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EM83055H Datasheet(PDF) 17 Page - ELAN Microelectronics Corp

Part # EM83055H
Description  KEYBOARD ENCODER
PDF  22 Pages
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Manufacturer  EMC [ELAN Microelectronics Corp]
Direct Link  http://www.emc.com.tw
Logo EMC - ELAN Microelectronics Corp

EM83055H Datasheet(HTML) 17 Page - ELAN Microelectronics Corp

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* This specification are subject to be changed without notice.
EM83055H
KEYBOARD ENCODER
9.25.2001
ABSOLUTE MAXIMUM RATINGS
Parameter
Sym.
Ratings
Supply Voltage
V
CC
-0.5V to +7V
Input Voltage
V
IN
-0.3V to +6V
Output Voltage
V
OUT
-0.3V to +6V
Temperature under bias
T
B
0
°C to 70°C
Storage temperature
T
S
-65
°C to 150°C
DC ELECTRICAL CHARACTERISTICS
Parameter
Sym.
Min. Typ.
Max.
Unit
Condition
Operating voltage
V
CC
4.5
5
5.5
V
Operating supply current
I
CCI
3
mA
Fosc=1.8432MHz
Input leakage
I
IN
±1
µAV
IN=VCC ,VSS
Input high voltage
V
IH
2.0
V
Input low voltage
V
IL
0.8
V
Output low voltage
V
OL1
0.4
V
I
OL1 = 3.0 mA
Output low voltage for LEDS
V
OL2
3.2
V
I
OL2 = 10 mA
Internal Pull-high resistance ( port 6,9 )
R
PH1
12
23
K
Ω
V
PH1 = 0V
Internal Pull-high resistance for
R
PH2
1.5
2.2
3
K
Ω
V
PH2 = 0V
DATA, CLK
Output low voltage for DATA CLK
V
OL3
0.4
V
I
OL3 = 5 mA
AC ELECTRICAL CHARACTERISTICS
Parameter
Sym.
Min.
Typ.
Max.
Unit
Time from DATA transition to falling edge of CLK
T1
5
25
µS
Time from rising edge of CLK to DATA transition
T2
5
T4 - 5
µS
Duration of CLK inactive
T3
30
40
50
µS
Duration of CLK active
T4
30
40
50
µS
Time to auxiliary device inhibit after clock 11 to ensure
T5
50
µS
the auxiliary device does not start another transmission
Time from inactive to active CLK transition, used to time
T6
5
25
µS
when auxiliary device samples DATA
System clock
FCLK
1.843
MHz



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