| 序号 | 型号 | 描述 | 大小 | 厂家Logo | 下载 |
|---|
| 1 | HEF4521BT | Asynchronous Up Counter | 192K |
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| 2 | HEF4521BT | 24-stage frequency divider and oscillator | 164K |
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| 3 | HEF4521BT | 24-stage frequency divider and oscillator | 166K |
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| 4 | HEF4521BT | 24-stage frequency divider and oscillator | 116K |
|
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| 5 | HEF4521BTD | Asynchronous Up Counter | 192K |
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| 6 | HEF4521BTD-T | Asynchronous Up Counter | 192K |
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