© 2000 Fairchild Semiconductor Corporation DS006254 www .fairchildsemi.com
September 1986
Revised February 2000
DM74ALS1008A Quadruple 2-Input AND Buffer
DM74ALS1008A
Quadruple 2-Input AND Buffer
General Descript ion
These devices contain four independent 2-input buffers,
each of which performs the logic AND function. The
DM74AL S1008A i s a buff er versi o n of the DM 74ALS08.
Features
Switching specifications at 50 pF
Switching specifications guaranteed over full tempera-
ture and VCC range
Advanced oxide-isolated, ion-implanted Schottky TTL
process
Improved line receiving characteristics
Ordering Code:
Devices also available in Tape and R eel. Speci fy by appending the s uffix let t er “X” to the o rdering c ode.
Connection Diagram Function Table
Y = AB
L = LOW Logic Lev el
H = HIGH Logic Level
Order Number Packag e Num b er Packag e Desc rip ti on
DM74ALS1008AM M14A 14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow
DM74ALS1008AN N14A 14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
Inputs Output
ABY
LLL
LHL
HLL
HHH
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DM74ALS1008A
Absolute Maximum Ratings(Note 1)
Note 1: The “Absolute Maximum Ratings” are those values beyond which
the saf ety of the device cannot be guarante ed. The device s hould not be
operated at these limits. The parametric values defined in the Electrical
Characteristics tables are no t gua rant eed at the absolute maximum rati n gs.
The “Re comme nded Operat ing Co ndition s” table will define the cond itions
for actu al device operation.
Recommended Operating Conditions
Electrical Characteristics
over recommended operating free air temperature range. All typical values are measured at VCC = 5V, TA = 25°C.
Switching Characteri stics
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 Rang e 65°C to +150°C
Typical θJA
N Package 83.0°C/W
M Package 114.0°C/W
Symbol Parameter Min Nom Max Units
VCC Supply Voltage 4.5 5 5.5 V
VIH HIGH Level Input Voltage 2 V
VIL LOW Level Input Voltage 0.8 V
IOH HIGH Level Output Current 2.6 mA
IOL LOW Level Output Current 24 mA
TAFree Air Operating Temperature 0 70 °C
Symbol Parameter Conditions Min Typ Max Units
VIK Input Clamp Voltage VCC = 4.5V, II = 18 m A 1.5 V
VOH HIGH Level VCC = 4.5V IOH = Max 2.4 3.2 V
Output Voltage VIH = 2V
VCC = 4.5V to 5.5V IOH = 400 µAV
CC 2V
VOL LOW Level VCC = 4.5V IOL = 12 mA 0.25 0.4 V
Output Voltage VIL = VIL Max IOL = 24 mA 0.35 0.5 V
IIInput Current @ Maximum Input Voltage VCC = 5.5V, VIH = 7V 0.1 mA
IIH HIGH Level Input Current VCC = 5.5V, VIH = 2.7V 20 µA
IIL LOW Level Input Current VCC = 5.5V, VIL = 0.4V 0.1 mA
IOOutput Drive Current VCC = 5.5V, VO = 2.25V 30 112 mA
ICCH Supply Current with Outputs HIGH VCC = 5.5V, VI = 4.5V 1.8 3 mA
ICCL Supply Current with Outputs LOW VCC = 5.5V, VI = 0V 5.7 9.3 mA
Symbol Parameter Conditions Min Max Units
tPLH Propagation Delay Time VCC = 4.5V to 5.5V 29ns
LOW-to-HIGH Level Output RL = 500
tPHL Propagation Delay Time CL = 50 pF 39ns
HIGH-to-LOW Level Output
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DM74ALS1008A
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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DM74ALS1008A Quadruple 2-Input AND Buffer
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 no t assume any responsibility for use of any circuitry describ ed, no circuit patent licenses are implied a nd
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 suppor t de vices o r systems a re devices or syste ms
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 compon ent i n any compon ent of a life su pport
device or system whose failure to perform can be rea-
sonabl y ex pect ed to ca use the fa i lure of the life su pp ort
device or system, or to affect its safety or effectiveness.
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