded weak pull-up resistor. |+| 5 | VDDA | power_in | Analog power supply for the ADC, comparators and internal reference; the revision history gives a VDDA minimum of 1.65 V. |+| 6 | PA0 | bidirectional | I/O with TTa structure; alternate functions include TIM2_CH1, USART2_CTS, TIM2_ETR, USART4_TX and COMP1_OUT, and additional functions include ADC_IN0, COMP1_INM and RTC_TAMP2/WKUP1. |+| 7 | PA1 | bidirectional | Five-volt tolerant (FT) I/O; alternate functions include EVENTOUT, TIM2_CH2, USART2_RTS/USART2_DE, TIM21_ETR and USART4_RX, and additional functions include ADC_IN1 and COMP1_INP. |+| 8 | PA2 | bidirectional | Five-volt tolerant (FT) I/O; alternate functions include TIM21_CH1, TIM2_CH3, USART2_TX, LPUART1_TX and COMP2_OUT, and additional functions include ADC_IN2 and COMP2_INM. |+| 9 | PA3 | bidirectional | Five-volt tolerant (FT) I/O; alternate functions include TIM21_CH2, TIM2_CH4, USART2_RX and LPUART1_RX, and additional functions include ADC_IN3 and COMP2_INP. |+| 10 | PA4 | bidirectional | Standard 3.3 V I/O (TC); alternate functions include SPI1_NSS, USART2_CK and TIM22_ETR, and additional functions include ADC_IN4, COMP1_INM and COMP2_INM. |+| 11 | PA5 | bidirectional | Standard 3.3 V I/O (TC); alternate functions include SPI1_SCK, TIM2_ETR and TIM2_CH1, and additional functions include ADC_IN5, COMP1_INM and COMP2_INM. |+| 12 | PA6 | bidirectional | Five-volt tolerant (FT) I/O; alternate functions include SPI1_MISO, TIM3_CH1, LPUART1_CTS, TIM22_CH1, EVENTOUT and COMP1_OUT, and additional function ADC_IN6. |+| 13 | PA7 | bidirectional | Five-volt tolerant (FT) I/O; alternate functions include SPI1_MOSI, TIM3_CH2, TIM22_CH2, EVENTOUT and COMP2_OUT, and additional function ADC_IN7. |+| 14 | PB0 | bidirectional | Five-volt tolerant (FT) I/O; alternate functions include EVENTOUT and TIM3_CH3, and additional functions include ADC_IN8 and VREF_OUT. |+| 15 | PB1 | bidirectional | Five-volt tolerant (FT) I/O; alternate functions include TIM3_CH4 and LPUART1_RTS/LPUART1_DE, and additional functions include ADC_IN9 and VREF_OUT. |+| 16 | VSS | power_in | Ground reference pin; all voltages in the datasheet are referenced to VSS. |+| 17 | VDD | power_in | Main digital power supply; the datasheet gives a 1.65 V to 3.6 V supply range for the device. |+| 18 | PA8 | bidirectional | Five-volt tolerant (FTf, Fast Mode Plus capable) I/O; alternate functions include MCO, EVENTOUT, USART1_CK and I2C3_SCL. |+| 19 | PA9 | bidirectional | Five-volt tolerant (FTf, Fast Mode Plus capable) I/O; alternate functions include MCO, USART1_TX, I2C1_SCL and I2C3_SMBA. |+| 20 | PA10 | bidirectional | Five-volt tolerant (FTf, Fast Mode Plus capable) I/O; alternate functions include USART1_RX and I2C1_SDA. |+| 21 | PA11 | bidirectional | Five-volt tolerant (FT) I/O; alternate functions include SPI1_MISO, EVENTOUT, USART1_CTS and COMP1_OUT. |+| 22 | PA12 | bidirectional | Five-volt tolerant (FT) I/O; alternate functions include SPI1_MOSI, EVENTOUT, USART1_RTS/USART1_DE and COMP2_OUT. |+| 23 | PA13 | bidirectional | Five-volt tolerant (FT) I/O; alternate functions include SWDIO (serial wire debug data) and LPUART1_RX. |+| 24 | PA14 | bidirectional | Five-volt tolerant (FT) I/O; alternate functions include SWCLK (serial wire debug clock), USART2_TX and LPUART1_TX. |+| 25 | PA15 | bidirectional | Five-volt tolerant (FT) I/O; alternate functions include SPI1_NSS, TIM2_ETR, EVENTOUT, USART2_RX, TIM2_CH1 and USART4_RTS/USART4_DE. |+| 26 | PB3 | bidirectional | Five-volt tolerant (FT) I/O; alternate functions include SPI1_SCK, TIM2_CH2, EVENTOUT, USART1_RTS/USART1_DE and USART5_TX, and additional function COMP2_INM. |+| 27 | PB4 | bidirectional | Five-volt tolerant (FTf, Fast Mode Plus capable) I/O; alternate functions include SPI1_MISO, TIM3_CH1, TIM22_CH1, USART1_CTS, USART5_RX and I2C3_SDA, and additional function COMP2_INP. |+| 28 | PB5 | bidirectional | Five-volt tolerant (FT) I/O; alternate functions include SPI1_MOSI, LPTIM1_IN1, I2C1_SMBA, TIM3_CH2/TIM22_CH2, USART1_CK, USART5_CK and USART5_RTS/USART5_DE, and additional function COMP2_INP. |+| 29 | PB6 | bidirectional | Five-volt tolerant (FTf, Fast Mode Plus capable) I/O; alternate functions include USART1_TX, I2C1_SCL and LPTIM1_ETR, and additional function COMP2_INP. |+| 30 | PB7 | bidirectional | Five-volt tolerant (FTf, Fast Mode Plus capable) I/O; alternate functions include USART1_RX, I2C1_SDA, LPTIM1_IN2 and USART4_CTS, and additional functions COMP2_INP and VREF_PVD_IN. |+| 31 | BOOT0 | input | Dedicated BOOT0 pin used for boot mode selection. |+| 32 | VSS | power_in | Ground reference pin; all voltages in the datasheet are referenced to VSS. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | STMicroelectronics |+| Package | LQFP-32(7x7) |+| Category | Embedded Processors & Controllers |+| Pins | 32 |++## CAD (KiCad official)++- Symbol: `STM32L071KZT6`+- Footprint: `Package_QFP:LQFP-32_7x7mm_P0.8mm`+- 3D model: LQFP-32(7x7) (KiCad packages3D, STEP)+- 3D model files: `stm32l071kzt6-etched.step` / `stm32l071kzt6-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `stm32l071kzt6.step` / `stm32l071kzt6.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/8588886723903938560) (148 pp, sha256 `e1c4c9ce19ae345c`, 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/stm32l071kzt6-datasheet.pdf)
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the datasheet gives a 1.65 V to 3.6 V supply range for the device."+ },+ {+ "number": "2",+ "name": "PC14-OSC32_IN",+ "type": "bidirectional",+ "description": "Five-volt tolerant (FT) general-purpose I/O, also serving as OSC32_IN for the 32.768 kHz LSE crystal."+ },+ {+ "number": "3",+ "name": "PC15-OSC32_OUT",+ "type": "bidirectional",+ "description": "Standard 3.3 V I/O (TC), also serving as OSC32_OUT for the 32.768 kHz LSE crystal."+ },+ {+ "number": "4",+ "name": "NRST",+ "type": "bidirectional",+ "description": "Bidirectional reset pin with an embedded weak pull-up resistor."+ },+ {+ "number": "5",+ "name": "VDDA",+ "type": "power_in",+ "description": "Analog power supply for the ADC, comparators and internal reference; the revision history gives a VDDA minimum of 1.65 V."+ },+ {+ "number": "6",+ "name": "PA0",+ "type": "bidirectional",+ "description": "I/O with TTa structure; alternate functions include TIM2_CH1, USART2_CTS, TIM2_ETR, USART4_TX and COMP1_OUT, and additional functions include ADC_IN0, COMP1_INM and RTC_TAMP2/WKUP1."