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STM32F042K6T6
Public Made by Adomby adom
STMicroelectronics Microcontrollers (MCU/MPU/SOC), LQFP-32(7x7). Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownSTM32F042K6T6
STMicroelectronics · Microcontrollers (MCU/MPU/SOC) · LQFP-32(7x7)
STM32F042K6T6 from STMicroelectronics, in a LQFP-32(7x7). 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 | VDD | power_in | Digital power supply for I/Os and internal regulator, VDD = 2.0 to 3.6 V; must be decoupled with ceramic capacitors close to the pin. |
| 2 | PF0-OSC_IN | bidirectional | General-purpose I/O PF0, 5 V-tolerant Fm+ capable (FTf); alternate functions CRS_SYNC and I2C1_SDA; additional function OSC_IN, the 4-32 MHz external crystal/resonator oscillator input. |
| 3 | PF1-OSC_OUT | bidirectional | General-purpose I/O PF1, 5 V-tolerant Fm+ capable (FTf); alternate function I2C1_SCL; additional function OSC_OUT, the 4-32 MHz external crystal/resonator oscillator output. |
| 4 | NRST | bidirectional | Bidirectional reset pin with embedded weak pull-up resistor; device reset input / internal reset output, active low. |
| 5 | VDDA | power_in | External analog power supply for ADC, reset blocks, RCs and PLL; from VDD to 3.6 V, minimum 2.4 V when the ADC is used; must always be ≥ VDD and established first. |
| 6 | PA0 | bidirectional | 3.3 V-tolerant ADC-connected I/O (TTa); alternate functions USART2_CTS, TIM2_CH1_ETR, TSC_G1_IO1; additional functions RTC_TAMP2, WKUP1, ADC_IN0. |
| 7 | PA1 | bidirectional | 3.3 V-tolerant ADC-connected I/O (TTa); alternate functions USART2_RTS, TIM2_CH2, TSC_G1_IO2, EVENTOUT; additional function ADC_IN1. |
| 8 | PA2 | bidirectional | 3.3 V-tolerant ADC-connected I/O (TTa); alternate functions USART2_TX, TIM2_CH3, TSC_G1_IO3; additional functions ADC_IN2, WKUP4. |
| 9 | PA3 | bidirectional | 3.3 V-tolerant ADC-connected I/O (TTa); alternate functions USART2_RX, TIM2_CH4, TSC_G1_IO4; additional function ADC_IN3. |
| 10 | PA4 | bidirectional | 3.3 V-tolerant ADC-connected I/O (TTa); alternate functions SPI1_NSS/I2S1_WS, USART2_CK, USB_NOE, TSC_G2_IO1, TIM14_CH1; additional function ADC_IN4. |
| 11 | PA5 | bidirectional | 3.3 V-tolerant ADC-connected I/O (TTa); alternate functions SPI1_SCK/I2S1_CK, CEC, TIM2_CH1_ETR, TSC_G2_IO2; additional function ADC_IN5. |
| 12 | PA6 | bidirectional | 3.3 V-tolerant ADC-connected I/O (TTa); alternate functions SPI1_MISO/I2S1_MCK, TIM3_CH1, TIM1_BKIN, TIM16_CH1, TSC_G2_IO3, EVENTOUT; additional function ADC_IN6. |
| 13 | PA7 | bidirectional | 3.3 V-tolerant ADC-connected I/O (TTa); alternate functions SPI1_MOSI/I2S1_SD, TIM3_CH2, TIM14_CH1, TIM1_CH1N, TIM17_CH1, TSC_G2_IO4, EVENTOUT; additional function ADC_IN7. |
| 14 | PB0 | bidirectional | 3.3 V-tolerant ADC-connected I/O (TTa); alternate functions TIM3_CH3, TIM1_CH2N, TSC_G3_IO2, EVENTOUT; additional function ADC_IN8. |
| 15 | PB1 | bidirectional | 3.3 V-tolerant ADC-connected I/O (TTa); alternate functions TIM3_CH4, TIM14_CH1, TIM1_CH3N, TSC_G3_IO3; additional function ADC_IN9. |
| 16 | VSS | power_in | Ground pin. |
| 17 | VDDIO2 | power_in | Independent digital power supply for the marked I/Os (PA8-PA15 group), VDDIO2 = 1.65 to 3.6 V; must not be supplied unless VDD is present. |
