描述:Metal Film Resistors - Through Hole Product Attribute:Attribute Value Manufacturer:TT Electronics Product Category:Metal Film Resistors - Through Hole
昨天看了一下电路图,发现内存(SDRAM)和2440接口有点不可思议,后来仔细对比。发现问题在LDQM,UDQM这两个引脚,他们接到2440的四个nWBE引脚。内存资料是这么说的:Data Input/Output Mask Controls output buffers in read mode and masks input data in write mode 一些中文文档是这么说的:在读模
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