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SC84520 Datasheet(PDF) 1 Page - List of Unclassifed Manufacturers |
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SC84520 Datasheet(HTML) 1 Page - List of Unclassifed Manufacturers |
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1 / 19 page  Silan Semiconductors SC84520 HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD Rev: 1.0 2000.12.31 1 TWO IN ONE SCROLLING MOUSE CONTROLLER DESCRIPTION The SC84520 Scrolling Mouse Controller id specially designed to control serial mouse or PS/2 mouse device. This single chip can interface three key-switched and 4 X-Y photo-couples plus Z-axis directly plus Z-axis directly to RS-232C or 8042 controller. There are four types Z-axis inputs used to implement scrolling mouse functionality. FEATURES *Using 50k Ω± 1% resistor for RC oscillation *Compatible with legacy PS/2 mouse *Compatible with Microsoft serial scrolling mouse *Compatible with Microsoft PS/2 scrolling mouse *Serial or PS/2 port auto-detect *100 bytes PnP ID code could be filled by code layer *Built-in noise immunity circuit *The sampling rate of motion detector is up to 65 kHz *Built-in three zener diodes : one in VDD to VSS,two in RTS to VDD *CMOS push-pull RXD output *Built-in current comparator for photo-couples input *Built-in three step dynamic input impedance *Three key-switches and four photo-coupled inputs *RTS debouncing circuit include *Photo couple test mode include *Low power dissipation *Six types Z direction input: 1. Photo couples input (Z/1) 2. Key-switches input 3. Voltage-sensing input 4. Mechanical input(Z/1) 5. Photo couples input (Z/4) 6. Mechanical input (Z/2) DIP-16 *Package type: SC84510AP: 16DIP, Photo coupled input(Z/1) SC84510BP: 16DIP, Key-switches input SC84510CP: 16DIP, Voltage-sensing Input SC84510DP: 16DIP, Mechanical input (Z/1) SC84510EP: 16DIP, Photo couples input (Z/4) SC84510FP: 16DIP, Mechanical input (Z/2) APPLICATIONS *Serial PnP scrolling mouse *PS/2 scrolling mouse *Combo PnP scrolling mouse |
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