| 18 | PA8 | bidirectional | 5 V-tolerant I/O (FT), supplied from VDDIO2; alternate functions MCO, USART1_CK, TIM1_CH1, EVENTOUT, CRS_SYNC. |
| 19 | PA9 | bidirectional | 5 V-tolerant Fm+ capable I/O (FTf), supplied from VDDIO2; alternate functions USART1_TX, TIM1_CH2, TSC_G4_IO1, I2C1_SCL; usable for Flash bootloader USART reprogramming. |
| 20 | PA10 | bidirectional | 5 V-tolerant Fm+ capable I/O (FTf), supplied from VDDIO2; alternate functions USART1_RX, TIM1_CH3, TIM17_BKIN, TSC_G4_IO2, I2C1_SDA; usable for Flash bootloader USART reprogramming. |
| 21 | PA11 | bidirectional | 5 V-tolerant Fm+ capable I/O (FTf), supplied from VDDIO2; alternate functions CAN_RX, USART1_CTS, TIM1_CH4, TSC_G4_IO3, EVENTOUT, I2C1_SCL; additional function USB_DM; pin pair PA11/12 can be remapped in place of PA9/10 via SYSCFG_CFGR1. |
| 22 | PA12 | bidirectional | 5 V-tolerant Fm+ capable I/O (FTf), supplied from VDDIO2; alternate functions CAN_TX, USART1_RTS, TIM1_ETR, TSC_G4_IO4, EVENTOUT, I2C1_SDA; additional function USB_DP. |
| 23 | PA13 | bidirectional | 5 V-tolerant I/O (FT), supplied from VDDIO2; alternate functions IR_OUT, SWDIO; additional function USB_NOE; after reset configured as SWDIO with internal pull-up activated. |
| 24 | PA14 | bidirectional | 5 V-tolerant I/O (FT), supplied from VDDIO2; alternate functions USART2_TX, SWCLK; after reset configured as SWCLK with internal pull-down activated. |
| 25 | PA15 | bidirectional | 5 V-tolerant I/O (FT), supplied from VDDIO2; alternate functions SPI1_NSS/I2S1_WS, USART2_RX, TIM2_CH1_ETR, EVENTOUT; additional function USB_NOE. |
| 26 | PB3 | bidirectional | 5 V-tolerant I/O (FT); alternate functions SPI1_SCK/I2S1_CK, TIM2_CH2, TSC_G5_IO1, EVENTOUT. |
| 27 | PB4 | bidirectional | 5 V-tolerant I/O (FT); alternate functions SPI1_MISO/I2S1_MCK, TIM17_BKIN, TIM3_CH1, TSC_G5_IO2, EVENTOUT. |
| 28 | PB5 | bidirectional | 5 V-tolerant I/O (FT); alternate functions SPI1_MOSI/I2S1_SD, I2C1_SMBA, TIM16_BKIN, TIM3_CH2; additional function WKUP6. |
| 29 | PB6 | bidirectional | 5 V-tolerant Fm+ capable I/O (FTf); alternate functions I2C1_SCL, USART1_TX, TIM16_CH1N, TSC_G5_IO3. |
| 30 | PB7 | bidirectional | 5 V-tolerant Fm+ capable I/O (FTf); alternate functions I2C1_SDA, USART1_RX, TIM17_CH1N, TSC_G5_IO4. |
| 31 | PB8-BOOT0 | bidirectional | 5 V-tolerant Fm+ capable I/O (FTf); alternate functions I2C1_SCL, CEC, TIM16_CH1, TSC_SYNC, CAN_RX; also acts as BOOT0 boot-memory selection input sampled at reset. |
| 32 | VSS | power_in | Ground pin; on packages other than the 48-pin ones there is no separate VSSA pin, so the VSSA analog ground pad of the silicon die is internally bonded to this VSS pin. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | LQFP-32(7x7) |
| Category | Embedded Processors & Controllers |
| Pins | 32 |
CAD (KiCad official)
- Symbol:
STM32F042K6T6 - Footprint:
Package_QFP:LQFP-32_7x7mm_P0.8mm - 3D model: LQFP-32(7x7) (KiCad packages3D, STEP)
- 3D model files:
stm32f042k6t6-etched.step/stm32f042k6t6-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);stm32f042k6t6.step/stm32f042k6t6.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: STMicroelectronics datasheet (118 pp, sha256
4c7b3ccc0428dbff, retrieved 2026-09-23, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-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).