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STM32F100RET6B
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
markdownSTM32F100RET6B
STMicroelectronics · Microcontrollers (MCU/MPU/SOC) · LQFP-64(10x10)
STM32F100RET6B 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 | VBAT | power_in | Backup-domain supply input for the RTC and backup registers. |
| 2 | PC13-TAMPER-RTC | bidirectional | PC13 I/O is supplied through the power switch, which sinks at most 3 mA, so output speed is limited to 2 MHz with 30 pF maximum load and it must not be used as a current source such as an LED driver. |
| 3 | PC14-OSC32_IN | bidirectional | PC14 I/O is supplied through the power switch, which sinks at most 3 mA, so output speed is limited to 2 MHz with 30 pF maximum load and it must not be used as a current source; its alternate function is the 32 kHz oscillator input OSC32_IN. |
| 4 | PC15-OSC32_OUT | bidirectional | PC15 I/O is supplied through the power switch, which sinks at most 3 mA, so output speed is limited to 2 MHz with 30 pF maximum load and it must not be used as a current source; its alternate function is the 32 kHz oscillator output OSC32_OUT. |
| 5 | OSC_IN | input | Input of the 4-to-24 MHz crystal oscillator; on LQFP64 this pin is OSC_IN after reset and PD0 can be remapped onto it by software. |
| 6 | OSC_OUT | output | Output of the 4-to-24 MHz crystal oscillator; on LQFP64 this pin is OSC_OUT after reset and PD1 can be remapped onto it by software. |
| 7 | NRST | bidirectional | Reset pin (I/O type in the datasheet); its electrical limits are given in the NRST pin characteristics section. |
| 8 | PC0 | bidirectional | General-purpose I/O PC0 with analog input ADC_IN10 of the 12-bit ADC. |
| 9 | PC1 | bidirectional | General-purpose I/O PC1 with analog input ADC_IN11 of the 12-bit ADC. |
| 10 | PC2 | bidirectional | General-purpose I/O PC2 with analog input ADC_IN12 of the 12-bit ADC. |
| 11 | PC3 | bidirectional | General-purpose I/O PC3 with analog input ADC_IN13 of the 12-bit ADC. |
| 12 | VSSA | power_in | Analog ground pin; all voltages in the datasheet are referenced to VSS. |
| 13 | VDDA | power_in | Analog supply pin; ADC conversion range is 0 to 3.6 V and the temperature sensor requires 2 V < VDDA < 3.6 V. |
| 14 | PA0-WKUP | bidirectional | PA0 I/O (not 5 V tolerant) with wake-up function WKUP, ADC_IN0 input, and alternate functions USART2_CTS, TIM2_CH1_ETR and TIM5_CH1. |
| 15 | PA1 | bidirectional | PA1 I/O (not 5 V tolerant) with alternate functions USART2_RTS, ADC_IN1, TIM5_CH2 and TIM2_CH2. |
| 16 | PA2 | bidirectional | PA2 I/O (not 5 V tolerant) with alternate functions USART2_TX, TIM5_CH3, ADC_IN2, TIM15_CH1 and TIM2_CH3. |
| 17 | PA3 | bidirectional | PA3 I/O (not 5 V tolerant) with alternate functions USART2_RX, TIM5_CH4, ADC_IN3, TIM2_CH4 and TIM15_CH2. |
| 18 | VSS_4 | power_in | Digital ground pin. |
| 19 | VDD_4 | power_in | Digital supply pin; the application supply and I/Os operate from 2.0 to 3.6 V. |
