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STM32F372VB Folha de dados(PDF) 86 Page - STMicroelectronics

Nome de Peças STM32F372VB
Descrição Electrónicos  ARM Cortex-M4F 32b MCUFPU, up to 256KB Flash32KB SRAM timers
PDF  128 Pages
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Fabricante Electrônico  STMICROELECTRONICS [STMicroelectronics]
Página de início  http://www.st.com
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STM32F372VB Folha de dados(HTML) 86 Page - STMicroelectronics

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Electrical characteristics
STM32F37x
86/128
Doc ID 022691 Rev 3
Input/output AC characteristics
The definition and values of input/output AC characteristics are given in Figure 21 and
Table 54, respectively.
Unless otherwise specified, the parameters given are derived from tests performed under
ambient temperature and VDD supply voltage conditions summarized in Table 22.
Table 54.
I/O AC characteristics(1)
OSPEEDRy
[1:0] value(1)
Symbol
Parameter
Conditions
Min
Max
Unit
x0
fmax(IO)out Maximum frequency
(2)
CL = 50 pF, VDD = 2 V to 3.6 V
2
MHz
tf(IO)out
Output high to low level
fall time
CL = 50 pF, VDD = 2 V to 3.6 V
125(3)
ns
tr(IO)out
Output low to high level
rise time
125(3)
01
fmax(IO)out Maximum frequency
(2)
CL = 50 pF, VDD = 2 V to 3.6 V
10
MHz
tf(IO)out
Output high to low level
fall time
CL = 50 pF, VDD = 2 V to 3.6 V
25(3)
ns
tr(IO)out
Output low to high level
rise time
25(3)
11
fmax(IO)out Maximum frequency
(2)(3)
CL = 30 pF, VDD = 2.7 V to 3.6 V
50
MHz
CL = 50 pF, VDD = 2.7 V to 3.6 V
30
MHz
CL = 50 pF, VDD = 2 V to 2.7 V
20
MHz
tf(IO)out
Output high to low level
fall time
CL = 30 pF, VDD = 2.7 V to 3.6 V
5(3)
ns
CL = 50 pF, VDD = 2.7 V to 3.6 V
8(3)
CL = 50 pF, VDD = 2 V to 2.7 V
12(3)
tr(IO)out
Output low to high level
rise time
CL = 30 pF, VDD = 2.7 V to 3.6 V
5(3)
CL = 50 pF, VDD = 2.7 V to 3.6 V
8(3)
CL = 50 pF, VDD = 2 V to 2.7 V
12(3)
FM+
configuration
(4)
fmax(IO)out Maximum frequency
(2)
CL = 50 pF, VDD = 2 V to 3.6 V
2MHz
tf(IO)out
Output high to low level
fall time
12
ns
tr(IO)out
Output low to high level
rise time
34
tEXTIpw
Pulse width of external
signals detected by the
EXTI controller
10
ns
1.
The I/O speed is configured using the OSPEEDRx[1:0] bits. Refer to the RM0313 reference manual for a description of
GPIO Port configuration register.
2.
The maximum frequency is defined in Figure 21.
3.
Guaranteed by design, not tested in production.
4.
The I/O speed configuration is bypassed in FM+ I/O mode. Refer to the STM32F37xx and STM32F38xx reference manual
RM0313 for a description of FM+ I/O mode configuration



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