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「PCB高手笔记」DDR模块设计避坑指南,一文搞懂关键布局走线要点!
RK3588 DDR 控制器接口支持 JEDEC SDRAM 标准接口,原理电路16位数据信号如图8-1所示,地址、控制信号如图8-2所示,电源信号如图8-3所示。电路控制器有如下特点: 6、内置 Retention 功能,DDR 进入自刷新期间,DDR 控制器端 DDR_CH_VDDQ_CKE 的电源脚需要保持供电,其它电源 ...
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