component
STM32G0B1RET6
Public Made by Adomby adom
STMicroelectronics Microcontrollers (MCU/MPU/SOC), LQFP-64(10x10). Pinout checked against ST's open pin data, 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
markdownSTM32G0B1RET6
STMicroelectronics · Microcontrollers (MCU/MPU/SOC) · LQFP-64(10x10)
STM32G0B1RET6 from STMicroelectronics, in a LQFP-64(10x10). 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 | PC11 | bidirectional | 5V-tolerant (FT) GPIO, alternate functions USART3_RX, USART4_RX, TIM1_CH4, SPI3_MISO; analog input by default at reset. |
| 2 | PC12 | bidirectional | 5V-tolerant (FT) GPIO, alternate functions LPTIM1_IN1, UCPD1_FRSTX, TIM14_CH1, USART5_TX, SPI3_MOSI. |
| 3 | PC13 | bidirectional | 5V-tolerant (FT) GPIO supplied through the RTC power switch (limited to 3 mA, max 2 MHz/30 pF in output mode); alternate function TIM1_BKIN, additional functions TAMP_IN1, RTC_TS, RTC_OUT1, WKUP1 wakeup source. |
| 4 | PC14-OSC32_IN | bidirectional | 5V-tolerant (FT) GPIO supplied through the RTC power switch (limited to 3 mA); alternate function TIM1_BKIN2, additional function 32.768 kHz oscillator input (OSC32_IN). |
| 5 | PC15-OSC32_OUT | bidirectional | 5V-tolerant (FT) GPIO supplied through the RTC power switch (limited to 3 mA); alternate functions OSC32_EN, OSC_EN, TIM15_BKIN, additional function 32.768 kHz oscillator output (OSC32_OUT). |
| 6 | VBAT | power_in | Battery backup power supply, 1.55 V to 3.6 V, powering RTC, TAMP, the 32.768 kHz LSE oscillator and backup registers when VDD is not present. |
| 7 | VREF+ | power_in | Analog reference voltage input for ADC/DAC/comparators, or output of the internal VREFBUF (VREFBUF_OUT) when enabled; must equal VDDA when VDDA<2V, or be between 2V and VDDA when VDDA≥2V. |
| 8 | VDD/VDDA | power_in | External main power supply for the internal regulator, digital I/Os and analog blocks (ADC, DAC, comparators, VREFBUF); operating range 1.7 V to 3.6 V. |
| 9 | VSS/VSSA | power_in | Ground reference for digital and analog circuitry (VSS/VSSA). |
| 10 | PF0-OSC_IN | bidirectional | 5V-tolerant (FT) GPIO, alternate functions CRS1_SYNC, EVENTOUT, TIM14_CH1, additional function 4-48 MHz HSE crystal/external clock input (OSC_IN). |
| 11 | PF1-OSC_OUT | bidirectional | 5V-tolerant (FT) GPIO, alternate functions OSC_EN, EVENTOUT, TIM15_CH1N, additional function HSE crystal output (OSC_OUT). |
| 12 | PF2-NRST | bidirectional | Bidirectional reset I/O with embedded weak pull-up, shared with GPIO alternate functions MCO, LPUART2_TX, LPUART2_RTS_DE; driving it low resets the device. |
| 13 | PC0 | bidirectional | 5V-tolerant (FT) GPIO, alternate functions LPTIM1_IN1, LPUART1_RX, LPTIM2_IN1, LPUART2_TX, USART6_TX, I2C3_SCL, COMP3_OUT; additional function COMP3_INM7 comparator input. |
