參數(shù)資料
型號(hào)： ST75285CTR
廠商： 意法半導(dǎo)體
元件分類： RS-232
英文描述： 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors
中文描述： 5V的高速RS - 232收發(fā)器與0.1uF電容
文件頁(yè)數(shù)： 5/13頁(yè)
文件大?。?/td> 300K
代理商： ST75285CTR
ST75285
5/13
DRIVER SWITCHING CHARACTERISTICS
(V
DD
= 12V, V
SS
= -12V, V
CC
= 5V, T
A
= 25 °C)
NOTE 6: Measured between -3V and 3V points of output waveform (EIA-232-E conditions), all unused inputs are tied.
RECEIVER ELECTRICAL CHARACTERISTICS OVER OPERATING CONDITIONS
All typical values are at TA = 25°C, VCC = 5V, VDD = 9V and VSS=-9V
RECEIVER SWITCHING CHARACTERISTICS
(V
DD
= 12V, V
SS
= -12V, V
CC
= 5V T
A
= 25°C)
Symbol
Parameter
Test Conditions
Value
Unit
Min.
Typ.
Max.
t
PLH
Propagation Delay Time, Low to High
Level Output
Propagation Delay Time, High to Low
Level Output
Transition Time Low to High Level
Output
R
L
= 3 to 7 K
C
L
= 15 pF
(See Figure 3, 4)
R
L
= 3 to 7 K
C
L
= 15 pF
(See Figure 3, 4)
R
L
= 3 to 7 K
C
L
= 15 pF
(See Figure 3, 4)
R
L
= 3 to 7 K
C
L
= 2500 pF
(Note 6, See Figure 3, 4)
R
L
= 3 to 7 K
C
L
= 15 pF
(See Figure 3, 4)
R
L
= 3 to 7 K
C
L
= 2500 pF
(Note 6, See Figure 3, 4)
200
400
ns
t
PHL
50
100
ns
t
TLH
60
100
ns
1.7
2.5
μ
s
t
THL
Transition Time High to Low Level
Output
50
100
ns
1.5
2.5
μ
s
Symbol
Parameter
Test Conditions
Value
Unit
Min.
Typ.
Max.
V
T+
V
T-
V
hys
V
OH
Positive Going Threshold Voltage
Negative Going Threshold Voltage
Input Hysteresis (V
T+
- V
T-
)
High Level Output Voltage
(See Figure 6)
T
A
= 25 °C (See Figure 6)
2.2
0.97
2.4
V
V
V
V
0.75
0.5
2.6
2.6
I
OH
= -0.5mA
V
IH
= 0.75 V
Inputs Open
I
OL
= 10 mA
4
5
V
OL
I
IH
Low Level Output Voltage
High Level Input Current
V
I
= 3 V
V
I
= 25 V (See Figure 6)
V
I
= 3 V
(See Figure 6)
V
I
= -25 V (See Figure 6)
V
I
= -3 V
(See Figure 6)
V
I
= 0 V
V
O
= 0 V
(See Figure 5)
0.2
0.45
8.3
V
3.6
0.43
-3.6
-0.43
mA
I
IL
Low Level Input Current
-8.3
mA
I
OS
Short-Circuit Output Current
-3.4
-12
mA
Symbol
Parameter
Test Conditions
Value
Unit
Min.
Typ.
Max.
t
PLH
Propagation Delay Time Low to High
Level Output
Propagation Delay Time High to Low
Level Output
Transition Time Low to High Level
Output
Transition Time High to Low Level
Output
R
L
= 5 K
(See Figure 6)
R
L
= 5 K
(See Figure 6)
R
L
= 5 K
(See Figure 6)
R
L
= 5 K
(See Figure 6)
C
L
= 50 pF
200
500
ns
t
PHL
C
L
= 50 pF
60
120
ns
t
TLH
C
L
= 50 pF
200
525
ns
t
THL
C
L
= 50 pF
20
60
ns
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