2000 Fairchild Semiconductor Corporation
DS006106
www.fairchildsemi.com
September 1986
Revised March 2000
DM74AS08 Quad
2-
In
put AND
Gate
DM74AS08
Quad 2-Input AND Gate
General Description
This device contains four independent gates, each of which
performs the logic AND function.
Features
s
Switching specifications at 50 pF
s
Switching specifications guaranteed over full
temperature and V
CC
range
s
Advanced oxide-isolated, ion-implanted Schottky
TTL process
s
Functionally and pin for pin compatible with Schottky,
low power Schottky, and advanced low power Schottky
TTL counterpart
s
Improved AC performance over Schottky, low power
Schottky and advanced low power Schottky
counterparts
Ordering Code:
Devices also available in Tape and Reel. Specify by appending the suffix letter "X" to the ordering code.
Connection Diagram
Function Table
Y
=
AB
H
=
HIGH Logic Level
L
=
LOW Logic Level
Order Number
Package Number
Package Description
DM74AS08M
M14A
14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow
DM74AS08N
N14A
14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
Inputs
Output
A
B
Y
L
L
L
L
H
L
H
L
L
H
H
H
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2
DM
74
A
S
08
Absolute Maximum Ratings
(Note 1)
Note 1: The "Absolute Maximum Ratings" are those values beyond which
the safety of the device cannot be guaranteed. The device should not be
operated at these limits. The parametric values defined in the Electrical
Characteristics tables are not guaranteed at the absolute maximum ratings.
The Recommended Operating Conditions" table will define the conditions
for actual device operation.
Recommended Operating Conditions
Electrical Characteristics
over recommended operating free air temperature range. All typical values are measured at V
CC
=
5V, T
A
=
25
C.
Switching Characteristics
over recommended operating free air temperature range
Supply Voltage
7V
Input Voltage
7V
Operating Free Air Temperature Range
0
C to
+
70
C
Storage Temperature Range
-
65
C to
+
150
C
Typical
JA
N Package
84.0
C/W
M Package
114.0
C/W
Symbol
Parameter
Min
Nom
Max
Units
V
CC
Supply Voltage
4.5
5
5.5
V
V
IH
HIGH Level Input Voltage
2
V
V
IL
LOW Level Input Voltage
0.8
V
I
OH
HIGH Level Output Current
-
2
mA
I
OL
LOW Level Output Current
20
mA
T
A
Free Air Operating Temperature
0
70
C
Symbol
Parameter
Conditions
Min
Typ
Max
Units
V
IK
Input Clamp Voltage
V
CC
=
4.5V, I
I
=
-
18 mA
-
1.2
V
V
OH
HIGH Level
I
OH
=
-
2 mA
V
CC
-
2
V
Output Voltage
V
CC
=
4.5V to 5.5V
V
OL
LOW
Level V
CC
=
4.5V
0.35
0.5
V
Output Voltage
I
OL
=
20 mA
I
I
Input Current at Max Input Voltage
V
CC
=
5.5V, V
IH
=
7V
0.1
mA
I
IH
HIGH Level Input Current
V
CC
=
5.5V, V
IH
=
2.7V
20
A
I
IL
LOW Level Input Current
V
CC
=
5.5V, V
IL
=
0.4V
-
0.5
mA
I
O
Output Drive Current
V
CC
=
5.5V, V
O
=
2.25V
-
30
-
112
mA
I
CC
Supply Current
V
CC
=
5.5V
Outputs HIGH
5.8
9.3
mA
Outputs LOW
14.9
24
mA
Symbol
Parameter
Conditions
Min
Max
Units
t
PLH
Propagation Delay Time
V
CC
=
4.5V to 5.5V
1
5.5
ns
LOW-to-HIGH Level Output
R
L
=
500
t
PHL
Propagation Delay Time
C
L
=
50 pF
1
5.5
ns
HIGH-to-LOW Level Output
3
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DM74AS08
Physical Dimensions
inches (millimeters) unless otherwise noted
14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow
Package Number M14A
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4
D
M
74AS08 Quad
2
-
I
nput AND
Gate
Physical Dimensions
inches (millimeters) unless otherwise noted (Continued)
14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
Package Number N14A
Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and
Fairchild reserves the right at any time without notice to change said circuitry and specifications.
LIFE SUPPORT POLICY
FAIRCHILD'S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD
SEMICONDUCTOR CORPORATION. As used herein:
1. Life support devices or systems are devices or systems
which, (a) are intended for surgical implant into the
body, or (b) support or sustain life, and (c) whose failure
to perform when properly used in accordance with
instructions for use provided in the labeling, can be rea-
sonably expected to result in a significant injury to the
user.
2. A critical component in any component of a life support
device or system whose failure to perform can be rea-
sonably expected to cause the failure of the life support
device or system, or to affect its safety or effectiveness.
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