STMicroelectronics STM32L151CCT6, Руководство пользователя

Страница: 88 / 135

Electrical characteristics STM32L151xC STM32L152xC
88/135 DocID022799 Rev 10
Input/output AC characteristics
The definition and values of input/output AC characteristics are given in Figure 19 and
Table 45 , respectively.
Unless otherwise specified, the parameters given in Table 45 are derived from tests
performed under the conditions summarized in Table 14 .
Table 45. I/O AC characteristics
(1)
OSPEEDRx
[1:0] bit
value
(1)
Symbol Parameter Conditions Min Max
(2)
Unit
00
f
max(IO)out
Maximum frequency
(3)
C
L
= 50 pF, V
DD
= 2.7 V to 3.6 V - 400
kHz
C
L
= 50 pF, V
DD
= 1.65 V to 2.7 V - 400
t
f(IO)out
t
r(IO)out
Output rise and fall time
C
L
= 50 pF, V
DD
= 2.7 V to 3.6 V - 625
ns
C
L
= 50 pF, V
DD
= 1.65 V to 2.7 V - 625
01
f
max(IO)out
Maximum frequency
(3)
C
L
= 50 pF, V
DD
= 2.7 V to 3.6 V - 2
MHz
C
L
= 50 pF, V
DD
= 1.65 V to 2.7 V - 1
t
f(IO)out
t
r(IO)out
Output rise and fall time
C
L
= 50 pF, V
DD
= 2.7 V to 3.6 V - 125
ns
C
L
= 50 pF, V
DD
= 1.65 V to 2.7 V - 250
10
F
max(IO)out
Maximum frequency
(3)
C
L
= 50 pF, V
DD
= 2.7 V to 3.6 V - 10
MHz
C
L
= 50 pF, V
DD
= 1.65 V to 2.7 V - 2
t
f(IO)out
t
r(IO)out
Output rise and fall time
C
L
= 50 pF, V
DD
= 2.7 V to 3.6 V - 25
ns
C
L
= 50 pF, V
DD
= 1.65 V to 2.7 V - 125
11
F
max(IO)out
Maximum frequency
(3)
C
L
= 30 pF, V
DD
= 2.7 V to 3.6 V - 50
MHz
C
L
= 50 pF, V
DD
= 1.65 V to 2.7 V - 8
t
f(IO)out
t
r(IO)out
Output rise and fall time
C
L
= 30 pF, V
DD
= 2.7 V to 3.6 V - 5
ns
C
L
= 50 pF, V
DD
= 1.65 V to 2.7 V - 30
- t
EXTIpw
Pulse width of external
signals detected by the
EXTI controller
- 8 -
1. The I/O speed is configured using the OSPEEDRx[1:0] bits. Refer to the STM32L151xx, STM32L152xx and STM32L162xx
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 19 .