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