EM83812 Datasheet All-inone Plug & Play Scrlling Serial Mouse Controller

Manufacturer: ELAN Microelectronics Corp

Overview: EM83812 ALL-INONE PLUG & PLAY SCRLLING SERIAL MOUSE CONTROLLER ary n i m i l e.

Datasheet Details

Part number	EM83812
Manufacturer	ELAN Microelectronics Corp
File Size	84.33 KB
Description	ALL-INONE PLUG & PLAY SCRLLING SERIAL MOUSE CONTROLLER
Datasheet	EM83812_ELANMicroelectronicsCorp.pdf

General Description

The EM83812 PnP Scrolling Mouse Controller is specially designed to control serial mouse device.

This single chip can interface three key-switches and 4 X-Y photo-couples plus Z-axis directly to RS-232C.

There are four types Z-axis inputs used to implement scrolling mouse functionality.

Key Features

Using 50kΩ ±1% resistor for RC oscillation. Compatible with Microsoft serial scrolling mouse. 100 bytes PnP ID code could be filled by code layer. Built-in noise immunity circuit. The sampiling rate of motion detector is up to 65KHz. 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-couples inputs. RTS debouncing circuit.

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