PLCC-44 封装尺寸图P-44A
PLCC-44 封装尺寸图P-44A...
PLCC-44 封装尺寸图P-44A...
SDRAM的原理和时序 SDRAM内存模组与基本结构 我们平时看到的SDRAM都是以模组形式出现,为什么要做成这种形式呢?这首先要接触到两个概念:物理Bank与芯片位宽。1、 物理Bank 传统内存系统为了保证CPU的正常工作,必须一次传输完CPU在一个传输周期内所需要的数据。而CPU在一个传输周期...
The PCA9546A is a quad bidirectional translating switch controlled via the I2C-bus. TheSCL/SDA upstream pair fans out to four downstream pairs, or cha...
The PCA9547 is an octal bidirectional translating multiplexer controlled by the I2C-bus.The SCL/SDA upstream pair fans out to eight downstream pairs, ...
The PCA9548A is an octal bidirectional translating switch controlled via the I2C-bus. TheSCL/SDA upstream pair fans out to eight downstream pairs, or ...