參數(shù)資料
型號(hào): MC1489A
廠商: ON SEMICONDUCTOR
英文描述: Quad Line EIA-232D Receivers(RS-232四線接收器)
中文描述: 四線環(huán)評(píng)- 232D接收器(RS - 232接口四線接收器)
文件頁數(shù): 5/10頁
文件大?。?/td> 98K
代理商: MC1489A
MC1489, MC1489A
http://onsemi.com
5
TYPICAL CHARACTERISTICS
(V
CC
= 5.0 Vdc, T
A
= +25
°
C, unless otherwise noted)
V
in
, INPUT VOLTAGE (V)
10
0
10
8.0
6.0
4.0
2.0
0
2.0
4.0
6.0
8.0
10
25
20
15
10
5.0
5.0
15
25
20
I
L
Figure 5. Input Current
I
I
V
I
R
T
R
T
5.0 k
V
th
5.0 V
R
T
13 k
V
th
5.0 V
6.0
5.0
4.0
3.0
2.0
1.0
0
3.0
2.0
1.0
0
2.0
1.0
3.0
V
I
, INPUT VOLTAGE (V)
V
ILH
V
O
V
IHL
E
O
V
th
R
T
V
I
R
T
11 k
V
th
5.0 V
Figure 6. MC1489 Input Threshold
Voltage Adjustment
R
T
V
I
, INPUT VOLTAGE (V)
3.0
4.0
5.0
6.0
1.0
2.0
0
4.0
2.0
1.0
3.0
2.0
1.0
0
3.0
V
O
R
T
5.0 k
V
th
5.0 V
R
T
11 k
V
th
5.0 V
Figure 7. MC1489A Input Threshold
Voltage Adjustment
E
O
V
th
R
T
V
in
V
IHL
V
ILH
MC1489 V
IH
MC1489 V
IL
T, TEMPERATURE (
°
C)
+120
+60
0
60
0
0.2
0.4
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
2.2
2.4
V
I
MC1489A V
IL
MC1489A V
IH
Figure 8. Input Threshold Voltage
versus Temperature
V
IH
MC1489A
V
IH
MC1489
V
IL
MC1489
V
IL
MC1489A
V
CC
, POWER SUPPLY VOLTAGE (V)
4.0
5.0
6.0
0
3.0
2.0
1.0
I
Figure 9. Input Threshold versus
Power Supply Voltage
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