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74ABT240DB,118

P1-P3P4-P5
Philips Semiconductors Product specification
74ABT240Octal inverting buffer (3-State)
1996 Sep 10
5
AC CHARACTERISTICS
GND = 0V; t
R
= t
F
= 2.5ns; C
L
= 50pF, R
L
= 500Ω
LIMITS
SYMBOL PARAMETER WAVEFORM
T
amb
= +25°C
V
CC
= +5.0V
T
amb
= –40°C to +85°C
V
CC
= +5.0V ±0.5V
UNIT
Min Typ Max Min Max
t
PLH
t
PHL
Propagation delay
nAx to nY
x
1
1.0
1.6
2.7
3.5
4.1
4.3
1.0
1.6
4.8
4.8
ns
t
PZH
t
PZL
Output enable time
to High and Low level
2
1.1
1.1
3.1
4.2
4.7
5.8
1.1
1.1
5.2
6.2
ns
t
PHZ
t
PLZ
Output disable time
from High and Low level
2
1.8
1.6
3.7
3.0
5.7
5.4
1.8
1.6
6.4
5.8
ns
AC WAVEFORMS
V
M
= 1.5V, V
IN
= GND to 3.0V
nAx INPUT
V
M
V
M
nYx OUTPUT
V
M
V
M
t
PHL
t
PLH
SA00037
Waveform 1. Waveforms Showing the Input (nAx) to
Output (nY
x) Propagation Delays
nOE INPUT
V
M
V
M
t
PZH
t
PHZ
nYx OUTPUT
V
OH
V
M
V
M
nYx OUTPUT
V
OL
t
PZL
t
PLZ
3.5V
0V
V
OL
+ 0.3V
V
OH
– 0.3V
SA00017
Waveform 2. Waveforms Showing the 3-State Output
Enable and Disable Times
Philips Semiconductors Product specification
74ABT240Octal inverting buffer (3-State)
1996 Sep 10
6
TEST CIRCUIT AND WAVEFORMS
PULSE
GENERATOR
R
T
V
IN
V
OUT
C
L
R
L
V
CC
R
L
7.0V
Test Circuit for 3-State Outputs
V
M
V
M
t
W
AMP (V)
NEGATIVE
PULSE
10% 10%
90%
90%
0V
V
M
V
M
t
W
AMP (V)
POSITIVE
PULSE
90% 90%
10%
10%
0V
t
THL
(t
F
)
t
TLH
(t
R
)t
THL
(t
F
)
t
TLH
(t
R
)
V
M
= 1.5V
Input Pulse Definition
DEFINITIONS
R
L
= Load resistor; see AC CHARACTERISTICS for value.
C
L
= Load capacitance includes jig and probe capacitance;
see AC CHARACTERISTICS for value.
R
T
= Termination resistance should be equal to Z
OUT
of
pulse generators.
INPUT PULSE REQUIREMENTS
FAMILY
Amplitude Rep. Rate t
W
t
R
t
F
74ABT 3.0V 1MHz 500ns 2.5ns 2.5ns
SWITCH POSITION
TEST SWITCH
t
PLZ
closed
t
PZL
closed
All other open
SA00012
D.U.T.
P1-P3P4-P5

74ABT240DB,118

Mfr. #:
Buy 74ABT240DB,118
Manufacturer:
NXP Semiconductors
Description:
Buffers & Line Drivers OCT BUFFER INV 3-S
Lifecycle:
New from this manufacturer.
Delivery:
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