Datasheet

Electrical characteristics STM32F745xx STM32F746xx
98/227 DocID027590 Rev 4
5.3 Operating conditions
5.3.1 General operating conditions
Table 17. General operating conditions
Symbol Parameter Conditions
(1)
Min Typ Max Unit
f
HCLK
Internal AHB clock frequency
Power Scale 3 (VOS[1:0] bits in
PWR_CR register = 0x01), Regulator
ON, over-drive OFF
0 - 144
MHz
Power Scale 2 (VOS[1:0] bits in
PWR_CR register = 0x10),
Regulator ON
Over-
drive
OFF
0
-168
Over-
drive
ON
-180
Power Scale 1 (VOS[1:0] bits in
PWR_CR register= 0x11),
Regulator ON
Over-
drive
OFF
0
-180
Over-
drive
ON
- 216
(2)
f
PCLK1
Internal APB1 clock frequency
Over-drive OFF 0 - 45
Over-drive ON 0 - 54
f
PCLK2
Internal APB2 clock frequency
Over-drive OFF 0 - 90
Over-drive ON 0 - 108
V
DD
Standard operating voltage - 1.7
(3)
-3.6
V
V
DDA
(4)
(5)
Analog operating voltage
(ADC limited to 1.2 M samples)
Must be the same potential as V
DD
(6)
1.7
(3)
-2.4
Analog operating voltage
(ADC limited to 2.4 M samples)
2.4 - 3.6
V
DDUSB
USB supply voltage (supply
voltage for PA11,PA12, PB14
and PB15 pins)
USB not used 1.7 3.3 3.6
USB used 3.0 - 3.6
V
BAT
Backup operating voltage - 1.65 - 3.6
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