Datasheet


  
SCAS583J − NOVEMBER 1996 − REVISED FEBRUARY 2005
8
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
PARAMETER MEASUREMENT INFORMATION
Input
(see Note D)
From Output
Under Test
C
L
= 50 pF
(see Note A)
LOAD CIRCUIT
S1
V
CC
×
2 V
Open
GND
500 Ω
500 Ω
Output
Control
Output
Waveform 1
S1 at V
CC
× 2 V
(see Note C)
Output
Waveform 2
S1 at GND
(see Note C)
V
OL
V
OH
t
PZL
t
PZH
t
PLZ
t
PHZ
1.4 V
1.4 V
3 V
0 V
1.4 V
V
OL
+ 0.3 V
1.4 V
V
OH
− 0.3 V
0 V
2.7 V
VOLTAGE WAVEFORMS
ENABLE AND DISABLE TIMES
t
PLH
/t
PHL
t
PLZ
/t
PZL
t
PHZ
/t
PZH
Open
V
CC
× 2 V
GND
TEST S1
NOTES: A. C
L
includes probe and jig capacitance.
B. Input rise and fall times are 3 ns.
C. Waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control.
Waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control.
D. Input rise and fall times are 3 ns. Pulse duration is 150 ns < t
w
< 10 µs.
E. The outputs are measured one at a time, with one transition per measurement.
t
PHL
t
PLH
VOLTAGE WAVEFORMS
PROPAGATION DELAY TIMES (B to A)
2.7 V
V
OH
V
OL
0 V
1.4 V
50% V
CC
Input
(see Note B)
Output
1.4 V
50% V
CC
B-TO-A LOAD (Totem Pole)
t
PHL
t
PLH
From
B or Y Output
Under Test
A-TO-B LOAD OR A-TO-Y LOAD (Totem Pole)
VOLTAGE WAVEFORMS MEASURED AT TP1
PROPAGATION DELAY TIMES (A to B)
2.7 V
V
OH
V
OL
0 V
500 Ω
C
L
= 50 pF
(see Note A)
TP1
V
CC
C
L
= 50 pF
(see Note A)
Sink Load
Source Load
1.4 V
V
OH
− 1.4 V
500 Ω
t
PHL
t
PLH
Output
1.4 V
V
OL
+ 1.4 V
t
w
Figure 2. Load Circuit and Voltage Waveforms