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序号 型号 描述 大小 厂家Logo 下载
1 ST490ABD LOW POWER HIGH SPEED RS-485/RS-422 TRANSCEIVER 208K ST 4493878
2 ST490ABDR LOW POWER HIGH SPEED RS-485/RS-422 TRANSCEIVER 208K ST 4493877
3 ST490ABDR Low power high speed RS-485/RS-422 transceiver 215K ST 2979516
4 ST490ABDR Low power high speed RS-485/RS-422 transceiver 702K ST 2979515