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Electrical characteristics STM32L476xx
224/270 DS10198 Rev 8
Figure 46. Asynchronous non-multiplexed SRAM/PSRAM/NOR write waveforms
Table 107. Asynchronous non-multiplexed SRAM/PSRAM/NOR write timings
(1)(2)
1. CL = 30 pF.
2. Guaranteed by characterization results.
Symbol Parameter Min Max Unit
t
w(NE)
FMC_NE low time 3T
HCLK
-1 3T
HCLK
+2
ns
t
v(NWE_NE)
FMC_NEx low to FMC_NWE low T
HCLK
-0.5 T
HCLK
+1.5
t
w(NWE)
FMC_NWE low time T
HCLK
-1 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
-1 -
t
v(BL_NE)
FMC_NEx low to FMC_BL valid - 1.5
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
+4
t
h(Data_NWE)
Data hold time after FMC_NWE high T
HCLK
+1 -
t
v(NADV_NE)
FMC_NEx low to FMC_NADV low - 1
t
w(NADV)
FMC_NADV low time - T
HCLK
+0.5
NBL
Data
FMC_NEx
FMC_NBL[1:0]
FMC_D[15:0]
t
v(BL_NE)
t
h(Data_NWE)
FMC_NOE
Address
FMC_A[25:0]
t
v(A_NE)
t
w(NWE)
FMC_NWE
t
v(NWE_NE)
t
h(NE_NWE)
th(A_NWE)
t
h(BL_NWE)
t
v(Data_NE)
t
w(NE)
MS32754V1
FMC_NADV
(1)
t
v(NADV_NE)
t
w(NADV)
FMC_NWAIT
tsu(NWAIT_NE)
th(NE_NWAIT)
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