SC84502 Ver la hoja de datos (PDF) - Silan Microelectronics

Número de pieza

componentes Descripción

Fabricante

SC84502

PS/2 MOUSE CONTROLLER

Silan Microelectronics 

Silan

Semiconductors

SC84502

X1, X2, Y1, Y2 INPUT IMPEDANCE

UNIT:KΩ

16.0

15.0

14.0

13.0

12.0

11.0

10.0

9.0

8.0

7.0

6.0

5.0

4.0

3.0

2.0

1.0

MAX.

TYP.

MIN.

0

1.0

2.0

3.0

4.0

5.0

INPUT VOLTAGE

PIN DESCRIPTION (refer to SC84502BP)

Pin No. Pin Name

1

VDD

2

OP

3

NC

4

NC

5

OSCOUT

6

CLK

7

DATA

8

VSS

9

R

10

M

11

L

I/O

Description

-- Positive Power Supply.

X, Y inputs: Floating: Comparator input.

I

GND: Schmitt trigger input.

Short to OSC OUT: Testing Mode.

-- No Connection

-- No Connection

O Clock output.

I/O 8042 auxiliary port CLK line.

I/O 8042 auxiliary port DATA line.

-- Negative Power Supply

Three key-switches esert seven different combinations totally. Both key-pressed

and key-released signals will be sent accompanied with horizontal and vertical

I state. The status of the key-switches will be preserved, whenever the value of

horizontal or vertical counters will present at DATA. And the debounce interval for

both key-press and key release is 12ms.

12

X1

13

X2

Four photo-couple signal denote UP, DOWN, LEFT and RIGHT state.

I During the scanning period, as long as the photo-couples change their states, the

14

Y1

value of vertical or horizontal, counter will increase or decrease accordingly.

15

Y2

16

OSCR

I 50kΩ ± 5% pull low for 35kHz oscillation

HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD

Rev: 1.0 2000.12.31

4

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