User manual

DocID025091 Rev 1 23/30
UM1656 Hardware and layout
29
PC14-
OSC32_
IN
OSC32_IN 3
OSC32_IN
5
PC15-
OSC32_
OUT
OSC32_OUT 4
OSC32_OUT
6
PD2
TIM3_ETR/LCD_SEG31/
LCD_SEG43/LCD_COM7
54
12
PH0-
OSC_IN
OSC_IN 5
OSC_IN
7
PH1-
OSC_
OUT
OSC_OUT 6
OSC_OUT
8
VSS VSS 18 19
VDD VDD 19
20
VSS_2 VSS 47
19
VDD_2 VDD 48
18
VLCD VLCD 1 3
VDD_3 64
VDD_1 32
VDDA 13
VSS_3 63
VSS_1 31
VSSA 12
5V 1
3V 1
VDD
5
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