Datasheet

DocID022152 Rev 8 157/202
STM32F405xx, STM32F407xx Electrical characteristics
Figure 67. PC Card/CompactFlash controller waveforms for I/O space write access
W
G1&(B1,2:5
W
Z1,2:5
W
Y1&([$
W
K1&(B$,
W
K1,2:5'
$77[+,= 
W
Y1,2:5'
DLF
)60&B1:(
)60&B12(
)60&B'>@
)60&B$>@
)60&B1&(B
)60&B1&(B
)60&B15(*
)60&B1,2:5
)60&B1,25'
Table 83. Switching characteristics for PC Card/CF read and write cycles
in attribute/common space
(1)(2)
Symbol Parameter Min Max Unit
t
v(NCEx-A)
FSMC_Ncex low to FSMC_Ay valid - 0 ns
t
h(NCEx_AI)
FSMC_NCEx high to FSMC_Ax invalid 4 - ns
t
d(NREG-NCEx)
FSMC_NCEx low to FSMC_NREG valid - 3.5 ns
t
h(NCEx-NREG)
FSMC_NCEx high to FSMC_NREG invalid T
HCLK
+4 - ns
t
d(NCEx-NWE)
FSMC_NCEx low to FSMC_NWE low - 5T
HCLK
+0.5 ns
t
d(NCEx-NOE)
FSMC_NCEx low to FSMC_NOE low - 5T
HCLK
+0.5 ns
t
w(NOE)
FSMC_NOE low width 8T
HCLK
–1 8T
HCLK
+1 ns
t
d(NOE_NCEx)
FSMC_NOE high to FSMC_NCEx high 5T
HCLK
+2.5 - ns
t
su (D-NOE)
FSMC_D[15:0] valid data before FSMC_NOE high 4.5 - ns
t
h(N0E-D)
FSMC_N0E high to FSMC_D[15:0] invalid 3 - ns
t
w(NWE)
FSMC_NWE low width 8T
HCLK
–0.5 8T
HCLK
+ 3 ns
t
d(NWE_NCEx)
FSMC_NWE high to FSMC_NCEx high
5T
HCLK
–1
-ns
t
d(NCEx-NWE)
FSMC_NCEx low to FSMC_NWE low - 5T
HCLK
+ 1 ns
t
v(NWE-D)
FSMC_NWE low to FSMC_D[15:0] valid - 0 ns
t
h
(NWE-D) FSMC_NWE high to FSMC_D[15:0] invalid 8T
HCLK
–1 - ns
t
d
(D-NWE) FSMC_D[15:0] valid before FSMC_NWE high 13T
HCLK
–1 - ns
1. C
L
= 30 pF.
2. Guaranteed by characterization.