參數(shù)資料
型號: ST40RA150XH6
廠商: STMICROELECTRONICS
元件分類: 微控制器/微處理器
英文描述: 32-BIT, 150 MHz, RISC PROCESSOR, PBGA372
封裝: 27 X 27 MM, BGA-372
文件頁數(shù): 43/90頁
文件大小: 672K
代理商: ST40RA150XH6
48/88
ST40RA166
6 Electrical specifications
6.4
LMI interface (SDRAM) AC specifications
Figure 11: LMI SDRAM mode timings
Symbol
Parameter
Min
Max
Units
Note
tLCHLCH
LMI clock period
10
ns
tLCHLCL
LMI clock high time
0.45
tLCHLCH
tLCLLCH
LMI clock low period
0.45
tLCHLCH
tLCHLOV
LCLKOUT
low to output signals valid
-1.5
0.5
ns
tLCHLOZ
LCLKOUT
high to outputs tri-state
0
2
ns
tLCHLON
LCLKOUT
high to outputs on
-2
ns
tLIVLCH
Input signals valid to LCLKOUT high
1
ns
tLCHLIX
Input signals hold after LCLKOUT high
2
ns
Table 25: LMI SDRAM AC timings
Tri-state outputs
LCLKOUTA
Outputs
tLCLLOV
tLCHLON
tLCHLOZ
Inputs
tLCHLIX
tLIVLCH
tLCHLCH
tLCHLCL
tLCLLCH
LCLKOUTB
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