EM84520 Ver la hoja de datos (PDF) - ELAN Microelectronics
Número de pieza
componentes Descripción
Fabricante
EM84520 Datasheet PDF : 19 Pages
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PS/2 mouse mode : (TA=25°C to 70°C)
Parameters
EM84520
2-IN-ONE SCROLLING MOUSE CONTROLLER
Preliminary
Sym. Min. Typ. Max.
Unit
Operating voltage
Operating current
CLK, DATA
VDD
4.5
5
5.5
V
(no load)
IOp
-
-
1
mA
Vt+
3.2
-
3.8
V
postive-going threshold voltage
CLK, DATA
Vt -
1.2
-
1.9
V
negative-going threshold voltage
DATA, CLK
Idc
0.56
-
1.86
mA
input current
(Vin=0V )
DATA,CLK
(Iprl=-2mA) Vprl
-
-
0.4
V
low output voltage
Serial mouse mode : (TA=25°C to 70°C)
Parameters
Operating voltage
Operating current
Operating current
RTS operating current
RTS operating current
RXD high output voltage
RXD low output voltage
RTS high input voltage
RTS low input voltage
(VDD=5.4, RTS=VDD)
(VDD=6.2, RTS=VDD)
(VDD=5.6, RTS=11V)
(VDD=5.4, RTS=12.5V)
(Vrh=Vrts-2.6V)
(Vrl=Vss+2.6V)
* All parameters in above table are compared with VSS.
Sym.
VDD
VRTS
Iop1
Iop2
Irts1
Irts2
Irh
Irl
Vrts+
Vrts-
Min.
4
-
-
3
-
4
2
-
9.6
-
Typ.
5.6
12.2
-
-
-
-
-
-
-
-
Max.
6.2
13
1
-
1.8
-
-
-2
-
6.8
Unit
V
V
mA
mA
mA
mA
mA
mA
V
V
AC ELECTRICAL CHARACTERISTICS (TA=25°C to 70°C)
PS/2 mouse mode :
Parameters
Sym. Min.
Oscillating Frequency
Key Debounce
Rising Edge Crossed Width
Falling Edge Crossed Width
Mouse CLK Active Time
Mouse CLK Inactive Time
Time that Mouse Sample DATA from
CLK rising Edge
System CLK Active Time
System CLK Inactive Time
Time from DATA Transition to Falling Edge of CLK
Time from rising Edge of CLK to DATA Transition
Time to mouse Inhibit after the 11th CLK to
ensure mouse does not start another Transmission
Fosc
Tkd
Tr
Tf
Tmca
Tmci
Tmdc
37.0-3%
-
13.5
13.5
-
-
-
Tsca
-
Tsci
-
Tsdc
-
Tscd
-
Tpi
0
Typ.
37.0
12
-
-
40.5
40.5
13.5
40.5
40.5
13.5
27.0
-
* This specification are subject to be changed without notice.
Max.
37.0+3%
-
-
-
-
-
-
-
-
-
-
50
Unit
KHz
ms
us
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6.28.1999 12
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