铁电存储器(FRAM)
SI和SO都接在了主控MCU同一个IO口上面  怎么回事？SPI和IIC不都是SCK、DIO、VCC、GND  四根线通讯吗？怎么要接那么多脚到MCU的I
https://atta.szlcsc.com/upload/public/pdf/source/20150407/1457707272442.pdf
铁电存储器.png