Philips Semiconductors
Product specification
Octal buffer/line driver (3-State)
74ABT244
LOGIC SYMBOL
2 1A0
4 1A1
6
8
1A2
1A3
1Y0
1Y1
1Y2
1Y3
18
16
LOGIC SYMBOL (IEEE/IEC)
1
EN
2
14
12
4
6
8
18
16
14
12
1 1OE
11
13
15
17
19
2A3
2A2
2A1
2A0
2OE
2Y3
2Y2
2Y1
2Y0
9
7
5
3
19
EN
11
13
15
17
9
7
5
3
SA00149
SA00150
FUNCTION TABLE
INPUTS
1OE
L
L
H
H
L
X
Z
=
=
=
=
1An
L
H
X
2OE
L
L
H
2An
L
H
X
OUTPUTS
1Yn
L
H
Z
2Yn
L
H
Z
High voltage level
Low voltage level
Don’t care
High impedance “off ” state
ABSOLUTE MAXIMUM RATINGS
1, 2
SYMBOL
V
CC
I
IK
V
I
I
OK
V
OUT
I
OUT
T
stg
PARAMETER
DC supply voltage
DC input diode current
DC input voltage
3
DC output diode current
DC output voltage
3
DC output current
Storage temperature range
V
O
< 0
output in Off or High state
output in Low state
V
I
< 0
CONDITIONS
RATING
–0.5 to +7.0
–18
–1.2 to +7.0
–50
–0.5 to +5.5
128
–65 to 150
UNIT
V
mA
V
mA
V
mA
°C
NOTES:
1. Stresses beyond those listed may cause permanent damage to the device. These are stress ratings only and functional operation of the
device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to
absolute-maximum-rated conditions for extended periods may affect device reliability.
2. The performance capability of a high-performance integrated circuit in conjunction with its thermal environment can create junction
temperatures which are detrimental to reliability. The maximum junction temperature of this integrated circuit should not exceed 150°C.
3. The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
1998 Jan 16
3
PHILIPS [ NXP SEMICONDUCTORS ]
