DocID026079 Rev 3
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STM32F038x6
Electrical characteristics
79
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
Table 18: General operating conditions
. All
I/Os are designed as CMOS- and TTL-compliant (except BOOT0).
Table 43. I/O current injection susceptibility
Symbol
Description
Functional
susceptibility
Unit
Negative
injection
Positive
injection
I
INJ
Injected current on BOOT0
–0
NA
mA
Injected current on all FT, FTf and POR pins
–5
NA
Injected current on all TTa, TC and RESET pins
–5
+5
Table 44. I/O static characteristics
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
V
IL
Low level input
voltage
TC and TTa I/O
-
-
0.3 V
DDIOx
+0.07
(1)
V
FT and FTf I/O
-
-
0.475 V
DDIOx
–0.2
BOOT0
-
-
0.3 V
DDIOx
–0.3
All I/Os except
BOOT0 pin
-
-
0.3 V
DDIOx
V
IH
High level input
voltage
TC and TTa I/O
0.445 V
DDIOx
+0.398
-
-
V
FT and FTf I/O
0.5 V
DDIOx
+0.2
-
-
BOOT0
0.2 V
DDIOx
+0.95
-
-
All I/Os except
BOOT0 pin
0.7 V
DDIOx
-
-
V
hys
Schmitt trigger
hysteresis
TC and TTa I/O
-
200
-
mV
FT and FTf I/O
-
100
-
BOOT0
-
300
-
I
lkg
Input leakage
current
(2)
TC, FT and FTf I/O
TTa in digital mode
V
SS
≤
V
IN
≤
V
DDIOx
-
-
±
0.1
µA
TTa in digital mode
V
DDIOx
≤
V
IN
≤
V
DDA
-
-
1
TTa in analog mode
V
SS
≤
V
IN
≤
V
DDA
-
-
±
0.2
FT and FTf I/O
V
DDIOx
≤
V
IN
≤
5 V
-
-
10