| 14 | PC1 | bidirectional | 5V-tolerant (FT) GPIO, alternate functions LPTIM1_OUT, LPUART1_TX, TIM15_CH1, LPUART2_RX, USART6_RX, I2C3_SDA; additional function COMP3_INP1 comparator input. |
| 15 | PC2 | bidirectional | 5V-tolerant (FT) GPIO, alternate functions LPTIM1_IN2, SPI2_MISO/I2S2_MCK, TIM15_CH2, FDCAN2_RX, COMP3_OUT. |
| 16 | PC3 | bidirectional | 5V-tolerant (FT) GPIO, alternate functions LPTIM1_ETR, SPI2_MOSI/I2S2_SD, LPTIM2_ETR, FDCAN2_TX. |
| 17 | PA0 | bidirectional | 5V-tolerant, analog-switch capable (FT_a) GPIO, alternate functions SPI2_SCK/I2S2_CK, USART2_CTS, TIM2_CH1_ETR, USART4_TX, LPTIM1_OUT, UCPD2_FRSTX, COMP1_OUT; additional functions COMP1_INM8, ADC_IN0, TAMP_IN2, WKUP1. |
| 18 | PA1 | bidirectional | 5V-tolerant, analog-switch capable (FT_a) GPIO, alternate functions SPI1_SCK/I2S1_CK, USART2_RTS_DE_CK, TIM2_CH2, USART4_RX, TIM15_CH1N, I2C1_SMBA, EVENTOUT; additional functions COMP1_INP2, ADC_IN1. |
| 19 | PA2 | bidirectional | 5V-tolerant, analog-switch capable (FT_a) GPIO, alternate functions SPI1_MOSI/I2S1_SD, USART2_TX, TIM2_CH3, UCPD1_FRSTX, TIM15_CH1, LPUART1_TX, COMP2_OUT; additional functions COMP2_INM8, ADC_IN2, WKUP4, LSCO. |
| 20 | PA3 | bidirectional | 5V-tolerant, analog-switch capable (FT_a) GPIO, alternate functions SPI2_MISO/I2S2_MCK, USART2_RX, TIM2_CH4, UCPD2_FRSTX, TIM15_CH2, LPUART1_RX, EVENTOUT; additional functions COMP2_INP2, ADC_IN3. |
| 21 | PA4 | bidirectional | 3.6V-tolerant, analog-switch capable (TT_a) GPIO, alternate functions SPI1_NSS/I2S1_WS, SPI2_MOSI/I2S2_SD, USB_NOE, USART6_TX, TIM14_CH1, LPTIM2_OUT, UCPD2_FRSTX, EVENTOUT, SPI3_NSS; additional functions ADC_IN4, DAC1_OUT1, RTC_OUT2. |
| 22 | PA5 | bidirectional | 3.6V-tolerant, analog-switch capable (TT_a) GPIO, alternate functions SPI1_SCK/I2S1_CK, CEC, TIM2_CH1_ETR, USART6_RX, USART3_TX, LPTIM2_ETR, UCPD1_FRSTX, EVENTOUT; additional functions ADC_IN5, DAC1_OUT2. |
| 23 | PA6 | bidirectional | 5V-tolerant, analog-switch capable (FT_a) GPIO, alternate functions SPI1_MISO/I2S1_MCK, TIM3_CH1, TIM1_BKIN, USART6_CTS, USART3_CTS, TIM16_CH1, LPUART1_CTS, COMP1_OUT, I2C2_SDA, I2C3_SDA; additional function ADC_IN6. |
| 24 | PA7 | bidirectional | 5V-tolerant, analog-switch capable (FT_a) GPIO, alternate functions SPI1_MOSI/I2S1_SD, TIM3_CH2, TIM1_CH1N, USART6_RTS_DE_CK, TIM14_CH1, TIM17_CH1, UCPD1_FRSTX, COMP2_OUT, I2C2_SCL, I2C3_SCL; additional function ADC_IN7. |
| 25 | PC4 | bidirectional | 5V-tolerant, analog-switch capable (FT_a) GPIO, alternate functions USART3_TX, USART1_TX, TIM2_CH1_ETR, FDCAN1_RX; additional functions COMP1_INM7, ADC_IN17. |
| 26 | PC5 | bidirectional | 5V-tolerant, analog-switch capable (FT_a) GPIO, alternate functions USART3_RX, USART1_RX, TIM2_CH2, FDCAN1_TX; additional functions COMP1_INP0, ADC_IN18, WKUP5. |
