Datasheet

V
OD
0 V or 3 V
Z
D
Y
V
OC
27
Ω
27
Ω
V
OD
V
(test )
R1
375 Ω
0 V or 3 V
Z
D
R2
375 Ω
V
(test )
Y
R
L
= 60 Ω
−7 V < V
(test)
< 12 V
SN65LBC179A
SN75LBC179A
www.ti.com SLLS377D –MAY 2000– REVISED SEPTEMBER 2011
RECEIVER SECTION
RECEIVER ELECTRICAL CHARACTERISTICS
over recommended operating conditions (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
V
IT+
Positive-going input threshold voltage I
O
= –8 mA 0.2
V
V
IT–
Negative-going input threshold voltage –0.2
I
O
= 8 mA
V
hys
Hysteresis voltage ( V
IT+
– V
IT–
) 50 mV
V
OH
High-level output voltage V
ID
= 200 mV, I
OH
= –8 mA, See Figure 1 4 4.9 V
V
OL
Low-level output voltage V
ID
= –200 mV, I
OL
= 8 mA, See Figure 1 0.1 0.8 V
V
IH
= 12 V, V
CC
= 5 V 0.4 1
V
IH
= 12 V, V
CC
= 0 0.5 1
I
I
Bus input current Other input at 0 V mA
V
IH
= –7 V, V
CC
= 5 V –0.8 –0.4
V
IH
= –7 V, V
CC
= 0 –0.8 –0.3
RECEIVER SWITCHING CHARACTERISTICS
over recommended operating conditions (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
t
PLH
Propagation delay time, low-to-high-level output 7 13 20 ns
t
PHL
Propagation delay time, high-to-low-level output 7 13 20 ns
V
ID
= –1.5 V to 1.5 V, See Figure 4
t
sk(p)
Pulse skew ( | t
PLH
– t
PHL
| ) 0.5 1.5 ns
t
r
Rise time, output 2.1 3.3 ns
t
f
Fall time, output See Figure 4 2.1 3.3 ns
PARAMETER MEASURMENT INFORMATION
Figure 1. Driver V
OD
and V
OC
Figure 2. Driver V
OD
With Common-Mode Loading
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