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EM84520 Datasheet(PDF) 12 Page - ELAN Microelectronics Corp

Part # EM84520
Description  2-IN-ONE SCROLLING MOUSE CONTROLLER
PDF  19 Pages
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Manufacturer  EMC [ELAN Microelectronics Corp]
Direct Link  http://www.emc.com.tw
Logo EMC - ELAN Microelectronics Corp

EM84520 Datasheet(HTML) 12 Page - ELAN Microelectronics Corp

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EM84520
2-IN-ONE SCROLLING MOUSE CONTROLLER
12
* This specification are subject to be changed without notice.
6.28.1999
Preliminary
Preliminary
Preliminary
Preliminary
Preliminary
AC ELECTRICAL CHARACTERISTICS (T
A=25°C to 70°C)
* All parameters in above table are compared with VSS.
PS/2 mouse mode :
Parameters
Sym.
Min.
Typ.
Max.
Unit
Oscillating Frequency
Fosc
37.0-3%
37.0
37.0+3%
KHz
Key Debounce
Tkd
-
12
-
ms
Rising Edge Crossed Width
Tr
13.5
-
-
us
Falling Edge Crossed Width
Tf
13.5
-
-
us
Mouse CLK Active Time
Tmca
-
40.5
-
us
Mouse CLK Inactive Time
Tmci
-
40.5
-
us
Time that Mouse Sample DATA from
Tmdc
-
13.5
-
us
CLK rising Edge
System CLK Active Time
Tsca
-
40.5
-
us
System CLK Inactive Time
Tsci
-
40.5
-
us
Time from DATA Transition to Falling Edge of CLK
Tsdc
-
13.5
-
us
Time from rising Edge of CLK to DATA Transition
Tscd
-
27.0
-
us
Time to mouse Inhibit after the 11th CLK to
Tpi
0
-
50
us
ensure mouse does not start another Transmission
PS/2 mouse mode : (T
A=25°C to 70°C)
Parameters
Sym.
Min.
Typ.
Max.
Unit
Operating voltage
V
DD
4.5
5
5.5
V
Operating current
(no load)
I
Op
--
1
mA
CLK, DATA
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 : (T
A=25°C to 70°C)
Parameters
Sym.
Min.
Typ.
Max.
Unit
Operating voltage
VDD
4
5.6
6.2
V
VRTS
-
12.2
13
V
Operating current
(VDD=5.4, RTS=VDD)
Iop1
-
-
1
mA
Operating current
(VDD=6.2, RTS=VDD)
Iop2
3
-
-
mA
RTS operating current
(VDD=5.6, RTS=11V)
Irts1
-
-
1.8
mA
RTS operating current
(VDD=5.4, RTS=12.5V)
Irts2
4
-
-
mA
RXD high output voltage
(Vrh=Vrts-2.6V)
Irh
2
-
-
mA
RXD low output voltage
(Vrl=Vss+2.6V)
Irl
-
-
-2
mA
RTS high input voltage
Vrts+
9.6
-
-
V
RTS low input voltage
Vrts-
-
-
6.8
V



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