STM32F101X6 datasheet(19/64 Pages) STMICROELECTRONICS

19 / 64 page

STM32F101xx

Pin descriptions

19/64

PD7

I/O

PD7

PB3/JTDO/TRACESWO

I/O

JTDO

PB3/TRACESWO

PB4/JNTRST

I/O

JNTRST

PB4

PB5/I2C1_SMBAl

I/O

PB5

I2C1_SMBAl

PB6/I2C1_SCL/TIM4_CH1

I/O

PB6

I2C1_SCL(7)/TIM4_CH1(5) (7)

PB7/I2C1_SDA/TIM4_CH2

I/O

PB7

I2C1_SDA(7)/TIM4_CH2(5) (7)

BOOT0

PB8/TIM4_CH3

I/O

PB8

TIM4_CH3(5) (7)

PB9/TIM4_CH4

I/O

PB9

TIM4_CH4(5) (7)

PE0/TIM4_ETR

I/O

PE0

TIM4_ETR(5)

PE1

I/O

PE1

VSS_3

SVSS_3

100

VDD_3

SVDD_3

I = input, O = output, S = supply, HiZ= high impedance.

FT= 5 V tolerant.

Function availability depends on the chosen device. Refer to Table 2 on page 7.

PC13, PC14 and PC15 are supplied through the power switch, and so their use in ouptut mode is limited: they can be used

only in output 2 MHz mode with a maximum load of 30 pF and only one pin can be put in output mode at a time.

Available only on devices with a Flash memory density equal or higher than 64 Kbytes.

For the LQFP48 and LQFP64 packages, the pins number 5 and 6 are configured as OSC_IN/OSC_OUT after reset,

however the functionality of PD0 and PD1 can be remapped by software on these pins.

This alternate function can be remapped by software to some other port pins (if available on the used package). For more

details, refer to the Alternate function I/O and debug configuration section in the STM32F10xxx reference manual,

UM0306, available from the STMicroelectronics website: www.st.com.

Table 3.

Pin definitions (continued)

Pins

Pin name

Main

function(3)

(after reset)

Default alternate functions(3)

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