Datasheet

SN75C185
LOW-POWER MULTIPLE DRIVERS AND RECEIVERS
SLLS065F – AUGUST 1989 – REVISED JANUARY 2000
7
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
PARAMETER MEASUREMENT INFORMATION
I
OS(L)
–I
OS(H)
V
I
V
O
V
DD
or GND
V
SS
or GND
R
L
= 3 kΩ
(for V
OH
and V
OL
tests only)
Figure 1. Driver Test Circuit
for V
OH
, V
OL
, I
OS(H)
, and I
OS(L)
–I
IL
I
IH
V
I
V
I
Figure 2. Driver Test Circuit for I
IH
and I
IL
3 V
0 V
1.5 V 1.5 V
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.
C
L
(see Note A)
R
L
Input
Output
Pulse
Generator
(See Note B)
Figure 3. Driver Test Circuit and Voltage Waveforms