STM32F042F6P6

@@ -0,0 +1,74 @@+# STM32F042F6P6++**STMicroelectronics** · Microcontrollers (MCU/MPU/SOC) · TSSOP-20++STM32F042F6P6 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 | PB8/BOOT0 | bidirectional | General-purpose I/O (FTf: 5V-tolerant, Fast-Mode+ I2C capable). Also serves as BOOT0 pin to select boot memory (main Flash / system memory / embedded SRAM). Alternate functions: I2C1_SCL, CEC, TIM16_CH1, TSC_SYNC, CAN_RX. |+| 2 | PF0-OSC_IN | bidirectional | 5V-tolerant, FM+ capable I/O. Additional function: HSE crystal oscillator input (OSC_IN). Alternate functions: CRS_SYNC, I2C1_SDA. |+| 3 | PF1-OSC_OUT | bidirectional | 5V-tolerant, FM+ capable I/O. Additional function: HSE crystal oscillator output (OSC_OUT). Alternate function: I2C1_SCL. |+| 4 | NRST | bidirectional | Device reset input / internal reset output (active low). Bidirectional pin with embedded weak pull-up resistor (RST I/O structure). |+| 5 | VDDA | power_in | Analog power supply, 2.0 - 3.6 V. Powers the ADC, reset block, PLL and internal regulator analog sections. |+| 6 | PA0 | bidirectional | TTa I/O (3.3 V-tolerant, ADC-connected). Additional functions: RTC_TAMP2, WKUP1, ADC_IN0. Alternate functions: USART2_CTS, TIM2_CH1_ETR, TSC_G1_IO1. |+| 7 | PA1 | bidirectional | TTa I/O (3.3 V-tolerant, ADC-connected). Additional function: ADC_IN1. Alternate functions: EVENTOUT, USART2_RTS, TIM2_CH2, TSC_G1_IO2. |+| 8 | PA2 | bidirectional | TTa I/O (3.3 V-tolerant, ADC-connected). Additional functions: ADC_IN2, WKUP4. Alternate functions: USART2_TX, TIM2_CH3, TSC_G1_IO3. |+| 9 | PA3 | bidirectional | TTa I/O (3.3 V-tolerant, ADC-connected). Additional function: ADC_IN3. Alternate functions: USART2_RX, TIM2_CH4, TSC_G1_IO4. |+| 10 | PA4 | bidirectional | TTa I/O (3.3 V-tolerant, ADC-connected). Additional function: ADC_IN4. Alternate functions: SPI1_NSS, I2S1_WS, TIM14_CH1, TSC_G2_IO1, USART2_CK, USB_NOE. |+| 11 | PA5 | bidirectional | TTa I/O (3.3 V-tolerant, ADC-connected). Additional function: ADC_IN5. Alternate functions: SPI1_SCK, I2S1_CK, CEC, TIM2_CH1_ETR, TSC_G2_IO2. |+| 12 | PA6 | bidirectional | TTa I/O (3.3 V-tolerant, ADC-connected). Additional function: ADC_IN6. Alternate functions: SPI1_MISO, I2S1_MCK, TIM3_CH1, TIM1_BKIN, TIM16_CH1, TSC_G2_IO3, EVENTOUT. |+| 13 | PA7 | bidirectional | TTa I/O (3.3 V-tolerant, ADC-connected). Additional function: ADC_IN7. Alternate functions: SPI1_MOSI, I2S1_SD, TIM3_CH2, TIM14_CH1, TIM1_CH1N, TIM17_CH1, TSC_G2_IO4, EVENTOUT. |+| 14 | PB1 | bidirectional | TTa I/O (3.3 V-tolerant, ADC-connected). Additional function: ADC_IN9. Alternate functions: TIM3_CH4, TIM14_CH1, TIM1_CH3N, TSC_G3_IO3. |+| 15 | VSS | power_in | Digital ground. On TSSOP20 (and all non-48-pin packages) VSSA (analog ground) is bonded internally to this VSS pin; both digital and analog grounds must be connected here. |+| 16 | VDD | power_in | Digital power supply, 2.0 - 3.6 V. On TSSOP20 this pin is shared with VDDIO2 (supply for PA8-PA15 I/Os); both are bonded to the same package pin. |+| 17 | PA9 | bidirectional | FTf I/O (5V-tolerant, FM+ capable), powered by VDDIO2. Alternate functions: USART1_TX, TIM1_CH2, TSC_G4_IO1, I2C1_SCL, MCO. PA11 can be remapped to this pin via SYSCFG_CFGR1. |+| 18 | PA10 | bidirectional | FTf I/O (5V-tolerant, FM+ capable), powered by VDDIO2. Alternate functions: USART1_RX, TIM1_CH3, TIM17_BKIN, TSC_G4_IO2, I2C1_SDA. PA12 can be remapped to this pin via SYSCFG_CFGR1. |+| 19 | PA13 | bidirectional | FT I/O (5V-tolerant), powered by VDDIO2. After reset configured as SWDIO with internal pull-up. Alternate functions: SWDIO, IR_OUT, USB_NOE. |+| 20 | PA14 | bidirectional | FT I/O (5V-tolerant), powered by VDDIO2. After reset configured as SWCLK with internal pull-down. Alternate functions: SWCLK, USART2_TX. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | STMicroelectronics |+| Package | TSSOP-20 |+| Category | MCU |+| Pins | 20 |++## Ordering variants++- `STM32F042F6P6F6P6`+- `STM32F042F6P6F4P6`+- `STM32F042F6P6F6P7`+- `STM32F042F6P6F4P7`+- `STM32F042F6P6G6U6`+- `STM32F042F6P6G4U6`+- `STM32F042F6P6T6Y6`+- `STM32F042F6P6T4Y6`+- `STM32F042F6P6K6T6`+- `STM32F042F6P6K4T6`+- `STM32F042F6P6K6U6`+- `STM32F042F6P6K4U6`+- `STM32F042F6P6C6T6`+- `STM32F042F6P6C4T6`+- `STM32F042F6P6C6U6`+- `STM32F042F6P6C4U6`++## CAD (KiCad official)++- Symbol: `STM32F042F6P6`+- 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/stm32f042f6p6.pdf) (118 pp, sha256 `4c7b3ccc0428dbff`, 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/stm32f042f6p6-datasheet.pdf)

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