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AN4661 Datasheet(PDF) 27 Page - STMicroelectronics

Part # AN4661
Description  This application note is intended for system designers
PDF  33 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

AN4661 Datasheet(HTML) 27 Page - STMicroelectronics

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DocID027559 Rev 1
27/33
AN4661
Reference design
32
7.2
Component references
Table 7. Mandatory components
Id
Component name
Reference
Quantity
Comments
1
Microcontroller
STM32F756NGH6
1
TFBGA216 package
2
Capacitor
100 nF
19
Ceramic capacitors
(decoupling capacitors)
3
Capacitor
4.7 µF
1
Ceramic capacitor
(decoupling capacitor)
Table 8. Optional components
Id
Components
name
Reference
Quantity
Comments
1
Resistor
10 kΩ
6
Pull-up and pull-down for JTAG, BOOT0 pin, PDR
and bypass regulator
2
Resistor
0 Ω
2
– Used as star connection point between VDDA and
VREF+
– Used as star connection point between VDD_MCU
and VDDUSB
3
Capacitor
100 nF
5
Ceramic capacitor.
4
Capacitor
1.5 pF
2
Used for LSE: the value depends on the crystal
characteristics.
5
Capacitor
1 μF
3
Used for VDDA and VREF and VDDUSB.
6
Capacitor
2.2 μF
2
Used for internal regulator when it is on.
7
Capacitor
20 pF
2
Used for HSE: the value depends on the crystal
characteristics.
8
Quartz
25 MHz
1
Used for HSE.
9
Quartz
32.768 kHz
1
Used for LSE.
10
JTAG
connector
HE10-20
1
-
11
Battery
3V
1
If no external battery is used in the application, it is
recommended to connect VBAT externally to VDD.
12
Switch
SPDT
1
Used to select the right boot mode.
13
Push-button
B1
1
Reset button
14
Jumper
3 pins
2
Used to select VBAT source, and BYPASS_REG pin.
15
Ferrite bead
FCM1608KF
-601T03
1
Additional decoupling for VDDA



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