Datasheet

www.ti.com
Electrical Characteristics
Switching Characteristics
SN74LVC244A
OCTAL BUFFER/DRIVER
WITH 3-STATE OUTPUTS
SCAS414X – NOVEMBER 1992 – REVISED MARCH 2005
over recommended operating free-air temperature range (unless otherwise noted)
T
A
= 25°C –40 TO 85°C –40 TO 125°C
PARAMETER TEST CONDITIONS V
CC
UNIT
MIN TYP MAX MIN MAX MIN MAX
V
CC
– V
CC
– V
CC
–
I
OH
= –100 µ A 1.65 V to 3.6 V
0.2 0.2 0.3
I
OH
= –4 mA 1.65 V 1.29 1.2 1.05
I
OH
= –8 mA 2.3 V 1.9 1.7 1.55
V
OH
V
2.7 V 2.2 2.2 2.05
I
OH
= –12 mA
3 V 2.4 2.4 2.25
I
OH
= –24 mA 3 V 2.3 2.2 2
I
OL
= 100 µ A 1.65 V to 3.6 V 0.1 0.2 0.3
I
OL
= 4 mA 1.65 V 0.24 0.45 0.6
V
OL
I
OL
= 8 mA 2.3 V 0.3 0.7 0.75 V
I
OL
= 12 mA 2.7 V 0.4 0.4 0.6
I
OL
= 24 mA 3 V 0.55 0.55 0.8
I
I
V
I
= 5.5 V or GND 3.6 V ±1 ±5 ±20 µ A
I
off
V
I
or V
O
= 5.5 V 0 ±1 ±10 ±20 µ A
I
OZ
V
O
= 0 to 5.5 V 3.6 V ±1 ±10 ±20 µ A
V
I
= V
CC
or GND 1 10 40
I
CC
I
O
= 0 3.6 V µ A
3.6 V ≤ V
I
≤ 5.5 V
(1)
1 10 40
One input at V
CC
– 0.6 V,
∆ I
CC
2.7 V to 3.6 V 500 500 5000 µ A
Other inputs at V
CC
or GND
C
i
V
I
= V
CC
or GND 3.3 V 4 pF
C
o
V
O
= V
CC
or GND 3.3 V 5.5 pF
(1) This applies in the disabled state only.
over recommended operating free-air temperature range (unless otherwise noted) (see Figure 1 )
T
A
= 25°C –40 TO 85°C –40 TO 125°C
FROM TO
PARAMETER V
CC
UNIT
(INPUT) (OUTPUT)
MIN TYP MAX MIN MAX MIN MAX
1.5 V 1 7 14.4 1 14.9 1 16.4
1.8 V ± 0.15 V 1 5.9 10.4 1 10.9 1 12.4
t
pd
A Y 2.5 V ± 0.2 V 1 4.2 7.4 1 7.9 1 10 ns
2.7 V 1 4.2 6.7 1 6.9 1 8.2
3.3 V ± 0.3 V 1.5 3.9 5.7 1.5 5.9 1.5 7.2
1.5 V 1 8.3 17.8 1 18.3 1 19.8
1.8 V ± 0.15 V 1 6.4 12.1 1 12.6 1 14.1
t
en
OE Y 2.5 V ± 0.2 V 1 4.6 9.1 1 9.6 1 11.7 ns
2.7 V 1 5 8.4 1 8.6 1 10.3
3.3 V ± 0.3 V 1.5 4.5 7.4 1.5 7.6 1.5 9.4
1.5 V 1 7.2 15.6 1 16.1 1 17.6
1.8 V ± 0.15 V 1 5.8 11.6 1 12.1 1 13.6
t
dis
OE Y 2.5 V ± 0.2 V 1 3.7 7.3 1 7.8 1 9.9 ns
2.7 V 1 3.8 6.6 1 6.8 1 8.6
3.3 V ± 0.3 V 1.5 3.8 6.3 1.5 6.5 1.5 8
t
sk(o)
3.3 V ± 0.3 V 1 1.5 ns
5