| 27 | PB0 | bidirectional | 5V-tolerant, analog-switch capable (FT_a) GPIO, alternate functions SPI1_NSS/I2S1_WS, TIM3_CH3, TIM1_CH2N, FDCAN2_RX, USART3_RX, LPTIM1_OUT, UCPD1_FRSTX, COMP1_OUT, USART5_TX, LPUART2_CTS; additional functions COMP3_INP0, ADC_IN8. |
| 28 | PB1 | bidirectional | 5V-tolerant, analog-switch capable (FT_a) GPIO, alternate functions TIM14_CH1, TIM3_CH4, TIM1_CH3N, FDCAN2_TX, USART3_RTS_DE_CK, LPTIM2_IN1, LPUART1_RTS_DE, COMP3_OUT, USART5_RX, LPUART2_RTS_DE; additional functions COMP1_INM6, ADC_IN9. |
| 29 | PB2 | bidirectional | 5V-tolerant, analog-switch capable (FT_a) GPIO, alternate functions SPI2_MISO/I2S2_MCK, MCO2, USART3_TX, LPTIM1_OUT, EVENTOUT; additional functions COMP1_INP1, COMP3_INM6, ADC_IN10. |
| 30 | PB10 | bidirectional | 5V-tolerant, Fm+ and analog-switch capable (FT_fa) GPIO, alternate functions CEC, LPUART1_RX, TIM2_CH3, USART3_TX, SPI2_SCK/I2S2_CK, I2C2_SCL, COMP1_OUT; additional function ADC_IN11. |
| 31 | PB11 | bidirectional | 5V-tolerant, Fm+ and analog-switch capable (FT_fa) GPIO, alternate functions SPI2_MOSI/I2S2_SD, LPUART1_TX, TIM2_CH4, USART3_RX, I2C2_SDA, COMP2_OUT; additional function ADC_IN15. |
| 32 | PB12 | bidirectional | 5V-tolerant, Fm+ and analog-switch capable (FT_fa) GPIO, alternate functions SPI2_NSS/I2S2_WS, LPUART1_RTS_DE, TIM1_BKIN, FDCAN2_RX, TIM15_BKIN, UCPD2_FRSTX, EVENTOUT, I2C2_SMBA; additional function ADC_IN16. |
| 33 | PB13 | bidirectional | 5V-tolerant, Fm+ capable (FT_f) GPIO, alternate functions SPI2_SCK/I2S2_CK, LPUART1_CTS, TIM1_CH1N, FDCAN2_TX, USART3_CTS, TIM15_CH1N, I2C2_SCL, EVENTOUT. |
| 34 | PB14 | bidirectional | 5V-tolerant, Fm+ capable (FT_f) GPIO, alternate functions SPI2_MISO/I2S2_MCK, UCPD1_FRSTX, TIM1_CH2N, USART3_RTS_DE_CK, TIM15_CH1, I2C2_SDA, EVENTOUT, USART6_RTS_DE_CK. |
| 35 | PB15 | bidirectional | 5V-tolerant, Fm+ capable (FT_f) GPIO, alternate functions SPI2_MOSI/I2S2_SD, TIM1_CH3N, TIM15_CH1N, TIM15_CH2, EVENTOUT, USART6_CTS; additional functions UCPD1_CC2 Type-C CC line and RTC_REFIN. |
| 36 | PA8 | bidirectional | 5V-tolerant, Fm+ capable (FT_f) GPIO, alternate functions MCO, SPI2_NSS/I2S2_WS, TIM1_CH1, CRS1_SYNC, LPTIM2_OUT, EVENTOUT, I2C2_SMBA; additional function UCPD1_CC1 Type-C CC line. |
| 37 | PA9 | bidirectional | 5V-tolerant, Fm+ and USB Type-C dead-battery capable (FT_fd) GPIO, alternate functions MCO, USART1_TX, TIM1_CH2, SPI2_MISO/I2S2_MCK, TIM15_BKIN, I2C1_SCL, EVENTOUT, I2C2_SCL; additional function UCPD1_DBCC1; can be remapped in place of PA11 via SYSCFG_CFGR1. |
| 38 | PC6 | bidirectional | 5V-tolerant (FT) GPIO, alternate functions UCPD1_FRSTX, TIM3_CH1, TIM2_CH3, LPUART2_TX. |
| 39 | PC7 | bidirectional | 5V-tolerant (FT) GPIO, alternate functions UCPD2_FRSTX, TIM3_CH2, TIM2_CH4, LPUART2_RX. |
