STM32L011F4P6

@@ -0,0 +1,72 @@+# STM32L011F4P6++**STMicroelectronics** · Microcontrollers (MCU/MPU/SOC) · TSSOP-20++STM32L011F4P6 from STMicroelectronics, in a TSSOP-20. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | PB9/BOOT0 | input | Boot-mode select input (B-type). After reset acts as BOOT0; system boots from user Flash, system memory, or SRAM depending on BOOT0 level sampled at reset. Also available as PB9 GPIO after reset if BOOT0 remapped via option bytes. |+| 2 | PC14-OSC32_IN | bidirectional | 5V-tolerant I/O (FT). Additional function: LSE 32.768 kHz crystal oscillator input (OSC32_IN). Doubles as PC14 GPIO when LSE not used. |+| 3 | PC15-OSC32_OUT | bidirectional | Standard 3.3 V I/O (TC). Additional function: LSE 32.768 kHz crystal oscillator output (OSC32_OUT). Doubles as PC15 GPIO when LSE not used. |+| 4 | NRST | bidirectional | Device reset input, active low, with internal weak pull-up (RST type). Also driven low internally to signal an internal reset source. Pull externally low >20 us to force reset. |+| 5 | VDDA | power_in | Analog supply for ADC, comparators, reset block, PLL, and internal voltage reference. Must equal or exceed VDD; range 1.65 V-3.6 V. Decouple to VSS with 100 nF + 1 uF close to the pin. |+| 6 | PA0-CK_IN | bidirectional | 3.3 V ADC-tolerant I/O (TTa). Alt functions: USART2_RX/CTS, LPTIM1_IN1, TIM2_CH1/ETR, LPUART1_RX, COMP1_OUT. Additional: COMP1_INM, ADC_IN0, RTC_TAMP2/WKUP1, CK_IN (external clock in). |+| 7 | PA1 | bidirectional | 5V-tolerant I/O (FT). Alt functions: EVENTOUT, LPTIM1_IN2, TIM2_CH2, I2C1_SMBA, USART2_RTS, TIM21_ETR, LPUART1_TX. Additional: COMP1_INP, ADC_IN1. |+| 8 | PA2 | bidirectional | 3.3 V ADC-tolerant I/O (TTa). Alt functions: TIM21_CH1, TIM2_CH3, USART2_TX, LPUART1_TX, COMP2_OUT. Additional: COMP2_INM, ADC_IN2, RTC_TAMP3/RTC_TS/RTC_OUT/WKUP3. |+| 9 | PA3 | bidirectional | 5V-tolerant I/O (FT). Alt functions: TIM21_CH2, TIM2_CH4, USART2_RX, LPUART1_RX. Additional: COMP2_INP, ADC_IN3. |+| 10 | PA4 | bidirectional | 3.3 V ADC-tolerant I/O (TTa). Alt functions: SPI1_NSS, LPTIM1_IN1/ETR, I2C1_SCL, USART2_CK, TIM2_ETR, LPUART1_TX, COMP2_OUT. Additional: COMP1_INM, COMP2_INM, ADC_IN4. |+| 11 | PA5 | bidirectional | 3.3 V ADC-tolerant I/O (TTa). Alt functions: SPI1_SCK, LPTIM1_IN2, TIM2_ETR, TIM2_CH1. Additional: COMP1_INM, COMP2_INM, ADC_IN5. |+| 12 | PA6 | bidirectional | 5V-tolerant I/O (FT). Alt functions: SPI1_MISO, LPTIM1_ETR, LPUART1_CTS, EVENTOUT, COMP1_OUT. Additional: ADC_IN6. |+| 13 | PA7 | bidirectional | 5V-tolerant I/O (FT). Alt functions: SPI1_MOSI, LPTIM1_OUT, USART2_CTS, TIM21_ETR, EVENTOUT, COMP2_OUT. Additional: COMP2_INP, ADC_IN7. |+| 14 | PB1 | bidirectional | 5V-tolerant I/O (FT). Alt functions: USART2_CK, SPI1_MOSI, LPTIM1_IN1, LPUART1_RTS, TIM2_CH4. Additional: ADC_IN9, VREF_OUT. |+| 15 | VSS | power_in | Digital and analog ground reference (0 V). Tie to system ground plane; footnote 5 confirms this pin serves both digital and analog return. |+| 16 | VDD | power_in | Main digital supply, 1.65 V-3.6 V. Powers I/Os and internal regulator. Decouple to VSS with 100 nF close to the pin. |+| 17 | PA9 | bidirectional | 5V-tolerant Fm+ I/O (FTf). Alt functions: MCO clock output, I2C1_SCL, LPTIM1_OUT, USART2_TX, TIM21_CH2, COMP1_OUT. |+| 18 | PA10 | bidirectional | 5V-tolerant Fm+ I/O (FTf). Alt functions: TIM21_CH1, I2C1_SDA, RTC_REFIN, USART2_RX, TIM2_CH3, COMP1_OUT. |+| 19 | PA13 | bidirectional | 5V-tolerant Fm+ I/O (FTf). Default after reset: SWDIO (serial-wire debug data). Alt functions: SWDIO, LPTIM1_ETR, I2C1_SDA, SPI1_SCK, LPUART1_RX, COMP1_OUT. |+| 20 | PA14 | bidirectional | 5V-tolerant I/O (FT). Default after reset: SWCLK (serial-wire debug clock). Alt functions: SWCLK, LPTIM1_OUT, I2C1_SMBA, USART2_TX, SPI1_MISO, LPUART1_TX, COMP2_OUT. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | STMicroelectronics |+| Package | TSSOP-20 |+| Category | MCU |+| Pins | 20 |++## Ordering variants++- `STM32L011F4P6F4P6`+- `STM32L011F4P6F3P6`+- `STM32L011F4P6G4U6`+- `STM32L011F4P6G3U6`+- `STM32L011F4P6D4P6`+- `STM32L011F4P6D3P6`+- `STM32L011F4P6E4U6`+- `STM32L011F4P6E3U6`+- `STM32L011F4P6K4U6`+- `STM32L011F4P6K3U6`+- `STM32L011F4P6K4T6`+- `STM32L011F4P6K3T6`+- `STM32L011F4P6E4Y6`+- `STM32L011F4P6E3Y6`++## CAD (KiCad official)++- Symbol: `STM32L011F4P6`+- Footprint: `Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm`+- 3D model: TSSOP-20 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [STMicroelectronics datasheet](https://www.st.com/resource/en/datasheet/stm32l011f4p6.pdf) (115 pp, sha256 `d598d4dcb828e7dc`, retrieved 2026-08-17, tier: manufacturer)+- **Extractor:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.+- **CAD:** KiCad official libraries (CC-BY-SA 4.0).++[Datasheet PDF](docs/stm32l011f4p6-datasheet.pdf)

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