| 序号 | 型号 | 描述 | 大小 | 厂家Logo | 下载 |
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| 1 | Z8420B | Z80 PIO PARALLEL INPUT/OUTPUT CONTROLLER | 906K |
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| 2 | Z8420B1 | Z80 PIO PARALLEL INPUT/OUTPUT CONTROLLER | 906K |
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| 3 | Z8420BB1 | Z80 PIO PARALLEL INPUT/OUTPUT CONTROLLER | 906K |
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| 4 | Z8420BC1 | Z80 PIO PARALLEL INPUT/OUTPUT CONTROLLER | 906K |
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| 5 | Z8420BD1 | Z80 PIO PARALLEL INPUT/OUTPUT CONTROLLER | 906K |
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| 6 | Z8420BD2 | Z80 PIO PARALLEL INPUT/OUTPUT CONTROLLER | 906K |
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| 7 | Z8420BD6 | Z80 PIO PARALLEL INPUT/OUTPUT CONTROLLER | 906K |
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| 8 | Z8420BF1 | Z80 PIO PARALLEL INPUT/OUTPUT CONTROLLER | 906K |
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