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ST75185C
Electrical characteristics
7/22
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).
2
Output short circuit conditions must maintain the total power dissipation below absolute
maximum ratings.
3
Test conditions are those specified by EIA-232-E and as listed above.
4
Measured between -3 V and 3 V points of output waveform (EIA-232-E conditions), all
unused inputs are tied.
Table 8.
Driver electrical characteristics over operating free-air temperature range
(VDD = 9 V, VSS = -9 V, VCC = 5 V, unless otherwise specified)
Symbol
Parameter
Test conditions
Value
Unit
Min.
Typ.
Max.
VOH
High level output voltage
VIL = 0.8 V, RL = 3kΩ
(See Figure 3)
67.5
V
VOL
Low level output voltage
(Note 3)
VIH = 1.9 V, RL = 3kΩ
(See Figure 3)
-7.5
-6
V
IIH
High level input current
VI = 5 V (See Figure 4)10
µA
IIL
Low level input current
VI = 0 V (See Figure 4)
−1.6
mA
IOS(H)
High level short circuit
output current (Note 4)
VIL = 0.8 V, VO = 0 V
(See Figure 3)
-4.5
−12
−19.5
mA
IOS(L)
Low level short circuit output
current
VIH = 2 V
VO = 0 V
(See Figure 3)
4.5
12
19.5
mA
RO
Output resistance
VDD = VSS = VCC = 0 V
VO = -2 to 2 V (Note 3)
300
Ω
Table 9.
Driver switching characteristics
(VDD = 12 V, VSS = -12 V, VCC = 5 V, TA = 25 °C)
Symbol
Parameter
Test Conditions
Value
Unit
Min.
Typ.
Max.
tPLH
Propagation Delay Time, Low to
High Level Output
RL = 3 to 7 kΩ CL = 15 pF
(See Figure 5, Figure 6)
315
500
ns
tPHL
Propagation Delay Time, High to
Low Level Output
RL = 3 to 7 kΩ CL = 15 pF
(See Figure 5, Figure 6)
75
175
ns
tTLH
Transition Time Low to High Level
Output
RL = 3 to 7 kΩ CL = 15 pF
(See Figure 5, Figure 6)
60
100
ns
RL = 3 to 7 kΩ CL = 2500 pF
(Note 4, Figure 5, Figure 6)
1.7
2.5
μs
tTHL
Transition Time High to Low Level
Output
RL = 3 to 7 kΩ CL = 15 pF
(See Figure 5, Figure 6)
40
7.5
ns
RL = 3 to 7 kΩ CL = 2500 pF
(Note 4, Figure 5, Figure 6)
1.5
2.5
μs


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