Datasheet

Electrical characteristics STM32L433xx
146/224 DocID028794 Rev 4
6.3.14 I/O port characteristics
General input/output characteristics
Unless otherwise specified, the parameters given in Table 70 are derived from tests
performed under the conditions summarized in Table 22: General operating conditions. All
I/Os are designed as CMOS- and TTL-compliant.
Table 70. I/O static characteristics
Symbol Parameter Conditions Min Typ Max Unit
V
IL
(1)
I/O input low level
voltage
1.62 V<V
DDIOx
<3.6 V - - 0.3xV
DDIOx
(2)
V
I/O input low level
voltage
1.62 V<V
DDIOx
<3.6 V - - 0.39xV
DDIOx
-0.06
(3)
I/O input low level
voltage
1.08 V<V
DDIOx
<1.62 V - - 0.43xV
DDIOx
-0.1
(3)
V
IH
(1)
I/O input high level
voltage
1.62 V<V
DDIOx
<3.6 V 0.7xV
DDIOx
(2)
--
V
I/O input high level
voltage
1.62 V<V
DDIOx
<3.6 V 0.49xV
DDIOX
+0.26
(3)
--
I/O input high level
voltage
1.08 V<V
DDIOx
<1.62 V 0.61xV
DDIOX
+0.05
(3)
--
V
hys
(3)
TT_xx, FT_xxx and
NRST I/O input
hysteresis
1.62 V<V
DDIOx
<3.6 V - 200 -
mV
FT_sx 1.08 V<V
DDIOx
<1.62 V - 150 -
I
lkg
(4)
FT_xx input leakage
current
(3)(5)
V
IN

Max(V
DDXXX
)
(6)(7)
--±100
nA
Max(V
DDXXX
)  V
IN

Max(V
DDXXX
)+1 V
(6)(7)
- - 650
Max(V
DDXXX
)+1 V <
VIN  5.5 V
(6)(7)
- - 200
FT_lu, FT_u and
PC3 I/O
V
IN

Max(V
DDXXX
)
(6)(7)
--±150
Max(V
DDXXX
)  V
IN

Max(V
DDXXX
)+1 V
(6)(7)
- - 2500
(3)
Max(V
DDXXX
)+1 V <
VIN  5.5 V
(6)(7)
- - 250
TT_xx input leakage
current
V
IN
 Max(V
DDXXX
)
(6)
--±150
Max(V
DDXXX
)  V
IN
<
3.6 V
(6)
- - 2000
(3)
R
PU
Weak pull-up
equivalent resistor
(8)
V
IN
= V
SS
25 40 55 k
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