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參數(shù)資料
| 型號(hào)： | 34C60 |
| 廠商： | SMSC Corporation |
| 英文描述： | PARALLEL PORT INTERFACE CHIP PERIPHERAL SIDE |
| 中文描述： | 并行接口芯片外設(shè)端 |
| 文件頁(yè)數(shù)： | 27/58頁(yè) |
| 文件大?。?/td> | 350K |
| 代理商： | 34C60 |
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SMSC DS – PPC34C60
Page 33
Rev. 06/01/2001
ADVANCED INFORMATION
SUGGESTED OSCILLATOR CIRCUITS
The PPC34C60 requires two frequency sources. The 24MHz clock is supplied with a parallel resonant 24MHz crystal
oscillator connected as shown in FIGURE 9. It is important that the board designer place the crystal oscillator close to the
PPC34C60 maintaining the shortest possible traces. The 24MHz clock is used by much of the internal circuitry and
provides the time base used by the Bus Interface circuitry.
The second clock source is provided by an RC circuit and should be connected as shown in FIGURE 10. This clock is
used primarily by the Watch Dog Timer and Piezo Driver functional blocks.
PPC34C60
Xin
Xout
24MHz Crystal
20 pF
FIGURE 9 - SUGGESTED 24 MHZ OSCILLATOR CIRCUIT
FIGURE 10 - SUGGESTED 32 KHZ OSCILLATOR CIRCUIT
PPC34C60
Yin
Yout
R
2.2 K
100
.068 uF
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相關(guān)代理商/技術(shù)參數(shù) |
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| 34C7564 | 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:PLCC 68 BREAKOUT ADAPTER BRD |
| 34C7565 | 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:PLCC 84 BREAKOUT ADAPTER BRD |
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