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SN74LVC244A_16 Datasheet, PDF (4/34 Pages) Texas Instruments – SN74LVC244A Octal Buffer or Driver With 3-State Outputs
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SN74LVC244A
SCAS414AA – NOVEMBER 1992 – REVISED JUNE 2016
NAME
1A1
1A2
1A3
1A4
1OE
1Y1
1Y2
1Y3
1Y4
2A1
2A2
2A3
2A4
2OE
2Y1
2Y2
2Y3
2Y4
GND
VCC
DB, DGV,
DW, N, NS,
PW, and
RGY
2
4
6
8
1
18
16
14
12
11
13
15
17
19
9
7
5
3
10
20
PIN
ZQN
A1
B1
C1
D1
A2
B4
C4
D4
E4
E3
D2
C3
B2
A2
E2
D3
C2
B3
E1
A3
RWP
1
3
5
7
20
17
15
13
11
10
12
14
16
18
8
6
4
2
9
19
Pin Functions
TYPE
I
Input
I
Input
I
Input
I
Input
I
Output enable
O
Output
O
Output
O
Output
O
Output
I
Input
I
Input
I
Input
I
Input
I
Output enable
O
Output
O
Output
O
Output
O
Output
—
Ground
—
Power pin
DESCRIPTION
www.ti.com
6 Specifications
6.1 Absolute Maximum Ratings
over operating free-air temperature range (unless otherwise noted)(1)
MIN
MAX UNIT
VCC Supply voltage range
VI
Input voltage range(2)
VO
Voltage range applied to any output in the high-impedance or power-off state(2)
VO
Voltage range applied to any output in the high or low state(2)(3)
IIK
Input clamp current
VI < 0
IOK Output clamp current
VO < 0
IO
Continuous output current
Continuous current through VCC or GND
Ptot Power dissipation
TA = –40°C to +125°C(4)(5)
Tstg Storage temperature
TJ
Junction temperature
–0.5
6.5 V
–0.5
6.5 V
–0.5
6.5 V
–0.5
VCC + 0.5
V
–50 mA
–50 mA
±50 mA
±100 mA
500 mW
–65
150 °C
150 °C
(1) Stresses beyond those listed under Absolute Maximum Ratings 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 input and output negative-voltage ratings may be exceeded if the input and output current ratings are observed.
(3) The value of VCC is provided in the Recommended Operating Conditions table.
(4) For the DW package: above 70°C the value of Ptot derates linearly with 8 mW/K.
(5) For the DB, DGV, N, NS, and PW packages: above 60°C the value of Ptot derates linearly with 5.5 mW/K.
4
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