| 序号 | 型号 | 描述 | 大小 | 厂家Logo | 下载 |
|---|
| 1 | HD74HC4520 | Dual BCD Use Converters/Dual Binary Up Converters | 60K |
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| 2 | HD74HC4520 | Dual BCD Up Counters | 118K |
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| 3 | HD74HC4520FPEL | Dual BCD Up Counters | 118K |
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| 4 | HD74HC4520P | Dual BCD Up Counters | 118K |
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| 5 | HD74HC4520RPEL | Dual BCD Up Counters | 118K |
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