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ManualsBrandsST ManualsEmbedded Processors & ControllersMicrocontroller 32bit 1MB LQFP
171172173174175176177178179180
Electrical characteristics STM32F745xx STM32F746xx
172/227 DocID027590 Rev 4
Figure 59. Asynchronous non-multiplexed SRAM/PSRAM/NOR write waveforms
1. Mode 2/B, C and D only. In Mode 1, FMC_NADV is not used.
Table 90. Asynchronous non-multiplexed SRAM/PSRAM/NOR write timings
(1)
1. Guaranteed by characterization results.
Symbol Parameter Min Max Unit
t
w(NE)
FMC_NE low time 3T
HCLK
−0.5 3T
HCLK
+1.5
ns
t
v(NWE_NE)
FMC_NEx low to FMC_NWE low T
HCLK
−0.5 T
HCLK
+ 1
t
w(NWE)
FMC_NWE low time T
HCLK
−0.5 T
HCLK
+ 1
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
h(A_NWE)
Address hold time after FMC_NWE high T
HCLK
−0.5 -
t
v(BL_NE)
FMC_NEx low to FMC_BL valid - 0
t
h(BL_NWE)
FMC_BL hold time after FMC_NWE high T
HCLK
−0.5 -
t
v(Data_NE)
Data to FMC_NEx low to Data valid - T
HCLK
+ 3
t
h(Data_NWE)
Data hold time after FMC_NWE high T
HCLK
+0.5 -
t
v(NADV_NE)
FMC_NEx low to FMC_NADV low - 0
t
w(NADV)
FMC_NADV low time - T
HCLK
+ 0.5
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