| 20 | PA4 | bidirectional | PA4 I/O (not 5 V tolerant) with alternate functions SPI1_NSS, USART2_CK, DAC_OUT1 and ADC_IN4. |
| 21 | PA5 | bidirectional | PA5 I/O (not 5 V tolerant) with alternate functions SPI1_SCK, DAC_OUT2 and ADC_IN5. |
| 22 | PA6 | bidirectional | PA6 I/O (not 5 V tolerant) with alternate functions SPI1_MISO, ADC_IN6 and TIM3_CH1; remap TIM1_BKIN and TIM16_CH1. |
| 23 | PA7 | bidirectional | PA7 I/O (not 5 V tolerant) with alternate functions SPI1_MOSI, ADC_IN7 and TIM3_CH2; remap TIM1_CH1N and TIM17_CH1. |
| 24 | PC4 | bidirectional | PC4 I/O (not 5 V tolerant) with alternate functions ADC_IN14 and TIM12_CH1. |
| 25 | PC5 | bidirectional | PC5 I/O (not 5 V tolerant) with alternate functions ADC_IN15 and TIM12_CH2. |
| 26 | PB0 | bidirectional | PB0 I/O (not 5 V tolerant) with alternate functions ADC_IN8 and TIM3_CH3; remap TIM1_CH2N and TIM13_CH1. |
| 27 | PB1 | bidirectional | PB1 I/O (not 5 V tolerant) with alternate functions ADC_IN9 and TIM3_CH4; remap TIM1_CH3N and TIM14_CH1. |
| 28 | PB2/BOOT1 | bidirectional | PB2 is a 5 V-tolerant (FT) I/O that also serves as the BOOT1 boot-mode pin. |
| 29 | PB10 | bidirectional | PB10 is a 5 V-tolerant (FT) I/O with alternate functions I2C2_SCL, USART3_TX, TIM2_CH3 and HDMI_CEC. |
| 30 | PB11 | bidirectional | PB11 is a 5 V-tolerant (FT) I/O with alternate functions I2C2_SDA, USART3_RX and TIM2_CH4. |
| 31 | VSS_1 | power_in | Digital ground pin. |
| 32 | VDD_1 | power_in | Digital supply pin; the application supply and I/Os operate from 2.0 to 3.6 V. |
| 33 | PB12 | bidirectional | PB12 is a 5 V-tolerant (FT) I/O with alternate functions SPI2_NSS, I2C2_SMBA, USART3_CK, TIM1_BKIN and TIM12_CH1. |
| 34 | PB13 | bidirectional | PB13 is a 5 V-tolerant (FT) I/O with alternate functions SPI2_SCK, USART3_CTS, TIM1_CH1N and TIM12_CH2. |
| 35 | PB14 | bidirectional | PB14 is a 5 V-tolerant (FT) I/O with alternate functions SPI2_MISO, USART3_RTS, TIM1_CH2N and TIM15_CH1. |
| 36 | PB15 | bidirectional | PB15 is a 5 V-tolerant (FT) I/O with alternate functions SPI2_MOSI, TIM1_CH3N, TIM15_CH1N and TIM15_CH2. |
| 37 | PC6 | bidirectional | PC6 is a 5 V-tolerant (FT) I/O with alternate function TIM3_CH1. |
| 38 | PC7 | bidirectional | PC7 is a 5 V-tolerant (FT) I/O with alternate function TIM3_CH2. |
| 39 | PC8 | bidirectional | PC8 is a 5 V-tolerant (FT) I/O with alternate functions TIM13_CH1 and TIM3_CH3. |
| 40 | PC9 | bidirectional | PC9 is a 5 V-tolerant (FT) I/O with alternate functions TIM14_CH1 and TIM3_CH4. |
| 41 | PA8 | bidirectional | PA8 is a 5 V-tolerant (FT) I/O with alternate functions USART1_CK, TIM1_CH1 and MCO. |
| 42 | PA9 | bidirectional | PA9 is a 5 V-tolerant (FT) I/O with alternate functions USART1_TX, TIM1_CH2 and TIM15_BKIN. |
| 43 | PA10 | bidirectional | PA10 is a 5 V-tolerant (FT) I/O with alternate functions USART1_RX, TIM1_CH3 and TIM17_BKIN. |
| 44 | PA11 | bidirectional | PA11 is a 5 V-tolerant (FT) I/O with alternate functions USART1_CTS and TIM1_CH4. |