+ },+ {+ "number": "7",+ "name": "PA1",+ "type": "bidirectional",+ "description": "Five-volt tolerant (FT) I/O; alternate functions include EVENTOUT, TIM2_CH2, USART2_RTS/USART2_DE, TIM21_ETR and USART4_RX, and additional functions include ADC_IN1 and COMP1_INP."+ },+ {+ "number": "8",+ "name": "PA2",+ "type": "bidirectional",+ "description": "Five-volt tolerant (FT) I/O; alternate functions include TIM21_CH1, TIM2_CH3, USART2_TX, LPUART1_TX and COMP2_OUT, and additional functions include ADC_IN2 and COMP2_INM."+ },+ {+ "number": "9",+ "name": "PA3",+ "type": "bidirectional",+ "description": "Five-volt tolerant (FT) I/O; alternate functions include TIM21_CH2, TIM2_CH4, USART2_RX and LPUART1_RX, and additional functions include ADC_IN3 and COMP2_INP."+ },+ {+ "number": "10",+ "name": "PA4",+ "type": "bidirectional",+ "description": "Standard 3.3 V I/O (TC); alternate functions include SPI1_NSS, USART2_CK and TIM22_ETR, and additional functions include ADC_IN4, COMP1_INM and COMP2_INM."+ },+ {+ "number": "11",+ "name": "PA5",+ "type": "bidirectional",+ "description": "Standard 3.3 V I/O (TC); alternate functions include SPI1_SCK, TIM2_ETR and TIM2_CH1, and additional functions include ADC_IN5, COMP1_INM and COMP2_INM."+ },+ {+ "number": "12",+ "name": "PA6",+ "type": "bidirectional",+ "description": "Five-volt tolerant (FT) I/O; alternate functions include SPI1_MISO, TIM3_CH1, LPUART1_CTS, TIM22_CH1, EVENTOUT and COMP1_OUT, and additional function ADC_IN6."+ },+ {+ "number": "13",+ "name": "PA7",+ "type": "bidirectional",+ "description": "Five-volt tolerant (FT) I/O; alternate functions include SPI1_MOSI, TIM3_CH2, TIM22_CH2, EVENTOUT and COMP2_OUT, and additional function ADC_IN7."+ },+ {+ "number": "14",+ "name": "PB0",+ "type": "bidirectional",+ "description": "Five-volt tolerant (FT) I/O; alternate functions include EVENTOUT and TIM3_CH3, and additional functions include ADC_IN8 and VREF_OUT."+ },+ {+ "number": "15",+ "name": "PB1",+ "type": "bidirectional",+ "description": "Five-volt tolerant (FT) I/O; alternate functions include TIM3_CH4 and LPUART1_RTS/LPUART1_DE, and additional functions include ADC_IN9 and VREF_OUT."+ },+ {+ "number": "16",+ "name": "VSS",+ "type": "power_in",+ "description": "Ground reference pin; all voltages in the datasheet are referenced to VSS."+ },+ {+ "number": "17",+ "name": "VDD",+ "type": "power_in",+ "description": "Main digital power supply; the datasheet gives a 1.65 V to 3.6 V supply range for the device."+ },+ {+ "number": "18",+ "name": "PA8",+ "type": "bidirectional",+ "description": "Five-volt tolerant (FTf, Fast Mode Plus capable) I/O; alternate functions include MCO, EVENTOUT, USART1_CK and I2C3_SCL."+ },+ {+ "number": "19",+ "name": "PA9",+ "type": "bidirectional",+ "description": "Five-volt tolerant (FTf, Fast Mode Plus capable) I/O; alternate functions include MCO, USART1_TX, I2C1_SCL and I2C3_SMBA."+ },+ {+ "number": "20",+ "name": "PA10",+ "type": "bidirectional",+ "description": "Five-volt tolerant (FTf, Fast Mode Plus capable) I/O; alternate functions include USART1_RX and I2C1_SDA."