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參數(shù)資料
| 型號(hào)： | LFEC1E-3F900I |
| 廠(chǎng)商： | Lattice Semiconductor Corporation |
| 英文描述： | CONN HEADER EH SIDE 9POS 2.5MM |
| 中文描述： | LatticeECP / EC的系列數(shù)據(jù)手冊(cè) |
| 文件頁(yè)數(shù)： | 12/117頁(yè) |
| 文件大小： | 557K |
| 代理商： | LFEC1E-3F900I |
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2-9
Architecture
Lattice Semiconductor
LatticeECP/EC Family Data Sheet
Figure 2-8. Per Quadrant Primary Clock Selection
Figure 2-9. Per Quadrant Secondary Clock Selection
Figure 2-10. Slice Clock Selection
sysCLOCK Phase Locked Loops (PLLs)
The PLL clock input, from pin or routing, feeds into an input clock divider. There are three sources of feedback sig-
nal to the feedback divider: from the CLKOP, from the clock net, or from an external pin. There is a PLL_LOCK sig-
nal to indicate that VCO has locked on to the input clock signal. Figure 2-11 shows the sysCLOCK PLL diagram.
The setup and hold times of the device can be improved by programming a delay in the feedback or input path of
the PLL which will advance or delay the output clock with reference to the input clock. This delay can be either pro-
grammed during con
fi
guration or can be adjusted dynamically. In dynamic mode, the PLL may lose lock after
4 Primary Clocks (CLK0, CLK1, CLK2, CLK3) per Quadrant
20 Primary Clock Sources: 12 PLLs + 4 PIOs + 4 Routing
1
DCS
DCS
1. Smaller devices have fewer PLL related lines.
4 Secondary Clocks per Quadrant
20 Secondary Clock Feedlines : 4 Clock Input Pads + 16 Routing Signals
Primary Clock
Secondary Clock
Routing
Clock to Slice
GND
4
3
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LFEC1E-3T100C | LatticeECP/EC Family Data Sheet |
| LFEC1E-3T100I | LatticeECP/EC Family Data Sheet |
| LFEC1E-3T144C | LatticeECP/EC Family Data Sheet |
| LFEC1E-3T144I | LatticeECP/EC Family Data Sheet |
| LFEC1E-4F256C | LatticeECP/EC Family Data Sheet |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LFEC1E-3FN256C | 制造商:LATTICE 制造商全稱(chēng):Lattice Semiconductor 功能描述:LatticeECP/EC Family Data Sheet |
| LFEC1E-3FN256I | 制造商:LATTICE 制造商全稱(chēng):Lattice Semiconductor 功能描述:LatticeECP/EC Family Data Sheet |
| LFEC1E-3FN484C | 制造商:LATTICE 制造商全稱(chēng):Lattice Semiconductor 功能描述:LatticeECP/EC Family Data Sheet |
| LFEC1E-3FN484I | 制造商:LATTICE 制造商全稱(chēng):Lattice Semiconductor 功能描述:LatticeECP/EC Family Data Sheet |
| LFEC1E-3FN672C | 制造商:LATTICE 制造商全稱(chēng):Lattice Semiconductor 功能描述:LatticeECP/EC Family Data Sheet |
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