Table 44. I/O Ac Characteristics - STMicroelectronics STM32L151CB Manual

STM32L151x6/8/B, STM32L152x6/8/B
Input/output AC characteristics
The definition and values of input/output AC characteristics are given in
Table 44, respectively.
Unless otherwise specified, the parameters given in
performed under ambient temperature and V
Table 13.
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 STM32L15xx6/8/B 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

Table 44. I/O AC characteristics

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 19.
DocID17659 Rev 10
Table 44
supply voltage conditions summarized in
DD
(1)
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 19 and
are derived from tests
(2)
Min Max
- 400
- 400
- 625
- 625
- 2
- 1
- 125
- 250
- 10
- 2
- 25
- 125
- 50
- 8
- 5
- 30
8 -
Unit
kHz
ns
MHz
ns
MHz
ns
MHz
ns
83/129
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