| 40 | PD8 | bidirectional | 5V-tolerant (FT) GPIO, alternate functions USART3_TX, SPI1_SCK/I2S1_CK, LPTIM1_OUT (present on GP variant only; replaced by VSS on the N variant). |
| 41 | PD9 | bidirectional | 5V-tolerant (FT) GPIO, alternate functions USART3_RX, SPI1_NSS/I2S1_WS, TIM1_BKIN2 (present on GP variant only; replaced by VDDIO2 on the N variant). |
| 42 | PA10 | bidirectional | 5V-tolerant, Fm+ and USB Type-C dead-battery capable (FT_fd) GPIO, alternate functions SPI2_MOSI/I2S2_SD, USART1_RX, TIM1_CH3, MCO2, TIM17_BKIN, I2C1_SDA, EVENTOUT, I2C2_SDA; additional function UCPD1_DBCC2; can be remapped in place of PA12 via SYSCFG_CFGR1. |
| 43 | PA11 [PA9] | bidirectional | 5V-tolerant, Fm+ capable (FT_f) GPIO, alternate functions SPI1_MISO/I2S1_MCK, USART1_CTS, TIM1_CH4, FDCAN1_RX, TIM1_BKIN2, I2C2_SCL, COMP1_OUT; additional function USB_DM; PA9 can be remapped here by default mapping via SYSCFG_CFGR1. |
| 44 | PA12 [PA10] | bidirectional | 5V-tolerant, Fm+ capable (FT_f) GPIO, alternate functions SPI1_MOSI/I2S1_SD, USART1_RTS_DE_CK, TIM1_ETR, FDCAN1_TX, I2S_CKIN, I2C2_SDA, COMP2_OUT; additional function USB_DP; PA10 can be remapped here by default mapping via SYSCFG_CFGR1. |
| 45 | PA13 | bidirectional | 5V-tolerant (FT) GPIO defaulting at reset to SWDIO debug alternate function with internal pull-up activated; other alternate functions IR_OUT, USB_NOE, EVENTOUT, LPUART2_RX. |
| 46 | PA14-BOOT0 | bidirectional | 5V-tolerant (FT) GPIO defaulting at reset to SWCLK debug alternate function with internal pull-down activated; also USART2_TX, EVENTOUT, LPUART2_TX alternate functions; additional function BOOT0 boot-mode selection. |
| 47 | PA15 | bidirectional | 5V-tolerant (FT) GPIO, alternate functions SPI1_NSS/I2S1_WS, USART2_RX, TIM2_CH1_ETR, MCO2, USART4_RTS_DE_CK, USART3_RTS_DE_CK, USB_NOE, EVENTOUT, I2C2_SMBA, SPI3_NSS. |
| 48 | PC8 | bidirectional | 5V-tolerant (FT) GPIO, alternate functions UCPD2_FRSTX, TIM3_CH3, TIM1_CH1, LPUART2_CTS. |
| 49 | PC9 | bidirectional | 5V-tolerant (FT) GPIO, alternate functions I2S_CKIN, TIM3_CH4, TIM1_CH2, LPUART2_RTS_DE, USB_NOE. |
| 50 | PD0 | bidirectional | 5V-tolerant, USB Type-C PD capable (FT_c) GPIO, alternate functions EVENTOUT, SPI2_NSS/I2S2_WS, TIM16_CH1, FDCAN1_RX; additional function UCPD2_CC1 Type-C CC line. |
| 51 | PD1 | bidirectional | 5V-tolerant, USB Type-C dead-battery capable (FT_d) GPIO, alternate functions EVENTOUT, SPI2_SCK/I2S2_CK, TIM17_CH1, FDCAN1_TX; additional function UCPD2_DBCC1. |
| 52 | PD2 | bidirectional | 5V-tolerant, USB Type-C PD capable (FT_c) GPIO, alternate functions USART3_RTS_DE_CK, TIM3_ETR, TIM1_CH1N, USART5_RX; additional function UCPD2_CC2 Type-C CC line. |
| 53 | PD3 | bidirectional | 5V-tolerant, USB Type-C dead-battery capable (FT_d) GPIO, alternate functions USART2_CTS, SPI2_MISO/I2S2_MCK, TIM1_CH2N, USART5_TX; additional function UCPD2_DBCC2. |
