Electrical characteristics
STM32F031x4 STM32F031x6
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DocID025743 Rev 3
Functional susceptibility to I/O current injection
While a simple application is executed on the device, the device is stressed by injecting
current into the I/O pins programmed in floating input mode. While current is injected into
the I/O pin, one at a time, the device is checked for functional failures.
The failure is indicated by an out of range parameter: ADC error above a certain limit (higher
than 5 LSB TUE), out of conventional limits of induced leakage current on adjacent pins (out
of the -5 µA/+0 µA range) or other functional failure (for example reset occurrence or
oscillator frequency deviation).
The characterization results are given in
Negative induced leakage current is caused by negative injection and positive induced
leakage current is caused by positive injection.
6.3.14 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 45. 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 and FTf pins
–5
NA
Injected current on all TTa, TC and RESET pins
–5
+5
Table 46. 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
(1)
BOOT0
-
-
0.3 V
DDIOx
–0.3
(1)
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
(1)
-
-
V
FT and FTf I/O
0.5 V
DDIOx
+0.2
(1)
-
-
BOOT0
0.2 V
DDIOx
+0.95
(1)
-
-
All I/Os except
BOOT0 pin
0.7 V
DDIOx
-
-
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http://www.vicor.top/
021-31660491
