EM84520 Datasheet 2-in-one Scrolling Mouse Controller

Manufacturer: ELAN Microelectronics Corp

Overview: EM84520 2-IN-ONE SCROLLING MOUSE CONTROLLER ary n i m i l e Pr GENERAL.

Datasheet Details

Part number	EM84520
Manufacturer	ELAN Microelectronics Corp
File Size	120.10 KB
Description	2-IN-ONE SCROLLING MOUSE CONTROLLER
Datasheet	EM84520_ELANMicroelectronicsCorp.pdf

General Description

The EM84520 Scrolling Mouse Controller is specially designed to control serial mouse or PS/2 mouse device.

This single chip can interface three key-switches and 4 X-Y photo-couples plus Z-axis directly to RS-232C or 8042 controller.

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

Key Features

Using 50kΩ ±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 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. Bu.

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