HD74LV1G125A
Test Circuit
V
CC
V
CC
See Function Table
Input
Output
1 k
Ω
S1
C
L
=
15 or 50 pF
Pulse Generator
Z
OUT
= 50
Ω
*1
OPEN
See under table
GND
TEST
t
PLH
/ t
PHL
t
ZH
/ t
HZ
t
ZL
/ t
LZ
Note: 1. C
L
includes probe and jig capacitance.
S1
OPEN
GND
V
CC
Waveform
•
Waveforms - 1
t
r
90 %
50%
10 %
t
PLH
90 %
50%
10 %
t
PHL
t
f
V
CC
GND
Input A
V
OH
Output Y
50%
50%
V
OL
•
Waveforms - 2
90 %
50%
t
f
t
r
90 %
50%
10 %
t
ZL
10 %
t
LZ
50%
t
ZH
t
HZ
50%
V
OH
– 0.3 V
V
CC
GND
V
CC
Input
OE
Waveform - A
V
OL
+ 0.3 V
V
OL
V
OH
GND
Waveform - B
Notes: 1. Input waveform : PRR
≤
1 MHz, Zo = 50
Ω,
t
r
≤
3 ns, t
f
≤
3 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.
REJ03D0071-0700 Rev.7.00, Mar 21, 2008
Page 6 of 7