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STM32F407IE 데이터시트(PDF) 108 Page - STMicroelectronics

부품명 STM32F407IE
상세설명  ARM Cortex-M4 32b MCUFPU, 210DMIPS, up to 1MB Flash/1924KB RAM, USB OTG HS/FS, Ethernet, 17 TIMs, 3 ADCs, 15 comm. interfaces & camera
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제조업체  STMICROELECTRONICS [STMicroelectronics]
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STM32F407IE 데이터시트(HTML) 108 Page - STMicroelectronics

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Electrical characteristics
STM32F405xx, STM32F407xx
108/180
Doc ID 022152 Rev 3
Figure 35.
I/O AC characteristics definition
11
Fmax(IO)out Maximum frequency
(4)
CL = 30 pF, VDD > 2.70 V
-
-
100(5)
MHz
CL = 30 pF, VDD > 1.8 V
-
-
50(5)
CL = 10 pF, VDD > 2.70 V
-
-
200(5)
CL = 10 pF, VDD > 1.8 V
-
-
TBD
tf(IO)out
Output high to low level fall
time
CL = 20 pF, 2.4 < VDD < 2.7 V
-
-
TBD
ns
CL = 10 pF, VDD > 2.7 V
-
-
TBD
tr(IO)out
Output low to high level rise
time
CL = 20 pF, 2.4 < VDD < 2.7 V
-
-
TBD
CL = 10 pF, VDD > 2.7 V
-
-
TBD
-tEXTIpw
Pulse width of external signals
detected by the EXTI
controller
10
-
-
ns
1.
Based on characterization data, not tested in production.
2.
The I/O speed is configured using the OSPEEDRy[1:0] bits. Refer to the STM32F20/21xxx reference manual for a
description of the GPIOx_SPEEDR GPIO port output speed register.
3.
TBD stands for “to be defined”.
4.
The maximum frequency is defined in Figure 35.
5.
For maximum frequencies above 50 MHz, the compensation cell should be used.
Table 48.
I/O AC characteristics(1)(2)(3) (continued)
OSPEEDRy
[1:0] bit
value(1)
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
ai14131
10%
90%
50%
tr(IO)out
OUTPUT
EXT ERNAL
ON 50pF
Maximum fr equency is achieved if (tr + tf) ≤ 2/3)T and if the duty cycle is (45-55%)
10%
50%
90%
when loaded by 50pF
T
tr(IO)out



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