MX8731A PDF – USB/PS2 Optical Mouse Sensor

This post explains for the Mouse Sensor.

The Part Number is MX8731A.

The function of this semiconductor is USB/PS2 Single Chip Optical Mouse Sensor.

The package is SOP 16 Pin Type

Manufacturer: LIZE Electronic

Preview images :

MX8731A pdf


The MX8731A 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/PS2 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.


MX8731A pinout datasheeet


. Optical Navigation Technology
. Low-cost and powerful solution for PS/2 and low-speed USB combo mouse
. Microsoft 3D Intellimouse and IBM PS/2 mouse compatible
. Internal switch for USB DP/DM and PS2 CLK/Data I/O
. Universal Serial Bus Specification, version 2.0
. Power Saving During No Motion
. On Chip LED Drive with Regulated Current
. Crystal-less
. Low EMI radiation
. Resolution is default by manufacturer (800 or 1200 CPI)
. Supports 3D (X, Y, Z) input
. Supports 3 buttons and mechanical wheel encoding


MX8731A PDF Datasheet