Datasheet

Electrical characteristics STM32F103x4, STM32F103x6
58/90 Doc ID 15060 Rev 6
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 23 and Figure 24 for standard I/Os, and
in Figure 25 and Figure 26 for 5 V tolerant I/Os.
Figure 23. Standard I/O input characteristics - CMOS port
Figure 24. Standard I/O input characteristics - TTL port
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