Datasheet

Electrical characteristics STM32F303x6/x8
76/121 DocID025083 Rev 7
Note: It is recommended to add a Schottky diode (pin to ground) to the analog pins that may
potentially inject negative currents.
6.3.14 I/O port characteristics
General input/output characteristics
Unless otherwise specified, the parameters given in Table 52 are derived from tests
performed under the conditions summarized in Table 20. All I/Os are CMOS and TTL
compliant.
I
INJ
Injected current on PB0, PB1, PB2, PB12, PB13,
PB14, PB15 with induced leakage current on other
pins from this group less than -50 µA
– 5 -
mA
Injected current on PC0, PC1, PC2, PC3, PA0, PA1,
PA2, PA3, PA4, PA5, PA6, PA7, PC4, PC5, PB2,
PB0, PB1, PB12, PB13, PB14, PB15 with induced
leakage current on other pins from this group less
than 400 µA
-+5
Injected current on any other FT and FTf pins – 5
NA (Injection
is not possi-
ble)
Injected current on any other pins – 5 +5
Table 51. I/O current injection susceptibility (continued)
Symbol Description
Functional susceptibility
Unit
Negative
injection
Positive
injection
Table 52. I/O static characteristics
Symbol Parameter Conditions Min. Typ. Max. Unit
V
IL
Low-level input
voltage
TT, TC and TTa I/O - - 0.3 V
DD
+0.07
(1)
V
FT and FTf I/O - - 0.475 V
DD
-0.2
(1)
BOOT0 - - 0.3 V
DD
–0.3
(1)
All I/Os except BOOT0 - - 0.3 V
DD
(2)
V
IH
High-level input
voltage
TTa and TT I/O 0.445 V
DD
+0.398
(1)
--
FT and FTf I/O 0.5 V
DD+0.2
(1)
--
BOOT0 0.2 V
DD
+0.95
(1)
--
All I/Os except BOOT0 0.7 V
DD
(2)
--
V
hys
Schmitt trigger
hysteresis
TT, TC and TTa I/O - 200
(1)
-
mVFT and FTf I/O - 100
(1)
-
BOOT0 - 300
(1)
-
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