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STM32F427AI 数据表(PDF) 94 Page - STMicroelectronics

部件名 STM32F427AI
功能描述  ARM Cortex-M4 32b MCUFPU, 225DMIPS, up to 2MB Flash/2564KB RAM, USB OTG HS/FS, Ethernet, 17 TIMs, 3 ADCs, 20 comm. interfaces, camera & LCD-TFT
PDF  239 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

STM32F427AI 数据表(HTML) 94 Page - STMicroelectronics

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Electrical characteristics
STM32F427xx STM32F429xx
94/238
DocID024030 Rev 9
6.3
Operating conditions
6.3.1
General operating conditions
Table 17. General operating conditions
Symbol
Parameter
Conditions(1)
Min
Typ
Max
Unit
fHCLK
Internal AHB clock frequency
Power Scale 3 (VOS[1:0] bits in
PWR_CR register = 0x01), Regulator
ON, over-drive OFF
0
-
120
MHz
Power Scale 2 (VOS[1:0] bits
in PWR_CR register = 0x10),
Regulator ON
Over-
drive OFF
0
-
144
Over-
drive ON
-
168
Power Scale 1 (VOS[1:0] bits
in PWR_CR register= 0x11),
Regulator ON
Over-
drive OFF
0
-
168
Over-
drive ON
-
180
fPCLK1 Internal APB1 clock frequency
Over-drive OFF
0
-
42
Over-drive ON
0
-
45
fPCLK2 Internal APB2 clock frequency
Over-drive OFF
0
-
84
Over-drive ON
0
-
90
VDD
Standard operating voltage
1.7(2)
-3.6
V
VDDA
(3)(4)
Analog operating voltage
(ADC limited to 1.2 M samples)
Must be the same potential as VDD(5)
1.7(2)
-2.4
Analog operating voltage
(ADC limited to 2.4 M samples)
2.4
-
3.6
VBAT
Backup operating voltage
1.65
-
3.6
V12
Regulator ON: 1.2 V internal
voltage on VCAP_1/VCAP_2 pins
Power Scale 3 ((VOS[1:0] bits in
PWR_CR register = 0x01), 120 MHz
HCLK max frequency
1.08 1.14
1.20
V
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
1.20 1.26
1.32
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
1.26 1.32
1.40
Regulator OFF: 1.2 V external
voltage must be supplied from
external regulator on
VCAP_1/VCAP_2 pins(6)
Max frequency 120 MHz
1.10 1.14
1.20
Max frequency 144 MHz
1.20 1.26
1.32
Max frequency 168 MHz
1.26 1.32
1.38



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