Datasheet

PARAMETER MEASUREMENT INFORMATION
V
OD
V
OC
R
L
2
R
L
2
0 V or 3 V
Z
D
DE at 3 V
Y
V
OD
V
test
R1
375 Ω
0 V or 3 V
Z
D
DE at 3 V
R2
375 Ω
V
test
Y
R
L
= 60 Ω
–7 V < V
test
< 12 V
0 V
3 V
t
t(OD)
t
t(OD)
1.5 V
t
d(OD)
50%
Output
Input
TEST CIRCUIT VOLTAGE WAVEFORMS
t
d(OD)
R
L
= 54 Ω
C
L
= 50 pF
(see Note B)
Output
Generator
(see Note A)
50 Ω
1.5 V 1.5 V
50%
≈ 2.5 V
≈ – 2.5 V
Z
Y
DE at 3 V
90%
10%
10%
90%
NOTES: A. The input pulse is supplied by a generator having the following characteristics: PRR > 1 MHz, 50% duty cycle, t
r
≤ 6 ns, t
f
≤ 6 ns,
Z
O
= 50 Ω.
B. C
L
includes probe and jig capacitance.
SN55LBC180
SN65LBC180
SN75LBC180
SLLS174G – FEBRUARY 1994 – REVISED APRIL 2009 ................................................................................................................................................... www.ti.com
Figure 1. Differential and Common-Mode Output Voltages
Figure 2. Driver V
OD
Test Circuit
Figure 3. Driver Test Circuit and Differential Output Delay and Transition Time Voltage Waveforms
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