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STM32H757AI 数据表(PDF) 166 Page - STMicroelectronics

部件名 STM32H757AI
功能描述  Dual 32-bit Arm® Cortex®-M7 up to 480MHz and -M4 MCUs, 2MB Flash, 1MB RAM, 46 com. and analog interfaces, SMPS, DSI, crypto
PDF  251 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

STM32H757AI 数据表(HTML) 166 Page - STMicroelectronics

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Electrical characteristics
STM32H757xI
166/251
DS12931 Rev 1
Table 80. Asynchronous non-multiplexed SRAM/PSRAM/NOR write timings(1)
1. Guaranteed by characterization results.
Symbol
Parameter
Min
Max
Unit
tw(NE)
FMC_NE low time
3Tfmc_ker_ck –1
3Tfmc_ker_ck
ns
tv(NWE_NE)
FMC_NEx low to FMC_NWE low
Tfmc_ker_ck
Tfmc_ker_ck+1
tw(NWE)
FMC_NWE low time
Tfmc_ker_ck –0.5
Tfmc_ker_ck+0.5
th(NE_NWE)
FMC_NWE high to FMC_NE high
hold time
Tfmc_ker_ck
-
tv(A_NE)
FMC_NEx low to FMC_A valid
-
2
th(A_NWE)
Address hold time after FMC_NWE
high
Tfmc_ker_ck –0.5
-
tv(BL_NE)
FMC_NEx low to FMC_BL valid
-
0.5
th(BL_NWE)
FMC_BL hold time after FMC_NWE
high
Tfmc_ker_ck –0.5
-
tv(Data_NE)
Data to FMC_NEx low to Data valid
-
Tfmc_ker_ck+ 2.5
th(Data_NWE) Data hold time after FMC_NWE high
Tfmc_ker_ck+0.5
-
tv(NADV_NE)
FMC_NEx low to FMC_NADV low
-
0
tw(NADV)
FMC_NADV low time
-
Tfmc_ker_ck+ 1
Table 81. Asynchronous non-multiplexed SRAM/PSRAM/NOR write-NWAIT
timings(1)(2)
1. Guaranteed by characterization results.
2. NWAIT pulse width is equal to 1 AHB cycle.
Symbol
Parameter
Min
Max
Unit
tw(NE)
FMC_NE low time
8Tfmc_ker_ck –1
8Tfmc_ker_ck+1
ns
tw(NWE)
FMC_NWE low time
6Tfmc_ker_ck –1.5
6Tfmc_ker_ck+0.5
tsu(NWAIT_NE)
FMC_NWAIT valid before FMC_NEx
high
5Tfmc_ker_ck+13
-
th(NE_NWAIT)
FMC_NEx hold time after
FMC_NWAIT invalid
4Tfmc_ker_ck+13
-



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