CD00161566 Datasheet, PDF (64/105 Pages) STMicroelectronics – nullMedium-density performance line ARM-based 32-bit MCU

Electrical characteristics
STM32F103x8, STM32F103xB
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 26 and Figure 27 for standard I/Os, and
in Figure 28 and Figure 29 for 5 V tolerant I/Os.
Figure 26. Standard I/O input characteristics - CMOS port
VIH/VIL (V)
7_{IHmin 1.3}
7_{ILmax 0.8}
0.7
Tested ^{in production}
Tested ^{in production}
2
Area not
determined


CMOS ^{standard requirement VIH=0.65VDD}




 ^
VBaIHs=e0d.4o1n(VdeDsDig-n2)s+i1m.3ulations
VBIaL=se0d.2o8n(VdDeDsi-g2n)+s0im.8ulations
CMOS ^{standard requirement VIL=0.35VDD}
2.7
3
3.3
3.6
VDD (V)
ai17277c
Figure 27. Standard I/O input characteristics - TTL port
VIH/VIL (V)
7_{IHmin 2.0}
1.3
7_{ILmax 0.8}
TTL requirements VIH =2V
2
2.16
TTL requirements VIL=0.8V
Area not
determined
1.96 _{BVaIsHe=d0.o4n1(dVeDsiDgn-2s)+im1u.3lations}
1.25 _{BVaILs=e0d.2o8n(dVeDsDig-n2)s+im0.u8lations}
3.6
VDD (V)
ai17278b
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