SC84510FP Ver la hoja de datos (PDF) - Silan Microelectronics

Número de pieza

componentes Descripción

Fabricante

SC84510FP

PS/2 SCROLLING MOUSE CONTROLIER

Silan Microelectronics 

Silan

Semiconductors

SC84510

PIN DESCRIPTION

Pin Name

I/O

OPT

I/O

OSC OUT

O

OSCR

I

CLK

I/O

DATA

I/O

R

M

I

L

X1

X2

I

Y1

Y2

Z1

I

Z2

VSS

VDD

Description

INPUT: 200kΩ pull low to VSS.

When OPT is connected to VDD, SC84510 will enter test mode. In test mode, L will

be the output of X1, while M will be the output of X2. Toggling R key can change

these output to be Y1, Y2 or Z1, Z2 respectively.

OUTPUT: 2kHz Z-axis LED-driving source.

“1” = VDD, “0” = floating

High duty is about 60µs.

RC mode oscillation with 50kΩ resistor.

Connect to 8042 auxiliary port CLK line.

Connect to 8042 auxiliary port DATA line.

Three key-switches inputs.

200kΩ resistor pull low.

Three step dynamic input impedance.

Use current comparator to measure photo-couples “ON”, or “OFF”.

Z-axis input.

Photo mode: Three steps dynamic input impedance. Current comparator input.

Key mode: 200kΩ resistor pull low. 7 levels increased by “M” key.

Voltage mode: 200kΩ resistor pull low. 7 levels voltage comparator.

Mechanical mode: 13.2kΩ resistor pull low.

Negative power.

Power line.

HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD

Rev: 1.0 2000.12.31

5

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