Datasheet

SN65ALS180, SN75ALS180
DIFFERENTIAL DRIVER AND RECEIVER PAIRS
SLLS052G – AUGUST 1987 – REVISED APRIL 2003
8
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
PARAMETER MEASUREMENT INFORMATION
0 V
3 V
t
t(OD)
t
t(OD)
t
d(ODH)
Output
Input
TEST CIRCUIT VOLTAGE WAVEFORMS
t
d(ODL)
R
L
= 54 Ω
C
L
= 50 pF
(see Note A)
Output
3 V
Generator
(see Note B)
50 Ω
≈2.5 V
≈–2.5 V
NOTES: A. C
L
includes probe and jig capacitance.
B. 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
=50Ω.
1.5 V 1.5 V
50%
90%
50%
10%
10%
Figure 3. Driver Test Circuit and Voltage Waveforms
TEST CIRCUIT VOLTAGE WAVEFORMS
V
OH
t
PHZ
t
PZH
0 V
3 V
Output
Input
Output
S1
0 V or 3 V
R
L
= 110 Ω
50 Ω
V
off
≈ 0 V
0.5 V
Generator
(see Note B)
C
L
= 50 pF
(see Note A)
NOTES: A. C
L
includes probe and jig capacitance.
B. 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
=50Ω.
1.5 V 1.5 V
2.3 V
Figure 4. Driver Test Circuit and Voltage Waveforms
VOLTAGE WAVEFORMS
V
OL
t
PLZ
t
PZL
5 V
0.5 V
0 V
3 V
Output
Input
NOTES: A. C
L
includes probe and jig capacitance.
B. 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
=50Ω.
TEST CIRCUIT
Output
S1
0 V or 3 V
R
L
= 110 Ω
50 Ω
Generator
(see Note B)
C
L
= 50 pF
(see Note A)
5 V
1.5 V 1.5 V
2.3 V
Figure 5. Driver Test Circuit and Voltage Waveforms