74lv125db NXP Semiconductors, 74lv125db Datasheet - Page 6

• Manufacturer Part Number: 74lv125db
• Description: Quad Buffer/line Driver 3-state
• Manufacturer: NXP Semiconductors

Philips Semiconductors
AC WAVEFORMS
V
V
V
output load.
V
V
V
V
1998 Apr 28
M
M
OL
X
X
Y
Y
Quad buffer/line driver (3-State)
= V
= V
= V
= V
= 1.5 V at V
= 0.5
and V
OFF-to-HIGH
Figure 1. Input (nA) to output (nY) propagation delays
HIGH-to-OFF
LOW-to-OFF
OFF-to-LOW
OL
OL
OH
OH
nOE Input
OUTPUT
OUTPUT
V OH
+ 0.3 V at V
+ 0.1
V OL
OH
– 0.3 V at V
– 0.1 V
V
nY OUTPUT
GND
GND
Figure 2. 3-state enable and disable times.
V CC
CC
nA INPUT
are the typical output voltage drop that occur with the
V OH
V I
V OL
CC
at V
GND
V
CC
CC
V
and output transition times.
CC
enabled
outputs
2.7 V and
l
CC
at V
CC
at V
V M
t PLZ
t PHZ
2.7 V and
CC
CC
2.7 V and
2.7 V and
< 2.7 V and
< 2.7 V and
V M
V X
V Y
3.6 V;
V M
t PHL
4.5 V.
disabled
outputs
3.6 V;
3.6 V;
4.5 V.
4.5 V.
t PZL
t PZH
V M
SV00459
V M
SV00458
t PLH
outputs
enabled
6
TEST CIRCUIT
GENERATOR
SWITCH POSITION
t
t
t
PLH/
PLZ/
PHZ/
TEST
DEFINITIONS
R
C
R
PULSE
T
L
L
t
t
= Load resistor
= Load capacitance includes jig and probe capacitiance.
t
= Termination resistance should be equal to Z
PHL
PZL
PZH
Figure 3. Load circuitry for switching times.
2 * V
Open
GND
S
1
CC
V
Test Circuit for Outputs
I
R
T
D.U.T.
w 4.5V
V
2.7–3.6V
CC
< 2.7V
V
CC
V
O
C
OUT
2.7V
V
V
L
V
CC
CC
I
of pulse generators.
Product specification
50 pF
74LV125
SV00896
R
R
L
L
= 1k
= 1k
2 * V
Open
GND
CC