HD74HC125/HD74HC126
Waveforms
•
HD74HC126
•
Waveform – 1
tr
90 %
50 %
10 %
t
PLH
90 %
50 %
tf
V
CC
10 %
t
PHL
0V
Input A
V
OH
Output Y
50 %
50 %
V
OL
•
Waveform – 2
tr
90 %
50 %
10 %
t
ZL
90 %
50 %
tf
V
CC
10 %
t
LZ
50 %
t
ZH
t
HZ
90 %
0V
V
OH
Input C
Waveform - A
10 %
V
OL
V
OH
V
OL
Waveform - B
50 %
Notes : 1. t
r
≤
6 ns, t
f
≤
6 ns
2. Input waveform : PRR
≤
1 MHz, duty cycle 50%
3. Waveform– A is for an output with internal conditions such that the
output is low except when disabled by the output control.
4. Waveform– B is for an output with internal conditions such that the
output is high except when disabled by the output control.
Rev.2.00, Oct 11, 2005 page 6 of 8