Electrical schematics UM1974
74/82 DocID028599 Rev 7
Figure 15. Top and power
16
TOP  &  POWER
MB1137 B-01
8/19/2016
Title:
Size: Reference:
Date: Sheet: of
A4
Revision:
NUCLEO-XXXXZX
Project:
+3V3
C20
1uF_X5R_0603
C22
100nF
C19
100nF
VIN
+5V
VDD
JP5
R29
1K
C17
10uF(25V)
C18
10uF
Vin
3
Vout
2
1
Tab
4
U5
LD1117S50TR
EN
1
GND
2
VO
4
NC
5
GND
0
VI
6
PG
3
U6 LD39050PU33R
Note1:  Text  in  italic  placed  on  a  wire  does  not  correspond  to  net  name.  It  just 
helps  to  identify  rapidly  Arduino's  signal  related  to  this  wire.
2.  Add  C58  4.7uF  ceramic  capacitor  on  VDD  from  A-01  to  B-01
3.  R33's  value  changed  to  200Kohm  from  A-01  to  B-01
4.  Add  pull-up  &  pull-down  resistors  on  PB2  for  BOOT1  (F4  series)  from  A-01  to 
5.  All  peripherals'  power  changed  to  +3V3_PER  from  A-01  to  B-01
6.  C35  &  C36's  value  changed  to  2.7pF  from  A-01  to  B-01
7.  Add  R76  1.5K  pull-up  circuit  to  USB_DP  for  F303ZE  only  from  A-01
8.  LD1  can  be  controlled  by  PB0  from  A-01  to  B-01
9.  D11  on  CN7  can  be  set  to  PB5  from  A-01  to  B-01
Power  Switch  to  supply  +5V 
from  STLINK  USB
C16
4.7uF
IN
1
IN
2
ON
3
GND
4
SET
5
OUT
6
OUT
7
FAULT
8
U4
ST890CDR
R27
10K
R28
2K7
C11
100nF
1 2 LD5
Red
R21
1K
SB1 Open
U5V
SB3 Closed
PA[0..15]
PB[0..15]
PC[0..15]
NRST
BOOT0
PD[0..15]
PE[0..15]
PF[0..15]
PG[0..15]
PH[0..2]
COMP2_INP
U_Connectors
Connectors.SchDoc
TMS
TCK
MCO
NRST
STLK_RX
STLK_TX
SWO
PWR_ENn
U_ST_LINK_V2-1
ST_LINK_V2-1.SCHDOC
RMII_TXD0
RMII_TX_EN
RMII_RXD0
RMII_REF_CLK
RMII_CRS_DV
RMII_MDC
RMII_MDIO
NRST
RMII_TXD1
RMII_RXD1
U_Ethernet
Ethernet.SchDoc
6 5
4 3
2 1
JP3
Header  3X2
VIN_5V
SB2 Closed
+3V3_PER
12
LD6
Green
NRST
MCO
STLK_TX
STLK_RX
PA[0..15]
PB[0..15]
PC[0..15]
TCK
TMS
SWO
BOOT0
PD[0..15]
PE[0..15]
PF[0..15]
PG[0..15]
PH[0..2]
USB_DM
USB_DP
USB_GPIO_OUT
USB_GPIO_IN
USB_ID
USB_VBUS
RMII_TXD0
RMII_TX_EN
RMII_RXD0
RMII_REF_CLK
RMII_CRS_DV
RMII_MDC
RMII_MDIO
RMII_TXD1
RMII_RXD1
COMP2_INP
U_MCU_144
MCU_144.SchDoc
USB_PowerSwitchOn
USB_OverCurrent
USB_DM
USB_DP
USB_ID
USB_VBUS
USB_Disconnect
VBUS_DET
U_USB
USB.SchDoc
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