STM32F101X6 Datasheet, PDF (46/64 Pages) STMicroelectronics – Access line, advanced ARM-based 32-bit MCU with Flash memory, six 16-bit timers, ADC and seven communication interfaces

Electrical characteristics
Figure 15. I/O AC characteristics definition
STM32F101xx
90%
50%
10%
10%
50%
90%
EXT ERNAL
O UTP UT
ON 50pF
tr(I _O)out
tr(I _O)out
T
Maximum fr equency is achieved if (tr + tf) £ 2/3) T and if the duty cycle is (45-55%)
when loaded by 50pF
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