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ManualsBrandsST ManualsEmbedded Processors & ControllersMicrocontroller 32bit 2MB TFBGA
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DocID029041 Rev 6 197/255
STM32F765xx STM32F767xx STM32F768Ax STM32F769xx Electrical characteristics
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Figure 65. Asynchronous multiplexed PSRAM/NOR write waveforms
Table 107. Asynchronous multiplexed PSRAM/NOR write timings
(1)
Symbol Parameter Min Max Unit
t
w(NE)
FMC_NE low time 4T
HCLK
− 14T
HCLK
+ 1
ns
t
v(NWE_NE)
FMC_NEx low to FMC_NWE low T
HCLK
− 1T
HCLK
+ 0.5
t
w(NWE)
FMC_NWE low time 2T
HCLK
− 0.5 2T
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
+ 2
t
h(Data_NWE)
Data hold time after FMC_NWE high T
HCLK
+ 0.5 -
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