Datasheet

DocID027590 Rev 4 185/227
STM32F745xx STM32F746xx Electrical characteristics
195
Figure 69. NAND controller waveforms for common memory write access
Table 100. Switching characteristics for NAND Flash read cycles
(1)
1. Guaranteed by characterization results.
Symbol Parameter Min Max Unit
t
w(N0E)
FMC_NOE low width 4T
HCLK
−0.5 4T
HCLK
ns
t
su(D-NOE)
FMC_D[15-0] valid data before FMC_NOE high 13 -
t
h(NOE-D)
FMC_D[15-0] valid data after FMC_NOE high 3 -
t
d(ALE-NOE)
FMC_ALE valid before FMC_NOE low - 3T
HCLK
−0.5
t
h(NOE-ALE)
FMC_NWE high to FMC_ALE invalid 3T
HCLK
−2-
Table 101. Switching characteristics for NAND Flash write cycles
(1)
1. Guaranteed by characterization results.
Symbol Parameter Min Max Unit
t
w(NWE)
FMC_NWE low width 4T
HCLK
−0.5 4T
HCLK
ns
t
v(NWE-D)
FMC_NWE low to FMC_D[15-0] valid 0 -
t
h(NWE-D)
FMC_NWE high to FMC_D[15-0] invalid 3T
HCLK
−1-
t
d(D-NWE)
FMC_D[15-0] valid before FMC_NWE high 5T
HCLK
−3-
t
d(ALE-NWE)
FMC_ALE valid before FMC_NWE low - 3T
HCLK
−0.5
t
h(NWE-ALE)
FMC_NWE high to FMC_ALE invalid 3T
HCLK
−2-
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