Full Speed USB Optical Gaming Mouse

General Description

The SPCP6651B sensor SoC is a low cost single chip optical gaming mouse solution used to implement a non-mechanical tracking engine for computer mice. It is based on SunplusIT optical navigation technology which measures changes in position by optically acquiring sequential surface images and mathematically determining the direction and magnitude of movement. The General optical mouse SoC 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.

The SPCP6651B is in a SFF (Small form factor) symmetrical PDIP12-pin optical package and comes with multiple CPI(counts per inch) resolution by CPI button switching and the speed of motion up to 66 inches per second. It includes 3 generally buttons (R、M、L); X-Y motion and a mechanical wheel encoding (1:2) for vertical scrolling, either 4th / 5th buttons.

USB MCU inside so that it’s no more mouse controller is needed to interface through USB. The SPCP6651B can receive USB command and echo status or data format, both complete USB spec V2.0 and USB HID spec V1.1 compatibility. It is also a cost effective solution to support USB Optical Mouse.


  • Optical Navigation Technology
  • No Mechanical Parts
  • Accurate Motion Up to 66''/sec
  • Enhanced navigation over a wide variety on surfaces
  • 5V Power Supply
  • Power Saving During No Motion
  • On Chip LED Drive with Regulated Current
  • IEC 60825-1 eye safety under single fault conditions
  • Internal oscillator – no clock input needed
  • Compliant USB Rev2.0 Specification
  • Compliant USB HID Rev1.1 Specification
  • CPI resolution optional by CPI button switching (see section 6.1)
  • 16bits X-Y motion for high resolution CPI
  • Support generally 3 buttons and mechanical wheel encoding for vertical scrolling
  • Support extends 4th / 5th buttons, Fire Key, Desktop Key and LED On/Off Key
  • 9 programmable buttons and Support 2~ 8 speed CPI selection
  • Support Atech 06 LED Controller for LED display
  • Small form factor 12Pin PDIP package available

Product Solutions

SunplusIT offer a series of comprehensive ASSP & ASIC product solutions with on-site engineering supports targeting Human Interface Devices, Industry Control, PC External HDD/ODD Drives and PC/NB Camera market segments.

MCU Solutions
  • Wired Optical Mouse
  • Wireless Desktop (Keyboard & Mouse)
  • MCU for HID & Toy Devices

Image Solutions
  • Web camera controllers
  • NB camera controllers




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