概觀
The ISSI IS62/65WVS0648GALL/GBLL are 512K bit
Fast Serial static RAMs organized as 64K bytes by 8
bits. It is fabricated using ISSI's high-performance
CMOS technology.
The device is accessed via a simple Serial Peripheral
Interface (SPI) compatible serial bus. The bus signals
required are a clock input (SCK) plus separate data
in (SI) and data out (SO) lines. Access the device is
controlled through a Chip Select (CS#) input.
Additionally, SDI (Serial Dual Interface) and SQI
(Serial Quad Interface) is supported if your application
needs faster data rates.