STMicroelectronics STM32F038C6, Руководство пользователя

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STM32F038x6 Electrical characteristics
79
Input/output AC characteristics
The definition and values of input/output AC characteristics are given in Figure 21 and
Table 46 , 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 .
Figure 21. I/O AC characteristics definition
Table 46. I/O AC characteristics
(1)(2)
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.
OSPEEDRy
[1:0] value
(1)
Symbol Parameter Conditions Min Max Unit
x0
f
max(IO)out
Maximum frequency
(3)
3. The maximum frequency is defined in Figure 21 .
C
L
= 50 pF
- 1 MHz
t
f(IO)out
Output fall time - 125
ns
t
r(IO)out
Output rise time - 125
01
f
max(IO)out
Maximum frequency
(3)
C
L
= 50 pF
- 4 MHz
t
f(IO)out
Output fall time - 62.5
ns
t
r(IO)out
Output rise time - 62.5
11
f
max(IO)out
Maximum frequency
(3)
C
L
= 50 pF
- 10 MHz
t
f(IO)out
Output fall time - 25
ns
t
r(IO)out
Output rise time - 25
Fm+
configuration
(4)
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.
f
max(IO)out
Maximum frequency
(3)
CL = 50 pF
- 0.5 MHz
t
f(IO)out
Output fall time - 16
ns
t
r(IO)out
Output rise time - 44
t
EXTIpw
Pulse width of external
signals detected by the
EXTI controller
10 - ns
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