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STM32H745II Datasheet(PDF) 177 Page - STMicroelectronics

Part # STM32H745II
Description  Dual 32-bit Arm® Cortex®-M7 up to 480MHz and -M4 MCUs,up to 2MB Flash, 1MB RAM, 46 com. and analog interfaces, SMPS
PDF  252 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STM32H745II Datasheet(HTML) 177 Page - STMicroelectronics

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DS12923 Rev 1
177/252
STM32H745xI/G
Electrical characteristics
228
Figure 37. NAND controller waveforms for common memory write access
Table 87. Switching characteristics for NAND Flash read cycles(1)
1. Guaranteed by characterization results.
Symbol
Parameter
Min
Max
Unit
tw(N0E)
FMC_NOE low width
4Tfmc_ker_ck – 0.5
4Tfmc_ker_ck+0.5
ns
tsu(D-NOE)
FMC_D[15-0] valid data before
FMC_NOE high
8-
th(NOE-D)
FMC_D[15-0] valid data after
FMC_NOE high
0-
td(ALE-NOE) FMC_ALE valid before FMC_NOE low
-
3Tfmc_ker_ck +1
th(NOE-ALE) FMC_NWE high to FMC_ALE invalid
4Tfmc_ker_ck –2
-
Table 88. Switching characteristics for NAND Flash write cycles(1)
1. Guaranteed by characterization results.
Symbol
Parameter
Min
Max
Unit
tw(NWE)
FMC_NWE low width
4Tfmc_ker_ck – 0.5
4Tfmc_ker_ck +0.5
ns
tv(NWE-D)
FMC_NWE low to FMC_D[15-0]
valid
0-
th(NWE-D)
FMC_NWE high to FMC_D[15-0]
invalid
2Tfmc_ker_ck – 0.5
-
td(D-NWE)
FMC_D[15-0] valid before
FMC_NWE high
5Tfmc_ker_ck – 1
-
td(ALE-NWE)
FMC_ALE valid before FMC_NWE
low
-3Tfmc_ker_ck +0.5
th(NWE-ALE)
FMC_NWE high to FMC_ALE
invalid
2Tfmc_ker_ck – 1
-
MS32770V1
tw(NWE)
th(NWE-D)
tv(NWE-D)
FMC_NWE
FMC_N OE
FMC_D[15:0]
td(D-NWE)
ALE (FMC_A17)
CLE (FMC_A16)
FMC_NCEx
td(ALE-NOE)
th(NOE-ALE)



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