ST STM32F4 Series

Reference design AN4488
38/44 DocID026304 Rev 3
8.2 Component references
Table 10. Mandatory components
Id Components name Reference Quantity Comments
1 Microcontroller STM32F407IG(H6) 1 UFBGA176 package
2 Capacitors 100 nF 14 Ceramic capacitors (decoupling capacitors)
3 Capacitor 10 µF 1 Ceramic capacitor (decoupling capacitor)
Table 11. Optional components
Id Components name Reference Quantity Comments
1 Resistor 10 kΩ 5 pull-up and pull-down for JTAG and Boot mode.
2 Resistor 390 Ω 1
Used for HSE: the value depends on the crystal
characteristics. This resistor value is given only as a
typical example.
3Resistor 0 Ω 3
Used for LSE: the value depends on the crystal
characteristics. This resistor value is given only as a
typical example.
Used as star connection point between
V
DDA
and
V
REF.
4 Capacitor 100 nF 4 Ceramic capacitor.
5 Capacitor 2 pF 2
Used for LSE: the value depends on the crystal
characteristics.
6 Capacitor 1 µF 2 Used for V
DDA
and V
REF
.
7 Capacitor 2.2 µF 2 Used for internal regulator when it is on.
8 Capacitor 20 pF 2
Used for HSE: the value depends on the crystal
characteristics.
9 Quartz 25 MHz 1 Used for HSE.
10 Quartz 32.768 kHz 1 Used for LSE.
11 JTAG connector HE10-20 1
12 Resistor 22 Ω 1 Debugger reset connection
13 Battery 3V 1
If no external battery is used in the application, it is
recommended to connect V
BAT
externally to V
DD.
14 Switch SPDT 2 Used to select the right boot mode.
15 Push-button B1 1 Reset button
16 Jumper 3 pins 2 Used to select V
BAT
source, and BYPASS_REG pin.
17 Ferrite bead FCM1608KF-601T03 1 Additional decoupling for V
DDA