3x 是不是疯了？ 这么多 pin 多少成本能做出来？
“To boost data transmission, Samsung’s wide I/O DRAM uses 512 pins for
data input and output compared to the previous generation of mobile DRAMs,
which used a maximum of 32 pins. If you include the pins that are involved
in sending commands and regulating power supply, a single Samsung wide I/O
DRAM is designed to accommodate approximately 1200 pins.” http://www.xbitlabs.com/news/memory/display/20110222201121_Sams