+ },+ {+ "number": "21",+ "name": "PA11",+ "type": "bidirectional",+ "description": "Five-volt tolerant (FT) I/O; alternate functions include SPI1_MISO, EVENTOUT, USART1_CTS and COMP1_OUT."+ },+ {+ "number": "22",+ "name": "PA12",+ "type": "bidirectional",+ "description": "Five-volt tolerant (FT) I/O; alternate functions include SPI1_MOSI, EVENTOUT, USART1_RTS/USART1_DE and COMP2_OUT."+ },+ {+ "number": "23",+ "name": "PA13",+ "type": "bidirectional",+ "description": "Five-volt tolerant (FT) I/O; alternate functions include SWDIO (serial wire debug data) and LPUART1_RX."+ },+ {+ "number": "24",+ "name": "PA14",+ "type": "bidirectional",+ "description": "Five-volt tolerant (FT) I/O; alternate functions include SWCLK (serial wire debug clock), USART2_TX and LPUART1_TX."+ },+ {+ "number": "25",+ "name": "PA15",+ "type": "bidirectional",+ "description": "Five-volt tolerant (FT) I/O; alternate functions include SPI1_NSS, TIM2_ETR, EVENTOUT, USART2_RX, TIM2_CH1 and USART4_RTS/USART4_DE."+ },+ {+ "number": "26",+ "name": "PB3",+ "type": "bidirectional",+ "description": "Five-volt tolerant (FT) I/O; alternate functions include SPI1_SCK, TIM2_CH2, EVENTOUT, USART1_RTS/USART1_DE and USART5_TX, and additional function COMP2_INM."+ },+ {+ "number": "27",+ "name": "PB4",+ "type": "bidirectional",+ "description": "Five-volt tolerant (FTf, Fast Mode Plus capable) I/O; alternate functions include SPI1_MISO, TIM3_CH1, TIM22_CH1, USART1_CTS, USART5_RX and I2C3_SDA, and additional function COMP2_INP."+ },+ {+ "number": "28",+ "name": "PB5",+ "type": "bidirectional",+ "description": "Five-volt tolerant (FT) I/O; alternate functions include SPI1_MOSI, LPTIM1_IN1, I2C1_SMBA, TIM3_CH2/TIM22_CH2, USART1_CK, USART5_CK and USART5_RTS/USART5_DE, and additional function COMP2_INP."+ },+ {+ "number": "29",+ "name": "PB6",+ "type": "bidirectional",+ "description": "Five-volt tolerant (FTf, Fast Mode Plus capable) I/O; alternate functions include USART1_TX, I2C1_SCL and LPTIM1_ETR, and additional function COMP2_INP."+ },+ {+ "number": "30",+ "name": "PB7",+ "type": "bidirectional",+ "description": "Five-volt tolerant (FTf, Fast Mode Plus capable) I/O; alternate functions include USART1_RX, I2C1_SDA, LPTIM1_IN2 and USART4_CTS, and additional functions COMP2_INP and VREF_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 reference pin; all voltages in the datasheet 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 numbers and names were taken from the LQFP32 column of Table 15 (pin definition, pages 40-48). T; Table 15 gives no LQFP32 pin for VDDIO2, VSSA, VREF+, VREF- or PB2/PB8-PB15, PC0-PC9 and PD0-PD15, s; The datasheet note says PA11 and PA12 are supplied by VDDIO2, but LQFP32 has no VDDIO2 pin and the d"+ ],+ "pages_sent": 74,+ "cost_usd": 0.2995,+ "at": "2026-10-08T20:32:55"+ },+ "datasheet": {+ "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588886723903938560",+ "pages": 148,+ "sha256": "e1c4c9ce19ae345c",+ "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": "stm32l071kzt6.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": "stm32l071kzt6-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": "a28656fa3cafb3436cc999644c8eec713d09409c6482941931685a1f5c175705",+ "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]"+ }+}