Datasheet

 
  
    
SDLS030A − DECEMBER 1983 − REVISED NOVEMBER 2003
7
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
PARAMETER MEASUREMENT INFORMATION
SERIES 54/74 AND 54S/74S DEVICES
From Output
Under Test
C
L
(see Note A)
R
L
Test Point
V
CC
LOAD CIRCUIT
1.5 V 1.5 V
High-Level
Pulse
1.5 V 1.5 V
t
w
Low-Level
Pulse
VOLTAGE WAVEFORMS
PULSE WIDTHS
NOTES: A. C
L
includes probe and jig capacitance.
B. In the examples above, the phase relationships between inputs and outputs have been chosen arbitrarily.
C. All input pulses are supplied by generators having the following characteristics: PRR ≤ 1 MHz, Z
O
= 50 Ω, and:
For Series 54/74, t
r
≤ 7 ns, t
f
≤ 7 ns.
For Series 54S/74S, t
r
≤ 2.5 ns, t
f
≤ 2.5 ns.
D. The outputs are measured one at a time with one input transition per measurement.
1.5 V 1.5 V
Input
t
PLH
In-Phase
Output
3 V
0 V
1.5 V 1.5 V
V
OH
V
OL
t
PHL
1.5 V 1.5 V
V
OH
V
OL
t
PHL
t
PLH
Out-of-Phase
Output
VOLTAGE WAVEFORMS
PROPAGATION DELAY TIMES
Figure 1. Load Circuit and Voltage Waveforms
The SN5405 is obsolete
a
nd no longer is supplie
d.