| 45 | PA12 | bidirectional | PA12 is a 5 V-tolerant (FT) I/O with alternate functions USART1_RTS and TIM1_ETR. |
| 46 | PA13 | bidirectional | PA13 is a 5 V-tolerant (FT) I/O that defaults to the JTMS-SWDIO debug function. |
| 47 | VSS_2 | power_in | Digital ground pin. |
| 48 | VDD_2 | power_in | Digital supply pin; the application supply and I/Os operate from 2.0 to 3.6 V. |
| 49 | PA14 | bidirectional | PA14 is a 5 V-tolerant (FT) I/O that defaults to the JTCK-SWCLK debug function. |
| 50 | PA15 | bidirectional | PA15 is a 5 V-tolerant (FT) I/O with default function JTDI and alternate functions SPI3_NSS, TIM2_CH1_ETR and SPI1_NSS. |
| 51 | PC10 | bidirectional | PC10 is a 5 V-tolerant (FT) I/O with alternate functions UART4_TX and USART3_TX. |
| 52 | PC11 | bidirectional | PC11 is a 5 V-tolerant (FT) I/O with alternate functions UART4_RX and USART3_RX. |
| 53 | PC12 | bidirectional | PC12 is a 5 V-tolerant (FT) I/O with alternate functions UART5_TX and USART3_CK. |
| 54 | PD2 | bidirectional | PD2 is a 5 V-tolerant (FT) I/O with alternate functions TIM3_ETR and UART5_RX. |
| 55 | PB3 | bidirectional | PB3 is a 5 V-tolerant (FT) I/O with default function JTDO and alternate functions SPI3_SCK, TRACESWO, TIM2_CH2 and SPI1_SCK. |
| 56 | PB4 | bidirectional | PB4 is a 5 V-tolerant (FT) I/O with default function NJTRST and alternate functions SPI3_MISO, TIM3_CH1 and SPI1_MISO. |
| 57 | PB5 | bidirectional | PB5 is an I/O (not 5 V tolerant) with alternate functions I2C1_SMBA, SPI3_MOSI, TIM16_BKIN, TIM3_CH2 and SPI1_MOSI. |
| 58 | PB6 | bidirectional | PB6 is a 5 V-tolerant (FT) I/O with alternate functions I2C1_SCL, TIM4_CH1, TIM16_CH1N and USART1_TX. |
| 59 | PB7 | bidirectional | PB7 is a 5 V-tolerant (FT) I/O with alternate functions I2C1_SDA, TIM4_CH2, TIM17_CH1N and USART1_RX. |
| 60 | BOOT0 | input | Boot mode selection input (BOOT0 pin) that selects the device boot source together with BOOT1 on PB2. |
| 61 | PB8 | bidirectional | PB8 is a 5 V-tolerant (FT) I/O with alternate functions TIM4_CH3, TIM16_CH1, HDMI_CEC and I2C1_SCL. |
| 62 | PB9 | bidirectional | PB9 is a 5 V-tolerant (FT) I/O with alternate functions TIM4_CH4, TIM17_CH1 and I2C1_SDA. |
| 63 | VSS_3 | power_in | Digital ground pin. |
| 64 | VDD_3 | power_in | Digital supply pin; the application supply and I/Os operate from 2.0 to 3.6 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | LQFP-64(10x10) |
| Category | Embedded Processors & Controllers |
| Pins | 64 |
CAD (KiCad official)
- Symbol:
STM32F100RET6B - Footprint:
Package_QFP:LQFP-64_10x10mm_P0.5mm - 3D model: LQFP-64(10x10) (KiCad packages3D, STEP)
- 3D model files:
stm32f100ret6b-etched.step/stm32f100ret6b-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);stm32f100ret6b.step/stm32f100ret6b.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: STMicroelectronics datasheet (107 pp, sha256
37ac4e5d049f3b5d, retrieved 2026-10-07, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-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).