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SP3220ECA-L/TR +3.0V to +5.5V RS-232 Driver/Receiver Pair10+SIPEXTSSOP 删除
SP3083EEN-L/TR Advanced-Failsafe RS-485/RS-422 Transceivers 1/8th Unit Load, Slew-Rate Limited, 【15kV ESD-Protected10+SIPEXSOP-14 删除

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