Datasheet

Electrical characteristics STM32F427xx STM32F429xx
170/239 DocID024030 Rev 10
Figure 55. Asynchronous non-multiplexed SRAM/PSRAM/NOR read waveforms
1. Mode 2/B, C and D only. In Mode 1, FMC_NADV is not used.
Table 86. Asynchronous non-multiplexed SRAM/PSRAM/NOR -
read timings
(1)(2)
Symbol Parameter Min Max Unit
t
w(NE)
FMC_NE low time 2T
HCLK
− 0.5 2 T
HCLK
+0.5 ns
t
v(NOE_NE)
FMC_NEx low to FMC_NOE low 0 1 ns
t
w(NOE)
FMC_NOE low time 2T
HCLK
2T
HCLK
+ 0.5 ns
t
h(NE_NOE)
FMC_NOE high to FMC_NE high hold time 0 - ns
t
v(A_NE)
FMC_NEx low to FMC_A valid - 2 ns
t
h(A_NOE)
Address hold time after FMC_NOE high 0 - ns
t
v(BL_NE)
FMC_NEx low to FMC_BL valid - 2 ns
t
h(BL_NOE)
FMC_BL hold time after FMC_NOE high 0 - ns
t
su(Data_NE)
Data to FMC_NEx high setup time T
HCLK
+ 2.5 - ns
t
su(Data_NOE)
Data to FMC_NOEx high setup time T
HCLK
+2 - ns
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