參數(shù)資料
型號(hào): MPC8245TZU333D
廠商: MOTOROLA INC
元件分類: 微控制器/微處理器
英文描述: 32-BIT, 333 MHz, RISC PROCESSOR, PBGA352
封裝: 35 X 35 MM, 1.70 MM HEIGHT, 1.27 MM PITCH, CAVITY-UP, TBGA-352
文件頁數(shù): 7/60頁
文件大?。?/td> 674K
代理商: MPC8245TZU333D
MOTOROLA
MPC8245 Integrated Processor Hardware Specications
15
Electrical and Thermal Characteristics
increased time makes it easier to guarantee that the reference clock will be within the DLL lock range, it
also means there may be slightly more jitter in the output clock of the DLL, should the phase comparator
shift the clock between adjacent tap points. Refer to Motorola Application Note AN2164,
MPC8245/MPC8241 Memory Clock Design Guidelines, for more details on memory design.
Figure 5. DLL Locking Range Loop Delay vs. Frequency of Operation for DLL_Extend=1
and Normal Tap Delay
10
15
20
25
12.5
17.5
22.5
27.5
01234
30
7.5
Tloop Propagation Delay Time (ns)
T
clk
SDRAM_SYNC_OUT
P
e
riod
(ns)
N = 1
N = 2
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