Table 40. I/O Ac Characteristics - STMicroelectronics STM32L151CB Manual

STM32L151xx, STM32L152xx
Input/output AC characteristics
The definition and values of input/output AC characteristics are given in
Table 40, respectively.
Unless otherwise specified, the parameters given in
performed under ambient temperature and V
Table 9.
Table 40. I/O AC characteristics
OSPEEDRx
[1:0] bit Symbol
(1)
value
f
max(IO)out
00
t
f(IO)out
t
r(IO)out
f
max(IO)out
01
t
f(IO)out
t
r(IO)out
F
max(IO)out
10
t
f(IO)out
t
r(IO)out
F
max(IO)out
11
t
f(IO)out
t
r(IO)out
- t
EXTIpw
1. The I/O speed is configured using the OSPEEDRx[1:0] bits. Refer to the STM32L15xxx 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
(1)
Parameter
(3)
Maximum frequency
Output rise and fall time
(3)
Maximum frequency
Output rise and fall time
(3)
Maximum frequency
Output rise and fall time
(3)
Maximum frequency
Output rise and fall time
Pulse width of external
signals detected by the
EXTI controller
Figure 18.
Doc ID 17659 Rev 6
Table 40
supply voltage conditions summarized in
DD
Conditions
C = 50 pF, V = 2.7 V to 3.6 V
L DD
C = 50 pF, V = 1.65 V to 2.7 V
L DD
C = 50 pF, V = 2.7 V to 3.6 V
L DD
C = 50 pF, V = 1.65 V to 2.7 V
L DD
C = 50 pF, V = 2.7 V to 3.6 V
L DD
C = 50 pF, V = 1.65 V to 2.7 V
L DD
C = 50 pF, V = 2.7 V to 3.6 V
L DD
C = 50 pF, V = 1.65 V to 2.7 V
L DD
C = 50 pF, V = 2.7 V to 3.6 V
L DD
C = 50 pF, V = 1.65 V to 2.7 V
L DD
C = 50 pF, V = 2.7 V to 3.6 V
L DD
C = 50 pF, V = 1.65 V to 2.7 V
L DD
C = 50 pF, V = 2.7 V to 3.6 V
L DD
C = 50 pF, V = 1.65 V to 2.7 V
L DD
C = 30 pF, V = 2.7 V to 3.6 V
L DD
C = 50 pF, V = 1.65 V to 2.7 V
L DD
Electrical characteristics
Figure 18 and
are derived from tests
(2)
Min Max
400
TBD
625
TBD
2
1
125
TBD
10
2
25
TBD
50
8
5
TBD
8
Unit
kHz
ns
MHz
ns
MHz
ns
MHz
ns
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