DM74AS08 Quad 2-Input AND Gate
September 1986
Revised March 2000
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:
Order Number
DM74AS08M
DM74AS08N
Package Number
M14A
N14A
Package Description
14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow
14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Connection Diagram
Function Table
Y
=
AB
Inputs
A
L
L
H
H
H
=
HIGH Logic Level
L
=
LOW Logic Level
Output
B
L
H
L
H
Y
L
L
L
H
© 2000 Fairchild Semiconductor Corporation
DS006106
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DM74AS08
Absolute Maximum Ratings
(Note 1)
Supply Voltage
Input Voltage
Operating Free Air Temperature Range
Storage Temperature Range
Typical
θ
JA
N Package
M Package
84.0°C/W
114.0°C/W
7V
7V
0°C to
+70°C
−65°C
to
+150°C
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
Symbol
V
CC
V
IH
V
IL
I
OH
I
OL
T
A
Supply Voltage
HIGH Level Input Voltage
LOW Level Input Voltage
HIGH Level Output Current
LOW Level Output Current
Free Air Operating Temperature
0
Parameter
Min
4.5
2
0.8
−2
20
70
Nom
5
Max
5.5
Units
V
V
V
mA
mA
°C
Electrical Characteristics
over recommended operating free air temperature range. All typical values are measured at V
CC
=
5V, T
A
=
25°C.
Symbol
V
IK
V
OH
V
OL
I
I
I
IH
I
IL
I
O
I
CC
Parameter
Input Clamp Voltage
HIGH Level
Output Voltage
LOW Level
Output Voltage
HIGH Level Input Current
LOW Level Input Current
Output Drive Current
Supply Current
I
OH
= −2
mA
V
CC
=
4.5V to 5.5V
V
CC
=
4.5V
I
OL
=
20 mA
V
CC
=
5.5V, V
IH
=
2.7V
V
CC
=
5.5V, V
IL
=
0.4V
V
CC
=
5.5V, V
O
=
2.25V
V
CC
=
5.5V
Outputs HIGH
Outputs LOW
−30
5.8
14.9
Conditions
V
CC
=
4.5V, I
I
= −18
mA
V
CC
−
2
0.35
0.5
0.1
20
−0.5
−112
9.3
24
Min
Typ
Max
−1.2
Units
V
V
V
mA
µA
mA
mA
mA
mA
Input Current at Max Input Voltage V
CC
=
5.5V, V
IH
=
7V
Switching Characteristics
over recommended operating free air temperature range
Symbol
t
PLH
t
PHL
Parameter
Propagation Delay Time
LOW-to-HIGH Level Output
Propagation Delay Time
HIGH-to-LOW Level Output
R
L
=
500Ω
C
L
=
50 pF
Conditions
V
CC
=
4.5V to 5.5V
Min
1
1
Max
5.5
5.5
Units
ns
ns
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2
DM74AS08
Physical Dimensions
inches (millimeters) unless otherwise noted
14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow
Package Number M14A
3
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DM74AS08 Quad 2-Input 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.
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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.
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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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