Document
Shenzhen LIZE Electronic Technology Co., Ltd
SPECIFICATION
MX8732A USB/PS2 Single Chip Optical Mouse Sensor
VERSION 1.1
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MX8732A U+P Single Chip Optical Mouse Sensor
TABLE OF CONTENTS
1. General Description.................................................................................................... 3 2. Features....................................................................................................................... 3 3. Pin Assignment........................................................................................................... 4 4. Absolute Maximum Rating ......................................................................................... 5 5. Electrical Characteristic ............................................................................................. 5 6. DC Electrical Characteristic....................................................................................... 5 7. Application Circuit ...................................................................................................... 6 8. Package (Dimension In mm) ...................................................................................... 7 9. Revision History.......................................................................................................... 7
Shenzhen LIZE Electronic Technology Co., Ltd Version: 1.1
Date: 10.May. 2013 Page: 2 of7
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MX8732A U+P Single Chip Optical Mouse Sensor
1. General Description
The MX8732A 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.
2. Features
●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 ●USB HID Specification, version 1.1 ●USB-IF and WHQL compliable ●5V Power Supply ●Power Saving During No Motion ●On Chip LED Drive with Regulated Current ●Crystal-less ●Resolution 1000DPI ●Low EMI radiation ●Supports 3D (X, Y, Z) input ●Supports 3 buttons and mechanical wheel encoding
Shenzhen LIZE Electronic Technology Co., Ltd Version: 1.1
Date: 10.May. 2013 Page: 3 of7
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MX8732A U+P Single Chip Optical Mouse Sensor
3. Pin Assignment
Chart 1 Pin Assignment
Pin No. 1 2 3 4 5 6 7 8 9 10 11 12
Symbol LB XYLED NC GND VDD5 V33 DP/CLK DM/DATA RB MB Z2 Z1
I/O I O P P P I/O I/O I I I I GND 5V Power Input Left button input
Function
LED control (sink current)
3.3V DC voltage output from internal regulator, This pin need to be tied to a 10UF/104 capacitor. USB D+ / PS2 CLK USB D- / PS2 DATA Right button input Middle button input Z axis Input 2 Z axis Input 1
Shenzhen LIZE Electronic Technology Co., Ltd Version: 1.1
Date: 10.May. 2013 Page: 4 of7
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MX8732A U+P Single Chip Optical Mouse Sensor
4. Absolute Maximum Rating
Symbol Operating Temperature Storage Temperature Input voltage Output voltage 0 –65 –0.5 –0.5 Min. 70 150 6.0 6.0 Max. ºC ºC V V Unit
5. Electrical Characteristic
Test Condition: T = 25ºC, VDD=5.0V, VSS=0V Parameters Operating voltage Operating Current (normal operation) Operating Current (Sleep mode) USB suspend current Output voltage of 3.3V regulator L, M, R, debounce time Z-axis debounce time Sym. VDD IOP Isleep Min. 4.5 − − Typ. 5.0 − 6.5 3.3 − − Max. 5.5 15 320 3.6 − − V mA mA uA V ms µs Unit
Isuspend Vreg Tb Tz 3.0 17 700
6. DC Electrical Characteristic
(T=25℃, Vdd=5V, Vss=0V)
Symbol
Parameter
Condition 3.3V Regulator
Min
Type
Max
Unit
Vreg
Output voltage of 3.3v Regulator Low Power Reset detecting low Voltage Low Power Reset detecting high Voltage
Vdd=4.4V~5.25V
3.0
3.3
3.6
V
VresetL
-
-
-
3.3
V
VresetH
MCU operation
3.6
-
-
V
Iil Icc
Input Leakage Current for input pins VDD operating supply
VIN=VDD, VSS Output pins
-
-
±1 10
uA mA
Shenzhen LIZE Electronic Tec.