哪位大侠知道DDR4中VPP是干嘛的？

kobeismygod

看到DDR4多了一个VPP的电压，说是字位电压，看起来DDR3应该也需要这个电压，现在DDR4把它单拉出来有啥好处？
/ n5 b& R$ Z- V" t# o

超級狗

節錄自 EE Times︰
The DRAM word line requires higher voltages to activate the access transistor, ensuring fast access during the on state and ultra-low leakage during the off-state. The availability of the 2.5V VPP means that the word line voltage does not have to be inefficiently supplied (pumped up) from the 1.2V VDDQ supply, thereby improving energy/power efficiency.
/ u; z3 X$ ?' _/ ^5 f. h" V9 I

l888888h

学习了 ...

clp783

路过，等高人指点。

jccj_wan

学习！