Datasheet

Electrical characteristics STM32F072x8 STM32F072xB
78/128 DocID025004 Rev 5
6.3.14 I/O port characteristics
General input/output characteristics
Unless otherwise specified, the parameters given in Table 53 are derived from tests
performed under the conditions summarized in Table 24: General operating conditions. All
I/Os are designed as CMOS- and TTL-compliant (except BOOT0).
Table 52. I/O current injection susceptibility
Symbol Description
Functional
susceptibility
Unit
Negative
injection
Positive
injection
I
INJ
Injected current on BOOT0 and PF1 pins –0 NA
mA
Injected current on PC0 pin –0 +5
Injected current on PA11 and PA12 pins with induced
leakage current on adjacent pins less than -1 mA
–5 NA
Injected current on all other FT and FTf pins –5 NA
Injected current on all other TTa, TC and RST pins –5 +5
Table 53. 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
--
V
hys
Schmitt trigger
hysteresis
TC and TTa I/O - 200
(1)
-
mVFT and FTf I/O - 100
(1)
-
BOOT0 - 300
(1)
-
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