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Escort the "heart" of digital circuit
Escort the "heart" of digital circuit
32.768KHZ晶振是款实时时钟晶振，它的作用是可以产生时序电路基准信号。而之所以选用32.768K是因为它是2的15次幂，是因为可以很[敏感词]的得到一秒的计时。不仅如此，包括所有的实时时钟晶振一般都是32.768或其倍频。贴片32.768K晶振的负载电容都是12.5PF。常用32.768K晶振的电子产品有智能手机、智能手表、安防和可穿戴设备等等。也还有很多生活类、工业类电子也会常用到这款频率的进口晶振。
| Image | Types of | Model | Package size | Frequency | Voltage/load | Frequency difference | Operating temperature | Sample Application | |
|---|---|---|---|---|---|---|---|---|---|
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SMD KHZ Crystal (2012) | H21 | 2.0x1.2x0.6mm | 32.768KHZ | 12.5PF or specif | ±10PPM or specif | -40℃~+85℃ or specif |  |
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SMD KHZ Crystal (3215) | H31 | 3.2x1.5x0.75mm | 32.768KHZ | 12.5PF or specif | ±20PPM or specif | -40℃~+85℃ or specif | |
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SMD KHZ Crystal (MC146) | G146 | 7.0x1.5mm | 32.768KHZ | 12.5PF or specif | ±10PPM or specif | -40℃~+85℃ or specif | |
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SMD KHZ Crystal (MC146) | MC146 | 7.0x1.5mm | 32.768KHZ | 12.5PF or specif | ±20PPM or specif | -40℃~+85℃ or specif | |
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SMD KHZ Crystal(Y206) | Y206 | 2.0x6.0mm | 32.768KHZ | 20PF or specif | ±20PPM or specif | -20℃~+70℃ | |
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SMD KHZ Crystal(Y308) | Y308 | 3.0x8.0mm | 32.768KHZ | 20PF or specif | ±20PPM or specif | -20℃~+70℃ or specif | |
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