User manual

DocID025097 Rev 1 23/39
UM1658 Hardware and layout
38
PC11 - 52 14
PC12 - 53
13
PC13
RTC_TAMP1,
RTC_TS,
RTC_OUT,
WKUP2
2
4
PC14-
OSC32_
IN
OSC32_IN 3
OSC32_IN
5
PC15-
OSC32_
OUT
OSC32_OUT 4
OSC32_OUT
6
PD2 TIM3_ETR 54 12
PF0-
OSC_IN
OSC_IN 5
OSC_IN
7
PF1-
OSC_
OUT
OSC_OUT 6
OSC_OUT
8
PF4 EVENTOUT 18
19
PF5 EVENTOUT 19
20
PF6
I2C1_SCL,
I2C2_SCL
47
19
PF7
I2C1_SDA,
I2C2_SDA
48
18
VDD_3 VDD 1 3
VDD_1 64
VDD_2 32
VDDA 13
Table 5. MCU pin description versus board function (continued)
MCU pin Board function
Main
function
Alternate
functions
LQFP64
Push button
LED
SWD
OSC
Free I/O
Power supply
CN3
P1 P2