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Electrical characteristics STM32F334x4 STM32F334x6 STM32F334x8
76/121 DocID025409 Rev 8
Figure 20. TC and TTa I/O input characteristics - TTL port
Figure 21. 5V- tolerant (FT and FTf) I/O input characteristics - CMOS port
Figure 22. 5V-tolerant (FT and FTf) I/O input characteristics - TTL port
MS30256V2
V
DD 
(V)
V
IHmin 
2.0
V
ILmax 
0.8
V
IL
/V
IH 
(V)
1.3
2.0 3.6
V
ILmax 
= 0.3V
DD
+0.07
0.7
2.7 3.0 3.3
TTL standard requirements VILmax = 0.8V
V
IHmin 
= 0.445V
DD
+0.398
Area not determined
Based on design simulations
Based on design simulations
TTL standard requirements VIHmin = 2V
V
DD 
(V)
2.0
0.5
V
IL
/V
IH 
(V)
2.0 3.6
1.0
2.7
Area not determined
MS30257V3
V
ILmax 
= 0.475V 
DD
-0.2
V
IHmin 
= 0.5V
DD
+0.2
Based on design simulations
Based on design simulations
CMOS standard requirements V
IH
min = 0.7V
DD
CMOS standard requirements V
IL
max = 0.3V
DD
MS30258V2
V
DD 
(V)
2.0
V
IL
/V
IH 
(V)
1.0
2.0 3.6
V
ILmin 
= 0.475V
DD
-0.2
0.5
V
IHmin 
= 0.5V
DD
+0.2
Area not determined
2.7
TTL standard requirements VIHmin = 2V
TTL standard requirements 
VILmax = 0.8V
0.8
Based on design simulations
Based on design simulations
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