SN75ALS1177_08 Datasheet, PDF (9/16 Pages) Texas Instruments – DUAL DIFFERENTIAL DRIVERS AND RECEIVERS

SN75ALS1177, SN75ALS1178
DUAL DIFFERENTIAL DRIVERS AND RECEIVERS
SLLS154B – MARCH 1993 – REVISED FEBRUARY 2001
PARAMETER MEASUREMENT INFORMATION
VCC
3 V or 0 V
Generator
(see Note B)
50 Ω
RL = 500 Ω
S1
Output
CL
(see Note A)
Input
Output
1.5 V
tPZL
2.3 V
3V
1.5 V
0V
tPLZ
0.5 V
0V
VOL
DRIVER TEST CIRCUIT
DRIVER VOLTAGE WAVEFORMS
NOTES: A. CL includes probe and jig capacitance.
B. The pulse generator has the following characteristics: PRR ≤ 1 MHz, 50% duty cycle, tr ≤ 10 ns, tf ≤ 10 ns.
Figure 5. Driver Enable and Disable Times
Generator
(see Note B)
50 Ω
0V
0V
(SN75ALS1177 only)
Output
CL
(see Note A)
1 kΩ
1 kΩ
VCC
1N916 or
Equivalent
RECEIVER TEST CIRCUIT
Input
Output
0V
tPHL
1.5 V
0V
tPLH
1.5 V
DRIVER VOLTAGE WAVEFORMS
2.5 V
–2.5 V
VOH
VOL
NOTES: A. CL includes probe and jig capacitance.
B. The pulse generator has the following characteristics: PRR ≤ 1 MHz, 50% duty cycle, tr ≤ 10 ns, tf ≤ 10 ns.
Figure 6. Receiver Propagation Delay Times
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