Figure 22. Tc And Tta I/O Input Characteristics - STMicroelectronics STM32F042G4 Manual

Electrical characteristics
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
5 V tolerant I/Os. The following curves are design simulation results, not tested in
production.
3
V (V)
IN
2.5
TESTED RANGE
2
1.5
1
0.5
0
1.6 1.8
78/117

Figure 22. TC and TTa I/O input characteristics

UNDEFINED INPUT RANGE
2 2.2 2.4
DocID025832 Rev 2
Figure 22 for standard I/Os, and in
TTL standard requirement TTL standard requirement
TESTED RANGE
2.6 2.8 3
STM32F042xx
Figure 23
TTL standard requirement
3.2 3.4
V
MS32130V3
for
3.6
(V)
DDIOx