| 54 | PD4 | bidirectional | 5V-tolerant (FT) GPIO, alternate functions USART2_RTS_DE_CK, SPI2_MOSI/I2S2_SD, TIM1_CH3N, USART5_RTS_DE_CK. |
| 55 | PD5 | bidirectional | 5V-tolerant (FT) GPIO, alternate functions USART2_TX, SPI1_MISO/I2S1_MCK, TIM1_BKIN, USART5_CTS. |
| 56 | PD6 | bidirectional | 5V-tolerant (FT) GPIO, alternate functions USART2_RX, SPI1_MOSI/I2S1_SD, LPTIM2_OUT. |
| 57 | PB3 | bidirectional | 5V-tolerant, analog-switch capable (FT_a) GPIO, alternate functions SPI1_SCK/I2S1_CK, TIM1_CH2, TIM2_CH2, USART5_TX, USART1_RTS_DE_CK, I2C3_SCL, EVENTOUT, I2C2_SCL, SPI3_SCK; additional function COMP2_INM6. |
| 58 | PB4 | bidirectional | 5V-tolerant, analog-switch capable (FT_a) GPIO, alternate functions SPI1_MISO/I2S1_MCK, TIM3_CH1, USART5_RX, USART1_CTS, TIM17_BKIN, I2C3_SDA, EVENTOUT, I2C2_SDA, SPI3_MISO; additional function COMP2_INP0. |
| 59 | PB5 | bidirectional | 5V-tolerant (FT) GPIO, alternate functions SPI1_MOSI/I2S1_SD, TIM3_CH2, TIM16_BKIN, FDCAN2_RX, LPTIM1_IN1, I2C1_SMBA, COMP2_OUT, USART5_RTS_DE_CK, SPI3_MOSI; additional function WKUP6 wakeup source. |
| 60 | PB6 | bidirectional | 5V-tolerant, Fm+ and analog-switch capable (FT_fa) GPIO, alternate functions USART1_TX, TIM1_CH3, TIM16_CH1N, FDCAN2_TX, SPI2_MISO/I2S2_MCK, LPTIM1_ETR, I2C1_SCL, EVENTOUT, USART5_CTS, TIM4_CH1, LPUART2_TX; additional function COMP2_INP1. |
| 61 | PB7 | bidirectional | 5V-tolerant, Fm+ and analog-switch capable (FT_fa) GPIO, alternate functions USART1_RX, SPI2_MOSI/I2S2_SD, TIM17_CH1N, USART4_CTS, LPTIM1_IN2, I2C1_SDA, EVENTOUT, TIM4_CH2, LPUART2_RX; additional functions COMP2_INM7, PVD_IN. |
| 62 | PB8 | bidirectional | 5V-tolerant, Fm+ capable (FT_f) GPIO, alternate functions CEC, SPI2_SCK/I2S2_CK, TIM16_CH1, FDCAN1_RX, USART3_TX, TIM15_BKIN, I2C1_SCL, EVENTOUT, USART6_TX, TIM4_CH3. |
| 63 | PB9 | bidirectional | 5V-tolerant, Fm+ capable (FT_f) GPIO, alternate functions IR_OUT, UCPD2_FRSTX, TIM17_CH1, FDCAN1_TX, USART3_RX, SPI2_NSS/I2S2_WS, I2C1_SDA, EVENTOUT, USART6_RX, TIM4_CH4. |
| 64 | PC10 | bidirectional | 5V-tolerant (FT) GPIO, alternate functions USART3_TX, USART4_TX, TIM1_CH3, SPI3_SCK. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | LQFP-64(10x10) |
| Category | Embedded Processors & Controllers |
| Pins | 64 |
CAD (KiCad official)
- Symbol:
STM32G0B1RET6 - Footprint:
Package_QFP:LQFP-64_10x10mm_P0.5mm - 3D model: LQFP-64(10x10) (KiCad packages3D, STEP)
- 3D model files:
stm32g0b1ret6-etched.step/stm32g0b1ret6-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);stm32g0b1ret6.step/stm32g0b1ret6.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: STMicroelectronics datasheet (159 pp, sha256
9fc2cfec9a1c8d5c, retrieved 2026-09-24, 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).