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STM32F427AI 数据表(PDF) 172 Page - STMicroelectronics

部件名 STM32F427AI
功能描述  32b Arm® Cortex®-M4 MCUFPU, 225DMIPS, up to 2MB Flash/2564KB RAM, USB OTG HS/FS, Ethernet, 17 TIMs, 3 ADCs, 20 com. interfaces, camera & LCD-TFT
PDF  240 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

STM32F427AI 数据表(HTML) 172 Page - STMicroelectronics

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Electrical characteristics
STM32F427xx STM32F429xx
172/240
DS9405 Rev 12
Figure 56. 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 89. Asynchronous non-multiplexed SRAM/PSRAM/NOR write timings(1)(2)
1. CL = 30 pF.
2. Evaluated by characterization.
Symbol
Parameter
Min
Max
Unit
tw(NE)
FMC_NE low time
3THCLK
3THCLK+1
ns
tv(NWE_NE)
FMC_NEx low to FMC_NWE low
THCLK − 0.5
THCLK+ 0.5
ns
tw(NWE)
FMC_NWE low time
THCLK
THCLK+ 0.5
ns
th(NE_NWE)
FMC_NWE high to FMC_NE high hold time
THCLK +1.5
-
ns
tv(A_NE)
FMC_NEx low to FMC_A valid
-
0
ns
th(A_NWE)
Address hold time after FMC_NWE high
THCLK+0.5
-
ns
tv(BL_NE)
FMC_NEx low to FMC_BL valid
-
1.5
ns
th(BL_NWE)
FMC_BL hold time after FMC_NWE high
THCLK+0.5
-
ns
tv(Data_NE)
Data to FMC_NEx low to Data valid
-
THCLK+ 2
ns
th(Data_NWE)
Data hold time after FMC_NWE high
THCLK+0.5
-
ns
tv(NADV_NE)
FMC_NEx low to FMC_NADV low
-
0.5
ns
tw(NADV)
FMC_NADV low time
-
THCLK+ 0.5
ns
NBL
Data
FMC_NEx
FMC_NBL[1:0]
FMC_D[15:0]
tv(BL_NE)
th(Data_NWE)
FMC_NOE
Address
FMC_A[25:0]
tv(A_NE)
tw(NWE)
FMC_NWE
tv(NWE_NE)
t h(NE_NWE)
th(A_NWE)
th(BL_NWE)
tv(Data_NE)
tw(NE)
MS32754V1
FMC_NADV (1)
t v(NADV_NE)
tw(NADV)
FMC_NWAIT
tsu(NWAIT_NE)
th(NE_NWAIT)



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