Datasheet

SN75C185
LOW-POWER MULTIPLE DRIVERS AND RECEIVERS
SLLS065F – AUGUST 1989 – REVISED JANUARY 2000
8
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
PARAMETER MEASUREMENT INFORMATION
V
I
I
OS(L)
–I
OS(H)
Figure 4. Receiver Test Circuit for I
OS(H)
and I
OS(L)
V
IT
, V
I
I
OL
V
OH
–I
OH
V
OL
Figure 5. Receiver Test Circuit for V
IT
, V
OH
, and V
OL
4 V
0 V
50% 50%
Input
t
PHL
t
PLH
90%
50%
10%
50%
10%
90%
t
THL
t
TLH
V
OH
V
OL
TEST CIRCUIT VOLTAGE WAVEFORMS
Output
NOTES: A. C
L
includes probe and jig capacitance.
B. The pulse generator has the following characteristics: t
w
= 25 µs, PRR = 20 kHz, Z
O
= 50 Ω, t
r
= t
f
< 50 ns.
Pulse
Generator
(See Note B)
R
L
Input
Output
C
L
(see Note A)
Figure 6. Receiver Propagation and Transition Times