User manual

Electrical schematics UM1724 54/61 DocID025833 Rev 9
7 Electrical schematics
Figure 25 to Figure 28 show the electrical schematics of the STM32 Nucleo board.
Figure 25. Electrical schematics (1/4)
14
TOP & POWER
MB1136 C.3
12/9/2014
Title:
Size: Reference:
Date: Sheet: of
A4
Revision:
NUCLEO-XXXXRX
Project:
R28
4K7
U5V
+3V3
C18
1uF_X5R_0603
C20
100nF
C19
100nF
VIN
+5V
VDD
JP6
TMS
TCK
MCO
NRST
STLK_RX
STLK_TX
SWO
PWR_ENn
U_ST_LINK_V2-1
ST_LINK_V2-1.SCHDOC
LD3
RED
R32
1K
4
3 5
G
S
D
6 7 8 2 1
T2
STS7PF30L
C16
10uF(25V)
C17
10uF
Vin
3
Vout
2
1
Tab
4
U3
LD1117S50TR
PA[0..15]
PB[0..15]
PC[0..15]
PF[4..7]
PD2
PD8
PF[0..1]
NRST
BOOT0
U_Connectors
Connectors.SchDoc
NRST
MCO
USART_RX
USART_TX
PA[0..15]
PB[0..15]
PC[0..15]
PF[4..7]
PD2
TCK
TMS
SWO
PD8
PF[0..1]
BOOT0
U_MCU_64
MCU_64.SchDoc
SB1
SB2
EN
1
GND
2
VO
4
NC
5
GND
0
VI
6
PG
3
U4 LD39050PU33R
Note1: Text in italic placed on a wire doesn’ t correspond to net name. It just
helps to identify rapidly Arduino's signal related to this wire.
Note2: Remove [N/A] on R34, R36, C31, C32 , X2 from C.1 to C.2
Note3: Add “ default open” on SB48, SB49, SB55 from C.1 to C.2
Note4:
Replace “ default open” by “ default closed” on SB16 & SB50 from C.1 to
C.2
Note5: C31&C32 value changed from 10pF to 4.3pF to fit with new 32K crystal
A
BS25-32.768KHZ-6-T from C.2 to C.3
Note6: C26's value changed from 2.2uF to 4.7uF from C.2 to C.3
Note7: SB16 & SB50 default open and SB55 defult closed for L476RG from C.2
to C.3
Default: open
3
2
1
JP5
C21
1uF_X5R_0603
E5V
D4
STPS2L30A