Document
Silan Semiconductors
SC83702
ALL IN ONE MOUSE CONTROLLER
DESCRIPTION
The SC83702 Mouse Controller is specially designed to control mouse device. This single chip can interface three key-switches and four photo-couple direct to RS-232C. The SC83702 does not need any external power supply, so the mouse can go without a power line. It is versatile with both microsoft and mouse system. Debouncing circuit were provided to prevent false entry and to improve the accuracy. In 1200 baud rate non-auto speed with 200 DPI wheels and photo-couples, the scanning is 650mm/sec without missing a dot in microsoft mode, and the scanning speed can up to 770mm/sec in mouse system mode.
SOP-16 DIP-16
FEATURES
*Built-in two zener diode between VDD and VSS, RTS and VDD *Built-in noise immunity circuit *CMOS DIP 16 pins package&SOP 16 pins package *Low power dissipation *Use 32.768KHz crystal or 3.58MHz resonator *Oscillator circuits on-chip *Serial output in 1200 baud rate *Can be powered directly from R.