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零件编号
产品描述 (功能)
8255A-5 查看數據表(PDF) - Intel
零件编号
产品描述 (功能)
比赛名单
8255A-5
CHMOS PROGRAMMABLE PERIPHERAL INTERFACE
Intel
8255A-5 Datasheet PDF : 23 Pages
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82C55A
231256 – 3
Figure 3 82C55A Block Diagram Showing Data Bus Buffer and Read Write Control Logic Functions
NOTE
231256 – 4
Port pins loaded with more than 20 pF capacitance may not have their logic level guaranteed following a hardware reset
Figure 4 Port A B C Bus-hold Configuration
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