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參數(shù)資料
| 型號： | M4-256/128-7AC |
| 廠商： | LATTICE SEMICONDUCTOR CORP |
| 元件分類： | PLD |
| 英文描述： | High Performance E 2 CMOS In-System Programmable Logic |
| 中文描述： | EE PLD, 7.5 ns, PBGA256 |
| 封裝： | BGA-256 |
| 文件頁數(shù)： | 6/46頁 |
| 文件大小： | 773K |
| 代理商： | M4-256/128-7AC |
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14
MACH 4 Family
Output Switch Matrix
The output switch matrix allows macrocells to be connected to any of several I/O cells within a
PAL block. This provides high exibility in determining pinout and allows design changes to
occur without effecting pinout.
In MACH 4 devices with 2:1 Macrocell-I/O cell ratio, each PAL block has twice as many
macrocells as I/O cells. The MACH 4 output switch matrix allows for half of the macrocells to
drive I/O cells within a PAL block, in combinations according to Figure 9. Each I/O cell can
choose from eight macrocells; each macrocell has a choice of four I/O cells. The MACH 4 devices
with 1:1 Macrocell-I/O cell ratio allow each macrocell to drive one of eight I/O cells (Figure 9).
M0
M1
M2
M3
M4
M5
M6
M7
M8
M9
M10
M11
M12
M13
M14
M15
I/O0
I/O1
I/O2
I/O3
I/O4
I/O5
I/O6
I/O7
Each macrocell can drive
one of 4 I/O cells in
MACH 4 devices with
2:1 macrocell-I/O cell ratio.
Each I/O cell can
choose one of 8
macrocells in
all MACH 4
devices.
macrocells
MUX
I/O
cell
M0
M1
M2
M3
M4
M5
M6
M7
M8
M9
M10
M11
M12
M13
M14
M15
I/O0
I/O1
I/O2
I/O3
I/O4
I/O5
I/O6
I/O7
I/O8
I/O9
I/O10
I/O11
I/O12
I/O13
I/O14
I/O15
Each macrocell can drive
one of 8 I/O cells in
M4(LV)-32/32 devices.
Figure 9. MACH 4 Output Switch Matrix
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M4256-WHITE-1000 | 制造商:Alpha Wire 功能描述: |
| M4258 WH001 | 功能描述:同軸電纜 30AWG 1C SHIELD 1000ft SPOOL WHT RoHS:否 制造商:Murata RG 類型: 阻抗:50 Ohms 線規(guī) - 美國線規(guī)（AWG）: 導體材料: 絞合: 長度:300 mm 外殼材料: 外徑: 屏蔽: |
| M4258 WH002 | 功能描述:同軸電纜 30AWG 1C SHIELD 500ft SPOOL WHT RoHS:否 制造商:Murata RG 類型: 阻抗:50 Ohms 線規(guī) - 美國線規(guī)（AWG）: 導體材料: 絞合: 長度:300 mm 外殼材料: 外徑: 屏蔽: |
| M4258 WH005 | 功能描述:同軸電纜 30AWG 1C SHIELD 100ft SPOOL WHT RoHS:否 制造商:Murata RG 類型: 阻抗:50 Ohms 線規(guī) - 美國線規(guī)（AWG）: 導體材料: 絞合: 長度:300 mm 外殼材料: 外徑: 屏蔽: |
| M4258-WH001 | 制造商:Alpha Wire 功能描述: |
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