74lv126db NXP Semiconductors, 74lv126db Datasheet - Page 6

• Manufacturer Part Number: 74lv126db
• 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
nY OUTPUT
Figure 1. Input (nA, nB) to output (nY) propagation delays
Quad buffer/line driver (3-State)
= V
= V
= V
= V
nA INPUT
= 1.5 V at V
= 0.5
and V
OL
OL
OH
OH
HIGH-to-OFF
OFF-to-HIGH
GND
V
LOW-to-OFF
OFF-to-LOW
V
nOE INPUT
OL
OH
V
+ 0.3 V at V
+ 0.1
OUTPUT
OUTPUT
– 0.3 V at V
– 0.1
OH
I
Figure 2. 3-state enable and disable times.
V
CC
GND
V
V OH
GND
V
are the typical output voltage drop that occur with the
OL
CC
CC
V I
at V
V
V
CC
CC
CC
2.7 V and
CC
CC
at V
at V
V
enabled
outputs
M
V
2.7 V and
t
M
CC
PHZ
CC
2.7 V and
2.7 V and
V
M
< 2.7 V and
< 2.7 V and
t
PHL
t PLZ
V
3.6 V;
X
V
Y
4.5 V;
3.6 V;
3.6 V;
disabled
outputs
4.5 V.
4.5 V.
t
PZH
t
PZL
V
M
V
M
SV00488
outputs
enabled
t
SV00487
PLH
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
74LV126
SV00896
R
R
L
L
= 1k
= 1k
2 * V
Open
GND
CC