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图片 型号 价格 数量 库存 制造商 描述 Package / Case Series Packaging Logic Type Mounting Type Number of Elements Operating Temperature Part Status Voltage - Supply Supplier Device Package Number of Bits per Element Direction Reset Count Rate Trigger Type
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ON Semiconductor IC COUNTER BINARY 4BIT 20-DIP 20-DIP (0.300", 7.62mm) 74F Tube - Through Hole 1 0°C ~ 70°C Obsolete 4.5V ~ 5.5V 20-PDIP 4 Up, Down Asynchronous/Synchronous 90MHz Positive Edge