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STM32F101R8T6TR

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STMicroelectronics Microcontrollers (MCU/MPU/SOC), LQFP-64(10x10). Pinout checked against ST's open pin data, KiCad symbol/footprint/3D.

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Symbol & Footprint

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Contents

README

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STM32F101R8T6TR

STMicroelectronics · Microcontrollers (MCU/MPU/SOC) · LQFP-64(10x10)

STM32F101R8T6TR 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_out Backup power supply for RTC and backup registers, 2.0 to 3.6 V.
2 PC13-TAMPER-RTC bidirectional General-purpose I/O port C pin 13 or RTC tamper/alarm output, supplied through power switch.
3 PC14-OSC32_IN bidirectional General-purpose I/O port C pin 14 or 32 kHz oscillator input for RTC, supplied through power switch.
4 PC15-OSC32_OUT bidirectional General-purpose I/O port C pin 15 or 32 kHz oscillator output, supplied through power switch.
5 OSC_IN input High-speed external oscillator input for 4-16 MHz crystal, configurable to PD0 by software.
6 OSC_OUT output High-speed external oscillator output for 4-16 MHz crystal, configurable to PD1 by software.
7 NRST bidirectional Active-low reset input and open-drain output pin with internal pull-up and external filter capacitor.
8 PC0 bidirectional General-purpose I/O port C pin 0, alternate function ADC_IN10.
9 PC1 bidirectional General-purpose I/O port C pin 1, alternate function ADC_IN11.
10 PC2 bidirectional General-purpose I/O port C pin 2, alternate function ADC_IN12.
11 PC3 bidirectional General-purpose I/O port C pin 3, alternate function ADC_IN13.
12 VSSA power_in Analog ground reference pin for ADC.
13 VDDA power_out Analog power supply for ADC and voltage reference, 2.4 to 3.6 V.
14 PA0-WKUP bidirectional General-purpose I/O port A pin 0 with wakeup capability, alternate functions USART2_CTS, ADC_IN0, TIM2_CH1_ETR.
15 PA1 bidirectional General-purpose I/O port A pin 1, alternate functions USART2_RTS, ADC_IN1, TIM2_CH2.
16 PA2 bidirectional General-purpose I/O port A pin 2, alternate functions USART2_TX, ADC_IN2, TIM2_CH3.
17 PA3 bidirectional General-purpose I/O port A pin 3, alternate functions USART2_RX, ADC_IN3, TIM2_CH4.
18 VSS_4 power_in Ground connection point.
19 VDD_4 power_out Power supply connection point, 2.0 to 3.6 V.
20 PA4 bidirectional General-purpose I/O port A pin 4, alternate functions SPI1_NSS, ADC_IN4, USART2_CK.
21 PA5 bidirectional General-purpose I/O port A pin 5, alternate functions SPI1_SCK, ADC_IN5.
22 PA6 bidirectional General-purpose I/O port A pin 6, alternate functions SPI1_MISO, ADC_IN6, TIM3_CH1.
23 PA7 bidirectional General-purpose I/O port A pin 7, alternate functions SPI1_MOSI, ADC_IN7, TIM3_CH2.
24 PC4 bidirectional General-purpose I/O port C pin 4, alternate function ADC_IN14.
25 PC5 bidirectional General-purpose I/O port C pin 5, alternate function ADC_IN15.
26 PB0 bidirectional General-purpose I/O port B pin 0, alternate functions ADC_IN8, TIM3_CH3.
27 PB1 bidirectional General-purpose I/O port B pin 1, alternate functions ADC_IN9, TIM3_CH4.
28 PB2 bidirectional General-purpose I/O port B pin 2, also functions as BOOT1 strapping option.
29 PB10 bidirectional General-purpose I/O port B pin 10, 5 V tolerant, alternate functions I2C2_SCL, USART3_TX, TIM2_CH3.
30 PB11 bidirectional General-purpose I/O port B pin 11, 5 V tolerant, alternate functions I2C2_SDA, USART3_RX, TIM2_CH4.
31 VSS_1 power_in Ground connection point.
32 VDD_1 power_out Power supply connection point, 2.0 to 3.6 V.
33 PB12 bidirectional General-purpose I/O port B pin 12, 5 V tolerant, alternate functions SPI2_NSS, I2C2_SMBA, USART3_CK.
