參數(shù)資料
型號(hào)： MSC8144E
廠商： FREESCALE SEMICONDUCTOR INC
元件分類： 數(shù)字信號(hào)處理
英文描述： 0-BIT, 150 MHz, OTHER DSP, PBGA783
封裝： 29 X 29 MM, LEAD FREE, PLASTIC, FCPBGA-783
文件頁(yè)數(shù)： 57/80頁(yè)
文件大小： 2284K
代理商： MSC8144E
MSC8144E Quad Core Digital Signal Processor Data Sheet, Rev. 0
Freescale Semiconductor
60
2.7.11
ATM/UTOPIA Timing
Table 52 provides the UTOPIA input and output AC timing specifications.
Figure 33 provides the AC test load for the UTOPIA.
Figure 34 shows the UTOPIA timing with external clock.
Table 52. UTOPIA AC Timing Specifications
Characteristic
Symbol
Min
Max
Unit
UTOPIA outputs—External clock delay
tUEKHOV
19
ns
UTOPIA outputs—External clock High Impedance
tUEKHOX
19
ns
UTOPIA inputs—External clock input setup time
tUEIVKH
4ns
UTOPIA inputs—External clock input hold time
tUEIXKH
1ns
Note:
Output specifications are measured from the 50% level of the rising edge of CLKIN to the 50% level of the signal. Timings are
measured at the pin. Although the specifications generally reference the rising edge of the clock, these AC timing diagrams also
apply when the falling edge is the active edge.
Figure 33. UTOPIA AC Test Load
Figure 34. UTOPIA AC Timing (External Clock)
Output
Z0 = 50 Ω
VDD/2
RL = 50 Ω
UTOPIA CLK (input)
tUEIXKH
tUEIVKH
tUEKHOV
Input Signals:
UTOPIA
Output Signals:
UTOPIA
tUEKHOX
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MSC8144EC 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Quad Core Digital Signal Processor
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