| 序号 | 型号 | 描述 | 大小 | 厂家Logo | 下载 |
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| 1 | PCA8574A | Remote 8-bit I/O expander for I2C-bus with interrupt | 163K |
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| 2 | PCA8574AD | Remote 8-bit I/O expander for I2C-bus with interrupt | 163K |
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| 3 | PCA8574AN | Remote 8-bit I/O expander for I2C-bus with interrupt | 163K |
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| 4 | PCA8574APW | Remote 8-bit I/O expander for I2C-bus with interrupt | 163K |
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| 5 | PCA8574ATS | Remote 8-bit I/O expander for I2C-bus with interrupt | 163K |
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