Datasheet
Electrical characteristics STM32F745xx STM32F746xx
186/227 DocID027590 Rev 4
SDRAM waveforms and timings
• CL = 30 pF on data and address lines. CL = 10 pF on FMC_SDCLK unless otherwise
specified.
In all timing tables, the T
HCLK
is the HCLK clock period.
– For 3.0 V≤ V
DD
≤ 3.6 V, maximum FMC_SDCLK= 100 MHz at CL=20 pF (on
FMC_SDCLK).
– For 2.7 V≤ V
DD
≤ 3.6 V, maximum FMC_SDCLK = 90 MHz at CL=30 pF (on
FMC_SDCLK).
– For 1.71 V≤ V
DD
<1.9 V, maximum FMC_SDCLK = 70 MHz at CL=10 pF (on
FMC_SDCLK).
Figure 70. SDRAM read access waveforms (CL = 1)
-36
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