STM32F437XX Datasheet, PDF (94/240 Pages) STMicroelectronics – ARM Cortex-M4 32b MCU+FPU, 225DMIPS, up to 2MB Flash/256+4KB RAM, crypto, USB OTG HS/FS, Ethernet, 17 TIMs, 3 ADCs, 20 comm. interfaces, camera&LCD-TFT

Electrical characteristics
STM32F437xx and STM32F439xx
6.3
Operating conditions
6.3.1
General operating conditions
Symbol
Table 17. General operating conditions
Parameter
Conditions⁽¹⁾
Min Typ
f_HCLK
f_PCLK1
f_PCLK2
V_DD
V_(3D)(D4A)
V_BAT
V₁₂
Internal AHB clock frequency
Internal APB1 clock frequency
Internal APB2 clock frequency
Standard operating voltage
Analog operating voltage
(ADC limited to 1.2 M samples)
Analog operating voltage
(ADC limited to 2.4 M samples)
Backup operating voltage
Regulator ON: 1.2 V internal
voltage on V_{CAP_1}/V_{CAP_2} pins
Regulator OFF: 1.2 V external
voltage must be supplied from
external regulator on
V_{CAP_1}/V_{CAP_2} pins⁽⁶⁾
Power Scale 3 (VOS[1:0] bits in
PWR_CR register = 0x01), Regulator
ON, over-drive OFF
0
-
Over-
Power Scale 2 (VOS[1:0] bits _{drive OFF}
-
in PWR_CR register = 0x10),
0
Regulator ON
Over-
drive ON
-
Over-
Power Scale 1 (VOS[1:0] bits _{drive OFF}
-
in PWR_CR register= 0x11),
0
Regulator ON
Over-
drive ON
-
Over-drive OFF
0
-
Over-drive ON
0
-
Over-drive OFF
0
-
Over-drive ON
0
-
1.7⁽²⁾ -
Must be the same potential as V_DD(5)
1.7⁽²⁾ -
2.4 -
Power Scale 3 ((VOS[1:0] bits in
PWR_CR register = 0x01), 120 MHz
HCLK max frequency
Power Scale 2 ((VOS[1:0] bits in
PWR_CR register = 0x10), 144 MHz
HCLK max frequency with over-drive
OFF or 168 MHz with over-drive ON
Power Scale 1 ((VOS[1:0] bits in
PWR_CR register = 0x11), 168 MHz
HCLK max frequency with over-drive
OFF or 180 MHz with over-drive ON
Max frequency 120 MHz
Max frequency 144 MHz
Max frequency 168 MHz
1.65 -
1.08 1.14
1.20 1.26
1.26 1.32
1.10 1.14
1.20 1.26
1.26 1.32
Max
120
144
168
168
180
42
45
84
90
3.6
2.4
3.6
3.6
1.20
1.32
1.40
1.20
1.32
1.38
Unit
MHz
V
V
94/240
DocID024244 Rev 10