General Description
PAN3501UI is a CMOS process optical mouse sensor single chip with USB interface that serves as a nonmechanical motion estimation engine for implementing a computer mouse.

Features
USB interface
Single 5.0 volt power supply
Compatible with Microsoft® Windows 2000® and 5-button Wheel Mouse
Optical motion estimation technology
Complete 2-D motion sensor
Accurate motion estimation over a wide range of surfaces
High speed motion detection up to 28 inches/sec
High resolution up to 800cpi
Power savingmode duringtimes of no movement
Supports five buttons (R, M, L, B4, B5) and three axes (X, Y, Z) output
Z-axis can support two kinds of scroller input (Opto-mechanical and mechanical).
Complete Universal Serial Bus® spec V1.1 compatibility
Complete USB HID spec V1.1 compatibility
Integrated USB transceiver and 1.5Mbps USB serial interface engine