Datasheet

SN75161B, SN75162B
OCTAL GENERAL-PURPOSE INTERFACE BUS TRANSCEIVERS
SLLS005B – OCTOBER 1980 – REVISED MAY 1995
9
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
PARAMETER MEASUREMENT INFORMATION
VOLTAGE WAVEFORMS
LOAD CIRCUIT
480 Ω
200 Ω
(see Note A)
C
L
= 30 pF
Test Point
5 V
Output
Bus
Input
Terminal
See Note B
V
OH
V
OH
0 V
3 V
t
PHL
2.2 V
1.0 V
1.5 V
t
PLH
1.5 V
From (Bus)
Output Under
Test
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
= 50 Ω.
Figure 1. Terminal-to-Bus Load Circuit and Voltage Waveforms
See Note B
1.5 V
t
PLH
1.5 V
1.5 V
1.5 V
t
PHL
3 V
0 V
V
OH
V
OL
Bus
Input
Output
From (Terminal)
Output Under
Test
4.3 V
Test Point
C
L
= 30 pF
(see Note A)
240 Ω
3 kΩ
LOAD CIRCUIT
VOLTAGE WAVEFORMS
Terminal
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
= 50 Ω.
Figure 2. Bus-to-Terminal Load Circuit and Voltage Waveforms