Datasheet

STM32F050xx Electrical characteristics
Doc ID 023683 Rev 1 67/97
All I/Os are CMOS and TTL compliant (no software configuration required). Their
characteristics cover more than the strict CMOS-technology or TTL parameters. The
coverage of these requirements is shown in Figure 18 and Figure 19 for standard I/Os, and
in Figure 20 and Figure 21 for 5 V tolerant I/Os. The following curves are design simulation
results, not tested in production.
Figure 18. TC and TTa I/O input characteristics - CMOS port
Figure 19. TC and TTa I/O input characteristics - TTL port
MS30255V1
V
DD
(V)
V
IHmin
2.0
V
ILmax
0.7
V
IL
/V
IH
(V)
1.3
2.0 3.6
CMOS standard requirements V
IHmin
= 0.7V
DD
V
ILmax
= 0.3V
DD
+0.07
0.6
2.7 3.0 3.3
CMOS standard requirements V
ILmax
= 0.3V
DD
V
IHmin
= 0.445V
DD
+0.398
Input range not
guaranteed
MS30256V1
V
DD
(V)
V
IHmin
2.0
V
ILmax
0.8
V
IL
/V
IH
(V)
1.3
2.0 3.6
TTL standard requirements V
IHmin
= 2 V
V
ILmax
= 0.3V
DD
+0.07
0.7
2.7 3.0 3.3
TTL standard requirements V
ILmax
= 0.8 V
V
IHmin
= 0.445V
DD
+0.398
Input range not
guaranteed