Datasheet

Electrical characteristics STM32F446xC/E
156/202 DocID027107 Rev 6
Figure 52. Asynchronous multiplexed PSRAM/NOR read waveforms
Table 89. Asynchronous non-multiplexed SRAM/PSRAM/NOR write -
NWAIT timings
(1)(2)
1. C
L
= 30 pF.
2. Guaranteed based on test during characterization.
Symbol Parameter Min Max Unit
t
w(NE)
FMC_NE low time 8T
HCLK
- 0.5 8T
HCLK
+ 1
ns
t
w(NWE)
FMC_NWE low time 6T
HCLK
- 0.5 6T
HCLK
+ 1
t
su(NWAIT_NE)
FMC_NWAIT valid before FMC_NEx high 6T
HCLK
- 0.5 -
t
h(NE_NWAIT)
FMC_NEx hold time after FMC_NWAIT
invalid
4T
HCLK
+ 2 -
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