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STM32L151xC/C-A STM32L152xC/C-A
Electrical characteristics
113
6.3.13 I/O
port
characteristics
General input/output characteristics
Unless otherwise specified, the parameters given in
are derived from tests
performed under the conditions summarized in
. All I/Os are CMOS and TTL
compliant.
Table 42. I/O static characteristics
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
V
IL
Input low level voltage
-
-
0.3V
DD
(1)
V
V
IH
Input high level voltage
Standard I/O
0.7 V
DD
-
-
FT I/O
-
-
BOOT0 I/O
-
-
V
hys
I/O Schmitt trigger voltage
hysteresis
(2)
Standard I/O
-
10%
V
DD
(3)
-
I
lkg
Input leakage current
(4)
V
SS
≤
V
IN
≤
V
DD
I/Os with LCD
-
-
±50
nA
V
SS
≤
V
IN
≤
V
DD
I/Os with analog
switches
-
-
±50
V
SS
≤
V
IN
≤
V
DD
I/Os with analog
switches and LCD
-
-
±50
V
SS
≤
V
IN
≤
V
DD
I/Os with USB
-
-
±250
V
SS
≤
V
IN
≤
V
DD
Standard I/Os
-
-
±50
FT I/O
V
DD
≤
V
IN
≤
5V
-
-
±10
uA
R
PU
Weak pull-up equivalent
resistor
V
IN
=
V
SS
30
45
60
k
Ω
R
PD
Weak pull-down equivalent
resistor
V
IN
=
V
DD
30
45
60
k
Ω
C
IO
I/O pin capacitance
-
-
5
-
pF
1. Guaranteed by test in production
2. Hysteresis voltage between Schmitt trigger switching levels. Guaranteed by characterization results, not
tested in production.
3. With a minimum of 200 mV. Based on characterization, not tested in production.
4. The max. value may be exceeded if negative current is injected on adjacent pins.
5. Pull-up and pull-down resistors are designed with a true resistance in series with a switchable PMOS/NMOS.
.