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STM32H747AI датащи(PDF) 183 Page - STMicroelectronics

номер детали STM32H747AI
подробное описание детали  Dual 32-bit Arm® Cortex®-M7 up to 480MHz and -M4 MCUs, up to 2MB Flash, 1MB RAM, 46 com. and analog interfaces, SMPS, DSI
PDF  252 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
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STM32H747AI датащи(HTML) 183 Page - STMicroelectronics

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DS12930 Rev 1
173/242
STM32H747xI/G
Electrical characteristics
221
Table 91. SDRAM read timings(1)
1. Guaranteed by characterization results.
Symbol
Parameter
Min
Max
Unit
tw(SDCLK)
FMC_SDCLK period
2Tfmc_ker_ck – 1
2Tfmc_ker_ck
+0.5
ns
tsu(SDCLKH _Data)
Data input setup time
2
-
th(SDCLKH_Data)
Data input hold time
1
-
td(SDCLKL_Add)
Address valid time
-
1.5
td(SDCLKL- SDNE)
Chip select valid time
-
1.5
th(SDCLKL_SDNE)
Chip select hold time
0.5
-
td(SDCLKL_SDNRAS)
SDNRAS valid time
-
1
th(SDCLKL_SDNRAS)
SDNRAS hold time
0.5
-
td(SDCLKL_SDNCAS)
SDNCAS valid time
-
0.5
th(SDCLKL_SDNCAS)
SDNCAS hold time
0
-
Table 92. LPSDR SDRAM read timings(1)
1. Guaranteed by characterization results.
Symbol
Parameter
Min
Max
Unit
tW(SDCLK)
FMC_SDCLK period
2Tfmc_ker_ck – 1 2Tfmc_ker_ck+0.5
ns
tsu(SDCLKH_Data)
Data input setup time
2
-
th(SDCLKH_Data)
Data input hold time
1.5
-
td(SDCLKL_Add)
Address valid time
-
2.5
td(SDCLKL_SDNE)
Chip select valid time
-
2.5
th(SDCLKL_SDNE)
Chip select hold time
0
-
td(SDCLKL_SDNRAS
SDNRAS valid time
-
0.5
th(SDCLKL_SDNRAS)
SDNRAS hold time
0
-
td(SDCLKL_SDNCAS)
SDNCAS valid time
-
1.5
th(SDCLKL_SDNCAS)
SDNCAS hold time
0
-



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