HD74HC245
Waveforms
•
Waveform – 1
t
r
90 %
50 %
10 %
t
PLH
90 %
Output Y
50 %
10 %
t
TLH
90 %
50 %
10 %
t
PHL
90 %
50 %
10 %
t
THL
t
f
V
CC
0V
Input A
V
OH
V
OL
•
Waveform – 2
90 %
Input G
t
f
t
r
90 %
50 %
10 %
t
LZ
V
CC
0V
V
OH
50 %
10 %
t
ZL
Waveform – A
t
ZH
Waveform – B
50 %
10 %
t
HZ
90 %
V
OL
V
OH
V
OL
50 %
Notes : 1. Input waveform : PRR
≤
1 MHz, duty cycle 50%, t
r
≤
6 ns, t
f
≤
6 ns
2. Waveform– A is for an output with internal conditions such that the
output is low except when disabled by the output control.
3. Waveform– B is for an output with internal conditions such that the
output is high except when disabled by the output control.
4. The output are measured one at a time with one transition per measurement.
Rev.2.00 Jan 31, 2006 page 5 of 7
RENESAS [ RENESAS TECHNOLOGY CORP ]
