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DM74ALS02
Quad 2-Input NOR Gate
DM74ALS02 Quad 2-Input NOR Gate
September 1986
Revised February 2000
General Description
This device contains four independent gates, each of which
performs the logic NOR function.
Features
■ Switching specifications at 50 pF
■ Switching specifications guaranteed over full tempera-
ture and V
■ Advanced oxide-isolated, ion-implanted Schottky TTL
process
■ Functionally and pin for pin compatible with Schottky
and low power Schottky TTL counterpart
■ Improved AC performance over Scho ttky and low power
Schottky counterparts
CC
range
Ordering Code:
Order Number Package Number Package Description
DM74ALS02M M14A 14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow
DM74ALS02SJ M14D 14-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
DM74ALS02N N14A 14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
Devices also availab le in Tape and Reel. Specify by appending th e s uffix let t er “X” to the ordering cod e.
Connection Diagram Function Table
Y = A + B
Inputs Output
AB Y
LL H
LH L
HL L
H = HIGH Logic Level
L = LOW Logic Level
HH L
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Absolute Maximum Ratings(Note 1)
Supply Voltage 7V
Input Voltage 7V
Operating Free Air Temperature Range 0°C to +70°C
DM74ALS02
Storage Temperature Range −65°C to +150°C
Typical θ
JA
N Package 86.5°C/W
M Package 116.0°C/W
Note 1: The “Absolute Maximum Ratin gs” are those v alues beyon d which
the safety of the dev ice cannot be guaranteed. T he device sh ould not be
operated at these limits. The parametric values defined in the Electrical
Characteristics tables are not guaranteed at the absolute maximum ratings.
The “Recommend ed O peratin g Cond itions” t able w ill defin e the c ondit ions
for actual device operation.
Recommended Operating Conditions
Symbol Parameter Min Nom Max Units
V
CC
V
IH
V
IL
I
OH
I
OL
T
A
Supply Voltage 4.5 5 5.5 V
HIGH Level Input Voltage 2 V
LOW Level Input Voltage 0.8 V
HIGH Level Output Current −0.4 mA
LOW Level Output Current 8 mA
Free Air Operating Temperature 0 70 °C
Electrical Characteristics
over recommended operating free air temperature range. All typical values are measured at VCC = 5V, TA = 25°C.
Symbol Parameter Conditions Min Typ Max Units
V
IK
V
OH
V
OL
I
I
I
IH
I
IL
I
O
I
CC
Input Clamp Voltage VCC = 4.5V, II = −18 mA −1.5 V
HIGH Level IOH = −0.4 mA
Output Voltage VCC = 4.5V to 5.5V
LOW Level
Output Voltage
Input Current @ Max.
Input Voltage
HIGH Level Input Current VCC = 5.5V, VIH = 2.7V 20 µA
LOW Level Input Current VCC = 5.5V, VIL = 0.4V −0.1 mA
Output Drive Current VCC = 5.5V VO = 2.25V −30 −112 mA
Supply Current VCC = 5.5V Outputs HIGH 0.85 2.2 mA
VCC = 4.5V IOL = 8 mA 0.35 0.5 V
VCC = 5.5V, VIH = 7V 0.1 mA
Outputs LOW 2.16 4 mA
VCC − 2V
Switching Characteristics
over recommended operating free air temperature range.
Symbol Parameter Conditions Min Max Units
t
PLH
t
PHL
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Propagation Delay Time VCC = 4.5V to 5.5V
LOW-to-HIGH Level Output RL = 500Ω
Propagation Delay Time CL = 50 pF
HIGH-to-LOW Level Output
312ns
3 10 ns
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Physical Dimensions inches (millimeters) unless otherwise noted
DM74ALS02
14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow
Package Number M14A
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Physical Dimensions inches (millimeters) unless otherwise noted (Continued)
DM74ALS02
14-Lead Small Outline Package ( SOP), EIAJ TYPE II, 5.3mm Wide
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Package Number M14D
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Physical Dimensions inches (millimeters) unless otherwise noted (Continued)
DM74ALS02 Quad 2-Input NOR Gate
14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent license s 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 provide d in the labe l ing, can be re asonably expected to result in a significant injury to the
user.
Package Number N14A
2. A critical componen t in any com ponen t of a life s upport
device or system whose failu re to perform can b e reasonably expected to cause the failure of the life support
device or system, or to affect its safety or effectiveness.
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