SNLS093C – APRIL 1999 – REVISED APRIL 2013
Switching Characteristics
(1)
T
A
= 25°C
Symbol
t
PHL
t
PLH
t
r
, t
f
t
PHL
t
PLH
t
r
t
f
(1)
Parameter
Propagation Delay High to Low
Propagation Delay Low to High
Output Slew Rate
(3)
Conditions
R
L
= 3 kΩ, C
L
= 50 pF
3 Figure 4)
Min
Typ
(2)
60
240
50
Max
350
350
Units
ns
ns
ns
DRIVER CHARACTERISTICS
RECEIVER CHARACTERISTICS
Propagation Delay High to Low
Propagation Delay Low to High
Rise Time
Fall Time
R
L
= 1.5 kΩ, C
L
= 15 pF
(includes fixture plus probe),
5 Figure 6)
150
240
87
40
350
350
175
100
ns
ns
ns
ns
(2)
(3)
Current into device pins is defined as positive. Current out of device pins is defined as negative. All voltages are referenced to ground
unless otherwise specified. For current, minimum and maximum values are specified as an absolute value and the sign is used to
indicate direction. For voltage logic levels, the more positive value is designated as maximum. For example, if
−6V
is a maximum, the
typical value (−6.8V) is more negative.
All typicals are given for: V
CC
= +5.0V, V
+
= +12.0V, V
−
=
−12V,
T
A
= +25°C.
Refer to typical curves. Driver output slew rate is measured from the +3.0V to the
−3.0V
level on the output waveform. Inputs not under
test are connected to V
CC
or GND. Slew rate is determined by load capacitance. To comply with a 30 V/μs maximum slew rate, a
minimum load capacitance of 390 pF is recommended.
Parameter Measurement Information
Generator characteristics for driver input: f = 64 kHz (128 kbits/sec), t
r
= t
f
< 10 ns, V
IH
= 3V, V
IL
= 0V, duty cycle =
50%.
Figure 3. Driver Propagation Delay and Transition Time Test Circuit
Figure 4. Driver Propagation Delay and Transition Time Waveforms Slew Rate (SR) = 6V/(t
r
or t
f
)
Generator characteristics for receiver input: f = 64 kHz (128 kbits/sec), t
r
= t
f
= 200 ns, V
IH
= 3V, V
IL
=
−3V,
duty cycle
= 50%.
Figure 5. Receiver Propagation Delay and Transition Time Test Circuit
4
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