Item Symbol Min Max Unit<br />Input leakage current -10 10 μA<br />Input current 0.1 1.5 mA<br />Sink current TBD TBD TBD<br />RON + RSER 3.3 10 KΩ<br /> <br />Sink current = current into output port at low level output voltage<br />RON + RSER = total resistance seen at low level output voltage<br />These 2 information will allow the radio application to design the pull-up resistor required.<br />一个电路板对外通讯采用i2c接口,现在客户要求提供sink current和RON + RSER两个值,从字面上来说sink current是低电平输出时流入的电流即灌电流,ic提供的资料是2mA。RON + RSER字面意思是低电平输出时的总电阻,这个具体是什么呢?是上拉电阻么,如果是上拉电阻的话,又何必多此一举呢,直接提pull-up resistor 不就OK了,不明,请帮忙? |
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