Features â??Signle power supply â??Power range 1.7V -3.2V â??Precision optical displacement prediction technology â??Very good 2-D motion sensor â?? Support extremely fast moving speed â?? Maximum speed of movement 28 Inch/sec CPI â??CPI: 400/ 500/ 600/ 800/ 1000(Default)/ 1200/ 1600 â??Once stop moving, immediately enter the energy saving model â?? Data transmission is achieved through serial interfaces â??Built-in low power timer (LPT),sleep1/sleep2 models â??The mouse can be awakened by the MOTSWK pin, and the sensor is controlled to wake up from the sleep mode. â?? Built-in oscillator â??LED current-limiting resistance 68-470 Ohm(Determine by the actual plane),recommend 100 Ohm. â?? DIP8 package Description MX8650A is a high integration optical mouse sensor, which have minimal external components . It is compatible with Microsoft 3D IntelliMouse, and CPI can be adjusted though fixed CPI register.