Information

Electrical characteristics STM32F405xx, STM32F407xx
154/185 DocID022152 Rev 4
Figure 71. NAND controller waveforms for common memory read access
Figure 72. NAND controller waveforms for common memory write access
Table 85. Switching characteristics for NAND Flash read cycles
(1)
1. C
L
= 30 pF.
Symbol Parameter Min Max Unit
t
w(N0E)
FSMC_NOE low width
4T
HCLK
–
0.5
4T
HCLK
+ 3 ns
t
su(D-NOE)
FSMC_D[15-0] valid data before FSMC_NOE high 10 - ns
t
h(NOE-D)
FSMC_D[15-0] valid data after FSMC_NOE high 0 - ns
t
d(ALE-NOE)
FSMC_ALE valid before FSMC_NOE low - 3T
HCLK
ns
t
h(NOE-ALE)
FSMC_NWE high to FSMC_ALE invalid 3T
HCLK
– 2 - ns
FSMC_NWE
FSMC_N
OE
FSMC_D[15:0]
t
w(NOE)
t
su(D-NOE)
t
h(NOE-D)
ai14912c
ALE (FSMC_A17)
CLE (FSMC_A16)
FSMC_NCEx
t
d(ALE-NOE)
t
h(NOE-ALE)
t
w(NWE)
t
h(NWE-D)
t
v(NWE-D)
ai14913c
FSMC_NWE
FSMC_N
OE
FSMC_D[15:0]
t
d(D-NWE)
ALE (FSMC_A17)
CLE (FSMC_A16)
FSMC_NCEx
t
d(ALE-NOE)
t
h(NOE-ALE)