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STM32H7B3AI Datasheet(PDF) 135 Page - STMicroelectronics

No. de pieza STM32H7B3AI
Descripción Electrónicos  32-bit Arm® Cortex®-M7 280 MHz MCUs, 2-Mbyte flash memory, 1.4-Mbyte RAM, 46 com. and analog interfaces, SMPS, crypto
PDF  238 Pages
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Fabricante Electrónico  STMICROELECTRONICS [STMicroelectronics]
Página de inicio  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STM32H7B3AI Datasheet(HTML) 135 Page - STMicroelectronics

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Symbol
Parameter
Min(1)
Max(1)(2)
Unit
td(CLKL-Data)
ns
FMC_D[15:0] valid data after FMC_CLK low
-
3
td(CLKL-NBLL)
FMC_CLK low to FMC_NBL low
-
2
td(CLKH-NBLH)
FMC_CLK high to FMC_NBL high
Tfmc_ker_ck + 0.5
-
tsu(NWAIT-CLKH)
FMC_NWAIT valid before FMC_CLK high
2
-
th(CLKH-NWAIT)
FMC_NWAIT valid after FMC_CLK high
2
-
1. Guaranteed by characterization results.
2. At VOS1, these values are degraded by up to 5 %.
NAND controller waveforms and timings
Figure 43 through Figure 46 represent synchronous waveforms, and Table 84 and Table 85 provide the
corresponding timings. The results shown in this table are obtained with the following FMC configuration:
•
COM.FMC_SetupTime = 0x01
•
COM.FMC_WaitSetupTime = 0x03
•
COM.FMC_HoldSetupTime = 0x02
•
COM.FMC_HiZSetupTime = 0x01
•
ATT.FMC_SetupTime = 0x01
•
ATT.FMC_WaitSetupTime = 0x03
•
ATT.FMC_HoldSetupTime = 0x02
•
ATT.FMC_HiZSetupTime = 0x01
•
Bank = FMC_Bank_NAND
•
MemoryDataWidth = FMC_MemoryDataWidth_16b
•
ECC = FMC_ECC_Enable
•
ECCPageSize = FMC_ECCPageSize_512Bytes
•
TCLRSetupTime = 0
•
TARSetupTime = 0
•
Capacitive load CL = 30 pF
In all timing tables, Tfmc_ker_ck is the kernel clock period.
Figure 43. NAND controller waveforms for read access
FMC_NWE
FMC_NOE (NRE)
FMC_D[15:0]
tsu(D-NOE)
th(NOE-D)
ALE (FMC_A17)
CLE (FMC_A16)
FMC_NCEx
td(ALE-NOE)
th(NOE-ALE)
STM32H7B3xI
Operating conditions
DS13139 - Rev 8
page 135/238



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