Datasheet

ST75185
5/18
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
R
L
=3to7KΩ C
L
=15pF
(See Figure 3, 4)
315 500 ns
t
PHL
Propagation Delay Time, High to Low
Level Output
R
L
=3to7KΩ C
L
=15pF
(See Figure 3, 4)
75 175 ns
t
TLH
Transition Time Low to High Level
Output
R
L
=3to7KΩ C
L
=15pF
(See Figure 3, 4)
60 100 ns
R
L
=3to7KΩ C
L
= 2500 pF
(Note 6, See Figure 3, 4)
1.7 2.5 µs
t
THL
Transition Time High to Low Level
Output
R
L
=3to7KΩ C
L
=15pF
(See Figure 3, 4)
40 7.5 ns
R
L
=3to7KΩ C
L
= 2500 pF
(Note 6, See Figure 3, 4)
1.5 2.5 µs
Symbol Parameter Test Conditions
Value
Unit
Min. Typ. Max.
V
T+
Positive Going Threshold Voltage (See Figure 6) 2.2 2.4 V
V
T-
Negative Going Threshold Voltage T
A
= 25 °C (See Figure 6) 0.75 0.97 V
V
hys
Input Hysteresis (V
T
+-V
T
-) 0.5 V
V
OH
High Level Output Voltage I
OH
= -0.5mA V
IH
= 0.75 V 2.6 4 5 V
Inputs Open 2.6
V
OL
Low Level Output Voltage V
I
=3V I
OL
= 10 mA 0.2 0.45 V
I
IH
High Level Input Current V
I
= 25 V (See Figure 6) 3.6 8.3 mA
V
I
= 3 V (See Figure 6) 0.43
I
IL
Low Level Input Current V
I
= -25 V (See Figure 6) -3.6 -8.3 mA
V
I
= -3 V (See Figure 6) -0.43
I
OS
Short-Circuit Output Current V
I
=0V V
O
=0V
(See Figure 5)
-3.4 -12 mA
Symbol Parameter Test Conditions
Value
Unit
Min. Typ. Max.
t
PLH
Propagation Delay Time Low to High
Level Output
R
L
=5KΩ C
L
=50pF
(See Figure 6)
400 1000 ns
t
PHL
Propagation Delay Time High to Low
Level Output
R
L
=5KΩ C
L
=50pF
(See Figure 6)
70 150 ns
t
TLH
Transition Time Low to High Level
Output
R
L
=5KΩ C
L
=50pF
(See Figure 6)
200 525 ns
t
THL
Transition Time High to Low Level
Output
R
L
=5KΩ C
L
=50pF
(See Figure 6)
20 60 ns