SPCP168A Datasheet – USB Optical Mouse IC – Sunplus IC

Part Number: SPCP168A, C3145

Function : USB Optical Mouse SoC

Manufacturer: Sunplus Innovation Technology Inc.


SPCP168A image

SPCP168A Datasheet


The SPCP168A sensor SoC is a low cost single chip optical mouse General solution used to implement a non-mechanical tracking engine for computer mice. It is based on SPCP138A 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 SPCP168A is in a SFF (Small form factor) symmetrical PDIP14-pin optical package and comes with multiple CPI(counts per inch) resolution by CPI button switching and the speed of motion up to 25 inches per second. It includes 3 generally buttons (R、M、L); X-Y motion and a mechanical wheel encoding (1:2)for vertical scrolling and 2 extra 4th / 5th buttons optional.

USB MCU inside so that it’s no more mouse controller is needed to interface through USB. The SPCP168A 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.

Application Circuit

SPCP168A Circuit

SPCP168A Datasheet

SPCP168A pdf

Related articles across the web

EKM6251 Datasheet PDF – RF Mouse Rx Controller – Elan

Part Number: EKM6251

Function: U+P RF Mouse Rx Controller

Package: DIP, SOP 16 Pin Type

Manufacturer: Elan Microelectronics Corp


EKM6251 datasheet



The eKM6251 is standard RF Mouse Receiver (Rx) Controller for USB and PS/2 compatible interface. It’sreceives the RF packet data fromRF Rx module (circuits). And decode the RF packet data and transmitting the data to PC by USB or PS/2 interface. The eKM6251 have internal EEPROMto storage the Device ID, do not need the external storage device like 93C46. It’shave built-in RF signal sampling and noise immunity function to improve the RF data decode efficiency.


1. Operating voltage: 2.5V~5.5V
2. Built-in regulator to generate 3.3V
3. Operating frequency: 6.00Mhz
4. Built-in USB Device Controller and Interface.
5. Support USB and PS/2 detect mode and compatible interface.
6. Built-in EEPROM to storage 1 byte Device ID (255 sets)
7. Built-in RF signal sampling and noise immunity function.
8. Support a LED to display RF packet receive status and ID set mode.


1. USB RF Mouse Rx
2. PS/2 RF Mouse Rx

Other data sheets are available within the file: KM6251

EKM6251 Datasheet PDF Download

EKM6251 pdf