Switching Characteristics
V
CC
= 5V, T
A
= 25˚C
Symbol
t
PLH
t
PHL
t
LZ
t
HZ
t
ZL
t
ZH
ENABLE to Output
C
L
= 15 pF
ENABLE to Output
C
L
= 5 pF
Parameter
Input to Output
Conditions
C
L
= 15 pF
DS26LS32/DS26LS33
Min
Typ
17
17
20
15
15
15
Max
25
25
30
22
22
22
DS26LS32A/DS26LS33A
Min
Typ
23
23
15
20
14
15
Max
35
35
30
25
22
22
ns
ns
ns
ns
ns
ns
Units
AC Test Circuit and Switching Time Waveforms
Load Test Circuit for TRI-STATE
®
Outputs
DS005255-3
Propagation Delay
(Notes 7, 9)
Enable and Disable Times
(Notes 8, 9)
DS005255-4
DS005255-5
Note 7:
Diagram shown for ENABLE low.
Note 8:
S1 and S2 of load circuit are closed except where shown.
Note 9:
Pulse generator for all pulses: Rate = 1.0 MHz; Z
O
= 50Ω; t
r
≤
6 ns; t
f
≤
6.0 ns.
Typical Applications
Two-Wire Balanced Interface — RS-422
DS005255-6
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