Datasheet

Electrical characteristics STM32H743xI
154/231 DS12110 Rev 5
Figure 34. NAND controller waveforms for common memory write access
069
W
Z1:(
W
K1:('
W
Y1:('
)0&B1:(
)0&B1
2(
)0&B'>@
W
G'1:(
$/()0&B$
&/()0&B$
)0&B1&([
W
G$/(12(
W
K12($/(
Table 76. Switching characteristics for NAND Flash read cycles
(1)
Symbol Parameter Min Max Unit
t
w(N0E)
FMC_NOE low width 4T
fmc_ker_ck
− 0.5 4T
fmc_ker_ck
+ 0.5
ns
t
su(D-NOE)
FMC_D[15-0] valid data before FMC_NOE high 8 -
t
h(NOE-D)
FMC_D[15-0] valid data after FMC_NOE high 0 -
t
d(ALE-NOE)
FMC_ALE valid before FMC_NOE low - 3T
fmc_ker_ck
+ 1
t
h(NOE-ALE)
FMC_NWE high to FMC_ALE invalid 4T
fmc_ker_ck
− 2-
1. Guaranteed by characterization results.
Table 77. Switching characteristics for NAND Flash write cycles
(1)
Symbol Parameter Min Max Unit
t
w(NWE)
FMC_NWE low width 4T
fmc_ker_ck
− 0.5 4T
fmc_ker_ck
+ 0.5
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 2T
fmc_ker_ck
− 0.5 -
t
d(D-NWE)
FMC_D[15-0] valid before FMC_NWE high 5T
fmc_ker_ck
− 1-
t
d(ALE-NWE)
FMC_ALE valid before FMC_NWE low - 3T
fmc_ker_ck
+ 0.5
t
h(NWE-ALE)
FMC_NWE high to FMC_ALE invalid 2T
fmc_ker_ck
− 1-
1. Guaranteed by characterization results.