A2633 Datasheet PDF – 3D PS/2 CMOS Optical Mouse Chip

Part Number : A2633

Function : 3D PS/2 CMOS optical mouse single chip

Package :  Staggered DIP12 type

Manufacturers : Apexone Microelectronics

Image : A2633 datasheet pinout


The A2633 is a CMOS process with excellent optical navigation and uses a small number of peripheral electronic components. It is fully compatible with Microsoft IntelliMouse 3D and IBM PS/2 mice, and supports mechanical Z-axis encoders. PS/2 optical mouse single chip. The A2633 is also pin-to-pin compatible with the A2636.


1. Single 5V power supply
2. Microsoft 3D and IBM PS/2 mouse compatible
3. Single chip solution for both USB & PS/2 mouse function
4. Designed for Vista,Windows2000, XP, ME, and 98 and Linux
5. Complete USB v1.1 1.5Mbps compatibility
6. Supports three buttons (L, M, R) and 3D input
7. High speed motion detection

Application Circuits

optic a2633 circuit


1. PS/2 Optical mouse
2. Trackball mouse

A2633 Datasheet

A2633 pdf



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EKM6251 Datasheet PDF – RF Mouse Rx Controller – Elan

Part Number : EKM6251

Function : U+P RF Mouse Rx Controller

Package : DIP, SOP 16 Pin Type

Manufacturers : Elan Microelectronics Corp

Pinouts :

EKM6251 datasheet


Description :

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 within the file : KM6251

EKM6251 Datasheet PDF Download

EKM6251 pdf