EM84510BP Ver la hoja de datos (PDF) - ELAN Microelectronics
Número de pieza
componentes Descripción
Fabricante
EM84510BP Datasheet PDF : 19 Pages
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EM84510
PS/2 SCROLLING MOUSE CONTROLLER
FUNCTIONAL BLOCK DIAGRAM
Z1
Z2
OPT
X1
X2
Y1
Y2
L
M
R
C
D
O ME
M OT
P TE
A
IC
R OT
A NO
T
R
O
R
D
E
B
O
U
N
C
E
THREE TYPES SELECTOR
COMPARATOR
VOLTAGE
SENSOR
KEY-SWITCH
DETECTOR
Z-AXIS COUNTER
COUNTER
MULTIPLEXER
COMMON
STATUS
OSCR
OSC.OUT
SYSTEM CLOCK
GENERATOR
RC
OSCILLATION
DATA CLK
DATA
I/O
TIMING
CONTROLLER
PIN DESCRIPTIONS
Symbol
I/O
OPT
I/O
OSC.OUT
O
OSCR
I
CLK
I/O
DATA
I/O
R/M/L
I
X1
I
X2
Y1
Y2
Z1
Z2
VSS
VDD
Function
INPUT: 200kohm pull low to VSS.
When OPT is connected to VDD, EM84510 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 60us.
RC mode oscillation with 51kohm resistor.
Connect to 8042 auxiliary port CLK line.
Connect to 8042 auxiliary port DATA line.
Three key-switches inputs.
200kohm resistor pull low.
Three step dynamic input impedance.
Use current comparator to measure photo-couples "ON" ,or "OFF".
Z-axis inputs.
Photo mode: Three step dynamic input impedance. Current comparator input.
Key mode: 200kohm resistor pull low. 7 levels increased by "M" key.
Voltage mode: 200kohm resistor pull low. 7 levels voltage comparator.
Mechanical mode : 13.2kohm resistor pull low.
Negative power.
Power line.
* This specification are subject to be changed without notice.
5.30.2001 2
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