1. General Description The MX8733B chip is a low cost single chip optical mouse solution used to implement a non-mechanical tracking engine for computer mice. It is based on optical navigation technology with USB combo MCU bundled. Which measures changes in position by optically acquiring sequential surface images(frames) and mathematically determining the direction and magnitude of movement. The single chip optical mouse sensor provides a complete and compact mouse solution, There are no moving parts, and precision optical alignment is not required, few outside components use and facilitate high volume assembly. It is a true crystal-less and ultra low cost solution. 2. Features â?�Optical Navigation Technology â?�Low-cost and powerful solution for low-speed USB combo mouse â?�Universal Serial Bus Specification, version 2.0 â?�USB HID Specification, version 1.1 â?�USB-IF and WHQL compliable â?�5V Power Supply â?�Power Saving During No Motion â?�On Chip LED Drive with Regulated Current â?�Crystal-less â?�Resolution 1000CPI â?�Low EMI radiation â?�Supports 3D (X, Y, Z) input â?�Supports 3 buttons and mechanical wheel encoding