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STM32F427AI 数据表(PDF) 100 Page - STMicroelectronics

部件名 STM32F427AI
功能描述  32b Arm® Cortex®-M4 MCUFPU, 225DMIPS, up to 2MB Flash/2564KB RAM, USB OTG HS/FS, Ethernet, 17 TIMs, 3 ADCs, 20 com. interfaces, camera & LCD-TFT
PDF  240 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) 100 Page - STMicroelectronics

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Electrical characteristics
STM32F427xx STM32F429xx
100/240
DS9405 Rev 12
6.3.6
Overdrive switching characteristics
When the overdrive mode switches from enabled to disabled or disabled to enabled, the
system clock is stalled during the internal voltage set-up.
The overdrive switching characteristics are given in Table 23. They are subject to general
operating conditions for TA.
IRUSH(1)
InRush current on
voltage regulator power-
on (POR or wakeup
from Standby)
-
-
160
200
mA
ERUSH(1)
InRush energy on
voltage regulator power-
on (POR or wakeup
from Standby)
VDD = 1.7 V, TA = 105 °C,
IRUSH = 171 mA for 31 µs
--
5.4
µC
1. Specified by design.
2. The reset temporization is measured from the power-on (POR reset or wake-up from VBAT) to the instant
when the first instruction is read by the user application code.
Table 22. Reset and power control block characteristics (continued)
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
Table 23. Over-drive switching characteristics(1)
1. Specified by design.
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
Tod_swen
Over_drive switch
enable time
HSI
-
45
-
µs
HSE max for 4 MHz
and min for 26 MHz
45
-
100
External HSE
50 MHz
-
40
-
Tod_swdis
Over_drive switch
disable time
HSI
-
20
-
HSE max for 4 MHz
and min for 26 MHz.
20
-
80
External HSE
50 MHz
-
15
-



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