Datasheet

DS10198 Rev 8 237/270
STM32L476xx Electrical characteristics
238
Figure 56. NAND controller waveforms for common memory write access
Table 117. Switching characteristics for NAND Flash read cycles
(1)(2)
1. CL = 30 pF.
2. Guaranteed by characterization results.
Symbol Parameter Min Max Unit
T
w(N0E)
FMC_NOE low width 4T
HCLK
-1 4T
HCLK
+1
ns
T
su(D-NOE)
FMC_D[15-0] valid data before FMC_NOE high 16 -
T
h(NOE-D)
FMC_D[15-0] valid data after FMC_NOE high 6 -
T
d(NCE-NOE)
FMC_NCE valid before FMC_NOE low - 3T
HCLK
+1
T
h(NOE-ALE)
FMC_NOE high to FMC_ALE invalid 2T
HCLK
-2 -
Table 118. Switching characteristics for NAND Flash write cycles
(1)(2)
1. CL = 30 pF.
2. Guaranteed by characterization results.
Symbol Parameter Min Max Unit
T
w(NWE)
FMC_NWE low width 4T
HCLK
-1 4T
HCLK
+1
ns
T
v(NWE-D)
FMC_NWE low to FMC_D[15-0] valid - 2.5
T
h(NWE-D)
FMC_NWE high to FMC_D[15-0] invalid 3T
HCLK
-4 -
T
d(D-NWE)
FMC_D[15-0] valid before FMC_NWE high 5T
HCLK
-3 -
T
d(NCE_NWE)
FMC_NCE valid before FMC_NWE low - 3T
HCLK
+1
T
h(NWE-ALE)
FMC_NWE high to FMC_ALE invalid 2T
HCLK
-2 -
MSv38006V1
t
w(NWE)
t
h(NWE-D)
t
v(NWE-D)
FMC_NWE
FMC_NOE
FMC_D[15:0]
t
d(D-NWE)
ALE (FMC_A17)
CLE (FMC_A16)
FMC_NCEx
t
d(NCE-NWE)
t
h(NOE-ALE)
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