MDT80C04

MDT80C04 1. General Description 4. Pin Assignment The MDT80C04 is a Low Cost Scrolling Mouse Controller for PS/2 (3D,2D) only. The auto resistance matching circuits are built in to prevent the adjustment in the resistance of MDT80C04A1P / MDT80C04A1S X1 X2 Y1 Y2 Vdd NC OSCRH OPT 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 Z2 Z1 CLK DATA Vss L M R photo-sensors during manufacture. 2. Features l l l l l Compatible with IBM PS/2 mouse. Compatible with Microsoft PS/2 scrolling mouse. Internal Power-On reset (POR). Auto resistance matching circuit for X1 X2 Y1 Y2. Internal RC oscillation about 6.5MHz ~7.5MHz . external resistor to adjust internal RC frequency l l Motion Detector Sample Rate 25KHZ. Three key-switches and six photo-couples inputs, or three key-switches and one rotate switch inputs, four photo-couples inputs. l l Low power dissipation. 2 type Z direction input. 1. Photo couples input Z/2 2. Mechanical input Z/2 l Cost Saving¡G 16 PIN DIP, 16 PIN SOP Package MDT80C04A2P/MDT80C04A2S Vdd OPT Z1 Z2 CLK DATA NC Vss 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 OSCRL Y2 Y1 X2 X1 L M R 3. Applications 2D/3D PS/2 scrolling mouse This specification is subject to be changed without notice. Please visit our web site for the most updated information. http://www.mdtic.com.tw 1 of 12 10/29/2002 Ver. 1.1 MDT80C04 5. Pin Function Description Symbol X1 X2 Y1 Y2 Vdd N/C OSCRH OSCRL OPT I I I I/O I I I I +5V No connect Connect a resistor to Vdd to adjust internal RC freq. for A1. Connect a ...