ST75185C
Table 8.
Electrical characteristics
Driver electrical characteristics over operating free-air temperature range
(V
DD
= 9 V, V
SS
= -9 V, V
CC
= 5 V, unless otherwise specified)
Value
Parameter
Test conditions
Min.
Typ.
7.5
-7.5
-6
10
−
1.6
-4.5
4.5
300
−
12
12
−
19.5
19.5
Max.
V
V
µA
mA
mA
mA
Ω
V
IL
= 0.8 V, R
L
= 3kΩ
(See
Figure 3)
V
IH
= 1.9 V, R
L
= 3kΩ
(See
Figure 3)
V
I
= 5 V (See
Figure 4)
V
I
= 0 V (See
Figure 4)
V
IL
= 0.8 V, V
O
= 0 V
(See
Figure 3)
Unit
Symbol
V
OH
V
OL
I
IH
I
IL
I
OS(H)
I
OS(L)
R
O
High level output voltage
Low level output voltage
(Note 3)
High level input current
Low level input current
High level short circuit
output current (Note 4)
6
Low level short circuit output V
IH
= 2 V V
O
= 0 V
current
(See
Figure 3)
Output resistance
V
DD
= V
SS
= V
CC
= 0 V
V
O
= -2 to 2 V (Note
Note:
1
The algebraic convention, where the more positive (less negative) limits designated as
maximum, is used in this datasheet for logic levels only (e.g. if - 10 V is a maximum, the
typical value is a more negative voltage).
Output short circuit conditions must maintain the total power dissipation below absolute
maximum ratings.
Test conditions are those specified by EIA-232-E and as listed above.
Driver switching characteristics
(V
DD
= 12 V, V
SS
= -12 V, V
CC
= 5 V, T
A
= 25 °C)
Value
Parameter
Propagation Delay Time, Low to
High Level Output
Propagation Delay Time, High to
Low Level Output
Test Conditions
Min.
Typ.
315
75
60
1.7
40
1.5
Max.
500
175
100
2.5
7.5
2.5
ns
ns
ns
μs
ns
μs
R
L
= 3 to 7 kΩ C
L
= 15 pF
(See
Figure 5, Figure 6)
R
L
= 3 to 7 kΩ C
L
= 15 pF
(See
Figure 5, Figure 6)
R
L
= 3 to 7 kΩ C
L
= 15 pF
(See
Figure 5, Figure 6)
R
L
= 3 to 7 kΩ C
L
= 2500 pF
(Note
R
L
= 3 to 7 kΩ C
L
= 15 pF
(See
Figure 5, Figure 6)
R
L
= 3 to 7 kΩ C
L
= 2500 pF
(Note
Unit
2
3
Table 9.
Symbol
t
PLH
t
PHL
t
TLH
Transition Time Low to High Level
Output
t
THL
Transition Time High to Low Level
Output
4
Measured between -3 V and 3 V points of output waveform (EIA-232-E conditions), all
unused inputs are tied.
7/22
STMICROELECTRONICS [ STMICROELECTRONICS ]
