Datasheet

 
  
  
SCAS459D − NOVEMBER 1994 − REVISED OCTOBER 2003
5
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
PARAMETER MEASUREMENT INFORMATION
50% V
CC
t
PHL
t
PLH
From B Output
Under Test
A-TO-B LOAD (totem pole)
1.5 V
VOLTAGE WAVEFORMS MEASURED AT TP1
PROPAGATION DELAY TIMES (A to B)
3 V
V
OH
V
OL
V
OL
0 V
62 Ω
C
L
= 50 pF
(see Note A)
33 Ω
TP1
V
CC
C
L
= 50 pF
(see Note A)
Sink Load
Source Load
1.5 V1.5 V
V
OH
V
OL
V
OH
− 1.4 VV
OH
− 1.4 VV
OL
+ 1.4 V
62 Ω
t
PHL
t
PLH
t
f
A-TO-B LOAD (open drain)
1.5 V
VOLTAGE WAVEFORMS MEASURED AT TP1 (B SIDE)
3 V
V
OH
V
OL
0 V
TP1
V
CC
C
L
= 50 pF
(see Note A)
1.5 V
V
OL
(see Note E)
0.8 V
500 Ω
From B Output
t
r
2 V2 V
0.8 V
t
PHL
t
PLH
1.5 V
VOLTAGE WAVEFORMS
PROPAGATION DELAY TIMES (B to A)
3 V
V
OH
V
OL
V
OL
0 V
1.5 V1.5 V
Output
50% V
CC
B-TO-A LOAD (totem pole)
C
L
= 50 pF
(see Note A)
500 Ω
From A Output
Under Test
Input
(see Note C)
Output
(see Note D)
Input
(see Note F)
Input
(see Note F)
NOTES: A. CL includes probe and jig capacitance.
B. The outputs are measured one at a time with one transition per measurement.
C. Input rise and fall times are 3 ns, 150 ns < pulse duration <10 µs for both low-to-high and high-to-low transitions.
D. Slew rate is defined as 10% and 90% of the transition times.
E. Rise and fall times, open drain, are <120 ns.
F. Input rise and fall times are 3 ns.
Figure 1. Load Circuits and Voltage Waveforms