Datasheet
Electrical characteristics STM32F303x6/x8
80/121 DocID025083 Rev 7
Table 54. I/O AC characteristics
(1)
OSPEEDRy
[1:0] value
(1)
Symbol Parameter Conditions Min. Max. Unit
x0
f
max(IO)out
Maximum frequency
(2)
C
L
= 50 pF, V
DD
= 2 V to 3.6 V - 12
(3)
MHz
t
f(IO)out
Output high to low-level
fall time
C
L
= 50 pF, V
DD
= 2 V to 3.6 V
- 125
(3)
ns
t
r(IO)out
Output low to high-level
rise time
- 125
(3)
01
f
max(IO)out
Maximum frequency
(2)
C
L
= 50 pF, V
DD
= 2 V to 3.6 V - 410
(3)
MHz
t
f(IO)out
Output high to low-level
fall time
C
L
= 50 pF, V
DD
= 2 V to 3.6 V
-
25
(3)
ns
t
r(IO)out
Output low to high-level
rise time
-
25
(3)
11
f
max(IO)out
Maximum frequency
(2)
C
L
= 30 pF, V
DD
= 2.7 V to 3.6 V - 50
(3)
MHz
C
L
= 50 pF, V
DD
= 2.7 V to 3.6 V - 30
(3)
MHz
C
L
= 50 pF, V
DD
= 2 V to 2.7 V - 20
(3)
MHz
t
f(IO)out
Output high to low-level
fall time
C
L
= 30 pF, V
DD
= 2.7 V to 3.6 V - 5
(3)
ns
C
L
= 50 pF, V
DD
= 2.7 V to 3.6 V - 8
(3)
C
L
= 50 pF, V
DD
= 2 V to 2.7 V - 12
(3)
t
r(IO)out
Output low to high-level
rise time
C
L
= 30 pF, V
DD
= 2.7 V to 3.6 V - 5
(3)
C
L
= 50 pF, V
DD
= 2.7 V to 3.6 V - 8
(3)
C
L
= 50 pF, V
DD
= 2 V to 2.7 V - 12
(3)
FM+
configuration
(4)
f
max(IO)out
Maximum frequency
(2)
C
L
= 50 pF, V
DD
= 2 V to 3.6 V
-2
(4)
MHz
t
f(IO)out
Output high to low-level
fall time
-12
(4)
ns
t
r(IO)out
Output low to high-level
rise time
-34
(4)
-t
EXTIpw
Pulse width of external
signals detected by the
EXTI controller
-10
(3)
-ns
1. The I/O speed is configured using the OSPEEDRx[1:0] bits. Refer to the RM0364 reference manual for a description of
GPIO Port configuration register.
2. The maximum frequency is defined in Figure 23.
3. Guaranteed by design, not tested in production.
4. The I/O speed configuration is bypassed in FM+ I/O mode. Refer to the STM32F30x and
STM32F301xx reference manual
RM0364 for a description of FM+ I/O mode configuration.
Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.