Datasheet

SN54ABT240, SN74ABT240A
OCTAL BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SCBS098I – JANUARY 1991 – REVISED JUNE 2002
4
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
switching characteristics over recommended ranges of supply voltage and operating free-air
temperature, C
L
= 50 pF (unless otherwise noted) (see Figure 1)
SN54ABT240
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
V
CC
= 5 V,
T
A
= 25°C
MIN MAX
UNIT
MIN TYP MAX
t
PLH
A
Y
1 2.9 4.3 0.8 5.5
ns
t
PHL
A
Y
1.6 3.1 4.5 1 5.5
ns
t
PZH
OE
Y
1.1 3.1 5.8 0.8 7.5
ns
t
PZL
OE
Y
1.1 2.7 6.2 0.8 7.7
ns
t
PHZ
OE
Y
1.8 4.6 5.9 1.7 7
ns
t
PLZ
OE
Y
1.6 4 5.9 1.3 7.2
ns
switching characteristics over recommended ranges of supply voltage and operating free-air
temperature, C
L
= 50 pF (unless otherwise noted) (see Figure 1)
SN74ABT240A
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
V
CC
= 5 V,
T
A
= 25°C
MIN MAX
UNIT
MIN TYP MAX
t
PLH
A
Y
1 2.9 4.1 1 4.8
ns
t
PHL
A
Y
1.6 3.1 4.6 1.6 4.8
ns
t
PZH
OE
Y
1.1 3.1 4.7 1.1 5.2
ns
t
PZL
OE
Y
1.1 2.7 5.8 1.1 6.2
ns
t
PHZ
OE
Y
1.8 4.6 5.7 1.8 6.4
ns
t
PLZ
OE
Y
1.6 4 5.4 1.6 5.8
ns