Datasheet

Electrical characteristics STM32F745xx STM32F746xx
188/227 DocID027590 Rev 4
Figure 71. SDRAM write access waveforms
Table 104. SDRAM write timings
(1)
1. Guaranteed by characterization results.
Symbol Parameter Min Max Unit
t
w(SDCLK)
FMC_SDCLK period 2T
HCLK
−0.5 2T
HCLK
+0.5
ns
t
d(SDCLKL _Data
) Data output valid time - 2
t
h(SDCLKL _Data)
Data output hold time 0.5 -
t
d(SDCLKL_Add)
Address valid time - 4
t
d(SDCLKL_SDNWE)
SDNWE valid time - 0.5
t
h(SDCLKL_SDNWE)
SDNWE hold time 0 -
t
d(SDCLKL_ SDNE)
Chip select valid time - 0.5
t
h(SDCLKL-_SDNE)
Chip select hold time 0 -
t
d(SDCLKL_SDNRAS)
SDNRAS valid time - 0.5
t
h(SDCLKL_SDNRAS)
SDNRAS hold time 0 -
t
d(SDCLKL_SDNCAS)
SDNCAS valid time - 0.5
t
d(SDCLKL_SDNCAS)
SDNCAS hold time 0 -
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