34 PB13 bidirectional General-purpose I/O port B pin 13, 5 V tolerant, alternate functions SPI2_SCK, USART3_CTS.
35 PB14 bidirectional General-purpose I/O port B pin 14, 5 V tolerant, alternate functions SPI2_MISO, USART3_RTS.
36 PB15 bidirectional General-purpose I/O port B pin 15, 5 V tolerant, alternate function SPI2_MOSI.
37 PC6 bidirectional General-purpose I/O port C pin 6, 5 V tolerant, remap alternate function TIM3_CH1.
38 PC7 bidirectional General-purpose I/O port C pin 7, 5 V tolerant, remap alternate function TIM3_CH2.
39 PC8 bidirectional General-purpose I/O port C pin 8, 5 V tolerant, remap alternate function TIM3_CH3.
40 PC9 bidirectional General-purpose I/O port C pin 9, 5 V tolerant, remap alternate function TIM3_CH4.
41 PA8 bidirectional General-purpose I/O port A pin 8, 5 V tolerant, alternate functions USART1_CK, MCO.
42 PA9 bidirectional General-purpose I/O port A pin 9, 5 V tolerant, alternate function USART1_TX.
43 PA10 bidirectional General-purpose I/O port A pin 10, 5 V tolerant, alternate function USART1_RX.
44 PA11 bidirectional General-purpose I/O port A pin 11, 5 V tolerant, alternate function USART1_CTS.
45 PA12 bidirectional General-purpose I/O port A pin 12, 5 V tolerant, alternate function USART1_RTS.
46 PA13 bidirectional General-purpose I/O port A pin 13 or JTAG TMS and SWD I/O, 5 V tolerant, shared debug interface.
47 VSS_2 power_in Ground connection point.
48 VDD_2 power_out Power supply connection point, 2.0 to 3.6 V.
49 PA14 bidirectional General-purpose I/O port A pin 14 or JTAG TCK and SWD clock, 5 V tolerant, remap function PA14.
50 PA15 bidirectional General-purpose I/O port A pin 15 or JTAG TDI, 5 V tolerant, remap functions TIM2_CH1_ETR, SPI1_NSS.
51 PC10 bidirectional General-purpose I/O port C pin 10, 5 V tolerant, remap alternate function USART3_TX.
52 PC11 bidirectional General-purpose I/O port C pin 11, 5 V tolerant, remap alternate function USART3_RX.
53 PC12 bidirectional General-purpose I/O port C pin 12, 5 V tolerant, remap alternate function USART3_CK.
54 PD2 bidirectional General-purpose I/O port D pin 2, 5 V tolerant, default function TIM3_ETR.
55 PB3 bidirectional General-purpose I/O port B pin 3 or JTAG TDO and SWD output, 5 V tolerant, remap functions TIM2_CH2, SPI1_SCK.
56 PB4 bidirectional General-purpose I/O port B pin 4 or JTAG TRST, 5 V tolerant, remap functions PB4, TIM3_CH1, SPI1_MISO.
57 PB5 bidirectional General-purpose I/O port B pin 5, alternate functions I2C1_SMBA, TIM3_CH2, SPI1_MOSI.
58 PB6 bidirectional General-purpose I/O port B pin 6, 5 V tolerant, alternate functions I2C1_SCL, TIM4_CH1, remap USART1_TX.
59 PB7 bidirectional General-purpose I/O port B pin 7, 5 V tolerant, alternate functions I2C1_SDA, TIM4_CH2, remap USART1_RX.
60 BOOT0 input Boot mode select pin, sampled at reset to choose between Flash or system memory boot.
61 PB8 bidirectional General-purpose I/O port B pin 8, 5 V tolerant, default function TIM4_CH3, remap I2C1_SCL.
62 PB9 bidirectional General-purpose I/O port B pin 9, 5 V tolerant, default function TIM4_CH4, remap I2C1_SDA.
63 VSS_3 power_in Ground connection point.
64 VDD_3 power_out Power supply connection point, 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: STM32F101R8T6TR
  • Footprint: Package_QFP:LQFP-64_10x10mm_P0.5mm
  • 3D model: LQFP-64(10x10) (KiCad packages3D, STEP)
  • 3D model files: stm32f101r8t6tr-etched.step / stm32f101r8t6tr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); stm32f101r8t6tr.step / stm32f101r8t6tr.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: STMicroelectronics datasheet (101 pp, sha256 860032e75b7a7da1, retrieved 2026-10-07, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-4-5-20251001 (text), consensus claude-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).

Datasheet PDF