Datasheet

Electrical characteristics STM32L011x3/4
78/119 DocID027973 Rev 5
Input/output AC characteristics
The definition and values of input/output AC characteristics are given in Figure 25 and
Table 52, respectively.
Unless otherwise specified, the parameters given in Table 52 are derived from tests
performed under ambient temperature and V
DD
supply voltage conditions summarized in
Table 18.
Table 52. I/O AC characteristics
(1)(2)
OSPEEDRx
[1:0] bit
value
(1)
Symbol Parameter Conditions Min Max
(3)
Unit
00
f
max(IO)out
Maximum frequency
(4)
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 - 100
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 - 320
01
f
max(IO)out
Maximum frequency
(4)
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 - 0.6
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 - 30
ns
C
L
= 50 pF, V
DD
= 1.65 V to 2.7 V - 65
10
F
max(IO)out
Maximum frequency
(4)
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 - 13
ns
C
L
= 50 pF, V
DD
= 1.65 V to 2.7 V - 28
11
F
max(IO)out
Maximum frequency
(4)
C
L
= 30 pF, V
DD
= 2.7 V to 3.6 V - 35
MHz
C
L
= 50 pF, V
DD
= 1.65 V to 2.7 V - 10
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 - 6
ns
C
L
= 50 pF, V
DD
= 1.65 V to 2.7 V - 17
-t
EXTIpw
Pulse width of external
signals detected by the
EXTI controller
-8-ns
1. The I/O speed is configured using the OSPEEDRx[1:0] bits. Refer to the line reference manual for a description of GPIO
Port configuration register.
2. BOOT0/PB9 maximum input frequency is 10 kHz (1.65 V < V
DD
< 2.7 V) and 5 MHz (2.7 V < V
DD
<3.6V).
3. Guaranteed by design. Not tested in production.
4. The maximum frequency is defined in Figure 25.
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