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參數(shù)資料
| 型號(hào)： | EM83055 |
| 英文描述： | Keyboard encoder for Windows ME， 98， 2000 with FN key enhanced |
| 中文描述： | 鍵盤(pán)編碼器適用于Windows Me，98，加強(qiáng)與Fn鍵2000 |
| 文件頁(yè)數(shù)： | 8/20頁(yè) |
| 文件大?。?/td> | 116K |
| 代理商： | EM83055 |
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* This specification are subject to be changed without notice.
EM83050H
KEYBOARD ENCODER
16
9.16.1999
Preliminary
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
IL
±1
AV
IN=VCC ,VSS
Input high voltage
V
IH
2.0
V
Input low voltage
V
IL
0.8
V
Output high voltage
V
OH1
2.4
V
I
OH = - 6.0 mA
Output low voltage
V
OL1
0.4
V
I
OL = 3.0 mA
Output low voltage for LEDS
V
OL3
3.2
V
I
OL = 10 mA
Internal Pull-high resistance ( port 6,9 )
R
PH1
4.7
10
K
Internal Pull-high resistance for
R
PH2
1.5
2.2
3
K
DATA, CLK
AC ELECTRICAL CHARACTERISTICS
Parameter
Sym.
Min.
Typ.
Max.
Unit
Time from DATA transition to falling edge of CLK
T1
5
25
S
Time from rising edge of CLK to DATA transition
T2
5
T4 - 5
S
Duration of CLK inactive
T3
30
40
50
S
Duration of CLK active
T4
30
40
50
S
Time to auxiliary device inhibit after clock 11 to ensure
T5
50
S
the auxiliary device does not start another transmission
Time from inactive to active CLK transition, used to time
T6
5
25
S
when auxiliary device samples DATA
System clock
FCLK
1.843
MHz
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