74ABT540 Philips Semiconductors, 74ABT540 Datasheet - Page 5

• Manufacturer Part Number: 74ABT540
• Description: Octal buffer/ inverting 3-State
• Manufacturer: Philips Semiconductors

Philips Semiconductors
AC CHARACTERISTICS
GND = 0V; t
AC WAVEFORMS
V
TEST CIRCUIT AND WAVEFORMS
1998 Jan 16
Waveform 1. Waveforms Showing the Input (An) to Output (Yn)
M
SYMBOL
Octal buffer, inverting (3-State)
Yn OUTPUT
= 1.5V, V
An INPUT
t
t
t
t
t
t
PLH
PHL
PZH
PHZ
PZL
PLZ
DEFINITIONS
C
From Output
Under Test
L
=
R
IN
= t
Propagation delay
An to Yn
Output enable time
to High and Low level
Output disable time
from High and Low level
C
= GND to 3.0V
Load capacitance includes jig and probe capacitance;
see AC CHARACTERISTICS for value.
L
F
= 50 pF
= 2.5ns; C
V
M
t
Propagation Delays
PHL
PARAMETER
t
t
PHZ
PLZ
TEST
t
L
pd
/t
/t
PZL
PZH
= 50pF, R
V
500
M
Load Circuit
500
open
open
7 V
L
S1
= 500
S1
V
M
7 V
GND
t
SA00012
PLH
Open
WAVEFORM
SA00200
V
M
1
2
2
5
Min
1.0
1.0
1.1
1.1
1.5
1.2
OUTPUT
OUTPUT
Waveform 2. Waveforms Showing the 3-State Output Enable
INPUT
Yn
Yn
OEn
T
V
amb
CC
Typ
= +5.0V
2.9
3.1
4.1
4.6
3.6
2.9
= +25 C
V
M
t
t
PZL
PZH
Max
4.1
4.3
4.9
5.8
6.8
5.7
LIMITS
and Disable Times
V
V
M
M
T
amb
V
Min
1.0
1.0
1.1
1.1
1.5
1.2
CC
= –40 C to +85 C
= +5.0V 0.5V
V
M
t
t
PLZ
PHZ
Max
4.8
4.8
5.9
6.4
7.3
6.2
74ABT540
Product specification
3.5V
V
V
V
V
0V
UNIT
OL
OL
OH
OH
SA00201
ns
ns
ns
+ 0.3V
– 0.3V