STM32F031E6T7(2015) 查看數據表（PDF） - STMicroelectronics
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STM32F031E6T7
(Rev.:2015)
(Rev.:2015)
STMicroelectronics
STM32F031E6T7 Datasheet PDF : 106 Pages
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Electrical characteristics
STM32F031x4 STM32F031x6
Input/output AC characteristics
The definition and values of input/output AC characteristics are given in Figure 22 and
Table 48, respectively. Unless otherwise specified, the parameters given are derived from
tests performed under the ambient temperature and supply voltage conditions summarized
in Table 18: General operating conditions.
Table 48. I/O AC characteristics(1)(2)
OSPEEDRy
[1:0]
value(1)
Symbol
Parameter
Conditions
Min Max Unit
fmax(IO)out Maximum frequency(3)
-
x0
tf(IO)out Output fall time
CL = 50 pF
-
tr(IO)out Output rise time
-
fmax(IO)out Maximum frequency(3)
-
01
tf(IO)out Output fall time
CL = 50 pF
-
tr(IO)out Output rise time
-
CL = 30 pF, VDDIOx ≥ 2.7 V -
fmax(IO)out Maximum frequency(3) CL = 50 pF, VDDIOx ≥ 2.7 V -
CL = 50 pF, VDDIOx < 2.7 V -
CL = 30 pF, VDDIOx ≥ 2.7 V -
11
tf(IO)out Output fall time
CL = 50 pF, VDDIOx ≥ 2.7 V -
CL = 50 pF, VDDIOx < 2.7 V -
CL = 30 pF, VDDIOx ≥ 2.7 V -
tr(IO)out Output rise time
CL = 50 pF, VDDIOx ≥ 2.7 V -
CL = 50 pF, VDDIOx < 2.7 V -
Fm+
fmax(IO)out Maximum frequency(3)
-
configuration
(4)
tf(IO)out
Output fall time
CL = 50 pF
-
tr(IO)out Output rise time
-
Pulse width of external
tEXTIpw signals detected by
10
the EXTI controller
2 MHz
125
ns
125
10 MHz
25
ns
25
50
30 MHz
20
5
8
12
ns
5
8
12
2 MHz
12
ns
34
-
ns
1. The I/O speed is configured using the OSPEEDRx[1:0] bits. Refer to the STM32F0xxxx RM0091 reference
manual for a description of GPIO Port configuration register.
2. Guaranteed by design, not tested in production.
3. The maximum frequency is defined in Figure 22.
4. When Fm+ configuration is set, the I/O speed control is bypassed. Refer to the STM32F0xxxx reference
manual RM0091 for a detailed description of Fm+ I/O configuration.
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DocID025743 Rev 4
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