Datasheet

DS11585 Rev 9 229/272
STM32L496xx Electrical characteristics
243
Figure 49. Asynchronous multiplexed PSRAM/NOR write waveforms
Table 111. Asynchronous multiplexed PSRAM/NOR write timings
(1)(2)
Symbol Parameter Min Max Unit
t
w(NE)
FMC_NE low time 4T
HCLK
-1 4T
HCLK
+1
ns
t
v(NWE_NE)
FMC_NEx low to FMC_NWE low T
HCLK
-1 T
HCLK
+1
t
w(NWE)
FMC_NWE low time 2xT
HCLK
-0.5 2xT
HCLK
+ 0.5
t
h(NE_NWE)
FMC_NWE high to FMC_NE high hold time T
HCLK
-0.5 -
t
v(A_NE)
FMC_NEx low to FMC_A valid - 0
t
v(NADV_NE)
FMC_NEx low to FMC_NADV low 0 0.5
t
w(NADV)
FMC_NADV low time T
HCLK
T
HCLK
+1
t
h(AD_NADV)
FMC_AD(adress) valid hold time after
FMC_NADV high
T
HCLK
+ 0.5 -
t
h(A_NWE)
Address hold time after FMC_NWE high T
HCLK
+ 0.5 -
t
h(BL_NWE)
FMC_BL hold time after FMC_NWE high T
HCLK
- 0.5 -
t
v(BL_NE)
FMC_NEx low to FMC_BL valid - 0.5
t
v(Data_NADV)
FMC_NADV high to Data valid - T
HCLK
+3
t
h(Data_NWE)
Data hold time after FMC_NWE high T
HCLK
+0.5 -
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