CD00161566 Datasheet, PDF(28/105 Page) STMicroelectronics – nullMedium-density performance line ARM-based 32-bit MCU

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CD00161566 Datasheet, PDF (28/105 Pages) STMicroelectronics – nullMedium-density performance line ARM-based 32-bit MCU

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Pinouts and pin description

STM32F103x8, STM32F103xB

Pins

Table 5. Medium-density STM32F103xx pin definitions

Alternate functions(4)

Pin name

Main

function(3)

(after reset)

Default

Remap

A3 B2 - - - 1 -

PE2

I/O FT

PE2

B3 A1 - - - 2 -

PE3

I/O FT

PE3

C3 B1 - - - 3 -

PE4

I/O FT

PE4

D3 C2 - - - 4 -

PE5

I/O FT

PE5

E3 D2 - - - 5 -

PE6

I/O FT

PE6

B2 E2 1 B2 1

A2 C1 2 A2 2

A1 D1 3 A1 3

VBAT

PC13-TAMPER-

RTC(5)

I/O

8 - PC14-OSC32_IN(5) I/O

VBAT

PC13(6)

PC14(6)

B1 E1 4 B1 4

PC15-

OSC32_OUT(5)

I/O

PC15(6)

C2 F2 - - - 10 -

VSS_5

D2 G2 - - - 11 -

VDD_5

C1 F1 5 C1 5 12 2

OSC_IN

VSS_5

VDD_5

OSC_IN

D1 G1 6 D1 6 13 3

OSC_OUT

E1 H2 7 E1 7 14 4

NRST

I/O

NRST

F1 H1 - E3 8 15 -

PC0

I/O

PC0

F2 J2 - E2 9 16 -

PC1

I/O

PC1

E2 J3 - F2 10 17 -

PC2

I/O

PC2

F3 K2 - -(8) 11 18 -

PC3

I/O

PC3

G1 J1 8 F1 12 19 5

VSSA

H1 K1 - - - 20 -

VREF-

J1 L1 - G1(8) - 21 -

VREF+

K1 M1 9 H1 13 22 6

VDDA

VSSA

VREF-

VREF+

VDDA

TRACECK

TRACED0

TRACED1

TRACED2

TRACED3

TAMPER-RTC

OSC32_IN

OSC32_OUT

ADC12_IN10

ADC12_IN11

ADC12_IN12

ADC12_IN13

PD0(7)

PD1(7)

28/105

DocID13587 Rev 16

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